: Kernel panic - not syncing: VFS: Unable to nount root fs
Ming Kbot
ming.kbot at gmail.com
Wed Aug 5 13:30:05 UTC 2009
# menu.lst - See: grub(8), info grub, update-grub(8)
# grub-install(8), grub-floppy(8),
# grub-md5-crypt, /usr/share/doc/grub
# and /usr/share/doc/grub-doc/.
## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default 0
## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default
entry
# (normally the first entry defined).
timeout 3
## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
hiddenmenu
# Pretty colours
#color cyan/blue white/blue
## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line) and entries protected by the
# command 'lock'
# e.g. password topsecret
# password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret
#
# examples
#
# title Windows 95/98/NT/2000
# root (hd0,0)
# makeactive
# chainloader +1
#
# title Linux
# root (hd0,1)
# kernel /vmlinuz root=/dev/hda2 ro
#
#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST
### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below
## DO NOT UNCOMMENT THEM, Just edit them to your needs
## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
## kopt_2_6_8=root=/dev/hdc1 ro
## kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=a750f192-d66d-468c-a780-d652731e7fd3 ro
## default grub root device
## e.g. groot=(hd0,0)
# groot=a750f192-d66d-468c-a780-d652731e7fd3
## should update-grub create alternative automagic boot options
## e.g. alternative=true
## alternative=false
# alternative=true
## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
## lockalternative=false
# lockalternative=false
## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash
## should update-grub lock old automagic boot options
## e.g. lockold=false
## lockold=true
# lockold=false
## Xen hypervisor options to use with the default Xen boot option
# xenhopt=
## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0
## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
## altoptions=(recovery) single
# altoptions=(recovery mode) single
## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
## howmany=7
# howmany=all
## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
## indomU=true
## indomU=false
# indomU=detect
## should update-grub create memtest86 boot option
## e.g. memtest86=true
## memtest86=false
# memtest86=true
## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false
## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false
## ## End Default Options ##
title Ubuntu 9.04, kernel 2.6.28-14-generic
uuid a750f192-d66d-468c-a780-d652731e7fd3
kernel /boot/vmlinuz-2.6.28-14-generic root=UUID=a750f192-d66d-468c-
a780-
d652731e7fd3 ro quiet splash
initrd /boot/initrd.img-2.6.28-14-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-14-generic (recovery mode)
uuid a750f192-d66d-468c-a780-d652731e7fd3
kernel /boot/vmlinuz-2.6.28-14-generic root=UUID=a750f192-d66d-468c-
a780-
d652731e7fd3 ro single
initrd /boot/initrd.img-2.6.28-14-generic
title Ubuntu 9.04, kernel 2.6.28-13-generic
uuid a750f192-d66d-468c-a780-d652731e7fd3
kernel /boot/vmlinuz-2.6.28-13-generic root=UUID=a750f192-d66d-468c-
a780-
d652731e7fd3 ro quiet splash
initrd /boot/initrd.img-2.6.28-13-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-13-generic (recovery mode)
uuid a750f192-d66d-468c-a780-d652731e7fd3
kernel /boot/vmlinuz-2.6.28-13-generic root=UUID=a750f192-d66d-468c-
a780-
d652731e7fd3 ro single
initrd /boot/initrd.img-2.6.28-13-generic
title Ubuntu 9.04, kernel 2.6.28-11-generic
uuid a750f192-d66d-468c-a780-d652731e7fd3
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=a750f192-d66d-468c-
a780-
d652731e7fd3 ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-11-generic (recovery mode)
uuid a750f192-d66d-468c-a780-d652731e7fd3
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=a750f192-d66d-468c-
a780-
d652731e7fd3 ro single
initrd /boot/initrd.img-2.6.28-11-generic
title Ubuntu 9.04, memtest86+
uuid a750f192-d66d-468c-a780-d652731e7fd3
kernel /boot/memtest86+.bin
quiet
### END DEBIAN AUTOMAGIC KERNELS LIST
On Monday 03 August 2009 11:34:01 am Wagner Sales wrote:
> Hi Ming,
>
> Well, seems to be a misconfiguration on grub. Please, post your
> /boot/grub/menu.lst here. I think will be easy to solve.
>
> Regards,
>
> Wagner
>
> 2009/8/3 Ming Kbot <ming.kbot at gmail.com>:
> > Help !
> >
> > I'm new to linux ..
> >
> > i cant boot Kubuntu. ( normally )
> >
> > when i go into grub menu selecting
> > Ubuntu 9.04, kernel 2.6.28-14-generic gives a error and stops.
> >
> > The error reads: Kernel panic - not syncing: VFS: Unable to nount root fs
> > on unknown-block(0,0)
> >
> > when I select Ubuntu 9.04, kernel 2.6.28-13-generic boots normally
> >
> > I've run fsck and the disk checker on the Ubuntu DVD they found 1 bad
> > block and fixed it.
> >
> > can i run 13 and force it to update to 14 again ?
> >
> > please help !
> >
> > --
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