Kernel panic (…) Unable to mount root fs on unknown-block(0,0)
https://askubuntu.com/questions/821602/kernel-panic-unable-to-mount-root-fs-on-unknown-block0-0
I have upgraded from Ubuntu 14.04 to 16.04.01 after that there is a problem with grub2 (I have upgraded by sudo apt-get update and sudo do-release-upgrade -d), I am getting an error message: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0).
I have tried:
sudo update-initramfs -u -k $(uname -r) and sudo update grub2 (I've got an error: Missing /lib/modules/$(uname -r) and could not open directory /lib/modules/$(uname -r)).- Boot repair disk (but it keep saying that "
Please close all your package managers (Software Center, Update...".
Results of lsblk -f /dev/sda:
ubuntu@ubuntu:~$ lsblk -f /dev/sda
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
├─sda1 ext4 VM 9cd6d4cd-4429-4af1-866d-7d1da991a222
└─sda2 ext4 psql 7585d4da-d743-4249-876b-f01b145b9850
ubuntu@ubuntu:~$ lsblk -f /dev/sdb
NAME FSTYPE LABEL UUID MOUNTPOINT
sdb
├─sdb1 ext4 Root c251b9bf-0122-43c7-8d76-328a8373b3d6
├─sdb5 ext4 Var 8d153819-dd3b-4f7f-846b-15c643eb4138
├─sdb6 ext4 Home 64c011da-4087-4445-9b2f-4bae074a97ee
├─sdb7 ext4 Misc 86e596f6-6bbe-46c7-b81e-27548433d288
└─sdb8 swap Swap 115ea621-32f5-4a2e-a0bb-93f33355bd0e [SWAP]
ubuntu@ubuntu:~$ lsblk -f /dev/sdc
NAME FSTYPE LABEL UUID MOUNTPOINT
sdc
└─sdc1 vfat UBUNTU 16_0 0E1C-0580 /cdrom
ubuntu@ubuntu:~$
Boot-Repair Boot Info Summary:
============================= Boot Info Summary: ===============================
=> No boot loader is installed in the MBR of /dev/sda.
=> Grub2 (v1.99) is installed in the MBR of /dev/sdb and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
in partition 112 for .
=> Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdc.
sda1: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
sda2: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
sdb1: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 16.04.1 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab
/boot/extlinux/extlinux.conf
sdb2: __________________________________________________________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sdb5: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
sdb6: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
sdb7: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System:
Boot files:
sdb8: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
sdc1: __________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 6.03
Boot sector info: Syslinux looks at sector 32784 of /dev/sdc1 for its
second stage. The integrity check of Syslinux failed.
No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /syslinux.cfg
/efi/BOOT/grubx64.efi /ldlinux.sys
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
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: dos
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 2,048 929,525,759 929,523,712 83 Linux
/dev/sda2 929,525,760 1,953,523,711 1,023,997,952 83 Linux
Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 698.7 GiB, 750156374016 bytes, 1465149168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 * 2,048 117,186,559 117,184,512 83 Linux
/dev/sdb2 117,188,606 1,465,147,391 1,347,958,786 5 Extended
/dev/sdb5 117,188,608 312,498,175 195,309,568 83 Linux
/dev/sdb6 312,500,224 898,435,071 585,934,848 83 Linux
/dev/sdb7 898,437,120 1,448,763,391 550,326,272 83 Linux
/dev/sdb8 1,448,765,440 1,465,147,391 16,381,952 82 Linux swap / Solaris
Drive: sdc _____________________________________________________________________
Disk /dev/sdc: 15 GiB, 16041099264 bytes, 31330272 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdc1 * 2,048 31,330,271 31,328,224 c W95 FAT32 (LBA)
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 9cd6d4cd-4429-4af1-866d-7d1da991a222 ext4 VM
/dev/sda2 7585d4da-d743-4249-876b-f01b145b9850 ext4 psql
/dev/sdb1 c251b9bf-0122-43c7-8d76-328a8373b3d6 ext4 Root
/dev/sdb5 8d153819-dd3b-4f7f-846b-15c643eb4138 ext4 Var
/dev/sdb6 64c011da-4087-4445-9b2f-4bae074a97ee ext4 Home
/dev/sdb7 86e596f6-6bbe-46c7-b81e-27548433d288 ext4 Misc
/dev/sdb8 115ea621-32f5-4a2e-a0bb-93f33355bd0e swap Swap
/dev/sdc1 4A17-D7A8 vfat UBUNTU 16_0
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdc1 /cdrom vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
=========================== sdb1/boot/grub/grub.cfg: ===========================
--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=pl_PL
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
set timeout=30
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=1
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=1
fi
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
if [ "${1}" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ "${recordfail}" != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
linux /boot/vmlinuz-4.4.0-36-generic root=/dev/sdb1 ro quiet splash $vt_handoff
}
submenu 'Opcje zaawansowane dla systemu Ubuntu' $menuentry_id_option 'gnulinux-advanced-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
menuentry 'Ubuntu, za pomocą systemu Linux 4.4.0-36-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-36-generic-advanced-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 4.4.0-36-generic...'
linux /boot/vmlinuz-4.4.0-36-generic root=/dev/sdb1 ro quiet splash $vt_handoff
}
menuentry 'Ubuntu, with Linux 4.4.0-36-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-36-generic-recovery-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
recordfail
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 4.4.0-36-generic...'
linux /boot/vmlinuz-4.4.0-36-generic root=/dev/sdb1 ro recovery nomodeset
}
menuentry 'Ubuntu, za pomocą systemu Linux 3.13.0-96-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.13.0-96-generic-advanced-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 3.13.0-96-generic...'
linux /boot/vmlinuz-3.13.0-96-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro quiet splash $vt_handoff
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-3.13.0-96-generic
}
menuentry 'Ubuntu, with Linux 3.13.0-96-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.13.0-96-generic-recovery-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
recordfail
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 3.13.0-96-generic...'
linux /boot/vmlinuz-3.13.0-96-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro recovery nomodeset
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-3.13.0-96-generic
}
menuentry 'Ubuntu, za pomocą systemu Linux 3.13.0-77-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.13.0-77-generic-advanced-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 3.13.0-77-generic...'
linux /boot/vmlinuz-3.13.0-77-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro quiet splash $vt_handoff
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-3.13.0-77-generic
}
menuentry 'Ubuntu, with Linux 3.13.0-77-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.13.0-77-generic-recovery-c251b9bf-0122-43c7-8d76-328a8373b3d6' {
recordfail
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 3.13.0-77-generic...'
linux /boot/vmlinuz-3.13.0-77-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro recovery nomodeset
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-3.13.0-77-generic
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/10_linux_proxy ###
menuentry "Ubuntu, za pomocą systemu Linux 4.4.0-36-generic" --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
linux /boot/vmlinuz-4.4.0-36-generic root=/dev/sdb1 ro quiet splash vt.handoff=7
}
menuentry "Ubuntu, with Linux 4.4.0-36-generic (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 4.4.0-36-generic...'
linux /boot/vmlinuz-4.4.0-36-generic root=/dev/sdb1 ro single
}
if [ ${recordfail} != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "$linux_gfx_mode" != "text" ]; then load_video; fi
submenu "Previous Linux versions"{
menuentry "Ubuntu, za pomocą systemu Linux 3.13.0-96-generic" --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
linux /boot/vmlinuz-3.13.0-96-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro quiet splash vt.handoff=7
initrd /boot/initrd.img-3.13.0-96-generic
}
menuentry "Ubuntu, with Linux 3.13.0-96-generic (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 3.13.0-96-generic...'
linux /boot/vmlinuz-3.13.0-96-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro single
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-3.13.0-96-generic
}
menuentry "Ubuntu, za pomocą systemu Linux 3.13.0-77-generic" --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
linux /boot/vmlinuz-3.13.0-77-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro quiet splash vt.handoff=7
initrd /boot/initrd.img-3.13.0-77-generic
}
menuentry "Ubuntu, with Linux 3.13.0-77-generic (recovery mode)" --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
set gfxpayload=$linux_gfx_mode
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
echo 'Wczytywanie systemu Linux 3.13.0-77-generic...'
linux /boot/vmlinuz-3.13.0-77-generic root=UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 ro single
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-3.13.0-77-generic
}
}
### END /etc/grub.d/10_linux_proxy ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry 'Memory test (memtest86+)' {
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
knetbsd /boot/memtest86+.elf
}
menuentry 'Memory test (memtest86+, serial console 115200)' {
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 c251b9bf-0122-43c7-8d76-328a8373b3d6
else
search --no-floppy --fs-uuid --set=root c251b9bf-0122-43c7-8d76-328a8373b3d6
fi
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###
### BEGIN /etc/grub.d/40_custom ###
# 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.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------
=============================== sdb1/etc/fstab: ================================
--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda1 during installation
UUID=c251b9bf-0122-43c7-8d76-328a8373b3d6 / ext4 errors=remount-ro 0 1
# /home was on /dev/sda6 during installation
UUID=64c011da-4087-4445-9b2f-4bae074a97ee /home ext4 defaults 0 2
# /var was on /dev/sda5 during installation
UUID=8d153819-dd3b-4f7f-846b-15c643eb4138 /var ext4 defaults 0 2
UUID=86e596f6-6bbe-46c7-b81e-27548433d288 /media/misc ext4 defaults 0 0
UUID=115ea621-32f5-4a2e-a0bb-93f33355bd0e none swap sw,pri=0 0 0
# psql
UUID=7585d4da-d743-4249-876b-f01b145b9850 /media/psql ext4 defaults 0 0
# VM
UUID=9cd6d4cd-4429-4af1-866d-7d1da991a222 /media/VM ext4 defaults 0 0
--------------------------------------------------------------------------------
====================== sdb1/boot/extlinux/extlinux.conf: =======================
--------------------------------------------------------------------------------
## /boot/extlinux/extlinux.conf
##
## IMPORTANT WARNING
##
## The configuration of this file is generated automatically.
## Do not edit this file manually, use: extlinux-update
default l0
prompt 1
timeout 50
include themes/debian/theme.cfg
--------------------------------------------------------------------------------
=================== sdb1: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
================= sdb1: Location of files loaded by Syslinux: ==================
GiB - GB File Fragment(s)
============== sdb1: Version of COM32(R) files used by Syslinux: ===============
boot/extlinux/chain.c32 : COM32R module (v4.xx)
=========================== sdc1/boot/grub/grub.cfg: ===========================
--------------------------------------------------------------------------------
if loadfont /boot/grub/font.pf2 ; then
set gfxmode=auto
insmod efi_gop
insmod efi_uga
insmod gfxterm
terminal_output gfxterm
fi
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
menuentry "Try Ubuntu without installing" {
set gfxpayload=keep
linux /casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
initrd /casper/initrd.lz
}
menuentry "Install Ubuntu" {
set gfxpayload=keep
linux /casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
initrd /casper/initrd.lz
}
menuentry "OEM install (for manufacturers)" {
set gfxpayload=keep
linux /casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash oem-config/enable=true ---
initrd /casper/initrd.lz
}
menuentry "Check disc for defects" {
set gfxpayload=keep
linux /casper/vmlinuz.efi boot=casper integrity-check quiet splash ---
initrd /casper/initrd.lz
}
--------------------------------------------------------------------------------
============================== sdc1/syslinux.cfg: ==============================
--------------------------------------------------------------------------------
DEFAULT loadconfig
LABEL loadconfig
CONFIG /isolinux/isolinux.cfg
APPEND /isolinux/
--------------------------------------------------------------------------------
=================== sdc1: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
================= sdc1: Location of files loaded by Syslinux: ==================
GiB - GB File Fragment(s)
=============================== StdErr Messages: ===============================
cat: /tmp/BootInfo-AD8woXPN/Tmp_Log: No such file or directory
cat: /tmp/BootInfo-AD8woXPN/Tmp_Log: No such file or directory
cat: /tmp/BootInfo-AD8woXPN/Tmp_Log: No such file or directory
cat: /tmp/BootInfo-AD8woXPN/Tmp_Log: No such file or directory
Like "Julie Pelletier" noticed "/ was on /dev/sda1 during installation" but my root partition appears to be /dev/sdb1".
I am not a pro, and I would be grateful if someone told me how to use "mount" (or initramfs) in order to fix this. Answers in this post didn't help (I'm not even sure if I should use partition on sda or sdb in this line sudo mount /dev/sdax /mnt)
