I was looking to install ubuntu on my Lenovo but unfortunately it has allow Microsoft 3rd party UEFI CA disabled, and to change that option you need to visit BIOS setup, which i am not comfortable tinkering with especially with important data on the drive. My last option is to install it to my older laptop. My old laptop is not compatible with windows 11 according to Microsoft even though it only has slightly older cpu (cpu is soldered). Now i want to disable intel rst but it is a good idea to backup just in case. My lenovo has additional 1tb drive that has enough space just to fit whole drive of my old laptop but i dont have screwdriver to open up my laptops and swap drives. I am not rich enough to purchase a cloud backup service. Anybody knows how to make backup on another pc? There is no need to preserve windows.

P.S.: Please don't edit this question. Just in case you will edit anyway i will copy paste original contents back from notepad. If you want to edit my question please tell me in comments.

I was trying to run Ubuntu from a pen drive, and as part of that, I enrolled a key into my device’s UEFI settings (key database?). I did not install Ubuntu; was just running the disk utility from the drive.

This is a machine I am planning to return. Usually, when I add such a key, I also delete it after the use by using the option to reset the key database in the system. But this particular machine has no such options. Even the manufacturer, Dell, is not sure how to do this. They said not all models have that option.

As far as I understand the purpose of this key is to tell the system that it is secure to boot from this pen drive. Are there any issues, especially security issues, if that key remains in the UEFI settings/Key database while I am returning my device?

The ssd of this device is wiped clean. My research shows that this should no way create any security problems for me. But wanted to see if I am missing anything.

I have just installed Ubuntu 25.10 on an old MacBook Pro 2010.

The laptop keeps freezing.

In addition the Ubuntu apps that are "Flutter" apps have screen flashing.

If I boot up with the grub linux parameter nomodeset the laptop doesn't freeze and the screen flashing in the flutter apps are almost gone.

My video card is "NVIDIA Corporation GT216M (GeForce GT 330M) rev a2"

My question is, do I have any alternatives to setting nomodeset to fix the problems (the freezing being the priority to fix)?

I looked at the NVIDIA drivers site and the last Linux driver for my video card is Driver Version: 340.1080 Release Date:Mon Dec 23, 2019.

Would this install on the much newer Ubuntu 25.10?

I also read somewhere that there are Ubuntu Linux drivers. Would these work with my video card and Ubuntu 25.10?

Regards,

fbagnato

Bodhi Linux installation (32-bit) hangs at this:

... ima: No TPM chip found, activating TPM-bypass!

How can I fix this, please?

I'm facing a problem where I've installed Apache and now when I look into the library it says "Permission denied".

bash: cd /var/www/html : Permission denied

The YouTube tutorial which I'm watching got into the directory when it entered the command. Also I'm not familiar with more complex commands as I'm just starting out on Ubuntu, so please suggest a simpler method.

In order to track down a wifi problem, I want to downgrade the kernel on my system. I am currently running 6.8.0-100-generic, on 24.04.

I executed sudo apt-get install linux-image-6.8.0-86-generic linux-headers-6.8.0-86 and rebooted into the new kernel.

However, after the system cones back up, the primary display is at 1024×768 and the secondary display is not recognized at all. Display settings do not show the second display and offer no other resolution apart from 1024×768 – on 6.8.0-100 (and 6.8.0-88, which is still there from a previous auto upgrade) both work as expected.

What am I missing?

I started teaching online and I really need to use Zoom. I always had problems with it, but after installing the Flatpak version at least my video and audio worked. The version I am now is 6.7.2 (6498), and its on Wayland. I can now screen share my entire screen but the school needs me to share just a window, as this removes the bar/menu from the top, however I need to switch between windows i.e. browser and libre but if I try to select even just two ppts it crashes. If I select one window it's fine.

I tried going to advanced settings and changing the screen share setting from auto to pipewire, but it still crashed. I am on Ubuntu 24.04.3 LTS.

thank you in advance

I have only Nvidia graphics card and, on all my 24.04 computers, Firefox acts really strange: There are sometimes about 10 seconds lag when typing, text get squares, the whole computer freezes (needing hard reset) or Firefox crashes.

Seems to be something with snaps and Nvidia? Have been worsening since last month.

In Ubuntu 24.04 with GNOME Shell 46.0, when I press super the activities overview is displayed. What is the keyboard shortcut to close the currently selected window from this view ?
Alt + F4 does not seem to work for me. There is nothing relevant in the settings .

Thanks!

Well, I have two virtual machines. One with ubuntu 22.04 lts and the other with 24.04 lts. On both, I created a "passenger" user account with the adduser command. Then on the "passenger" I created a sidekiq service in the path /home/passenger/.config/systemd/user/sidekiq.service, here is the code:

[Unit]
Description=Sidekiq
After=network.target
 
[Service]
Type=simple
WorkingDirectory=/home/passenger/sidekiq-rails
ExecStart=/bin/bash -lc 'bundle exec sidekiq -e production >> log/sidekiq.log'
ExecStartPost=/bin/bash -lc "systemctl --user show --property MainPID sidekiq.service | awk 'BEGIN {FS=\"=\"} {print $2}' > tmp/sidekiq.pid"
Restart=on-failure
RestartSec=3
 
[Install]
WantedBy=default.target

--> https://pastebin.com/t7fyH1Qy

Smoothly starts systemctl --user start sidekiq.service. I installed the Monit tool and prepared in the path: /etc/monit/conf.d/sidekiq the following configuration:

check process sidekiq with pidfile /home/passenger/sidekiq-rails/tmp/sidekiq.pid
   start program = "/bin/su - passenger -c 'XDG_RUNTIME_DIR=/run/user/$UID DBUS_SESSION_BUS_ADDRESS=unix:path=${XDG_RUNTIME_DIR}/bus systemctl --user start sidekiq.service'"
   stop program = "/bin/su - passenger -c 'XDG_RUNTIME_DIR=/run/user/$UID DBUS_SESSION_BUS_ADDRESS=unix:path=${XDG_RUNTIME_DIR}/bus systemctl --user stop sidekiq.service'"
   if memory usage > 1024 MB for 2 cycles then alert
   if does not exist then alert

--> https://pastebin.com/dDxxNPkf

On the other hand, the problem starts when I testfully disable sidekiq by simply typing systemctl --user stop sidekiq. Then on Ubuntu 22.04 Monit using the prepared config fires sidekiq, and on Ubuntu 24.04 there is an error

[2025-06-26T09:59:33+0000] error    : 'sidekiq' failed to start (exit status 1) -- '/bin/su - passenger -c XDG_RUNTIME_DIR=/run/user/$UID DBUS_SESSION_BUS_ADDRESS=unix:path=${XDG_RUNTIME_DIR}/bus systemctl --user start sidekiq.service': su: cannot set groups: Operation not permitted

--> https://pastebin.com/qaNZs49C

Of course I have:

ls -l /bin/su

-rwsr-xr-x 1 root root 55680 Dec 5 2024 /bin/su

loginctl enable-linger passenger executed on both machines

I am trying to set up my new HDD, a Seagate Ironwolf Pro, on my home server. The server runs Ubuntu 24.04 LTS. I am having trouble setting up my HDD with that, I mean creating partitions, etc. I tried with gdisk and it seems to work while executing it, but does nothing in the end.

Results of sudo gdisk /dev/sda:

nezran@bespin:~$ sudo gdisk /dev/sda
GPT fdisk (gdisk) version 1.0.10

Partition table scan:
MBR: not present
BSD: not present
APM: not present
GPT: not present

Creating new GPT entries in memory.

Command (? for help): p
Disk /dev/sda: 31251759104 sectors, 14.6 TiB
Model: ST16000NE000-2RW
Sector size (logical/physical): 512/4096 bytes
Disk identifier (GUID): F2078324-1C84-48A8-AFF2-14CC3F94032F
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 31251759070
Partitions will be aligned on 2048-sector boundaries
Total free space is 31251759037 sectors (14.6 TiB)

Number  Start (sector)    End (sector)  Size       Code  Name

Command (? for help): n
Partition number (1-128, default 1):
First sector (34-31251759070, default = 2048) or {+-}size{KMGTP}:
Last sector (2048-31251759070, default = 31251757055) or {+-}size{KMGTP}:
Current type is 8300 (Linux filesystem)
Hex code or GUID (L to show codes, Enter = 8300):
Changed type of partition to 'Linux filesystem'

Command (? for help): p
Disk /dev/sda: 31251759104 sectors, 14.6 TiB
Model: ST16000NE000-2RW
Sector size (logical/physical): 512/4096 bytes
Disk identifier (GUID): F2078324-1C84-48A8-AFF2-14CC3F94032F
Partition table holds up to 128 entries
Main partition table begins at sector 2 and ends at sector 33
First usable sector is 34, last usable sector is 31251759070
Partitions will be aligned on 2048-sector boundaries
Total free space is 4029 sectors (2.0 MiB)

Number  Start (sector)    End (sector)  Size       Code  Name
1            2048     31251757055   14.6 TiB    8300  Linux filesystem

Command (? for help): w

Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!

Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/sda.
The operation has completed successfully.
nezran@bespin:~$

Results of lsblk:

nezran@bespin:/$ lsblk
NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0                          7:0    0     4K  1 loop /snap/bare/5
loop1                          7:1    0  10.7M  1 loop /snap/canonical-livepatch/286
loop2                          7:2    0  73.9M  1 loop /snap/core22/1748
loop3                          7:3    0 139.6M  1 loop /snap/docker/2976
loop4                          7:4    0   258M  1 loop /snap/firefox/5701
loop5                          7:5    0   516M  1 loop /snap/gnome-42-2204/202
loop6                          7:6    0  91.7M  1 loop /snap/gtk-common-themes/1535
loop7                          7:7    0  44.4M  1 loop /snap/snapd/23545
loop8                          7:8    0 210.8M  1 loop /snap/thunderbird/634
sda                            8:0    0  14.6T  0 disk
sdb                            8:16   0 465.8G  0 disk
├─sdb1                         8:17   0     1G  0 part /boot/efi
├─sdb2                         8:18   0     2G  0 part /boot
└─sdb3                         8:19   0 462.7G  0 part
└─ubuntu--vg-ubuntu--lv    252:0    0   100G  0 lvm  /
sdc                            8:32   0 931.5G  0 disk
└─sdc1                         8:33   0 931.5G  0 part
nezran@bespin:/$

I have also tried with cfdisk but same result and with GParted I get the error "unrecognized disk label" every time I want to create a new partition table.

I only have this problem when the HDD is attached to my server. On my Windows device I was able to create partitions and use them. I also ran smartctl check, but all seemed fine.

Does anyone know what else can be done or if maybe the HDD has a problem?

I also tried to create a new label with fdisk but the same thing happens. While executing everything seems fine, but it won't be saved.

Results of fdisk:

Welcome to fdisk (util-linux 2.39.3).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Device does not contain a recognized partition table.
The size of this disk is 14.6 TiB (16000900661248 bytes). DOS partition table format cannot be used
on drives for volumes larger than 2199023255040 bytes for 512-byte sectors. Use GUID partition table
format (GPT).

Created a new DOS (MBR) disklabel with disk identifier 0x273d9d7e.

Command (m for help): m

Help:

DOS (MBR)
a   toggle a bootable flag
b   edit nested BSD disklabel
c   toggle the dos compatibility flag

Generic
d   delete a partition
F   list free unpartitioned space
l   list known partition types
n   add a new partition
p   print the partition table
t   change a partition type
v   verify the partition table
i   print information about a partition

Misc
m   print this menu
u   change display/entry units
x   extra functionality (experts only)

Script
I   load disk layout from sfdisk script file
O   dump disk layout to sfdisk script file

Save & Exit
w   write table to disk and exit
q   quit without saving changes

Create a new label
g   create a new empty GPT partition table
G   create a new empty SGI (IRIX) partition table
o   create a new empty MBR (DOS) partition table
s   create a new empty Sun partition table

Command (m for help): g
Created a new GPT disklabel (GUID: B4667D88-B9C9-46B3-8609-9149A1C4A294).

Command (m for help): n
Partition number (1-128, default 1):
First sector (2048-31251759070, default 2048):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-31251759070, default 31251757055):

Created a new partition 1 of type 'Linux filesystem' and of size 14.6 TiB.

Command (m for help): p
Disk /dev/sda: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors
Disk model: ST16000NE000-2RW
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: B4667D88-B9C9-46B3-8609-9149A1C4A294

Device      Start         End     Sectors  Size Type
/dev/sda1    2048 31251757055 31251755008 14.6T Linux filesystem

Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

nezran@bespin:~$ lsblk
NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0                          7:0    0     4K  1 loop /snap/bare/5
loop1                          7:1    0  10.7M  1 loop /snap/canonical-livepatch/286
loop2                          7:2    0  73.9M  1 loop /snap/core22/1748
loop3                          7:3    0 139.6M  1 loop /snap/docker/2976
loop4                          7:4    0   258M  1 loop /snap/firefox/5701
loop5                          7:5    0   516M  1 loop /snap/gnome-42-2204/202
loop6                          7:6    0  91.7M  1 loop /snap/gtk-common-themes/1535
loop7                          7:7    0  44.4M  1 loop /snap/snapd/23545
loop8                          7:8    0 210.8M  1 loop /snap/thunderbird/634
sda                            8:0    0  14.6T  0 disk
sdb                            8:16   0 465.8G  0 disk
├─sdb1                         8:17   0     1G  0 part /boot/efi
├─sdb2                         8:18   0     2G  0 part /boot

When I connect the disk Ubuntu cannot mount it (1TB NTFS external USB HDD). It worked a month ago and works with no problem on Windows 10. Tested with 3 Ubuntu computers, and one with dual boot. Ubuntu says:

Wrong superblock, no pager

or something or that you need a helper program.

I have another 500GB NTFS drive and it works fine, but that drive was formatted as NTFS in Ubuntu.

How can I convert an avif image file to a png file?

$ convert macadamiaCracker1.{avif,png}
convert: Decoder plugin generated an error: Unspecified (7.0) `macadamiaCracker1.avif' @ error/heic.c/IsHEIFSuccess/135.
convert: no images defined `macadamiaCracker1.png' @ error/convert.c/ConvertImageCommand/3325.

where

$ file macadamiaCracker1.avif
macadamiaCracker1.avif: ISO Media, AVIF Image

Was convert updated to support avif after ImageMagick 7.1.0-45?

$ convert --version
Version: ImageMagick 7.1.0-45 Q16-HDRI x86_64 d80f6a7cd:20220731 https://imagemagick.org
Copyright: (C) 1999 ImageMagick Studio LLC
License: https://imagemagick.org/script/license.php
Features: Cipher DPC HDRI OpenMP(4.5) 
Delegates (built-in): bzlib cairo djvu fontconfig freetype heic jng jp2 jpeg jxl lcms lqr lzma openexr png raw rsvg tiff webp x xml zlib
Compiler: gcc (11.3)

My system has 2 GPUs: Intel integrated, and AMD RX580. Both of these are found by vulkan-info --summary plus an additional cpu implementation.

Devices:
========
GPU0:
    apiVersion         = 1.3.238
    driverVersion      = 23.0.2
    vendorID           = 0x8086
    deviceID           = 0x4680
    deviceType         = PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU
    deviceName         = Intel(R) UHD Graphics 770 (ADL-S GT1)
    driverID           = DRIVER_ID_INTEL_OPEN_SOURCE_MESA
    driverName         = Intel open-source Mesa driver
    driverInfo         = Mesa 23.0.2
    conformanceVersion = 1.3.0.0
    deviceUUID         = fd8cf190-0bdb-4dd5-b941-a7eb5b383e9c
    driverUUID         = 9bb8225e-db2e-6a20-282d-526794955fa9
GPU1:
    apiVersion         = 1.3.238
    driverVersion      = 23.0.2
    vendorID           = 0x1002
    deviceID           = 0x67df
    deviceType         = PHYSICAL_DEVICE_TYPE_DISCRETE_GPU
    deviceName         = AMD Radeon RX 580 Series (RADV POLARIS10)
    driverID           = DRIVER_ID_MESA_RADV
    driverName         = radv
    driverInfo         = Mesa 23.0.2
    conformanceVersion = 1.2.7.1
    deviceUUID         = 00000000-0100-0000-0000-000000000000
    driverUUID         = 414d442d-4d45-5341-2d44-525600000000
GPU2:
    apiVersion         = 1.3.238
    driverVersion      = 0.0.1
    vendorID           = 0x10005
    deviceID           = 0x0000
    deviceType         = PHYSICAL_DEVICE_TYPE_CPU
    deviceName         = llvmpipe (LLVM 15.0.7, 256 bits)
    driverID           = DRIVER_ID_MESA_LLVMPIPE
    driverName         = llvmpipe
    driverInfo         = Mesa 23.0.2 (LLVM 15.0.7)
    conformanceVersion = 1.3.1.1
    deviceUUID         = 6d657361-3233-2e30-2e32-000000000000
    driverUUID         = 6c6c766d-7069-7065-5555-494400000000

Yet, when I try to use chromium with vulkan using $ chromium --enable-features=Vulkan,webgpu, I get:

Warning: vkCreateInstance: Found no drivers!
Error: vkCreateInstance failed with VK_ERROR_INCOMPATIBLE_DRIVER
    at CheckVkSuccessImpl (../../third_party/dawn/src/dawn/native/vulkan/VulkanError.cpp:88)
    at CreateVkInstance (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:416)
    at Initialize (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:302)
    at Create (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:232)
    at operator() (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:492)

What I tried:

• Using --gpu-active-vendor-id=0x1001 on the command line to force AMD
• Using --gpu-active-vendor-id=0x8086 on the command line to force Intel
• X11 vs Wayland
• google-chrome (r115) versus ubuntu chromium snap (r114)

Why do vulkaninfo and chromium contradict each other on the existance of vulkan drivers?

$ inxi -G
Graphics:
  Device-1: Intel AlderLake-S GT1 driver: i915 v: kernel
  Device-2: AMD Ellesmere [Radeon RX 470/480/570/570X/580/580X/590]
    driver: amdgpu v: kernel
  Display: wayland server: X.Org v: 1.22.1.8 with: Xwayland v: 22.1.8
    compositor: gnome-shell v: 44.2 driver: X: loaded: amdgpu,modesetting
    unloaded: fbdev,radeon,vesa dri: iris gpu: i915 resolution: 3840x2160~60Hz
  API: OpenGL v: 4.6 Mesa 23.0.2 renderer: Mesa Intel UHD Graphics 770
    (ADL-S GT1)

I've made a new install of 22.04.2 on a different partition. I have all programs left on the old partition with Ubuntu 20.04 and want to import my profile from my old Firefox on Ubuntu 20.04.

Tried to copy home/user/.mozilla/firefox to home/user/snap/firefox, but it doesn't work.

Is there any solution?

Ubuntu 20.04 LTS

There has been a very strange error with my samba shares after an update yesterday.

Firstly, I cannot sambashare a folder /home/Downloads/TDL. Nautilus gives an error (fig. 1)

Secondly, I cannot share a file in my home directory any more. I get this error when I try to share from nautilus:

Why can't I share folders with Nautilus share? Nautilus says:

'*'net usershare' returned error 255: [2023/04/03 15:42:47,  0] ../../lib/util/debug.c:1100(reopen_one_log)
  reopen_one_log: Unable to open new log file 'TDL/log.net': No such file or directory
net usershare add: share name /home/a/downloads/tdl contains invalid characters (any of %<>*?|/\+=;:",)*'

I can't find any invalid characters in shared folders.

When I look for a shared folder with: 'net usershare info --long' I get no shared folders even if I have shared "media" read only in smb.conf by adding:

[Media-guest]
        path = /media
;       read only = yes
        force user = 
        guest ok = yes

in the end of smb.conf

This works, I can access my USB drives as read-only, but it does not show up with net usershare and I can't make any share with Nautilus.

I have 3 1TB HDDs, that I'm trying to format and mount in linux. I can`t create partitions delete or format that drives, but they are completely clean, i already deleted windows (I disabled windows fast boot). In windows disks work perfectly.

In GParted (GUI) I see:

partition - unallocated
file system - unallocated
warning - unrecognised disk label

When im trying to mount drive, i get this:

mount: wrong fs type, bad option, bad superblock on /dev/sda, missing codepage or helper program, or other error

Here are some screenshots from fsdisk and lsblk (Talking about drives sda, sdb, sdd) :

When I try to create partitions using the fdisk /dev/sda command, it says that the partitions have been created, but in fact they are not created

I use Kubuntu 22.04.1 LTS

Here are some screenshots from GParted:

When I try to create a partition table, it just loads and nothing happens, you can see it in one of the screenshots

UPD 2.0 : After using mkusb i still can`t use partition tools, but this time I tried to format drive also in KDE partition manager, and I received following errors:

Data from the drives does not matter, just help me to make able to use them.

I have been able to pair my iPhone SE (iOS 14.4.2) with my Ubuntu Desktop (20.04) using the default bluetooth settings application and I can play music and this is great but controlling the volume from iOS is not working. When I bring the volume all the way down to silent/mute the Ubuntu Desktop does mute its output but all volume levels above zero result with 100% volume.

I have a HP computer and installed Ubuntu on it. I followed all the installation procedures as shown on the Ubuntu website. I installed it in order to dual boot into Windows 10. Now, my computer boots directly to Ubuntu. It does not even show the grub menu. I can get to see the grub menu only if I restart the computer while holding the "Windows" and shift key down. When I see the grub menu by using the shift key method, I see the following message when I choose Windows:

error:can't find the command 'drivemap'. error: invalid EFI file path Press any key to continue...

Due to some confusion in the installation instructions, I might have made a small error during the installation of Ubuntu and might have mistakenly created an extra EFI partition.

a) I looking to fix this dual boot issue. b) I am also fine if you can tell me how to delete Ubuntu and go back to using windows. ( I dont have any sort of windows installation CD or USB.

I did this for now:

sudo gedit /etc/grub.d/40_custom

Then added the following in 40_custom...

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry "WINDOWS10 (on /dev/sda5)" --class windows --class os {
   insmod part_msdos
   insmod ntfs
   set root='(/dev/sda,msdos1)'
   search --no-floppy --fs-uuid --set=root defca89a-1c4c-4e17-a2wf-  fdp6c15bd69q
   drivemap -s (hd0) ${root}
   chainloader +1
}

Results of lsblk:

I am still trying to install Ubuntu 20.04 on my late-2011 17" macbook pro. I need to install Ubuntu alongside my macOS High Sierra install that currently is the only other (meaningful) occupant of the 2TB SSD.

The issue (for me) is that the Ubuntu 20.04 installer incorrectly concludes:

This computer currently has no detected operating systems.

I currently have rEFInd installed on this machine - which I did in anticipation of the Ubuntu install.

Why does the Ubuntu 20.04 installer fail to recognize the huge 750GB APFS partition as an installed OS? Is there anything I can reasonably do to "help" the installer see this, and install Ubuntu in the proper location?

I wonder if anyone can please help me.

I have installed ubuntu 20.04. then installed the lxqt desktop for it.

I want to have two langues available for typing. And I want to switch between them by using 'alt space' or something similar.

I have not been able to do this. Can anyone please help?

I have been to keyboard layout and added second language. And chose alt space to change layout.

But it doesn't work.

Also, additional problem. I change keyboard model under keyboard and mouse settings. 'apply' then 'close'. Restart computer and the keyboard model has been lost and returns to basic 105 key. Could there be a bug in the keyboard layout settings?

Can anyone please help. Thanks

I've got an mkusb live USB (Ubuntu 18.04 with persistence) that boots fine on some of my computers. On one laptop I get the following error:

error: disk `hd0,4' not found.
error: you need to load the kernel first.

What do I need to do to, "load the kernel first"?

EDIT: An SD card occupying an SD slot was causing this issue. Removing the SD card allows mkusb to boot properly, and eliminates the error. Once booted I reinsert the SD card into the SD slot if I need to use it.

my@my-HP-15-Notebook-PC:~$ cd iitk/
my@my-HP-15-Notebook-PC:~/iitk$ netconvert --osm-files iitk.osm -o iitk.net.xml
Warning: Environment variable SUMO_HOME is not set, using built in type maps.
Warning: Environment variable SUMO_HOME is not set, schema resolution will use slow website lookups.
Error: unable to connect socket for URL 'http://sumo.dlr.de/xsd/types_file.xsd'
 In file 'built in type map'
 At line/column 1/0.

  The types could not be loaded from 'built in type map'.
Quitting (on error).

I have created an iso using Pinguy Builder and used both Startup Disk Creator and Etcher to create bootable usb external hard drive. No errors, boots ok, but cannot log in. My original Ubuntu installation that I used to create the iso displays my name, ie John Smith and just asks for password, it shows also as Guest Session. My user directory is john and in terminal mode it shows the prompt as john@john-HP-Notebook. If i type in whoami it tells me i am john.

I have tried all combinations using john, john@john-HP-Notebook, guest and am aware linux is case sensitive, I have also tried defaults like Ubuntu/blank, ubuntu/blank, ubuntu/ubuntu, Ubuntu/ubuntu - I can log in easily on the system from which the iso was created but cannot log in on the system created from the iso - lost for ideas - please help - thanks guys

On further investigation it seems with Pinguy builder if you use dist option there is no user or pass required when you boot from usb / cd but if you use backup you have tom enter the user/pass of the system from which the iso was created - however it does not actually match any combinations so you cannot log in to your backed up system - furthermore it then remembers these settings so after doing a backup dist systems also require user / pass of original system which seems to be a bug - if you create a new distribution you should not have to give your user / pass away to all users - but does not really matter as you cannot log in even with your user / pass so if anyone knows what pinguy builder backup uses as user pass that will be great so I can actually use my backed up system......

I just installed Ubuntu on a new machine and everything seemed to be going fine. I and a coworker were having some issues with a few things and have managed to lock-out a local admin (sudo?) account after unjoining an AD domain using realm while troubleshooting some McAfee issues were were having. I'm 99.9% certain that the password has not changed for the user. I have followed ALL the steps found here for resetting the password as root in recovery. When I try to run

sudo passwd USERNAME

I get the error:

root@hostname:~# sudo passwd USERNAME passwd:Permission denied passwd:password unchanged root@hostname:~#

When I try to do the steps for the "The Drastic Measures", I notice that the shadow file does not show what would usually indicate an encrypted password for the user. Instead it looks like:

username:!:14920:0:99999:7:::

I have removed the exclamation point and still have issues. Even when I run

passwd

as root through recovery, I get a permissions denied error. As it stands right now, I can only log into the machine as root through recovery. I'm at a complete loss at this point and trying to avoid breaking down the machine and starting from scratch. Any help you guys can provide would be greatly appreciated.

Ubuntu 16.04 (VM)
Added one virtual NIC ens160, working fine.
Added a second physical NIC ens192 creating the error message.

systemctl status networking.service
● networking.service - Raise network interfaces
   Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
  Drop-In: /run/systemd/generator/networking.service.d
           └─50-insserv.conf-$network.conf
   Active: failed (Result: exit-code) since Wed 2016-07-06 11:19:04 EDT; 8s ago
     Docs: man:interfaces(5)
  Process: 14290 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
  Process: 14284 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=0/SUCCESS)
 Main PID: 14290 (code=exited, status=1/FAILURE)

Jul 06 11:19:03 gbsnort systemd[1]: Starting Raise network interfaces...
Jul 06 11:19:04 gbsnort ifup[14290]: RTNETLINK answers: File exists
Jul 06 11:19:04 gbsnort ifup[14290]: Failed to bring up ens192.
Jul 06 11:19:04 gbsnort systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
Jul 06 11:19:04 gbsnort systemd[1]: Failed to start Raise network interfaces.
Jul 06 11:19:04 gbsnort systemd[1]: networking.service: Unit entered failed state.
Jul 06 11:19:04 gbsnort systemd[1]: networking.service: Failed with result 'exit-code'.


  6 # The loopback network interface
  7 auto lo
  8 iface lo inet loopback
  9 
 10 # The primary network interface
 11 auto ens160
 12 iface ens160 inet static
 13         address 192.168.2.17
 14         netmask 255.255.255.0
 15         network 192.168.2.0
 16         broadcast 192.168.2.255
 17         gateway 192.168.2.40
 18         # dns-* options are implemented by the resolvconf package, if installed
 19         dns-nameservers 192.168.2.13
 20         dns-search mydomain.com
 21 
 22 # The monitoring interface
 23 auto ens192
 24 iface ens192 inet static
 25         address 192.168.2.12
 26         netmask 255.255.255.0
 27 #       network 192.168.2.0
 28 #       broadcast 192.168.2.255
 29         gateway 192.168.2.40
 30 #       dns-nameservers 192.168.2.13
 31 #       dns-search mydomain.com
 32 
 33 post-up ethtool -K ens192 gro off
 34 post-up ethtool -K ens192 lro off

I have an HP Ultrabook 4 that currently contains some version of Windows (I think Windows 8), and I'm trying to completely replace it with Ubuntu 16.04 LTS. I have a bootable USB stick that runs fine on the machine. When I try to install from the USB stick, I eventually get to the Installation type screen, which displays an empty partition list; the New Partition Table button is grayed out. (Note that this is the first Installation type screen I see. I never get the screen offering me the option to erase the disk and install.) If I press "+", either just crashes silently or I get a message about an internal error involving Ubiquity. Do you have any suggestions?

By the way, related or not, on the initial screen, when selecting a language, I don't get the graphics on the right side containing large buttons asking about live vs install (the buttons that are shown on the Ubuntu pages relating to installation) - that part of the window is just blank.

Results of sudo parted -l:

ubuntu@ubuntu:~$ sudo parted -l
Warning: Not all of the space available to /dev/sda appears to be used, you can 
fix the GPT to use all of the space (an extra 6192 blocks) or continue with the 
current setting?
Fix/Ignore? Ignore
Model: ATA Hitachi HTS54505 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name                          Flags
 1      1049kB  420MB   419MB   ntfs         Basic data partition          hidden, diag
 2      420MB   693MB   273MB   fat32        EFI system partition          boot, esp
 3      693MB   827MB   134MB                Microsoft reserved partition  msftres
 4      827MB   472GB   472GB   ntfs         Basic data partition          msftdata
 5      472GB   500GB   27.7GB  ntfs         Basic data partition          hidden, msftdata

Warning: Not all of the space available to /dev/sdb appears to be used, you can fix the GPT to use all of the space (an extra 54144688 blocks)
or continue with the current setting?
Fix/Ignore? Ignore
Model: ATA SAMSUNG MZMPC032 (scsi)
Disk /dev/sdb: 32.0GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system  Name                  Flags
 1      1049kB  4294MB  4293MB               Basic data partition  irst

Model: FLASH Drive 3S_USB20 (scsi)
Disk /dev/sdc: 2002MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      32.3kB  2001MB  2001MB  primary  fat32        boot, lba

ubuntu@ubuntu:~$

Results of sudo lsblk -l:

ubuntu@ubuntu:~$ sudo lsblk -l
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 465.8G  0 disk 
sda1     8:1    0   400M  0 part 
sda2     8:2    0   260M  0 part 
sda3     8:3    0   128M  0 part 
sda4     8:4    0 439.2G  0 part 
sda5     8:5    0  25.9G  0 part 
sdb      8:16   0  29.8G  0 disk 
sdb1     8:17   0     4G  0 part 
sdc      8:32   1   1.9G  0 disk 
sdc1     8:33   1   1.9G  0 part /cdrom
loop0    7:0    0   1.3G  1 loop /rofs
ubuntu@ubuntu:~$

Explanation: I work for IBM and trying to prototype netboot (pxe) for ubuntu. The goal is to have a maas deployment server deploy out to 4 VMs managed under ubuntu 14.0.4 to test out juju bundle #39 (openstack base). Since my team does not have 4 physical servers we are attempting this using VMs. Note this is ppc64el environment.

Problem With a installed mini.iso for netboot (pxe) in a VM we encounter "Guest has not initialized the display yet". VM does not boot, goes to paused and maas cannot be used for this VM.

Questions

1. The netboot mini.iso from wiki.ubuntu.com/ppc64el.

   Can it be used to establish a VM to boot from pxe?

   Are these only for installation on bare metal?

2. I found this at https://lists.gnu.org/archive/html/qemu-discuss/2015-03/msg00027.html that says "kernel that won't work on this board model" or "kernel has no graphics support". This is leading me to believe that using the netboot/pxe mini.iso cannot be done in VM and needs to be bare metal.

   Is putting the netboot iso into VM possible?
   Is it not possible because the VM emulation graphics card is not supported for the mini.iso?

QEMU window opens up, but I am getting this error "Guest has not initialized the display yet" I had enabled -sdl option while configuring qemu, but I am still getting that error.

This isn't an error. It is just QEMU telling you that the guest OS has not yet done what it needs to do to turn on the emulated graphics card and display output.

In this case the likely reason for this is that you've tried to run a kernel that won't work on this board model, and so it has crashed before it got anywhere. You can also see this message if the kernel has no graphics support built in and is just doing output to serial console.

3. If we can use netboot mini.iso for VM what are we doing wrong in the xml document defintion for the graphics?

vm6.xml or parts of it that are relevant

/usr/bin/qemu-system-ppc64le

<controller type='usb' index='0'>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='virtio-serial' index='0'>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</controller>
<interface type='bridge'>
  <mac address='00:1a:64:30:12:11'/>
  <source bridge='br3'/>
  <model type='rtl8139'/>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
  <target port='0'/>
  <address type='spapr-vio' reg='0x30000000'/>
</serial>
<console type='pty'>
  <target type='serial' port='0'/>
  <address type='spapr-vio' reg='0x30000000'/>
</console>
<input type='tablet' bus='usb'/>
<input type='keyboard' bus='usb'/>
<input type='mouse' bus='usb'/>
<graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>

Envirionment Info

1. Server: ubuntu 14.04 trusty - ppc64el

2. /wiki.ubuntu.com/ppc64el netboot mini.iso being used

3. juju: //jujucharms.com/u/james-page/openstack-base/bundle/39/

4. Openstack with ceph storage, requires 4 machines

5. using maas to boot VMs: askubuntu.com/questions/292061/how-to-configure-maas-to-be-able-to-boot-virtual-machines

Outcome Added Sep 22, 2015

==========================

Explanation of what was done to make things work and example of xml (XML Code secion). The xml helps to start making ppc64le work to get to running state (not paused). Once we got the VM to running state we still had to modify in virt-manager to setup scsi disk for deployed vm. The XML code below is the version that was finally modified in virt-manager with 8G scsi disk.

Notes

1. Need to run ppc64_cpu --smt=off

2. xml: Needed to specify arch ppc64

3. xml: Used qemu-system-ppc64 qemu

   Added on 10/07/2014. I forgot to mention that the xml has to be changed to use VNC console. See the supplied XML. Need to use VNC. Have to have the console tags, which I believe should be there. Also if you setup XML you may run into issue with bus slot definition where it says already used slots. If this is the case you may have to adjust bus/slot numbers as shown in example below.

   <console type='pty'>
     <target type='serial' port='0'/>
     <address type='spapr-vio' reg='0x30000000'/>
   </console>
   
   <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0' keymap='en-us'>
     <listen type='address' address='0.0.0.0'/>
   </graphics>
   

4. Note that this gets vm into running state.

5. Now the original xml contained mini.iso . However once running in maas the vm commissioned to ready state. Then when deployed (start button) hit issue where VM started up but failed deployment. From virt-manager removed the mini-iso and created a scsi disk of 8G. The scsi disk is needed my maas to put the deployed OS (in our case ubuntu 14.04 trusty).

   Note on virt-manager: Using virt-manager makes things real easy. Our setup used private network and we normally use vnc to connect to servers. The server that has all the VMs on it (the VM server) we connect to via vnc. Now from there we tried to connect via vnc to the maas deployment server (on a ubuntu 15.04 level). We could not make vnc work on the 15.04 server. So we used ssh -X xll forwarding. Not the solution for product level but if you are testing this environment out this works in a pinch.

6. Note that to access the ubuntu properly you need to setup the ssh keys as specified by ubuntu documentation.

   See: /maas.ubuntu.com/docs/nodes.html

   Note we used root for our testing so if you do this for testing then maas userid does not have to be setup and just ssh-keygen (this is done on maas deployment server).

   The target server that has the VMs (VM server in the doc) needs the public key so ssh-copy-id -i ~/.ssh/id_rsa ubuntu@x.x.x.x has to be done and you have to use ubuntu userid. The ubuntu userid is the default userid of deployed VMs.

   Once the above is done you can access the deployed VM from the VM server using something like this ssh ubuntu@x.x.x.x (x.x.x.x is the ip address of created ubuntu VM)

7. Once this was fixed mass deployed to the server ubuntu 14.04.
   If you run virt-manager you can see the sequence of processing during deploy.

8. Now in the test case we ran observed in virt-manager that the boot sequence was still off network so changed that to disk. Stopped VM, restarted VM and came up with ubuntu 14.04.

9. Connect to the newly created VM using ssh ubuntu@x.x.x.x (x.x.x.x is the ipaddress of created ubuntu VM). Note you can obtain the newly created ipaddress from the edit node page, go to bottom and select discovered information. ipaddress is listed in that area a ways down, probably better to copy to a notepad, editor and then search for address start. We used private network so just searched for 192.

   Use uname -a and lscpu to check if OS is correct. Should show architecture as ppc64le:

   root@ubuntur2n2:~# uname -a
   Linux ubuntur2n2 3.19.0-25-generic #26-Ubuntu SMP Fri Jul 24 21:18:29 UTC 2015 ppc64le ppc64le ppc64le GNU/Linux
   root@ubuntur2n2:~# lscpu
   Architecture:          ppc64le
   Byte Order:            Little Endian
   CPU(s):                192
   On-line CPU(s) list:   0,8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,168,176,184
   Off-line CPU(s) list:  1-7,9-15,17-23,25-31,33-39,41-47,49-55,57-63,65-71,73-79,81-87,89-95,97-103,105-111,113-119,121   
    -127,129-135,137-143,145-151,153-159,161-167,169-175,177-183,185-191
   Thread(s) per core:    1
   Core(s) per socket:    6
   Socket(s):             4
   NUMA node(s):          4
   

XML Code

<domain type='kvm'>
  <name>vm5</name>
  <uuid>1e964a47-4a69-4b59-a5b4-637a1234f47d</uuid>
  <description>vm5 for PoC</description>
  <memory unit='KiB'>4194304</memory>
  <currentMemory unit='KiB'>4194304</currentMemory>
  <vcpu placement='static'>2</vcpu>
  <os>
    <type arch='ppc64' machine='pseries-2.2'>hvm</type>
    <bootmenu enable='yes'/>
  </os>
  <features>
    <acpi/>
        <apic/>
<pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-ppc64</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/var/lib/libvirt/images/vm5-1.qcow2'/>
     <target dev='sda' bus='scsi'/>
      <boot order='1'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
 <controller type='pci' index='0' model='pci-root'/>
   <controller type='ide' index='0'>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='scsi' index='0'>
      <address type='spapr-vio' reg='0x2000'/>
    </controller>
    <interface type='bridge'>
      <mac address='00:1a:64:14:53:14'/>
      <source bridge='br3'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </console>
    <input type='tablet' bus='usb'/>
    <input type='keyboard' bus='usb'/>
    <input type='mouse' bus='usb'/>
    <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0' keymap='en-us'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='vga' vram='16384' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </memballoon>
  </devices>
</domain>

Problem I have is that when I run through the install procedure I do not get the “Install Alongside OS X” option. I have an IMac 21.5” mid 2011 running OS X Yosemite 10.10.2 Version of Ubuntu I wish to to install for dual boot is 14.04.01.

Followed this procedure described on howtogeek:

A bit of info around the procedure.

1. I have installed reFInd
2. Created bootable USB stick using this procedure.

create-a-usb-stick-on-mac-osx

3. Reduced partition size of existing mac hd using disk utility. Left the 100Gb space as “Free Space” - note I have also repeated the procedure twice adding a partition and formatting as FAT and then changing Free Space

4. Booting MAC brings me to reFInd fine but I see 4 icons, not the 2 icons I was expecting.

5. Select UBUNTU icon and continue

6. The once install starts I select "Install UBUNTU". The next options confirm enough disk space is available and a connection to the internet exists.

7. Then I have the problem. No "Install Alongside OSX" option.

8. So I have looked at the "Something Else" option. I see the 100Gb of FREE SPACE is listed so I wonder what to do next.

So you can see I am stuck. Anyone know a fix?

I have a Lenovo z580 laptop and it has 2 video cards

• Intel HD Graphics 2000 integrated in Intel Pentium Dual Core CPU B970
  
• nVidia Geforce GT 630M.
  

I use Bumblebee but it doesn't work for Virtual Box ghost OS or for Wine. How I can remove/eliminate the integrated video card and use only nVidia Geforce GT 630M?