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Old 05-26-2003, 03:56 PM   #16
blackx
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Registered: May 2003
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I read this post and decided I wanted to try this. I booted of a win98 cd and ran "fdisk /mbr", when I rebooted I got a no os found message.
I booted off the RH9 CDROM1 and went into linux rescue.
At the prompt I typed:
chroot /mnt/sysimage
It appears everything is there but if I go to the /boot and run "ls" nothing is there.
Run "mount" and it appears /dev/sda1 was not mounted to /boot
OO btw the parts are:
/dev/sda1 /boot
/dev/sda2 /
/dev/sda3 swap
I then ran "mount /dev/sda1 boot" from /
Now I have a boot and lost&found folder below /boot.
below the /boot/boot/grub folder appears to be everything.
I then tried to run "grub-install --root-directory=/boot /dev/sda1"
Now when I boot up instead of a "No operating system found" error I just get a "grub>" prompt and it says the vesion above and says hit tab for a list of commands...
Anybody tell me what I missed?
 
Old 05-26-2003, 04:14 PM   #17
dorian33
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Registered: Jan 2003
Location: Poland, Warsaw
Distribution: LFS, Gentoo
Posts: 591

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Quote:
Originally posted by blackx
I read this post [...]
I then tried to run "grub-install --root-directory=/boot /dev/sda1"
[...]
Anybody tell me what I missed?
I you have read the post you shold have find out that it should be:
grub-install --root-directory=/ dev/sda1
 
Old 05-26-2003, 05:27 PM   #18
blackx
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Registered: May 2003
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"grub-install --root-directory=/ dev/sda1" - Do you mean:
grub-install --root-directory=/ /dev/sda1
or
grub-install --root-directory=/dev/sda1

The command you posted my system really isnt digging to much, not trying to be a smart@55 either im just trying to avoid having to reload.
 
Old 05-26-2003, 05:34 PM   #19
dorian33
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Location: Poland, Warsaw
Distribution: LFS, Gentoo
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grub-install --root-directory=/ /dev/sda1
sorry for typo
 
Old 05-27-2003, 02:44 PM   #20
blackx
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Registered: May 2003
Posts: 14

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I rebooted to rescue mode, chrooted the /mnt/sysimage over to / so I had my normal environment.
I ran "grub-install --root-directory=/ /dev/sda1" but when I rebooted it just went to a "grub>" prompt. I figured it might had something to do with me running the command so much or possibly deleting something else. I reloaded RH9 again the same way.. I went to a terminal window inside of KDE and ran the mount command:
/dev/sda2 on / type ext3
none on /proc type proc
usbdevfs on /proc/bus/usb type usbdevfs
/dev/sda1 on /boot type ext3
none on /dev/pts type devpts
none on /dev/shm type tmpfs
I then ran vi on
/etc/grub.conf
/boot/grub/grub.conf
and got the same info:
default=0
timeout=10
splasimage(hd0,0)/grub/splash.xpm.gz
title Red Hat Linux (2.4.20-8smp)
root (hd0,0)
kernel /vmlinuz-2.4.20-8smp ro root=Label=/
initd /initrd-2.4.20-8smp.img
title Red Hat Linux (2.4.20-8)
root (hd0,0)
kernel /vmlinuz-2.4.20-8 ro root=Label=/
initd /initrd-2.4.20-8.img
Then I ran "vi /etc/fstab"
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
none /dev/pts devpts grid=5,mode=620
none /proc proc defaults
none /dev/shm tmpfs defaults
/dev/sda3 /swap swap defaults
/dev/cdrom /mnt/cdrom < typical info>
o 0 0
/dev/fd0 /mnt/floppy <typical info>

OOOOOKKK with all that in mind if I want to practice fixing the boot loader I should be able to run fdisk /mbr on the drive, boot off the RH9 cd1, go into rescue mode which will mount my environment to /mnt/sysimage, run "chroot /mnt/sysimage". Then all that is left is running the grub-install command correct?
grub-install --root-directory=/ /dev/sda1
or
grub-install --root-directory=/ /dev/sda

Mainly I am trying to play with fixing grub via rescue mode so any other tips would be much apperciated also...
Thanks for dealing w/ my limited linux knowledge.. hopefully this will change quickly....
 
  


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