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sog
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Joined: 04 Apr 2004
Posts: 356
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 Posted: Fri Sep 24, 2004 6:18 pm Post subject: Moved Partitions Now Can't Boot - Help Needed [SOLVED] |
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hi folks - pretty simple query here, i think:
i've moved my boot, swap and general partitions up (sequentially speaking) on the hard drive to free up some unallocated space, and unsurprisingly my machine won't boot now. gives me:
| Code: | GRUB Loading stage1.5.
GRUB loading, please wait...
Error 22 |
acronis in my XP partition - when moving the partitions originally - said that i'd need to do this:
| Code: | Insert Linux boot disk
Boot PC to Linux boot diskette and login as root
/sbin/grub
restart |
just as predictably, that didn't work.
anyhow, how do i clue GRUB in to where the new partitions are. i can work off the Gentoo 2000.1 install disk.
any and all help appreciated. i'm ok b/c i did this at the end of the week, and backed up my home and etc drives beforehand, but i need my laptop back.
if i have to rebuild the whole thing i will, but would obviously prefer to have my existinging installation - which should still be there just waiting to be found - recovered.
TIA.
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Last edited by sog on Sat Sep 25, 2004 10:21 am; edited 1 time in total |
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amiatrome
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Joined: 28 Jun 2004
Posts: 180
Location: Campus | Arena Country Club | Home
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| Posted: Fri Sep 24, 2004 6:26 pm Post subject: |
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Use the Gentoo LiveCD and update /boot/grub/grub.conf. For your convenience . You will need to update your fstab as well.
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sog
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Joined: 04 Apr 2004
Posts: 356
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| Posted: Fri Sep 24, 2004 6:53 pm Post subject: |
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thx for the quick tip - love this place.
anyway, this is a stupid question i know but how do i mount the file system properly to get at the grub.conf file? i tried going by the mounting instructions in the install guide, listed here:
| Code: | # mount /dev/hda3 /mnt/gentoo
# mkdir /mnt/gentoo/boot
# mount /dev/hda1 /mnt/gentoo/boot |
no go - "you must specify the filesystem type"
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sog
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Posts: 356
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| Posted: Fri Sep 24, 2004 7:11 pm Post subject: |
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ok, scratch that question as it was truly dumb. was fogging on the fact that i'm running a dual boot, so of course the kernel was having trouble mounting an NTFS partition.
anyhow, i got that mounted, and checked out my grub.conf.
i changed the HD0,2 in my grub.conf to HD0,1 to reflect the new partitioning scheme.
but after a reboot i got the same exact error - 22 - and didn't even get into GRUB. a quick fdisk -p shows me that my new boot partition - /dev/hda2 - is not marked as a boot partition in fdisk - might that have something to do with it? if so, how do i toggle that on without wiping out my boot partition?
here's the important stuff so far:
my partition table:
| Code: | device boot start end blocks system
/dev/hda1 * 1 1576 11914528+ HPFS/NTFS
/dev/hda2 1577 1609 249480 Linux
/dev/hda4 1610 2859 9450000 Extended
/dev/hda5 1610 2122 3878248 Linux swap
/dev/hda6 2123 2859 5571688 Linux |
my grub.conf
[both instance of hd0,1 have been changed from what was hd0,2]
| Code: |
default 0
timeout 30
splashimage=(hd0,1)/grub/spash.xpm.gz
title=Gentoo Linux 2.6.7
root (hd0,1)
kernel /kernel-2.6.7-gentoo root=/dev/hda6
title=Windows XP
rootnoverify (hd0,0)
chainloader +1 |
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sog
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Joined: 04 Apr 2004
Posts: 356
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| Posted: Fri Sep 24, 2004 8:17 pm Post subject: |
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just for reference, here's what the partition table USED to look like - this is prior to the reparitioning:
| Code: |
Disk /dev/hda: 30.0 GB, 30005821440 bytes
240 heads, 63 sectors/track, 3876 cylinders
Units = cylinders of 15120 * 512 = 7741440 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 1 1576 11914528+ 7 HPFS/NTFS
/dev/hda2 2489 2593 793800 1b Hidden W95 FAT32
/dev/hda3 2594 2626 249480 83 Linux
/dev/hda4 2627 3876 9450000 5 Extended
/dev/hda5 2627 3139 3878248+ 82 Linux swap
/dev/hda6 3140 3876 5571688+ 83 Linux |
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amiatrome
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Joined: 28 Jun 2004
Posts: 180
Location: Campus | Arena Country Club | Home
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| Posted: Sat Sep 25, 2004 4:06 am Post subject: |
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| Quote: | 22 : No such partition
This error is returned if a partition is requested in the device part of a device- or full file name which isn't on the selected disk. |
grub.conf only specifies where the kernel is. I think you would have to do the following to update your hard drive's MBR so grub can be loaded. Didn't occur to me earlier.  Hope this helps.
| Quote: | Code Listing 9: Installing GRUB in the MBR
grub> root (hd0,0) (Specify where your /boot partition resides)
grub> setup (hd0) (Install GRUB in the MBR)
grub> quit (Exit the GRUB shell) |
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sog
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Posts: 356
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| Posted: Sat Sep 25, 2004 10:06 am Post subject: |
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CHECK THAT - figured it out.
here's what i did:
mount /dev/hda6 /mnt/gentoo
mount /dev/hda3 /mnt/gentoo/boot
chroot /mnt/gentoo /bin/bash
env-update
grub
root (hd0,1)
setup (hd0)
quit
rebooted, and got some weird disk error but i'm hopeful that's just my fstab needing an update. will report back.
thanks for all the help so far
>>>>>OLD POST<<<<<<
excellent - that is exactly what i was looking for.
anyhow, i figure what i need to do now is
1. mount the environment
2. chroot the environment
3. grub as below
so my question is, can anyone give me the commands spelled out using my environment (outlined above). i'm hesitant to work off the install version, b/c obviously i don't want to install.
i'm a little cagey simply because i'd prefer not to wipe anything out, so any guru help here would be much appreciated 
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sog
Guru
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Posts: 356
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| Posted: Sat Sep 25, 2004 10:20 am Post subject: |
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yup - that was it.
simply altered my boot in fstab to hda2 from hda3 and everything is more or less kosher.
thanks again for the help amiatrome. you rock.
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pjp
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Joined: 16 Apr 2002
Posts: 15665
Location: Colorado
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| Posted: Sat Sep 25, 2004 3:56 pm Post subject: |
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Moved from Installing Gentoo.
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