grub

thanksforfish · n00b Joined: 24 Aug 2002 Posts: 29 Location: UK

Hi - I have installed gentoo but can't boot properly. Grub loads, then comes up with a grub prompt. I can type kernel (hd0,6)/boot/bzImage then type boot and gentoo boots all right. My menu.lst is configured :

title=Gentoo Linux
root (hd0,6)
kernel /boot/bzImage root=/dev/hda9

Am I doing something obvious wrong ? Grub is installed to the mbr.

Thanks.

BackSeat · Posted: Tue Sep 03, 2002 5:59 pm Post subject:

If (hd0,6)/boot/bzimage boots your system then your menu.lst is incorrect. Try:

thanksforfish · n00b Joined: 24 Aug 2002 Posts: 29 Location: UK

Hi - thanks for the reply.
I thought root in grub terminology meant the /boot partition which in my case is hda7 hence I used (hd0,6) - this would seem consistent with (hd0,6)/boot/bzimage being able to boot the kernel from the grub prompt. i thought the root= on the kernel line was just an argument to tell the kernel where "/" was.

Or have I completely misunderstood :roll:

Thanks.

arkane · l33t Joined: 30 Apr 2002 Posts: 918 Location: Phoenix, AZ

Mr.Yucky · n00b Joined: 25 Aug 2002 Posts: 10

I recently had fun with grub, 2 suggestions:
first make sure that u run the grub "root" command to the rite partitions, and second make sure that after you compiled your kernel that you copied it to the rite location.....

thanksforfish · n00b Joined: 24 Aug 2002 Posts: 29 Location: UK

Hi, here is my full menu.lst (/boot is on hda7 and / is on hda 9, swap is on hda8, windows 98 is on primary partition hda1, d and e are on hda5 and hda6)

default 0
timeout 10
splashimage=(hd0,6)/boot/grub/splash.xpm.gz

title=Gentoo Linux
root (hd0,6)
kernel /boot/bzImage root=/dev/hda9

title=Windows 98
root (hd0,0)
chainloader +1

title=Gentoo Linux Safe Image
root (hd0,6)
kernel /boot/bzImage.safe root=/dev/hda9

Is it possible that the boot partition needs to be below 1024 or doesnt that problem exist anymore. I can't understand why grub won't boot with this menu.lst but will boot when i give it the kernel command and boot command.
Are there any other files that grub uses that i need to have configured ?
I also read somewhere that devfs should be switched on but not have the mount option set in the kernel - in my kernel it is switched on and has mount set could this be the cause ?

(I have also tried lilo but that fails with a kernel init panic).

Thanks for any help.

kirill · Posted: Wed Sep 04, 2002 7:14 pm Post subject:

Danielb · Posted: Wed Sep 04, 2002 7:53 pm Post subject:

I have had troubles with grub lately (it hung when trying to display the menu), and i fixed it changing the background image (strange but true).

thanksforfish · n00b Joined: 24 Aug 2002 Posts: 29 Location: UK

Hi - again thanks for the replies - I did mount /boot as this is the only way I could access menu.lst to edit it. Also I have not unmasked anything, only installed in the way described in the guide (presumably this will not install the new grub). Is grub happy to boot from a partition above 1024 or does this depend on bios ? I am at a bit of a loss as to how to get this to work. Does anyone have any more ideas ?
Thanks.

water · Posted: Thu Sep 05, 2002 8:05 am Post subject:

That problem with cilinder 1024 only exists with old versions of LiLo.

Maybe installing grub into the MBR again might help.
_________________
Groeten uit Holland

Valen · Posted: Fri Sep 06, 2002 2:48 am Post subject: Re: grub