[Bug 863134] [NEW] Kernel update fails due to grub update

[Matthew Wyneken]

Public bug reported:

LTSP client is running Ubuntu 11.04

I had problems during an update in the chroot that wanted to update to
kernel 2.6.38-11.50. This was the first time a kernel update was
performed on this image so it's the first time I could run into this
problem.

The installation process runs /etc/kernel/postinst.d/zz-update-grub,
which exits with an error because it can't find the root partition.
There is no root partition mounted because the update is performed in
chroot.

I had the same problem when I tried to perform the update on a running
client system. In this case the problem was due to root being on an aufs
disk rather than on an actual harddisk.

I came to the conclusion that an LTSP image doesn't have to have a
working grub because it doesn't boot from disk. My solution: „chmod -x
/etc/kernel/postinst.d/zz-update-grub“.

If my thinking is correct I suggest that zz-update-grub be removed from
the directory when the LTSP client tree is first created.

** Affects: ltsp
     Importance: Undecided
         Status: New

** Affects: ltsp (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: grub kernel ltsp

** Also affects: ltsp (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/863134

Title:
  Kernel update fails due to grub update

Status in Linux Terminal Server Project:
  New
Status in “ltsp” package in Ubuntu:
  New

Bug description:
  LTSP client is running Ubuntu 11.04

  I had problems during an update in the chroot that wanted to update to
  kernel 2.6.38-11.50. This was the first time a kernel update was
  performed on this image so it's the first time I could run into this
  problem.

  The installation process runs /etc/kernel/postinst.d/zz-update-grub,
  which exits with an error because it can't find the root partition.
  There is no root partition mounted because the update is performed in
  chroot.

  I had the same problem when I tried to perform the update on a running
  client system. In this case the problem was due to root being on an
  aufs disk rather than on an actual harddisk.

  I came to the conclusion that an LTSP image doesn't have to have a
  working grub because it doesn't boot from disk. My solution: „chmod -x
  /etc/kernel/postinst.d/zz-update-grub“.

  If my thinking is correct I suggest that zz-update-grub be removed
  from the directory when the LTSP client tree is first created.

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