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JollyRoger
n00b
Joined: 24 Mar 2006
Posts: 24
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 Posted: Thu Jan 11, 2007 5:27 am Post subject: GRUB madness. |
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I'm having a pretty strange problem with GRUB. I just did an emerge -NDu world and installed some new packages. So I reboot my system and instead of GRUB normally working it just prints the word "GRUB". ONLY ONCE!!!! Searching online I could only find cases where GRUB prints "GRUB" infinitely. Mine only prints it once.
I have one SATA hard drive with WinXP and Gentoo installed. NTLDR is installed on the MBR and GRUB is installed on the Gentoo partition. NTLDR works normally and gives me a choice between Gentoo and WinXP. WinXP boots fine. Normally, If I select Gentoo, GRUB will come up and I hit enter to select my main kernel. However, like I said, it now only prints "GRUB" one time.
Here is my grub.conf:
| Code: |
default 0
timeout 10
splashimage=(hd0,2)/boot/grub/splash.xpm.gz
title=Gentoo Linux 2005.1 Kernel 2.6.17-r4
root(hd0,2)
kernel /boot/vmlinuz root=/dev/sda3 vga=792 video=vesafb:ywrap,mtrr splash=silent,fadein,kdgraphics,theme:Linux fbcon=scrollback:128K quiet CONSOLE=/dev/tty1 idle=halt
initrd /boot/fbsplash-Linux-1024x768
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My menu.lst symbolic link points to the right place. I've looked throught the Gentoo GRUB error message guide but I couldn't find anything. I've also tried chrooting into the Gentoo environment from a LiveCD and running grub-install /dev/sda3 (my Gentoo partition) or grub-install --root-directory=/boot /dev/sda3 but I just get the error message: "Could Not Find Device For /boot/boot: Not Found Or Not a Block Device". And yes, I made sure that my /etc/mtab is correct.
Any ideas? Why would this start happening all of a sudden with myself making no changes to Grub? |
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fangorn
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Joined: 31 Jul 2004
Posts: 1886
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| Posted: Thu Jan 11, 2007 6:34 am Post subject: |
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Standard solution:
start a livecd, reinstall grub. dd the boot record of your gentoo partition again and copy it to your windows partition.
Does your windows "see" the linux partitions (do you have a filesystem driver installed)? It seems something has overwritten the bootrecord of your gentoo partition.
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JollyRoger
n00b
Joined: 24 Mar 2006
Posts: 24
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| Posted: Thu Jan 11, 2007 7:16 am Post subject: |
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I tried your "standard solution" with a live CD. Like I said, I get the following error when I run grub-install:
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Could Not Find Device For /boot/boot: Not Found Or Not a Block Device
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The Gentoo Grub Error Guide suggests that I make sure I copied /proc/mounts to /etc/mtab but I did do that.
The command I run is:
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# grub-install --root-directory=/boot /dev/sda3
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Where /dev/sda3 is my Gentoo ext3 partition (sda2 being swap space and sda1 being NTFS).
Yes, I can mount the ext3 partition from Windows and read/write files properly with the Windows ext3 driver. |
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fangorn
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Joined: 31 Jul 2004
Posts: 1886
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| Posted: Thu Jan 11, 2007 7:36 am Post subject: |
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do you have a link boot in /boot that links to . (the current directory)?
grubinstall did never work right for me
type in
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grub
root (hd0,2)
setup (hd0,2)
exit
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to use the grub shell install method.
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JollyRoger
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Joined: 24 Mar 2006
Posts: 24
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| Posted: Thu Jan 11, 2007 5:20 pm Post subject: |
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That seems to have worked. I also dd'ed the boot record of the Gentoo Partition into Windows and GRUB now works properly.
Two questions:
1. What's up with grub-install not working? Shouldn't that do the same thing as the grub shell method?
2. I want to find out what caused this. What could possibly do this keeping in mind that I made not changes to GRUB (I did not even run grub)? Since I just updated a whole bunch of new packages I suspect that one of those may have created the problem. Is there a way to see last group of packages that I updated?
Thanks. |
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dundas
Guru
Joined: 16 Dec 2004
Posts: 317
Location: China, Earth
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| Posted: Fri Jan 12, 2007 1:50 am Post subject: |
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| fangorn wrote: | do you have a link boot in /boot that links to . (the current directory)?
grubinstall did never work right for me
type in
| Code: |
grub
root (hd0,2)
setup (hd0,2)
exit
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to use the grub shell install method. |
I solved my prob after
I manually copied in the lines from /proc/mounts to /etc/mtab, and emerging the new grub again, and then do the grub root and setup, however
I think the above line for setup should be
setup (hd0)
EDIT: by that I guess it means using grub as the primary boot loader, so don't do it when u need NTloader as the primay
hope that helps
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