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Old 05-05-2004, 08:59 PM   #1
mman49
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Screwed up my grub. conf file. Can't get into Fedora?


Hello all.
I guess I did a dumb thing when I edited the grub. conf file.
I tried to hash out previous versions of the kernel, but must have hashed out something I should have not.
Now I get a error when trying to boot. This is what is says

"Booting 'Fedora Core (2.4.22-1.2179.nptl)'
root (hd0,0)
Filesystem type is ext2fs, partition type 0x83
kernel /vmlinuz-2.4.22-1.2179.nptl ro root=abel=/ hdc=ide-scsi rhgb
"Error 15: file not found press any key to contiue".
I can do the c to get into a grub command line but don't have a clue what to do in there

How can I get back in the grub conf file to change it back.
By the way, I do not have a floppy drive in this computer...
I tried to use the first install disk for Fedora and the rescue mode, but I don't have a clue how to use this.
Also, it's not showing my the boot directory where the grub. conf file is.
Don't have a clue how to use vi or emacs either...


Any help on this would be greatly appreciated.....

Thanks.
Mitch.
 
Old 05-05-2004, 09:20 PM   #2
vdogvictor
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The easies way would be to boot from your fedora cd and type "linux rescue" at the boot screen. Tell it all the stuff and when you get to a command prompg type these two commands

chroot /mnt/sysimage
grub-install /dev/hda

that installs grub to your MBR again...hopefully it doens't use your existing GRUB.conf file though...but hey if it does just go to rescue again and do this

chroot /mnt/sysimage

then edit your grub.conf in a text editor.

edit: I didn't notice you don't know how to use VI...try pico or joe if they are installed (they might come with fedora). If not download jed from
http://www.jedsoft.org/ and install it.

Last edited by vdogvictor; 05-05-2004 at 09:22 PM.
 
Old 05-05-2004, 10:13 PM   #3
mman49
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Thanks for the replay vdogvictor, it's appreciated.

I figured it out.

Not good at all with command text editors.(But I'm learning)
What I did was this used the backup copy gedit makes.
Once I got into the grub folder via the rescue fedora disk1, I did this

mv grub.conf~ grub.conf and it worked.

Sure got a lot of practice doing the command line stuff in the last two hours.

Use see, I updated my kernel to 2488 or what ever it was and xf86 didn't work with it and I didn't feel like bothering updating xf86, and if it did work, I'd probably have to update the nvidia driver.
So I did a rpm -e to the new kernel update and had to re edit my xf86 file to get the nvidia working again, which I did.



Thanks for the help...

Mitch
 
Old 05-06-2004, 03:35 PM   #4
WhatsHisName
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vdogvictor: The other day when I was trying to help someone with a RHL9 grub problem, I tried to run grub-install from linux rescue (RHL9) as you described. It would not run and I assume the same thing would happen under fedora.

You can make a Grub floppy boot disk under linux rescue, since dd does work, and use it to do the grub installation.
 
Old 05-07-2004, 08:35 PM   #5
vdogvictor
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Well I have done it before (in fedora) and it definently worked for me...maybe you didn't chroot first or your forgot to put where you want it installed /dev/hda is the MBR of hda and /dev/hda1 would be the superblock of hda1 (i think).
 
Old 05-07-2004, 10:11 PM   #6
comprookie2000
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Also if you run update-grub it will make a new menu list in later kernels.Helps me when I can't manually figure out the right syntax to use,david
 
  


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