ASP.NET Core API response becomes slow when handling multiple concurrent requests with Entity Framework https://askubuntu.com/questions/1565910/asp-net-core-api-response-becomes-slow-when-handling-multiple-concurrent-request

I am currently developing a Web API using ASP.NET Core with Entity Framework Core and SQL Server. It runs perfectly well with a couple of users, but when more than one request comes into the system simultaneously, its performance degrades drastically.

Below is a sample of the code I have written:

public async Task<IActionResult> GetUsers()
{
    var users = await _context.Users.ToListAsync();
    return Ok(users);
}

Environmental Information:

  • ASP.NET Core 7
  • Entity Framework Core
  • SQL Server
  • Approximately 50–100 simultaneous requests while testing

Issue: As the number of simultaneous requests grows, response time is incredibly slow and CPU utilization increases. At times, requests are timed out.

My Attempts at Solution:

  • Examined database indexes
  • Enabled logging for tracking query
  • processing Performed testing using small data

sets

Query: What might be the reason for this issue during simultaneous requests, and what measures can be taken to enhance performance in such a situation?

Ubuntu "sensors" command: Composite temperature is fine (48.9°C) but Sensor 1 is high (70.8°C)? https://askubuntu.com/questions/1565907/ubuntu-sensors-command-composite-temperature-is-fine-48-9c-but-sensor-1-is

The version of the OS is Ubuntu 22.04. When I checked the temperature with sensors command, one of the SSDs shows high temperature in one of the sensors (Sensor 1), but OK Composite temperature.

  • Adapter: PCI adapter

  • Composite: +48.9°C (low = -40.1°C, high = +89.8°C) (crit = +93.8°C)

  • Sensor 1: +70.8°C (low = -273.1°C, high = +65261.8°C)

  • Sensor 2: +40.9°C (low = -273.1°C, high = +65261.8°C)

Why is the Sensor 1 temperature so high and should I do anything about it? It may be the SSD sitting under the GPU (RTX6000 series), but the GPU is currently idle and the GPU itself is 31°C.

Netplan: Message "WARNING:root:Unknown device type: vlan" https://askubuntu.com/questions/1565906/netplan-message-warningrootunknown-device-type-vlan

My netplan

version: 2
renderer: NetworkManager

ethernets:
    enp0s3:                
        link-local: []
vlans:
    vlan201:  
        id: 201
        link: enp0s3
        dhcp4: no
        dhcp6: no
        addresses:
        - 192.168.20.206/24 

After applying

sudo netplan --debug apply
** (generate:12130): DEBUG: 08:48:22.171: starting new processing pass
** (generate:12130): DEBUG: 08:48:22.171: We have some netdefs, pass them through a final round of validation
** (generate:12130): DEBUG: 08:48:22.171: enp0s3: setting default backend to 2
** (generate:12130): DEBUG: 08:48:22.171: Configuration is valid
** (generate:12130): DEBUG: 08:48:22.171: vlan201: setting default backend to 2
** (generate:12130): DEBUG: 08:48:22.171: Configuration is valid
** (generate:12130): DEBUG: 08:48:22.172: Generating output files..
** (generate:12130): DEBUG: 08:48:22.172: networkd: definition enp0s3 is not for us (backend 2)
** (generate:12130): DEBUG: 08:48:22.172: Open vSwitch: definition enp0s3 is not for us (backend 2)
** (generate:12130): DEBUG: 08:48:22.172: networkd: definition vlan201 is not for us (backend 2)
** (generate:12130): DEBUG: 08:48:22.172: Open vSwitch: definition vlan201 is not for us (backend 2)
** (process:12128): DEBUG: 08:48:22.809: starting new processing pass
** (process:12128): DEBUG: 08:48:22.814: We have some netdefs, pass them through a final round of validation
** (process:12128): DEBUG: 08:48:22.815: enp0s3: setting default backend to 2
** (process:12128): DEBUG: 08:48:22.815: Configuration is valid
** (process:12128): DEBUG: 08:48:22.815: vlan201: setting default backend to 2
** (process:12128): DEBUG: 08:48:22.815: Configuration is valid
** (process:12128): DEBUG: 08:48:23.049: starting new processing pass
** (process:12128): DEBUG: 08:48:23.050: We have some netdefs, pass them through a final round of validation
** (process:12128): DEBUG: 08:48:23.050: enp0s3: setting default backend to 2
** (process:12128): DEBUG: 08:48:23.050: Configuration is valid
** (process:12128): DEBUG: 08:48:23.050: vlan201: setting default backend to 2
** (process:12128): DEBUG: 08:48:23.050: Configuration is valid
** (process:12128): DEBUG: 08:48:23.050: starting new processing pass
** (process:12128): DEBUG: 08:48:23.050: We have some netdefs, pass them through a final round of validation
** (process:12128): DEBUG: 08:48:23.050: enp0s3: setting default backend to 2
** (process:12128): DEBUG: 08:48:23.050: Configuration is valid
** (process:12128): DEBUG: 08:48:23.050: vlan201: setting default backend to 2
** (process:12128): DEBUG: 08:48:23.050: Configuration is valid

But i see: tripple WARNING:root:Unknown device type: vlan

sudo netplan status
WARNING:root:Unknown device type: vlan
WARNING:root:Unknown device type: vlan
WARNING:root:Unknown device type: vlan
     Online state: offline
    DNS Addresses: 127.0.0.53 (stub)
       DNS Search: .

●  1: lo ethernet UNKNOWN/UP (unmanaged)
      MAC Address: 00:00:00:00:00:00
        Addresses: 127.0.0.1/8
                   ::1/128
           Routes: ::1 metric 256

●  2: enp0s3 ethernet UP (NetworkManager: enp0s3)
      MAC Address: 08:00:27:e8:60:74 (Intel Corporation)
        Addresses: 169.254.218.23/16 (link)
    DNS Addresses: 10.165.134.101
                   fd17:625c:f037:2::3
           Routes: 169.254.0.0/16 from 169.254.218.23 metric 100 (link)
                   224.0.0.0/4 metric 100 (static, link)

●  7: vlan201 other UP (NetworkManager: vlan201)
      MAC Address: 08:00:27:e8:60:74
        Addresses: 192.168.20.206/24
                   fe80::a00:27ff:fee8:6074/64 (link)
           Routes: 169.254.0.0/16 metric 1000 (boot, link)
                   192.168.20.0/24 from 192.168.20.206 metric 400 (link)
                   fe80::/64 metric 256

Everything works fine—the VLAN is functioning as it should.

Perhaps this isn't a problem, but I'd like to understand the reason for the warning messages.

I tried removing the renderer: the warning messages remain.

Nvidia driver for Zotac RTX 5060 Ti 16GB, black screen after restart https://askubuntu.com/questions/1565904/nvidia-driver-for-zotac-rtx-5060-ti-16gb-black-screen-after-restart

I have a gaming PC having Zotac RTX 5060 Ti 16GB. I installed Ubuntu 20.04, 22.04, 25.10, 26.04 beta, but in all of these versions the Nvidia GPU driver can't install. I tried to install 550, 570, 580 and 590. After installation on reboot a black screen appears.

Kernel panic during Ubuntu 22.04 installation https://askubuntu.com/questions/1565903/kernel-panic-during-ubuntu-22-04-installation

I encountered a kernel panic during Ubuntu 22.04 installation on a ZTE server (Hygon C86 CPU). What could be causing this?

[    2.505887]  ? do_error_trap+0x6f/0xb0
[    2.505887]  ? rdt_get_mon_l3_config+0x5b/0x120
[    2.505887]  ? exc_divide_error+0x3b/0x60
[    2.505887]  ? rdt_get_mon_l3_config+0x5b/0x120
[    2.505887]  ? asm_exc_divide_error+0x1b/0x20
[    2.505887]  ? rdt_get_mon_l3_config+0x5b/0x120
[    2.505887]  ? check_quirks+0x103/0x103
[    2.505887]  resctrl_late_init+0x118/0x2aa
[    2.505887]  ? check_quirks+0x103/0x103
[    2.505887]  do_one_initcall+0x49/0x1e0
[    2.505887]  do_initcalls+0x12f/0x159
[    2.505887]  kernel_init_freeable+0x162/0x1b5
[    2.505887]  ? rest_init+0x100/0x100
[    2.505887]  kernel_init+0x1b/0x150
[    2.505887]  ? rest_init+0x100/0x100
[    2.505887]  ret_from_fork+0x22/0x30
[    2.505887]  </TASK>
[    2.505887] Modules linked in:
[    2.615329] ---[ end trace b09aeda73b7491db ]---
[    2.618876] RIP: 0010:rdt_get_mon_l3_config+0x5b/0x120
[    2.622442] Code: c7 83 a4 00 00 00 18 00 00 00 8d 7e 01 89 7b 08 83 fa 25 77 2f 83 c0 18 89 83 a4 00 00 00 44 89 e0 31 d2 c1
e0 0a f7 f7 31 d2 <f7> f7 31 d2 85 18 03 e8 78 f6 ff ff 85 c0 74 13 5b 41 5c 5d e9
[    2.629880] RSP: 0018:ffffb4cac006bda8 EFLAGS: 00010246
[    2.633555] RAX: 0000000000080000 RBX: ffffffffbce52300 RCX: 0000000000000000
[    2.637199] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
[    2.640724] RBP: ffffb4cac006bdb8 R08: ffffb4cac006bd60 R09: ffffb4cac006bd64
[    2.644215] R10: 0000000000000000 R11: ffff8cc627003200 R12: 0000000000000200
[    2.647691] R13: 0000000000000182 R14: ffff8cc602209b80 R15: 0000000000000008
[    2.651158] FS:  0000000000000000(0000) GS:ffff8cd52df00000(0000) knlGS:0000000000000000
[    2.654665] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.658146] CR2: 0000000000000000 CR3: 00000004bc210000 CR4: 0000000000350ee0
[    2.661750] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[    2.661754] clocksource: Switched to clocksource tsc
[    2.665194] Kernel Offset: 0x3a000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[    2.665194] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]---
Ubuntu 24.04 latest update - Can't use WiFi, cabled internet, or cable hotspot https://askubuntu.com/questions/1565902/ubuntu-24-04-latest-update-cant-use-wifi-cabled-internet-or-cable-hotspot

Ubuntu 24.04.4 LTS

Linux 6.17.0-22generic

X86-64

Ethernet controller RTL8125, Network controller Fastconnect 7800

Command line input ping -c 4 8.8.8.8 gives Network is unreachable but Command line input nmcli device show gives lo, loopback, 00:00:00:00:00:00, 65536, 100 (connected externally), lo, /org/freedesktop/NetworkManager/ActiveConnection/1, 127.0.0.1/8, - -, ::1/128, - -

It's not seeing the cabled modem or WiFi, and cable hotspot too. Headphones are also not working, and it seems to be ignoring the graphics card. Are there any other options I can use to try to fix this, so I can try to revert the update?

It was working OK before, although RSSEED32 has been broken for a few months, so the corresponding Cruid? had been disabled. I believe it was some kind of workaround for an unfixable physical security flaw.

Annoying "usb 3-2.3: device descriptor read/64, error -110" errors https://askubuntu.com/questions/1565901/annoying-usb-3-2-3-device-descriptor-read-64-error-110-errors

I have found similar questions, but the suggested methods didn't work for me. Basically every time I boot I get a lot of these errors. dmesg shows that this occurs several times before the system gives up with usb 3-2-port3: unable to enumerate USB device.

I have searched a lot, but nothing seems to be working. Here's things I have done/noticed:

  • Cleaning, unplugging everything, restarting, removing battery, ...

  • lsusb -t doesn't list anything with bus 3 port 2.3

  • I think the faulty device is the fingerprint reader, since it never worked properly and now I noticed that the laptop doesn't even detect it anymore (and I don't see any device resembling it when running lsusb)

  • I can't lock it from the bios. I tried to lock other devices just to try, like the entire touchpad (on which the fingerprint reader sits), but the error persists.

  • I tried writing a udev rule to unauthorize the device, but it didn't work.

I don't really know what to try anymore, but the problem is really annoying, since it occurs every time I "unsuspend" or boot my system, and sometimes shutdown and suspend freeze for some time before succeeding, and I think it's because of this.

Audacity Macros Interrupt All Other Activity https://askubuntu.com/questions/1565894/audacity-macros-interrupt-all-other-activity

I'm on Ubuntu 24.04 LTS. I sometimes edit large numbers of audio clips according to some set rules, and I have a macro set up in Audacity that does exactly what I want. Unfortunately, if I run this macro on 20-50 files or so, Audacity's dialog boxes pop up and seize focus every time one of the files is processed with the macro. This means I basically need to stop using my computer while it's running, since I can't do anything else for more than a second or three at a time before Audacity interrupts me. Depending on the number and size of the files, this can take 5-15 minutes at a time.

I've tried a variety of ways to mess with focus raising and focus stealing settings to make Audacity work quietly in the background, including using CompizConfig Settings Manager to modify the Focus & Raise Behavior, and running Audacity in a different workspace to my main workspace. I also tried a couple of other one-off suggestions I found scattered around the web as well that I can't remember. All to no avail.

I don't really mind how I do it and what levers I have to pull. I just want a way to let Audacity run its macros without interrupting anything else I'm doing on the computer. Is there some way to achieve this?

Ubuntu guide (help icon) broken https://askubuntu.com/questions/1565893/ubuntu-guide-help-icon-broken

24.04 LTS: Launching the ubuntu guide (blue question mark icon), shows a working 'hand' pointer for a few seconds then freezes (no mouse or keyboard) requiring a hard reset. Never used the guide before so it may have always been broken.

History of changes [duplicate] https://askubuntu.com/questions/1565891/history-of-changes

Is there a way to identify all the changes that have been made to a specific install of 24.04? If I wanted to go back to a point before I installed package x and its dependancies, I would at least need to list all packages by date of install.

WiFi Signal Strength Indicator Not Correct https://askubuntu.com/questions/1565890/wifi-signal-strength-indicator-not-correct

Running Ubuntu 25.10 and during a recent update my WiFi strength indicator dropped to one bar even though signal strength is strong. How can I fix? My WiFi adapter is an Intel AX210NGW 6E however the issue started with my original adapter that came in a Dell Inspiron 15 notebook computer. My actual signal strength is -49 dBm:

Connected to 72:f5:1b:66:50:a5 (on wlp1s0)
    SSID: Verizon_7KMRWR
    freq: 5320.0
    RX: 137455689 bytes (122465 packets)
    TX: 20605730 bytes (34461 packets)
    signal: -49 dBm
    rx bitrate: 1200.9 MBit/s 80MHz HE-MCS 11 HE-NSS 2 HE-GI 0 HE-DCM 0
    tx bitrate: 1200.9 MBit/s 80MHz HE-MCS 11 HE-NSS 2 HE-GI 0 HE-DCM 0
    bss flags: short-slot-time
    dtim period: 3
    beacon int: 100
Lenovo Thinkpad LAN USB 3.0 to Ethernet adapter https://askubuntu.com/questions/1565889/lenovo-thinkpad-lan-usb-3-0-to-ethernet-adapter

We have a payment system currently running windows 10 on Raspberry Pi's. A Linux platform is now in development instead.

Right now we can access those RPI's via Teamviewer over a MiniPC or an Intel Stick in each location.

Making to move to Linux, it makes sense to transform those MiniPC's to Ubuntu Server (jumphost) and connect to the PI's through SSH.

I have installed Ubuntu Server 24.04 on one of them.

Now I just need to get a connection through on the LAN adapter.

Got a script on how-to from the developers off our payment system.

Netplan for this.

enter image description here

Changing parameters to this.

enter image description here

And that's where the guide sort of ends.

When I save it, what should I call it?

It suggests the same name as when I opened Netplan, but that can't be right.

I asked Gemini, but that's just as unclear as the guide.

screen freezes after installation https://askubuntu.com/questions/1565887/screen-freezes-after-installation

I installed Ubuntu 24.04 on a Mac with Intel chips. But when the first screen appeared where I would select the language, the screen froze, no movement of arrow keys or mouse was possible.

What is the terminal that openbox session or log in use in lubuntu 22.04? https://askubuntu.com/questions/1565886/what-is-the-terminal-that-openbox-session-or-log-in-use-in-lubuntu-22-04

I was trying to use openbox login in session at startup (the light bluescreen ofLubuntu 22.04 where I can choice Lubuntu or lxqt or OpenBox (I am specking about this openbox of start up I mean session login, and not about window manager of Lubuntu session).

I use Lubuntu 22.04 with2 GB RAM so I was thinking that open box would be an interesting alternative..

Lubuntu has openbox, I don't need to download openbox

I was trying because I failed to use openbox: the terminal from menu popup do nothing. and the pop up menu only work gnome charmap and tint2

I installed (I saw vids on yout...) obmenu tint2 and terminals: Terminator, xterm an lxterminal from my distro (now 5 was uninstalled) because never I could use terminal ...

What is the terminal that openbox use?

Thank you and Regards!

LibreOffice added blue dots and a "Responsible" field on each page after saving the file https://askubuntu.com/questions/1565865/libreoffice-added-blue-dots-and-a-responsible-field-on-each-page-after-saving

I was editing a file that I assume was originally created with MS Office power point. When I was done with my edits and saved the file, LibreOffice added blue dots and a box with text "Responsible: Text" on every page. How do I remove them? enter image description here

Ubuntu 24.04.4, installation on new Win11 machine https://askubuntu.com/questions/1565863/ubuntu-24-04-4-installation-on-new-win11-machine

I had an identical machine HP 14s dq3xxx with absolutely no problem running 24.04.4
Except one coffee spill too many and it died.

New Laptop came with Win 11, turned off Bit Locker, installed 24.04.4.
On installation I turned Windows Bitlocker off. Just like last time.
Only the hard drive has gone, the only drive is described as a "card reader".
Has anyone got any thoughts on what I've done?

Thanks. Paul

Many Windows Steam games (mostly multiplayer shooters) crash on startup https://askubuntu.com/questions/1565801/many-windows-steam-games-mostly-multiplayer-shooters-crash-on-startup

I am about 3-4 weeks new to Ubuntu, downloading it in a bid to not install Windows 11, and for those weeks I've been trying my hardest to get my Steam games working on this device, to no avail.

Some games do work. I was able to get PEAK working on my computer after a LOT of setup, and single player games/really old point and clicks (e.g. Dave the Diver, Sam and Max Hit the Road, IHNMAIMS) work perfectly (though this could just be because of how simplistic they are).

Games such as Deadlock, Marvel Rivals, and The Outlast Trials, more high-fidelity games with a high amount of multiplayer however don't boot up. The best I've gotten is Deadlock, which I've been able to get the launch screen up until it crashes. Unfortunately all the answers I've seen on this website are either not working, or are simply too complex for my newbie brain to comprehend. I have gamemode installed and configured, GeProton is installed and applied to all desired games, ProtonTricks is installed, though I have no idea idea how to use it, and my Driver package is nvidia-driver-535.

Here is the last terminal log I recorded with Deadlock, gained by running Steam through Terminal. If I had to guess what the problem was, it would be the system is not recognizing libgamemode.so, despite it being on the device.

wine: using kernel write watches, use_kernel_writewatch 1.
fsync: up and running.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
Fossilize INFO: Setting autogroup scheduling.
Fossilize INFO: Setting autogroup scheduling.
Game Recording - would start recording game 1422450, but recording for this game is disabled
Adding process 135751 for gameID 1422450
chdir "/home/wolfwitchery/.steam/debian-installation/steamapps/common/Deadlock"
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
WARNING: discarding _NET_WM_PID 3 as invalid for X11 window - use specialized XCB_X11_TO_PID function!
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 135752 for gameID 1422450
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
gamemodeauto: 
ERROR: ld.so: object 'libgamemodeauto.so.0' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 135767 for gameID 1422450
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 135768 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
Adding process 135851 for gameID 1422450
ProtonFixes[135851] INFO: Running protonfixes
ProtonFixes[135851] INFO: Running checks
ProtonFixes[135851] INFO: All checks successful
ProtonFixes[135851] INFO: Using global defaults for "Deadlock" (1422450)
ProtonFixes[135851] INFO: No global protonfix found for "Deadlock" (1422450)
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
Adding process 135853 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
Adding process 135854 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
fsync: up and running.
Adding process 135856 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135859 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135861 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135865 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135871 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135880 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135892 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135909 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Setting breakpad minidump AppID = 1422450
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561198817498078 [API loaded no]
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135926 for gameID 1422450
Fossilize INFO: Overriding serialization path: "/home/wolfwitchery/.steam/debian-installation/steamapps/shadercache/1422450/fozpipelinesv6/steamapprun_pipeline_cache".
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
04/16 21:54:00 minidumps folder is set to /tmp/dumps
04/16 21:54:00 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(20260313015227)/tid(135988)
04/16 21:54:00 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)/tid(135988)
wine: setpriority -10 for pid -1 failed: 3
wine: setpriority -1 for pid -1 failed: 3
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
pid 135857 != 135856, skipping destruction (fork without exec?)
Game Recording - game stopped [gameid=1422450]
Removing process 135926 for gameID 1422450
Removing process 135909 for gameID 1422450
Removing process 135892 for gameID 1422450
Removing process 135880 for gameID 1422450
Removing process 135871 for gameID 1422450
Removing process 135865 for gameID 1422450
Removing process 135861 for gameID 1422450
Removing process 135859 for gameID 1422450
Removing process 135856 for gameID 1422450
Removing process 135854 for gameID 1422450
Removing process 135853 for gameID 1422450
Removing process 135851 for gameID 1422450
Removing process 135768 for gameID 1422450
Removing process 135767 for gameID 1422450
Removing process 135752 for gameID 1422450
Removing process 135751 for gameID 1422450
reaping pid: 135988 -- gameoverlayui

My specs are this currently. Please note that before downloading Ubuntu, I was able to get these games running nearly perfectly.

Static hostname: wolfwitchery 
Icon name: computer-desktop  
Chassis: desktop 🖥️
Machine ID: 45b0a1bba4b14060a6fb02232925f4e3
Boot ID: 59b851cc9e3649a3af351c2dae44d3b1
Operating System: Ubuntu 24.04.4 LTS              
Kernel: Linux 6.17.0-20-generic
Architecture: x86-64
Hardware Vendor: Dell Inc.
Hardware Model: Precision Tower 7810
Firmware Date: Mon 2020-10-19
Firmware Age: 5y 5month 3w 1d   

Please help me with this. I'm at my wits end, am not going back to Windows for the life of me, and I not really welcome to the idea of booting another OS such as Arch and drafting all my files to that system just to have a better chance. It's already been a pain in the ass just to get Ubuntu working.

Wifi, blutooth, screen brightness disappeared in ubuntu 24.04.2 https://askubuntu.com/questions/1555151/wifi-blutooth-screen-brightness-disappeared-in-ubuntu-24-04-2

I am using ubuntu24.04.2, and suddenly wifi, bluetooth, and screen brightness disappeared from the icons in the screen above right. And when I go to wifi or blutooth in settings, it tells me that wifi adapter and bluetooth not found. What may be the problem. NOTE: They were existent before, but they suddenly disappeared

How can I fix my Ubuntu 24.04 with broken package system? https://askubuntu.com/questions/1526455/how-can-i-fix-my-ubuntu-24-04-with-broken-package-system

I am contacting you in order to receive help to repair my Ubuntu OS. Two weeks ago I tried to install a protection against viruses and other cyber threats on my Ubuntu 22.04 system, but I did something wrong, which resulted in the APP Center being completely deleted and therefore, the applications for Mozilla Firefox, Chromium, Music Player as well as Clementine, among other applications, being uninstalled. To try to solve the problem, I upgraded from Ubuntu 22.04 to Ubuntu 24.04, thinking that all the packages would be reinstalled and everything would go back to normal. But that was not the case, now everything remains the same and the software updater does not work when installing updates, warning me that: The package system is broken. I would greatly appreciate your help in this regard. My laptop is a Lenovo G50-70 and the OS is Ubuntu 24.04.

Is a screen capture of the Software updater to explain why it can't install the files

Ubuntu 24.04 APT - Specify Architecture Using .sources Files https://askubuntu.com/questions/1514281/ubuntu-24-04-apt-specify-architecture-using-sources-files

I have a strange thing I cannot figure out. Have checked manpages, etc. So hoping someone else had the same issue.

To convert from a normal .list file to a .sources file, as is now used in Ubuntu 24.04 LTS, I will use tor as an example:

Old way (tor.list):

deb [arch=amd64> signed-by=/usr/share/keyrings/tor-archive-keyring.gpg] https://deb.torproject.org/torproject.org jammy main
deb-src [arch=amd64> signed-by=/usr/share/keyrings/tor-archive-keyring.gpg] https://deb.torproject.org/torproject.org jammy main

New Way (tor.sources):

Types: deb
URIs: https://deb.torproject.org/torproject.org
Suites: jammy
Components: main
Signed-By: /usr/share/keyrings/tor-archive-keyring.gpg

The problem I have is this:

In the tor.sources, from what I can find, there is no way to specify the arch / architecture. I've tried arch, architecture, system, etc. Nothing works.

This is the error I get:

N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://deb.torproject.org/torproject.org jammy InRelease' doesn't support architecture 'i386'

I know this is a cosmetic thing and it mostly just effects logs, etc. But, simply finding a way to specify the arch would fix this entirely.

Anyone has any ideas?

VMware Workstation Running Ubuntu Freezes Frequently https://askubuntu.com/questions/1491730/vmware-workstation-running-ubuntu-freezes-frequently

I hope you can help me with an issue I've encountered recently.

Setup:

VM Software: VMware Workstation 17.5
Guest OS: Ubuntu 22.04.2
Host OS: Windows 11 22H2
Hardware: Intel CPU, NVIDIA GPU

Background: Everything was working fine until a few days ago.

The Problem: Recently, my Ubuntu VM started freezing intermittently. Here's what happens:

  • I can move the cursor, but clicking anywhere doesn't have any effect.
  • The keyboard becomes unresponsive and its lights turn off.
  • Animations inside the VM, such as window movements and the clock updating, remain functional.
  • I can still use CTRL + ALT to switch back to the host, which continues to work normally.
  • In rare cases, if I wait for a while, the VM becomes responsive again. However, in most instances, I have to restart it. After a restart, it works fine for a bit but eventually runs into the same problem.

What I've Tried:

  • I've searched various forums and tried suggestions such as enabling the enhanced keyboard feature, but it didn't help.
  • I attempted to create a new VM from scratch, yet the issue persists.
  • I've ensured that the VM has ample memory and threads allocated.

I'm not very knowledgeable about Ubuntu or VMs in general. Can someone guide me on how to solve this problem? What additional information do you need from me to assist further?

Thank you for your time and help!

Need to change default boot order. Instead of Ubuntu 21.04 to Windows 7 https://askubuntu.com/questions/1341389/need-to-change-default-boot-order-instead-of-ubuntu-21-04-to-windows-7

I have now three hard disks in my desktop. A Samsung SSD that boots Win7, a Toshiba HDD which is not bootable, and yesterday I added a Crucial SSD which boots Ubuntu 21.04.

If I now simply start my computer, Linux on the Crucial will boot..

If at startup I press F11 this allows to choose between these three and surprisingly, a non-existing fourth named "Ubuntu"(?). If I click on the Samsung then Windows will boot, if I click on the Crucial (or Ubuntu) Ubuntu will boot. As you can see on the left of the two pictures:

https://ibb.co/ctB75g0

The right picture shows what I get when press F2, the boot order setting at the ASRock Motherboard, while booting, I only get to "choose" between the identical Crucial and Ubuntu...

I want the Samsung to boot Win7 as default. From what I have heard, I have to do this in Ubuntu, and I know absolutely nothing about it. How do I make this change?

It was suggested to use grub-customizer for this, but as the picture shows, it does not even see the Samsung disk with the Windows.

https://ibb.co/fq1bKZC

My Win7 is not an UEFI, it is a legacy installation. Could that be the reason?

Every few minutes rsyslog outputs - rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ] https://askubuntu.com/questions/1066997/every-few-minutes-rsyslog-outputs-rsyslogd-action-action-3-resumed-module

Since my update to 18.04.1 last week from 16.04.5 I've been seeing this in my syslog every few minutes:

Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' resumed (module 'builtin:omfile') [v8.32.0 try http://www.rsyslog.com/e/2359 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), retry 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]
Aug 19 19:22:02 localhost rsyslogd: action 'action 3' suspended (module 'builtin:omfile'), next retry is Sun Aug 19 19:22:32 2018, retry nbr 0. There should be messages before this one giving the reason for suspension. [v8.32.0 try http://www.rsyslog.com/e/2007 ]

Looking at the link provided for the first error it says:

Search Results for: error 2359
rsyslog error 2359
Posted on June 13, 2018 by pwithopf 

Status: action was resumed (used for reporting)

The link on the 2nd error, 2007, shows:

rsyslog error 2007
Posted on June 11, 2018 by rgerhards    
What does it mean?

This is a generic error message that unfortunately can happen in a number of cases.
How to solve it?

A frequent case for this error message on Debian-based distributions (like   raspbian) is that rsyslog.conf contains the instruction to write to the xconsole pipe, but this pipe is never read. If so, you can simply delete these lines to remove the error message. These lines are usually found at the end of rsyslog.conf.

For other error message, it probably is a good idea to check rsyslog’s issue tracker at github and file a new issue if you can’t find a related case.

I can't see in my /etc/rsyslog.conf file what they mean by "instruction to write to the xconsole pipe"

chris@localhost:/etc$ cat rsyslog.conf
#  /etc/rsyslog.conf    Configuration file for rsyslog.
#
#           For more information see
#           /usr/share/doc/rsyslog-doc/html/rsyslog_conf.html
#
#  Default logging rules can be found in /etc/rsyslog.d/50-default.conf

#################
#### MODULES ####
#################

module(load="imuxsock") # provides support for local system logging
#module(load="immark")  # provides --MARK-- message capability

# provides UDP syslog reception
#module(load="imudp")
#input(type="imudp" port="514")

# provides TCP syslog reception
#module(load="imtcp")
#input(type="imtcp" port="514")

# provides kernel logging support and enable non-kernel klog messages
module(load="imklog" permitnonkernelfacility="on")

###########################
#### GLOBAL DIRECTIVES ####
###########################

#
# Use traditional timestamp format.
# To enable high precision timestamps, comment out the following line.
#
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat

# Filter duplicated messages
$RepeatedMsgReduction on

#
# Set the default permissions for all log files.
#
$FileOwner syslog
$FileGroup adm
$FileCreateMode 0640
$Umask 0022
$PrivDropToUser syslog
$PrivDropToGroup syslog

#
# Where to place spool and state files
#
$WorkDirectory /var/spool/rsyslog

#
# Include all config files in /etc/rsyslog.d/
#
$IncludeConfig /etc/rsyslog.d/*.conf

Version information:

apt-cache policy rsyslog
rsyslog:
  Installed: 8.32.0-1ubuntu4
  Candidate: 8.32.0-1ubuntu4
Playing iPhone (iOS10) music in Rhythmbox on Ubuntu 14.04 https://askubuntu.com/questions/846845/playing-iphone-ios10-music-in-rhythmbox-on-ubuntu-14-04

I have been using Rhythmbox on Ubuntu 14.04 to play music from my iPhone for a while now. Sometimes I get the annoying "initialize your iPhone" dialog box, but I just cancel it, unmount and reconnect my phone, and the problem is solved.

Background: Getting things to work with iOS 10

Recently, I updated to iOS 10, and mounting the iPhone stopped working. I somehow fixed this by cloning libplist, libimobiledevice, libusbmuxd, usbmuxd, and ifuse [note: ifuse doesn't seem necessary if you use gvfs], checking out the master branch in each repo, and installing via

./autogen.sh
make
sudo checkinstall

so that the package versions and dependencies could be managed via dpkg.

For libimobiledevice I also did ./autogen.sh --disable-openssl so that I'd use GnuTLS instead.

Because I had originally installed most of these packages via apt-get, I installed libplist as the dpkg package libplist1, libimobiledevice as libimobiledevice4, and libusbmuxd as libusbmuxd2. I also did echo /usr/local/lib > /etc/ld.so.conf.d/libimobiledevice-libs.conf and some extra symlinking when programs complained that /usr/lib/libimobiledevice.so.4 and such were missing.

Getting gvfs to work

ifuse will now successfully mount the iPhone, but my actual goal is to get gvfs to detect and mount the phone so that it'll work with Rhythmbox. I may have needed to do additional symlinking to even get the gvfs-related programs to run, I forget.

If I naively try to plug in my phone at this point, I (with high probability) get the error message Message did not receive a reply (timeout by message bus). I have to run /usr/lib/gvfs-gvfs-afc-volume-monitor 3+ times until I get lucky enough for the phone to mount; this seems very wrong.

Running sudo usbmuxd -f -v spams me with messages like

New client on fd 19
Client 19 connection closed
Disconnecting client fd 19

over and over, plus an instance of Receive from client fd 19 failed: Connection reset by peer and Connection reset by device 4 (3->62078). Basically, I have no idea why mounting only works intermittently. Things seem to work more often when I run usbmuxd in the foreground with -f, but that may just be confirmation bias.

When I finally do get the phone to mount, Rhythmbox will start and display the "initialize your iPhone" dialog, with two problems: (1) it hangs for a long time while loading this dialog (trying to connect with phone, possibly, or maybe Rhythmbox is just ultra slow?) and (2) if I hit "cancel," I can no longer see the phone mounted on Rhythmbox. Before, after cancelling once, I could unmount and reconnect my phone and the dialog would no longer pop up, but this method is far less reliable because I can't reliably mount my phone! So after all this...

Questions

  1. Is there a "more correct" way that I should have gone about the installations from source?
  2. How do I get gvfs to reliably mount my phone on the first try?
  3. Should I stop using gvfs/rhythmbox and start using ifuse+something else?
Sudo is not working (libsudo_util error) https://askubuntu.com/questions/824251/sudo-is-not-working-libsudo-util-error

I was trying to delete a folder and messed up. I'm getting this error while I'm trying to use sudo:

sudo: error while loading shared libraries: libsudo_util.so.0: cannot open shared object file: No such file or directory

How can I fix this?

Ubuntu 14.04 doesn't boot since 3.13.0-64 https://askubuntu.com/questions/691944/ubuntu-14-04-doesnt-boot-since-3-13-0-64

This is a Dell Inspiron 3551, with Ubuntu 14.04 64-bit preinstalled processor: Intel® Pentium(R) CPU N3540 @ 2.16GHz × 4. Quickly after system update, it starts to crash when booting.

I don't know much about Linux. I wanted to try it, that is why I choose a preinstalled Ubuntu. When it crashes, there is a bunch of text ending with a kernel panic.

Crash from September 15 after updating to 3.13.0-63:

[    1.160052] Oops: 0000 [#2] SMP
[    1.160054] Modules linked in:
[    1.160057] CPU: 2 PID: 1 Comm: swapper/0 Tainted: G        D      3.13.0-63-generic #103-Ubuntu
[    1.160058] Hardware name: Dell Inc. Inspiron 3551/0CMF7W, BIOS A04 07/07/2015
[    1.160059] task: ffff880139bb0000 ti: ffff880139afa000 task.ti: ffff880139afa000
[    1.160062] RIP: 0010:[<ffffffff815ca108>]  [<ffffffff815ca108>] __cpufreq_governor+0x18/0x230
[    1.160063] RSP: 0000:ffff880139afbc00  EFLAGS: 00010246
[    1.160064] RAX: 0000000000000000 RBX: ffff880133c99a00 RCX: 0000000000000004
[    1.160065] RDX: ffff880133c99a20 RSI: 0000000000000000 RDI: ffff880133c99a00
[    1.160066] RBP: ffff880139afbc18 R08: ffff880133c99a08 R09: 0000000000000004
[    1.160067] R10: ffff88013fd13c80 R11: 000000000000000c R12: 0000000000000003
[    1.160068] R13: 0000000000000000 R14: 0000000000000100 R15: 0000000000000100
[    1.160069] FS:  0000000000000000(0000) GS:ffff88013fd00000(0000) knlGS:0000000000000000
[    1.160070] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[    1.160071] CR2: 0000000000000030 CR3: 0000000002c0e000 CR4: 00000000001007e0
[    1.160072] Stack:
[    1.160076]  ffff880139afbc58 ffff880133c99a00 0000000000000000 ffff880139afbc48
[    1.160079]  ffffffff815ca500 ffff880133c99a00 ffff880139afbc58 ffff880133c99a00
[    1.160081]  0000000000000100 ffff880139afbdb0 ffffffff815cbaac 000000000000000f
[    1.160082] Call Trace:
[    1.160086]  [<ffffffff815ca500>] cpufreq_set_policy+0x1e0/0x2e0
[    1.160089]  [<ffffffff815cbaac>] cpufreq_init_policy+0x5c/0xb0
[    1.160092]  [<ffffffff815cb350>] ? cpufreq_update_policy+0x170/0x170
[    1.160095]  [<ffffffff815cc9b6>] __cpufreq_add_dev.isra.20+0x836/0x920
[    1.160098]  [<ffffffff815ccb70>] cpufreq_add_dev+0x10/0x20
[    1.160102]  [<ffffffff81497dd1>] subsys_interface_register+0xb1/0xf0
[    1.160104]  [<ffffffff815ca6ac>] cpufreq_register_driver+0xac/0x240
[    1.160108]  [<ffffffff81d84e9d>] ? cpufreq_gov_dbs_init+0x12/0x12
[    1.160111]  [<ffffffff81d8501e>] acpi_cpufreq_init+0x181/0x2bd
[    1.160115]  [<ffffffff8100214a>] do_one_initcall+0xfa/0x1b0
[    1.160118]  [<ffffffff810897b5>] ? parse_args+0x225/0x3f0
[    1.160122]  [<ffffffff81d350f6>] kernel_init_freeable+0x17b/0x200
[    1.160124]  [<ffffffff81d348e5>] ? do_early_param+0x88/0x88
[    1.160127]  [<ffffffff81711ed0>] ? rest_init+0x80/0x80
[    1.160129]  [<ffffffff81711ede>] kernel_init+0xe/0x130
[    1.160133]  [<ffffffff817347e8>] ret_from_fork+0x58/0x90
[    1.160135]  [<ffffffff81711ed0>] ? rest_init+0x80/0x80
[    1.160155] Code: 48 c7 43 40 90 48 cd 81 eb c2 b8 ea ff ff ff eb ca 66 90 0f 1f 44 00 00 55 48 89
[    1.160158] RIP  [<ffffffff815ca108>] __cpufreq_governor+0x18/0x230
[    1.160158]  RSP <ffff880139afbc00>
[    1.160159] CR2: 0000000000000030
[    1.160162] ---[ end trace 42dfe6bef5ae1c8a ]---
[    1.160241] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4
[    1.160280] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
[    1.160280]
"Kernel panic - not syncing: Timeout synchronizing machine check over CPUs" every time I boot from a live USB https://askubuntu.com/questions/567982/kernel-panic-not-syncing-timeout-synchronizing-machine-check-over-cpus-ever

I have been stuck on this for months. I built a new PC, and every time I try to run Linux off a live USB drive, I get this kernel panic error after picking "Try Ubuntu" in the grub menu.

[    4.875015] sd 8:0:0:0: [sdc] No Caching mode page found
[    4.875028] sd 8:0:0:0: [sdc] Assuming drive cache: write through
[   33.958039] ata8.00: exception Emask 0x52 SAct 0x0 SErr 0xffffffff action 0xe frozen
[   33.958056] ata8: SError: { RecovData RecovComm UnrecovData Persist Proto HostInt PHY
[   33.958084] ata8.00: failed command: IDENTIFY PACKET DEVICE
[   33.958096] ata8.00: cmd a1/00:01:00:00:00/00:00:00:00:00/00 tag 2 pio 512 in
[   33.958096]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x56 (ATA bus erro
[   33.958121] ata8.00: status: { DRDY }
[   57.020869] Kernel panic - not syncing: Timeout synchronizing machine check over CPUs
[   58.044277] Shutting down cpus with NMI
[   58.054520] Kernel Offset: 0x1000000 from 0xffffffff81000000 (relocation range: 0xfff
[   58.054538] drm_kms_helper: panic occurred, switching back to text console
[   58.054556] Rebooting in 30 seconds.._

I have tried everything. Switching distros, using disks and verifying the bootable USB (It works fine on other PCs).

The motherboard is a MSI Z97 MPOWER and the CPU is an i7 4790K.

How can I copy a file from one partition to another? https://askubuntu.com/questions/222632/how-can-i-copy-a-file-from-one-partition-to-another

I started with Linux a year ago. Few weeks ago it was my idea to install the EFISTUB bootloader.

I used an Live CD to freshly install 12.10, and studied the articles of http://www.rodsbooks.com/ inside out.

The problem I am facing is that few files need to be copied from sda2 (Ext) to sda1 (fat32). I can not find a way to do it?

How to only install updates from a specific repository? https://askubuntu.com/questions/27362/how-to-only-install-updates-from-a-specific-repository

How do I limit the updates that are installed to those from a specific set of repositories? Is this at all possible?

Show total disk space needed for installation including Dependency Package sizes? https://askubuntu.com/questions/20178/show-total-disk-space-needed-for-installation-including-dependency-package-sizes

Before i try to install a program in ubuntu, where can i see how much disk space the package including the needed dependency packages will need. Perhaps a commandline way?