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n00b
Joined: 10 May 2005
Posts: 15
Location: Italy
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 Posted: Mon Sep 05, 2005 9:14 am Post subject: GRUB error 5 |
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I have a strange problem, grub stops at stage 1.5 with error 5 (invalid partition table), but the partition table looks fine, fdisk shows nothing wrong. Also grub from suse works fine, so I assume it is a grub problem.
What changed on my system is that I installed suse (as a backup - I like living on the edge with gentoo  ) and its grub.
I modified suse's grub config by hand to reflect gentoo's one, and it works fine. Now I tried to reinstall gentoo's grub and I got this problem.
/boot is in the same partition as root in both systems (gentoo: hde2, suse: hde3 since it is an external controller) and
| Code: | | grub-install /dev/hde |
and
| Code: | root (hd0,1) # if gentoo
root (hd0,2) # if suse
setup (hd0) # for both
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succeessed with no error.
It may be that I upgraded grub's version meanwhile, but a few months have passed so I cannot remember. I already tried stripping cflags before emerging grub and googled around but found no mention of such a problem.
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chrbecke
Guru
Joined: 12 Jul 2004
Posts: 598
Location: Berlin - Germany
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| Posted: Mon Sep 05, 2005 10:05 am Post subject: |
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I think what causes the problem is that you are not supposed to install grub in your MBR and use a different grub.conf for each distribution.
grub is a boot loader, if installed in the MBR it should be common for all operating systems on your machine (i. e. boot the operating system directly or chainload it's specific boot loader).
If you want to install a version of grub each for Gentoo and Suse, you should have one installation in your MBR which loads on boot. Then you need one installation in each distribution's boot (or root) partition, which you chainload from grub installed in your MBR.
So this is how grub should be used, not sure what to do to solve your problem, though.
I'd suggest a reinstall of grub, using one distro and do not install grub using the other, but add an entry for your second distro in your grub.conf. |
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n00b
Joined: 10 May 2005
Posts: 15
Location: Italy
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| Posted: Mon Sep 05, 2005 10:51 am Post subject: |
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| chrbecke wrote: | | I'd suggest a reinstall of grub, using one distro and do not install grub using the other, but add an entry for your second distro in your grub.conf. |
This is what I did. I use one grub to boot all my os's. The config is almost the same since I copied the gentoo part from gentoo to suse and vice-versa to ensure that it was not a config problem. You don't need to chainload another grub, since it can boot linux from any partition, not just the one you've installed it to. So I have suse's grub with an entry for suse and an entry for gentoo, gentoo's grub.conf is the same (except for splashimage config line). This always worked fine, but now:
install suse's grub -> works
install gentoo's grub -> doesn't work.
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syg00
l33t
Joined: 23 Aug 2004
Posts: 907
Location: Brisbane, AUS
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| Posted: Mon Sep 05, 2005 11:07 am Post subject: |
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Back in January I masked grub >=0.95 (comment in package.mask)
Was in response to a problem someone posted - can't remember why now, but I'm sticking with 0.94, and haven't seen any issues others are reporting.
With the lack of development on grub legacy, I don't think I'm going to miss anything I desperately need, and it don't break.
Might be worth forcing a downgrade to see if that fixes your issue. |
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n00b
Joined: 10 May 2005
Posts: 15
Location: Italy
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| Posted: Tue Sep 06, 2005 3:52 pm Post subject: |
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I confirm: I tried every version backward and it seems the latest working one is 0.94-r1. I will stick to that one for the moment.
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