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Author Topic: (SOLVED) Got "Error 21" message when in GRUB  (Read 2167 times)

Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #30 on: September 08, 2012, 04:19:39 PM »
Thanks again, Old-Polack, I think I'm making slow progress.  I deleted the suspect directories from /dev/hdb1 as you directed.  I think I might be back to where I started.  ;)

Upon looking at what was in each individual directory, I noticed a couple of lines out of the #ls -l /here/boot command.  I really don't know what this means, but thought you might look at it and see if it's possible that this might have something to do with the error 15 I got.

lrwxrwxrwx 1 root root      20 Sep  2 20:37 config -> config-2.6.26.8.tex3

lrwxrwxrwx 1 root root      28 Sep  2 20:37 kernel.h -> /boot/kernel.h-2.6.26.8.tex3
-rw-r--r-- 1 root root    1493 Sep  2 20:37 kernel.h-2.6.26.8.tex3

BTW, I got my 512 MB RAM card and installed it today.  I'm hoping that will help me get up and running when we get this error 15 problem solved.  ;D

Batzilla
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Offline Old-Polack

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Re: Got "Error 21" message when in GRUB
« Reply #31 on: September 08, 2012, 06:10:36 PM »
Quote from: batzilla on September 08, 2012, 04:19:39 PM
Thanks again, Old-Polack, I think I'm making slow progress.  I deleted the suspect directories from /dev/hdb1 as you directed.  I think I might be back to where I started.  ;)

Upon looking at what was in each individual directory, I noticed a couple of lines out of the #ls -l /here/boot command.  I really don't know what this means, but thought you might look at it and see if it's possible that this might have something to do with the error 15 I got.

lrwxrwxrwx 1 root root      20 Sep  2 20:37 config -> config-2.6.26.8.tex3

lrwxrwxrwx 1 root root      28 Sep  2 20:37 kernel.h -> /boot/kernel.h-2.6.26.8.tex3
-rw-r--r-- 1 root root    1493 Sep  2 20:37 kernel.h-2.6.26.8.tex3

BTW, I got my 512 MB RAM card and installed it today.  I'm hoping that will help me get up and running when we get this error 15 problem solved.  ;D

Batzilla

Those are normal files to find in /boot and nothing to worry about. What we need to look at next is the menu.lst entries, and a few other things after that. One thing at a time.

[root@localhost ~]# cat /here/boot/grub/menu.lst             <Enter>

Post your results.
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Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #32 on: September 08, 2012, 06:28:16 PM »
[root@localhost guest]# cat /here/boot/grub/menu.lst
timeout 10
color black/cyan yellow/cyan
gfxmenu (hd0,0)/boot/gfxmenu
default 0

title linux
kernel (hd0,0)/boot/vmlinuz BOOT_IMAGE=linux root=UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72  acpi=on resume=UUID=41ebc2ae-888e-497f-9de2-b7de288a1053 splash=silent vga=788
initrd (hd0,0)/boot/initrd.img

title linux-nonfb
kernel (hd0,0)/boot/vmlinuz BOOT_IMAGE=linux-nonfb root=UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72  acpi=on resume=UUID=41ebc2ae-888e-497f-9de2-b7de288a1053
initrd (hd0,0)/boot/initrd.img

title failsafe
kernel (hd0,0)/boot/vmlinuz BOOT_IMAGE=failsafe root=UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72  failsafe acpi=on
initrd (hd0,0)/boot/initrd.img
[root@localhost guest]#
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Offline Old-Polack

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Re: Got "Error 21" message when in GRUB
« Reply #33 on: September 08, 2012, 06:51:26 PM »
Quote from: batzilla on September 08, 2012, 06:28:16 PM
[root@localhost guest]# cat /here/boot/grub/menu.lst
timeout 10
color black/cyan yellow/cyan
gfxmenu (hd0,0)/boot/gfxmenu
default 0

title linux
kernel (hd0,0)/boot/vmlinuz BOOT_IMAGE=linux root=UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72  acpi=on resume=UUID=41ebc2ae-888e-497f-9de2-b7de288a1053 splash=silent vga=788
initrd (hd0,0)/boot/initrd.img

title linux-nonfb
kernel (hd0,0)/boot/vmlinuz BOOT_IMAGE=linux-nonfb root=UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72  acpi=on resume=UUID=41ebc2ae-888e-497f-9de2-b7de288a1053
initrd (hd0,0)/boot/initrd.img

title failsafe
kernel (hd0,0)/boot/vmlinuz BOOT_IMAGE=failsafe root=UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72  failsafe acpi=on
initrd (hd0,0)/boot/initrd.img
[root@localhost guest]#


OK, next one;

[root@localhost ~]# blkid                             <Enter>

This will give a current list of partition UUID numbers to compare to what the entries in menu.lst are looking for.

Post your results.
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Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #34 on: September 08, 2012, 06:54:08 PM »
[root@localhost guest]# blkid
/dev/sr0: LABEL="U3 System" TYPE="iso9660"
/dev/hda1: SEC_TYPE="msdos" LABEL="DellUtility" UUID="07D2-0907" TYPE="vfat"
/dev/hdc: LABEL="livecd 2009120809:21" TYPE="iso9660"
/dev/hda2: UUID="5A90AF8E90AF6EE7" TYPE="ntfs"
/dev/hdb1: UUID="eda7fcdf-0131-48f7-9c47-40ec0027fe72" TYPE="ext3"
/dev/hdb5: UUID="41ebc2ae-888e-497f-9de2-b7de288a1053" TYPE="swap"
/dev/hdb6: UUID="14a6d388-3ccc-48ad-9bf2-b5e78c5a13b2" TYPE="ext3"
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="39fa7716-5c40-4282-a900-bd4ca562bf17" TYPE="ext2"
/dev/sda2: UUID="9cb2a9e3-644b-4985-8a85-2a0cc52a86c9" SEC_TYPE="ext2" TYPE="ext3"
[root@localhost guest]#   
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Offline Old-Polack

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Re: Got "Error 21" message when in GRUB
« Reply #35 on: September 09, 2012, 01:00:40 AM »
Quote from: batzilla on September 08, 2012, 06:54:08 PM
[root@localhost guest]# blkid
/dev/sr0: LABEL="U3 System" TYPE="iso9660"
/dev/hda1: SEC_TYPE="msdos" LABEL="DellUtility" UUID="07D2-0907" TYPE="vfat"
/dev/hdc: LABEL="livecd 2009120809:21" TYPE="iso9660"
/dev/hda2: UUID="5A90AF8E90AF6EE7" TYPE="ntfs"
/dev/hdb1: UUID="eda7fcdf-0131-48f7-9c47-40ec0027fe72" TYPE="ext3"
/dev/hdb5: UUID="41ebc2ae-888e-497f-9de2-b7de288a1053" TYPE="swap"
/dev/hdb6: UUID="14a6d388-3ccc-48ad-9bf2-b5e78c5a13b2" TYPE="ext3"
/dev/loop0: TYPE="squashfs"
/dev/sda1: UUID="39fa7716-5c40-4282-a900-bd4ca562bf17" TYPE="ext2"
/dev/sda2: UUID="9cb2a9e3-644b-4985-8a85-2a0cc52a86c9" SEC_TYPE="ext2" TYPE="ext3"
[root@localhost guest]#   

Those look good too.

Now I want to see what's in the /here/boot directory, as far as the kernel and initrd images are concerned.

[root@localhost guest]# ls -l /here/boot |grep vm                                 <Enter>

[root@localhost guest]# ls -l /here/boot |grep init                                 <Enter>

Post your results.
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Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #36 on: September 09, 2012, 10:20:53 AM »
[root@localhost guest]# ls -l /here/boot |grep vm
lrwxrwxrwx 1 root root      21 Jun 15  2010 vmlinuz -> vmlinuz-2.6.26.8.tex3
-rw-r--r-- 1 root root 1800688 Jan 12  2009 vmlinuz-2.6.26.8.tex3
[root@localhost guest]# ls -l /here/boot |grep init
-rw------- 1 root root 2303677 Jun 15  2010 initrd-2.6.26.8.tex3.img
lrwxrwxrwx 1 root root      24 Jun 15  2010 initrd.img -> initrd-2.6.26.8.tex3.img
[root@localhost guest]#
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Offline Old-Polack

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Re: Got "Error 21" message when in GRUB
« Reply #37 on: September 09, 2012, 12:43:41 PM »
Quote from: batzilla on September 09, 2012, 10:20:53 AM
[root@localhost guest]# ls -l /here/boot |grep vm
lrwxrwxrwx 1 root root      21 Jun 15  2010 vmlinuz -> vmlinuz-2.6.26.8.tex3
-rw-r--r-- 1 root root 1800688 Jan 12  2009 vmlinuz-2.6.26.8.tex3
[root@localhost guest]# ls -l /here/boot |grep init
-rw------- 1 root root 2303677 Jun 15  2010 initrd-2.6.26.8.tex3.img
lrwxrwxrwx 1 root root      24 Jun 15  2010 initrd.img -> initrd-2.6.26.8.tex3.img
[root@localhost guest]#


The kernel size and date matches mine for the same installation. Your initrd image is slightly smaller, but that's to be expected as they are custom built for the specific machine at installation time. The important thing is that the links exist and point to the right places.

Next, I want to see the fstab file to see how the partitions are being asked to mount.

[root@localhost guest]# cat /here/etc/fstab                             <Enter>

Post your results.
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Old-Polack

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Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #38 on: September 09, 2012, 01:09:53 PM »
[root@localhost guest]# cat /here/etc/fstab
# Entry for /dev/hdb1 :
UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72 / ext3 defaults 1 1
# Entry for /dev/hdb6 :
UUID=14a6d388-3ccc-48ad-9bf2-b5e78c5a13b2 /home ext3 defaults 1 2
none /proc proc defaults 0 0
# Entry for /dev/hdb5 :
UUID=41ebc2ae-888e-497f-9de2-b7de288a1053 swap swap defaults 0 0
none /dev/pts devpts mode=0620 0 0
[root@localhost guest]#
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Offline Old-Polack

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Re: Got "Error 21" message when in GRUB
« Reply #39 on: September 09, 2012, 01:51:28 PM »
Quote from: batzilla on September 09, 2012, 01:09:53 PM
[root@localhost guest]# cat /here/etc/fstab
# Entry for /dev/hdb1 :
UUID=eda7fcdf-0131-48f7-9c47-40ec0027fe72 / ext3 defaults 1 1
# Entry for /dev/hdb6 :
UUID=14a6d388-3ccc-48ad-9bf2-b5e78c5a13b2 /home ext3 defaults 1 2
none /proc proc defaults 0 0
# Entry for /dev/hdb5 :
UUID=41ebc2ae-888e-497f-9de2-b7de288a1053 swap swap defaults 0 0
none /dev/pts devpts mode=0620 0 0
[root@localhost guest]#


Everything looks good, so it's time to unmount the partition and run the fsck on it; this time with a proper command. ;D

[root@localhost guest]# umount -a                        <Enter>

Note: There is no n following the initial u in the umount command. It is correct as written. You will again see the message about / being busy. That's normal.

[root@localhost guest]# fsck -fy /dev/hdb1                     <Enter>

Post your results.
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Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #40 on: September 09, 2012, 02:04:06 PM »
[root@localhost guest]# fsck -fy /dev/hdb1
fsck from util-linux-ng 2.16
e2fsck 1.41.9 (22-Aug-2009)
Pass 1: Checking inodes, blocks, and sizes
Error reading block 1114151 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114152 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114153 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114154 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114155 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114313 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/hdb1: 155939/512064 files (0.5% non-contiguous), 1018851/2046271 blocks
[root@localhost guest]#   
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Offline Old-Polack

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Re: Got "Error 21" message when in GRUB
« Reply #41 on: September 09, 2012, 02:14:28 PM »
Quote from: batzilla on September 09, 2012, 02:04:06 PM
[root@localhost guest]# fsck -fy /dev/hdb1
fsck from util-linux-ng 2.16
e2fsck 1.41.9 (22-Aug-2009)
Pass 1: Checking inodes, blocks, and sizes
Error reading block 1114151 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114152 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114153 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114154 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114155 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 1114313 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/hdb1: 155939/512064 files (0.5% non-contiguous), 1018851/2046271 blocks
[root@localhost guest]#   

I just knew we were going to find some nasty crap there. ;D ;D

Just to be safe, while we are at it, How about we run the fsck on the /home partition?

[root@localhost guest]# fsck -fy /dev/hdb6                          <Enter>

Odds are that it's clean, but with loose connections, you can never tell exactly what may have occurred. Better to be overly cautious.  ;)
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Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #42 on: September 09, 2012, 04:13:19 PM »
[root@localhost guest]# fsck -fy /dev/hdb6
fsck from util-linux-ng 2.16
e2fsck 1.41.9 (22-Aug-2009)
Pass 1: Checking inodes, blocks, and sizes
Error reading block 524763 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 524764 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/hdb6: 10209/37552128 files (15.0% non-contiguous), 2379342/75073745 blocks
[root@localhost guest]#         
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Batzilla

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Offline Old-Polack

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Re: Got "Error 21" message when in GRUB
« Reply #43 on: September 09, 2012, 04:34:07 PM »
Quote from: batzilla on September 09, 2012, 04:13:19 PM
[root@localhost guest]# fsck -fy /dev/hdb6
fsck from util-linux-ng 2.16
e2fsck 1.41.9 (22-Aug-2009)
Pass 1: Checking inodes, blocks, and sizes
Error reading block 524763 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Error reading block 524764 (Attempt to read block from filesystem resulted in short read) while getting next inode from scan.  Ignore error? yes

Force rewrite? yes

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/hdb6: 10209/37552128 files (15.0% non-contiguous), 2379342/75073745 blocks
[root@localhost guest]#         

Now it's fun time again. Time to try booting to the installed system again.

Remember, all the changes made while we worked from the liveCD, like the mount points /here and /there, only existed in memory, so they will be lost. If the system boots up properly, you are good to go. If it still doesn't boot, and you want to backup your personal data from the liveCD, we'll have to do the preliminary creating of directories and mounting the partitions from scratch. No big deal, just a FYI heads up.  ;D

Let us know what happens.  ;D
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Offline batzilla

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Re: Got "Error 21" message when in GRUB
« Reply #44 on: September 09, 2012, 05:09:59 PM »
 >:( Well, drat!  I got the error 15 again.  >:(

I'm back on the LiveCD.  What do I do now, Coach?

Batzilla
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Batzilla

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