[TriLUG] Grub boot problem
William Sutton
william at trilug.org
Sun Apr 16 01:42:15 EDT 2006
I have one. I presume the date is Saturday's since I went through the
grub setup process to get material to paste into this email...
For what it's worth, here's the info:
-----
# ls -l /boot/grub/stage2
-rw-r--r-- 1 root root 108296 Apr 15 19:18 /boot/grub/stage2
# md5sum /boot/grub/stage2
65f83401414500f58bf0ae036493cb18 /boot/grub/stage2
-----
--
William Sutton
On Sun, 16 Apr 2006, Rodney Radford wrote:
>
> Stage 2 of grub, which follows after stage 1.5, is obviously not loading, and I suspect the error #17 is EEXIST (from errno.h) stating the stage2 bootloader file is missing.
>
> When you boot with the livecd, check and see if you have a /boot/grub/stage2 file present on your system. Perhaps it was somehow trashed/deleted.
>
> -----Original Message-----
> >From: William Sutton <william at trilug.org>
> >Sent: Apr 15, 2006 11:52 PM
> >To: trilug at trilug.org
> >Subject: [TriLUG] Grub boot problem
> >
> >I tried irc.freenode.net #grub (twice) and nobody responded, so to the
> >trilug list I come...
> >
> >Please bear with me as I'm trying to be as specific and detailed at the
> >outset as possible to give a clear picture of what's happening. Since I'm
> >not an expert on this, there may be a lot of useless data here.
> >
> >I have a system running Gentoo 2005.1, with all recent updates. Last
> >Sunday, I attempted to run xcdroast as root (it refused to run as a user
> >or under sudo...we can address that later, so no flames, please). It
> >locked the system (X refused to respond, keyboard Num Lock refused to
> >respond, remote login to kill the process was useless in that login was
> >allowed but kill, reboot, even init 0 responded with errors).
> >
> >I powered the system off, and powered it back on.
> >
> >It came up and said
> >
> >-----
> >GRUB _
> >-----
> >
> >and sat there doing nothing.
> >
> >So I rebooted it (actually, the keyboard refused to respond again, so I
> >went through the manual power cycle process). I popped in my Gentoo
> >2005.1 livecd, mounted everything, and ran fsck on all the disks. Aside
> >from a large number of inodes freed, it passed muster.
> >
> >Before I go further, here's the output of fdisk -l:
> >
> >-----
> >Disk /dev/hda: 3240 MB, 3240646656 bytes
> >15 heads, 63 sectors/track, 6697 cylinders
> >Units = cylinders of 945 * 512 = 483840 bytes
> >
> > Device Boot Start End Blocks Id System
> >/dev/hda1 * 1 217 102501 83 Linux
> >/dev/hda2 218 6697 3061800 83 Linux
> >
> >Disk /dev/sda: 9139 MB, 9139200000 bytes
> >255 heads, 63 sectors/track, 1111 cylinders
> >Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> >/dev/sda1 1 261 2096451 82 Linux swap / Solaris
> >/dev/sda2 262 1111 6827625 83 Linux
> >
> >Disk /dev/sdb: 36.7 GB, 36703918080 bytes
> >255 heads, 63 sectors/track, 4462 cylinders
> >Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> > Device Boot Start End Blocks Id System
> >/dev/sdb1 1 653 5245191 83 Linux
> >/dev/sdb2 654 4462 30595792+ 83 Linux
> >-----
> >
> >and the corresponding mounts from mount:
> >
> >-----
> >/dev/sdb2 on / type ext3 (rw)
> >/dev/sdb1 on /usr type ext3 (rw)
> >/dev/sda2 on /home type ext3 (rw)
> >/dev/hda1 on /boot type ext2 (rw)
> >/dev/hda2 on /var type ext3 (rw)
> >none on /proc type proc (rw,nodiratime)
> >-----
> >
> >To verify that I have the right disks for the next thing I wanted to do, I
> >checked /boot/grub/device.map:
> >
> >-----
> >(fd0) /dev/fd0
> >(hd0) /dev/hda
> >(hd1) /dev/sda
> >(hd2) /dev/sdb
> >-----
> >
> >Now then...the next thing I did was to manually re-setup grub on the first
> >MBR of all disks (NB, it doesn't show here, but when I ran grub, there
> >were an awful lot of error messages about fd0; more on those later):
> >
> >-----
> >grub> root (hd0,0)
> > Filesystem type is ext2fs, partition type 0x83
> >
> >grub> setup (hd0)
> > Checking if "/boot/grub/stage1" exists... yes
> > Checking if "/boot/grub/stage2" exists... yes
> > Checking if "/boot/grub/e2fs_stage1_5" exists... yes
> > Running "embed /boot/grub/e2fs_stage1_5 (hd0)"... 16 sectors are embedded.
> >succeeded
> > Running "install /boot/grub/stage1 (hd0) (hd0)1+16 p (hd0,0)/boot/grub/stage2 /boot/grub/menu.lst"... succeeded
> >Done.
> >
> >grub> setup (hd1)
> > Checking if "/boot/grub/stage1" exists... yes
> > Checking if "/boot/grub/stage2" exists... yes
> > Checking if "/boot/grub/e2fs_stage1_5" exists... yes
> > Running "embed /boot/grub/e2fs_stage1_5 (hd1)"... 16 sectors are embedded.
> >succeeded
> > Running "install /boot/grub/stage1 d (hd1) (hd1)1+16 p (hd0,0)/boot/grub/stage2 /boot/grub/menu.lst"... succeeded
> >Done.
> >
> >grub> setup (hd2)
> > Checking if "/boot/grub/stage1" exists... yes
> > Checking if "/boot/grub/stage2" exists... yes
> > Checking if "/boot/grub/e2fs_stage1_5" exists... yes
> > Running "embed /boot/grub/e2fs_stage1_5 (hd2)"... 16 sectors are embedded.
> >succeeded
> > Running "install /boot/grub/stage1 d (hd2) (hd2)1+16 p (hd0,0)/boot/grub/stage2 /boot/grub/menu.lst"... succeeded
> >Done.
> >-----
> >
> >looks ok to me, other than the messages previously mentioned.
> >
> >I rebooted. This time it came up and stated that it was loading Grub
> >stage 1.5. So far so good...until I saw the following (from memory):
> >
> >-----
> >Grub
> >Error 17
> >-----
> >
> >Nothing beyond "Error 17". I googled all over the place but didn't find
> >anything that helped me in particular. So for giggles I decided to do a
> >grub-install --recheck to see if everything was OK.
> >
> >-----
> ># grub-install --recheck /dev/hda
> >Probing devices to guess BIOS drives. This may take a long time.
> >end_request: I/O error, dev fd0, sector 0
> >end_request: I/O error, dev fd0, sector 0
> >Buffer I/O error on device fd0, logical block 0
> >end_request: I/O error, dev fd0, sector 0
> >Buffer I/O error on device fd0, logical block 0
> >ide-floppy driver 0.99.newide
> >hdc: No disk in drive
> >hdc: No disk in drive
> >end_request: I/O error, dev fd0, sector 0
> >end_request: I/O error, dev fd0, sector 0
> >end_request: I/O error, dev fd0, sector 0
> >Buffer I/O error on device fd0, logical block 0
> >end_request: I/O error, dev fd0, sector 0
> >Buffer I/O error on device fd0, logical block 0
> >-----
> >
> >Wow. All of the fd0 error messages I saw when I initially ran grub.
> >Here's a problem, though: grub goes through its errors and then gives me
> >an interface to work in. grub-install, which should give me some sort of
> >status, just keeps spitting these errors out. I have to CTRL+C to get out
> >of it.
> >
> >I can mount it off the livecd (which it presently is), so it's not
> >hopeless for retrieving data off of, but this situation has me bothered.
> >Optimally, I'd like to get it back up and booting properly. Failing that,
> >I'd like some sort of advice as to what to do (older SCSI drives, older
> >IDE drive, etc).
> >
> >So....can anyone help me? :)
> >
> >--
> >William Sutton
> >--
> >TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
> >TriLUG Organizational FAQ : http://trilug.org/faq/
> >TriLUG Member Services FAQ : http://members.trilug.org/services_faq/
>
>
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