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gphlynch
n00b
Joined: 10 Jun 2004
Posts: 6
Location: New Zealand
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 Posted: Thu Jun 10, 2004 11:34 am Post subject: 2004.1 new install grub using grub.conf which I can't find |
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newbie alert...
When I start the machine I have to manually edit the grub commands at the splashscreen (before booting) to these:
root (hd0,0)
kernel /kernel-2.4.25-gentoo-r3 root=/dev/ram0 init=/linuxrc real_root=/dev/hda3 ramdisk_size=8192
initrd /initrd-2.4.25-gentoo-r3
Currently it boots as above but without ramdisk_size=8192
which means I get errors and it basically fails.
After my install I looked in /boot for the grub.conf file - and there was NOTHING THERE!!  /boot was empty. I re-installed grub (I think) and now have /boot/grub/grub.conf and other files. However the grub at boot up is not looking at the /boot/grub/grub.conf file and using 'locate' I can't find any others.
What do I do?
my 'current' grub.conf:
default 0
timeout 30
splashimage=(hd0,0)/grub/splash.xpm.gz
title=Gentoo Linux 2.4.25
root (hd0,0)
kernel /kernel-2.4.25-gentoo-r3 root=/dev/ram0 init=/linuxrc real_root=/dev/hda3 ramdisk_size=8192
initrd /initrd-2.4.25-gentoo-r3
my current /etc/fstab file:
/dev/hda1 /boot ext3 noauto,noatime 1 1
/dev/hda3 / reiserfs noatime 0 0
/dev/hda2 none swap sw 0 0
etc
Now one thing I have realised (a bit late) is that the fstab file had placeholders when I installed grub (not the physical locations), i.e.
/dev/BOOT /boot ext3....
/dev/ROOT /...
any help appreciated, I would like to be able to fix it rather than have to rebuild it... all part of the learning curve  |
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moocha
Watchman
Joined: 21 Oct 2003
Posts: 5722
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| Posted: Thu Jun 10, 2004 11:44 am Post subject: Re: 2004.1 new install grub using grub.conf which I can't fi |
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| gphlynch wrote: | | After my install I looked in /boot for the grub.conf file - and there was NOTHING THERE!! /boot was empty. I re-installed grub (I think) and now have /boot/grub/grub.conf and other files. However the grub at boot up is not looking at the /boot/grub/grub.conf file and using 'locate' I can't find any others. |
That's to be expected, because your original files are on the separate file system (or partition if you like) that the guide (rightly) adivses you to create. That file system isn't mounmted by default when normally running the system (because it's not needed - and why provide access to it when there's normally no requirement to do so?  ) As you can see in /etc/fstab, | Code: | | /dev/hde1 /boot ext2 noauto,noatime 1 2 |
(this is just my setup - for you it may be /dev/hda1, /dev/sda1, or whatnot). noauto ensures that /boot isn't automatically mounted.
When the /boot file system isn't mounted, anything you've put into /boot resides on the root (/) file system. When you mount it at /boot, anything that was there disappears (until it's unmounted again) and the /boot directory contents is replaced by the contents of the just mounted file system.
My advice is to ensure that /boot is unmounted (ignore errors), move whatever you have under /boot to somewhere else, e.g. /root/bootbak | Code: | mkdir /root/bootbak
mv /boot/* /root/bootbak
mv /boot/.??* /root/bootbak |
mount the /boot file system and modify the files that are now under /boot accordingly. Grub uses the grub.conf located on that (not automatically mounted) file system.
Just rememeber that before you modify anything under /boot, such as editing grub.conf or placing new kernel images there, you have to mount /boot.
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gphlynch
n00b
Joined: 10 Jun 2004
Posts: 6
Location: New Zealand
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| Posted: Thu Jun 10, 2004 9:38 pm Post subject: |
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ah, well that makes sense, many thanks  |
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Installing Gentoo
