Comment 4 for bug 316872

Just adding more history to this bug report:

Tue, 13 Jan 2009 18:36:58 -0800 (Wed, 02:36 GMT) Dean wrote:

More information (all good)--I backed up my /boot to a different
drive--then deleted it & re-installed it--thought was to recreate it as
a "real" EXT4 section & it worked that way--I reset grub to use it & it
had no problem once the /boot was done in "real" EXT4....I foresee many
problems that can spring from this with novice users that want the
"latest & greatest" & do not leave themselves a backdoor out...... ;)

Looks like grub needs to "tolerate" EXT3 within EXT4 partitions.....at
least within the /boot folder.....

I hope this has helped you a bit....