After an automatic kernel update through update-manager I cannot boot up without intervention any more. Latest version which GRUB boots automatically is 3.2.0-64-generic-pae which fails during startup at a blank screen.
[ 2.140928] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block (0,0)
[ 2.141024] Pid: 1, comm; swapper/0 Not tainted 3.2.0-64-generic-pae #97 Ubuntu
followed by a call trace, found at the end of the bootup in recovery mode.
It is not a disk error as I bootup properly with both 63 and 29.
May be the same as I want to recover my data on Ubuntu but maybe not. Others get the same message for unrelated (?) problems.
Another post has a reply which suggests it might be the boot cd - my cd has simcity in it - a wine project I am working on - getting it working !!
I am obliged to use 3.2.0-63-generic-pae in order to bootup properly.
How can I remove 64 and automatically bootup 63? I presume I have to edit a GRUB script but which and where is it?
If I physically remove 64 (how? which of the two shown below? do I need to make a new "generic" image?) will I then be deprived of future kernel updates which depend upon 64?
harveyp@harveyp:~$ sudo dpkg -l | grep linux-image
[sudo] password for harveyp:
ii linux-image-3.2.0-29-generic-pae 3.2.0-29.46 Linux kernel image for version 3.2.0 on 32 bit x86 SMP
ii linux-image-3.2.0-63-generic-pae 3.2.0-63.95 Linux kernel image for version 3.2.0 on 32 bit x86 SMP
ii linux-image-3.2.0-64-generic-pae 3.2.0-64.97 Linux kernel image for version 3.2.0 on 32 bit x86 SMP
ii linux-image-generic-pae 18.104.22.168.76 Generic Linux kernel image
Which kernel version to use ... has a reply which suggests ...
sudo apt-get purge linux-image-X linux-headers-X where X is the version that is giving you issues
but here too I am unsure what to do about the "generic" image as I have a pae 64 and a generic 64. And I don't wish to break it any more than it is already ...
Thank you for your help.