[ncolug] grub raid lvm
- From: Mike <bellyacres@xxxxxxxxx>
- To: ncolug@xxxxxxxxxxxxx
- Date: Sat, 06 Apr 2013 13:32:47 -0400
Just some info, more may follow.
Upgrading to wheezy from squeeze with grub-pc with /boot /root et. al.
setup on raid lvm has been a treat.
The short of the story is core.img (a grub file) will not fit in a
typical boot sector of old. If my memory is working right 64 blocks of
512 is 32K. Sectors 0 - 63. This needs to be increased in size.
Recommended is 0 - 2047 or 2048 sectors, resulting in 2M or so boot
sector. The fdisk in wheezy will do this automagically!
However as a warning it hasn't been so easy and steps to fix it are
virtually non existent via google. I've manages to mostly recover, yet
it hasn't been easy or pretty. A failing disk with sectors near the
end hasn't helped either.
The moral of the story, I really like this setup, but must be crazy to
keep it going... Maybe I'll update more of the story later.
Mike
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