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noxOffline
Post subject: grub error after DU  PostPosted: 28.05.2011, 10:23



Joined: 2010-09-14
Posts: 45

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Hi,
just did a DU and cannot boot my 32bit system anymore :

      Code:
error: symbol not found:'grub_divmod64_full'
Entering rescue mode...



How can i solve this problem?

Please help.
 
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piperOffline
Post subject: RE: grub error afer DU  PostPosted: 28.05.2011, 12:21
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Joined: 2010-09-11
Posts: 480
Location: cheektowaga, ny
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I had that problem not to long ago

http://manual.aptosid.com/en/sys-admin- ... htm#chroot

that fixed it for me

_________________
debian sid | apt-get into it
 
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slhOffline
Post subject: RE: grub error afer DU  PostPosted: 28.05.2011, 13:17



Joined: 2010-08-25
Posts: 758

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Please avoid double posts. This means MBR and on-filesystem grub ABIs don't match, e.g. you updated the grub packages, but didn't allow it to rewrite the MBR of your boot disk (debconf asks about this while upgrading). For grub (even grub-legacy, just that it had a negligible update frequency in recent years, so it didn't raise many heads) it's essential that MBR+"embedding area" (stage1+stage1.5) and the loadable modules in the boot partition (stage2) have a compatible ABI, which isn't stable between upstream versions. Therefore it's essential to allow grub-pc to rewrite the MBR/embedding (stage1/ stage1.5 aka.core.img) area for every upgrade
 
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noxOffline
Post subject: RE: grub error afer DU  PostPosted: 28.05.2011, 18:55



Joined: 2010-09-14
Posts: 45

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Thank you VERY much piper, this helped a lot, but instead of :

      Code:
apt-get install --reinstall grub-pc
(as in the manual),

I had to use

      Code:
grub-install /dev/sda


and then updated grub with :

      Code:
update-grub


to make it work. I hope it's OK like that...




@slh

Thank you slh. I really can't remember not allowing grub to rewrite the MBR during the DU. I always allow packages to replace my configs with the maintainers versions...


However, i decided to put grub on hold for the next..., lets say 5 years Wink since it's already the second time I've had problems with it during DU which is really annoying...
 
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CaesarTjalboOffline
Post subject: RE: grub error afer DU  PostPosted: 03.06.2011, 22:37



Joined: 2010-09-13
Posts: 95
Location: Enschede
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Problem occured here too. I attribute it to having a separate boot partition.
 
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