[Bug 691913] Re: Kernel panic on reboot after installation

[Marcus Tomlinson]

This release of Ubuntu is no longer receiving maintenance updates. If
this is still an issue on a maintained version of Ubuntu please let us
know.

** Changed in: grub2 (Ubuntu)
       Status: New => Incomplete

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Title:
  Kernel panic on reboot after installation

Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  I'm a new Ubuntu user. I had trouble with kernel panic on booting
  after fresh installation (on normal IDE hard disk, not a VM install).
  The error looked like this:

  Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
  Pid: 1, comm: swapper Not tainted 2.6.35-22-generic #33-Ubuntu
  Call Trace:
  ? printk+0x2d/0x35
  panic+0x5a/0xd2
  mount_block_root+0x1d3/0x26c
  ? sys_mknod+0x2c/0x30
  mount_root+0x59/0x5f
  prepare_namespace+0x14e/0x192
  ? sys_access+0x25/0x30
  kernel_init+0x18e/0x19d
  ? kernel_init+0x0/0x19d
  kernel_thread_helper+0x6/0x10 

  My problem has already been solved thanks to this forum post:
  http://www.linuxquestions.org/questions/ubuntu-63/kernel-panic-on-maverick-842569/#post4150307
  After changing the root=UUID... in the boot line to root=/dev/sha1, Ubuntu was able to boot properly.

  It seems to me like there's something wrong with what creates the
  initial boot line. I'm new and nearly turned away after trying to
  install several times and also trying various other tips from forums.
  It would be good to fix this.

  Please keep up your good work!

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