Ubuntu
grub2 package

  1. Bug #410522
  2. Comment #3

Comment 3 for bug 410522

Revision history for this message
Matteo Settenvini (tchernobog) wrote : Re: package grub-ieee1275 1.96+20090725-1ubuntu1 failed to install/upgrade: il sottoprocesso vecchio script di post-installation ha restituito un codice di errore 1

This is not a duplicate of bug #401663.

I've found the culprit. This bugs still occurs for me, and its not grub's fault.
On powerpc machines, the bootloader (grub2 along with yaboot) are put on a separate partition, which is HFS formatted.

I mount this partition as /boot/grub.

The problem is with hfsutils: even if they report (e.g. via the output of "mount") that this filesystem is mounted read-write, after an abrupt halting of the machine it's mounted read-only. The only real fix is to manually unmount /boot/grub, run fsck on it which clears the dirty flag, and then remounting it and running grub2 installation again.

So I believe that fixing the output of mount, or forcing a fsck when mounting a hfs volume, is the only real solution to this.

Or whenever the filesystem gets dirty, and update-grub is called, you'll get errors, potentially leaving your system unusable.