| View previous topic :: View next topic |
| Author |
Message |
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
 Posted: Fri Mar 12, 2004 1:41 pm Post subject: Crash --> Kernel Panic ReiserFS |
 |
|
Here's the story:
I tried to mount a cd-rom which caused my whole system to freeze (btw: I'm using Gentoo Linux, not MS Windows...). I had to shutdown the pc the hard way. After rebooting (Kernel 2.6.something) I got this error:
| Code: | | Kernel panic: VFS: Unable to mount rootfs on hde6 |
Booting with Kernel 2.4.something gave me this one:
| Code: | FAT: bogus logical sector size 0
read_super_block: can't find a reiserfs filesystem on (dev 21:06, block 64, size 1024)
read_super_block: can't find a reiserfs filesystem on (dev 21:06, block 8, size 1024)
Kernel panic: VFS: Unable to mount root fs on 21:06 |
So I assume, my reiserfs is screwed up, right? Is there a way to fix this? |
|
| Back to top |
|
 |
wolfpakk
n00b
Joined: 19 Feb 2004
Posts: 28
Location: sundsvall, sweden
|
| Posted: Fri Mar 12, 2004 2:04 pm Post subject: |
|
|
Is hde6 your root partition? If not, then u can try to pass some commandline options in grub/lilo. The reason i ask is just because hde6 is not the most usual partition to have a rootfs on, therefore i ask  |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Fri Mar 12, 2004 5:38 pm Post subject: |
|
|
| Yes, it is. |
|
| Back to top |
|
|
nevynxxx
Veteran
Joined: 12 Nov 2003
Posts: 1123
Location: Manchester - UK
|
| Posted: Fri Mar 12, 2004 5:40 pm Post subject: |
|
|
It's more frequent to get that if reiserfs is not compiled into the kernel, but that seems like a long shot in your situation. I would try booting a live or knoppix cd and see if you can mount from there, either should have some tools to help and if not, you can grab them from knoppix.
_________________
My Public Key
Wanted: Instructor in the art of Bowyery |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Fri Mar 12, 2004 6:05 pm Post subject: |
|
|
This really don't think that it is a kernel issue because it used to work for month.
I took the hd out of the pc and I am ready to put it into my other gentoo based pc. Ready to Rock'n'Roll. What tools do I need? |
|
| Back to top |
|
|
nevynxxx
Veteran
Joined: 12 Nov 2003
Posts: 1123
Location: Manchester - UK
|
| Posted: Fri Mar 12, 2004 6:13 pm Post subject: |
|
|
| Tim77 wrote: | This really don't think that it is a kernel issue because it used to work for month.
I took the hd out of the pc and I am ready to put it into my other gentoo based pc. Ready to Rock'n'Roll. What tools do I need? |
emmm reiserfsck is a good place to start, the help is good.
_________________
My Public Key
Wanted: Instructor in the art of Bowyery |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Fri Mar 12, 2004 6:38 pm Post subject: |
|
|
| Quote: | | This really don't think that it is a kernel issue |
What did I wrote..? 
Some additional information. Now I put it in the 2nd pc and from now on the disk shall be known as "hdd". fdisk tells me this:
| Code: | Gerät Boot Start End Blocks Id System
/dev/hdd1 * 1 1305 10482381 c W95 FAT32 (LBA)
/dev/hdd2 1306 2610 10482412+ f W95 Ext'd (LBA)
/dev/hdd3 2611 4960 18876375 c W95 FAT32 (LBA)
/dev/hdd4 4961 7475 20201737+ c W95 FAT32 (LBA)
/dev/hdd5 1306 1318 104391 83 Linux
/dev/hdd6 1319 2545 9855846 83 Linux
/dev/hdd7 2546 2610 522081 82 Linux Swap |
This means, that the "root" drive we are talking about is now hdd6, right?
| Code: | root [/dev] # reiserfsck /dev/hdd6
reiserfsck 3.6.11 (2003 www.namesys.com)
*************************************************************
** If you are using the latest reiserfsprogs and it fails **
** please email bug reports to reiserfs-list@namesys.com, **
** providing as much information as possible -- your **
** hardware, kernel, patches, settings, all reiserfsck **
** messages (including version), the reiserfsck logfile, **
** check the syslog file for any related information. **
** If you would like advice on using this program, support **
** is available for $25 at www.namesys.com/support.html. **
*************************************************************
Will read-only check consistency of the filesystem on /dev/hdd6
Will put log info to 'stdout'
Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
reiserfs_open: the reiserfs superblock cannot be found on /dev/hdd6.
Failed to open the filesystem.
If the partition table has not been changed, and the partition is
valid and it really contains a reiserfs partition, then the
superblock is corrupted and you need to run this utility with
--rebuild-sb.
Abgebrochen
root [/dev] #
|
I guess | Code: | | reiserfsck --rebuild-sb /dev/hdd6 |
will be the next line. But I better ask first... |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Fri Mar 12, 2004 7:45 pm Post subject: |
|
|
| Quote: | | What did I wrote..? |
reiserfsck is asking me strange questions: How do I know the block size? It suggests 4096. |
|
| Back to top |
|
|
nevynxxx
Veteran
Joined: 12 Nov 2003
Posts: 1123
Location: Manchester - UK
|
| Posted: Fri Mar 12, 2004 7:47 pm Post subject: |
|
|
Looks like the rebuild is the only way. I have done this to a live partition and I think a rebuild tree after or some such, I got the whole thing back, it shouldn't be too big a deal. Then again, with filesystems there is alweays the chance of loosing all the data.
Your call, but I'd go for it.
_________________
My Public Key
Wanted: Instructor in the art of Bowyery |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Fri Mar 12, 2004 8:48 pm Post subject: |
|
|
So I did it:
| Code: | root [/dev] # reiserfsck --rebuild-sb /dev/hdd6
reiserfsck 3.6.11 (2003 www.namesys.com)
*************************************************************
** If you are using the latest reiserfsprogs and it fails **
** please email bug reports to reiserfs-list@namesys.com, **
** providing as much information as possible -- your **
** hardware, kernel, patches, settings, all reiserfsck **
** messages (including version), the reiserfsck logfile, **
** check the syslog file for any related information. **
** If you would like advice on using this program, support **
** is available for $25 at www.namesys.com/support.html. **
*************************************************************
Will check superblock and rebuild it if needed
Will put log info to 'stdout'
Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
reiserfs_open: the reiserfs superblock cannot be found on /dev/hdd6.
what the version of ReiserFS do you use[1-4]
(1) 3.6.x
(2) >=3.5.9 (introduced in the middle of 1999) (if you use linux 2.2, choose this one)
(3) < 3.5.9 converted to new format (don't choose if unsure)
(4) < 3.5.9 (this is very old format, don't choose if unsure)
(X) exit
1
Enter block size [4096]:
No journal device was specified. (If journal is not available, re-run with --no-journal-available option specified).
Is journal default? (y/n)[y]: y
Did you use resizer(y/n)[n]: n
rebuild-sb: no uuid found, a new uuid generated (9274c0fe-bb22-4f1f-bfbb-a2e95196eb9d)
rebuild-sb: You either have a corrupted journal or have just changed
the start of the partition with some partition table editor. If you are
sure that the start of the partition is ok, rebuild the journal header.
Do you want to rebuild the journal header? (y/n)[n]: y
Reiserfs super block in block 16 on 0x1646 of format 3.6 with standard journal
Count of blocks on the device: 2463961
Number of bitmaps: 76
Blocksize: 4096
Free blocks (count of blocks - used [journal, bitmaps, data, reserved] blocks): 0
Root block: 0
Filesystem is NOT cleanly umounted
Tree height: 0
Hash function used to sort names: not set
Objectid map size 0, max 972
Journal parameters:
Device [0x0]
Magic [0x0]
Size 8193 blocks (including 1 for journal header) (first block 18)
Max transaction length 1024 blocks
Max batch size 900 blocks
Max commit age 30
Blocks reserved by journal: 0
Fs state field: 0x1:
some corruptions exist.
sb_version: 2
inode generation number: 0
UUID: 9274c0fe-bb22-4f1f-bfbb-a2e95196eb9d
LABEL:
Set flags in SB:
Is this ok ? (y/n)[n]: y
The fs may still be unconsistent. Run reiserfsck --check.
|
But now it checks for 45 minutes without any output:
| Code: | root [/dev] # reiserfsck /dev/hdd6
reiserfsck 3.6.11 (2003 www.namesys.com)
*************************************************************
** If you are using the latest reiserfsprogs and it fails **
** please email bug reports to reiserfs-list@namesys.com, **
** providing as much information as possible -- your **
** hardware, kernel, patches, settings, all reiserfsck **
** messages (including version), the reiserfsck logfile, **
** check the syslog file for any related information. **
** If you would like advice on using this program, support **
** is available for $25 at www.namesys.com/support.html. **
*************************************************************
Will read-only check consistency of the filesystem on /dev/hdd6
Will put log info to 'stdout'
Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
###########
reiserfsck --check started at Fri Mar 12 21:02:13 2004
###########
Replaying journal..
|
Is this normal? |
|
| Back to top |
|
|
nevynxxx
Veteran
Joined: 12 Nov 2003
Posts: 1123
Location: Manchester - UK
|
| Posted: Fri Mar 12, 2004 9:32 pm Post subject: |
|
|
Hmmm not sure about the 45 mins without output thing. Is that 45 mins bfore you gave up, before it stopped or before you posted? Once its stopped you will be able to tell if it worked by mounting it and a few 'ls' 's
_________________
My Public Key
Wanted: Instructor in the art of Bowyery |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Fri Mar 12, 2004 9:46 pm Post subject: |
|
|
After waiting 45 minutes and really nothing happened, I rebooted the pc... I couldn't even stop reiserfsck by ctrl+c or "kill -9 <id>". And this happens every time I try to "reiserfsck /dev/hdd6".
Mounting also doesn't work:
| Code: | root [/home/tim] # mount -t reiserfs /dev/hdd6 /lagerhalle
mount: Falscher Dateisystemtyp, ungültige Optionen, der
»Superblock« von /dev/hdd6 ist beschädigt oder es sind
zu viele Dateisysteme eingehängt
root [/home/tim] # |
Which means "Wrong file system, invalid options, corrupted superblock or too many mounted file systems."
Perhaps the following information help?
| Code: | root [/home/tim] # reiserfsck --rebuild-sb /dev/hdd6
reiserfsck 3.6.11 (2003 www.namesys.com)
*************************************************************
** If you are using the latest reiserfsprogs and it fails **
** please email bug reports to reiserfs-list@namesys.com, **
** providing as much information as possible -- your **
** hardware, kernel, patches, settings, all reiserfsck **
** messages (including version), the reiserfsck logfile, **
** check the syslog file for any related information. **
** If you would like advice on using this program, support **
** is available for $25 at www.namesys.com/support.html. **
*************************************************************
Will check superblock and rebuild it if needed
Will put log info to 'stdout'
Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
Reiserfs super block in block 16 on 0x1646 of format 3.6 with standard journal
Count of blocks on the device: 2463961
Number of bitmaps: 76
Blocksize: 4096
Free blocks (count of blocks - used [journal, bitmaps, data, reserved] blocks): 0
Root block: 0
Filesystem is NOT cleanly umounted
Tree height: 0
Hash function used to sort names: not set
Objectid map size 0, max 972
Journal parameters:
Device [0x0]
Magic [0x0]
Size 8193 blocks (including 1 for journal header) (first block 18)
Max transaction length 1024 blocks
Max batch size 900 blocks
Max commit age 30
Blocks reserved by journal: 0
Fs state field: 0x1:
some corruptions exist.
sb_version: 2
inode generation number: 0
UUID: 9274c0fe-bb22-4f1f-bfbb-a2e95196eb9d
LABEL:
Set flags in SB:
Super block seems to be correct
root [/home/tim] #
|
I rebuildt the superblock, but I don't know if it was ok to choose the default size of 4096 blocks. |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Sat Mar 13, 2004 7:02 am Post subject: |
|
|
| Is there no one who can help me with this? |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Sat Mar 13, 2004 10:06 am Post subject: |
|
|
Now I tried reiserfsck version 3.6.13:
| Code: | root [/home/tim] # reiserfsck --rebuild-sb /dev/hdd6
reiserfsck 3.6.13 (2003 www.namesys.com)
*************************************************************
** If you are using the latest reiserfsprogs and it fails **
** please email bug reports to reiserfs-list@namesys.com, **
** providing as much information as possible -- your **
** hardware, kernel, patches, settings, all reiserfsck **
** messages (including version), the reiserfsck logfile, **
** check the syslog file for any related information. **
** If you would like advice on using this program, support **
** is available for $25 at www.namesys.com/support.html. **
*************************************************************
Will check superblock and rebuild it if needed
Will put log info to 'stdout'
Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
Did you use resizer(y/n)[n]: n
rebuild-sb: wrong block count occured (2463961), fixed (2463952)
Reiserfs super block in block 16 on 0x1646 of format 3.6 with standard journal
Count of blocks on the device: 2463952
Number of bitmaps: 76
Blocksize: 4096
Free blocks (count of blocks - used [journal, bitmaps, data, reserved] blocks): 0
Root block: 0
Filesystem marked as NOT cleanly umounted
Tree height: 0
Hash function used to sort names: not set
Objectid map size 0, max 972
Journal parameters:
Device [0x0]
Magic [0x0]
Size 8193 blocks (including 1 for journal header) (first block 18)
Max transaction length 1024 blocks
Max batch size 900 blocks
Max commit age 30
Blocks reserved by journal: 0
Fs state field: 0x1:
some corruptions exist.
sb_version: 2
inode generation number: 0
UUID: 9274c0fe-bb22-4f1f-bfbb-a2e95196eb9d
LABEL:
Set flags in SB:
Is this ok ? (y/n)[n]: y
The fs may still be unconsistent. Run reiserfsck --check.
root [/home/tim] # reiserfsck --check /dev/hdd6
reiserfsck 3.6.13 (2003 www.namesys.com)
*************************************************************
** If you are using the latest reiserfsprogs and it fails **
** please email bug reports to reiserfs-list@namesys.com, **
** providing as much information as possible -- your **
** hardware, kernel, patches, settings, all reiserfsck **
** messages (including version), the reiserfsck logfile, **
** check the syslog file for any related information. **
** If you would like advice on using this program, support **
** is available for $25 at www.namesys.com/support.html. **
*************************************************************
Will read-only check consistency of the filesystem on /dev/hdd6
Will put log info to 'stdout'
Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
###########
reiserfsck --check started at Sat Mar 13 11:03:45 2004
###########
Replaying journal..
|
And it runs endlessly...  |
|
| Back to top |
|
|
borh
Tux's lil' helper
Joined: 24 Nov 2002
Posts: 89
Location: Ljubljana
|
| Posted: Sat Mar 13, 2004 12:52 pm Post subject: |
|
|
You could also check for hard disk damage with
| Code: | | # badblocks -s /dev/hdd6 |
(you might want to use the -c flag to increase the scanning speed). |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Sat Mar 13, 2004 1:08 pm Post subject: |
|
|
It says something like
| Code: | | Scanning for defective blocks (read-only-mode): 0 / 9855846 |
And it hangs. Nothing happens, only the cursor blinks... |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Sat Mar 13, 2004 3:50 pm Post subject: |
|
|
| Code: | root [/home/tim] # badblocks -sc /dev/hdd6
badblocks: bad simultaneous block count - /dev/hdd6 |
So what does this mean? |
|
| Back to top |
|
|
Tim77
Apprentice
Joined: 13 May 2003
Posts: 211
Location: Germany
|
| Posted: Sat Mar 13, 2004 8:17 pm Post subject: |
|
|
No ideas? Do I really have to reinstall my whole root-partition? Hey boys and girls, this is Linux! No f**ing Windows FAT/NTFS crap. I switched to linux to AVOID these things...  |
|
| Back to top |
|
|
nevynxxx
Veteran
Joined: 12 Nov 2003
Posts: 1123
Location: Manchester - UK
|
| Posted: Sun Mar 14, 2004 7:43 pm Post subject: |
|
|
If your getting hands on all the programs trying to access the hard disk, i'd say it's a hardware problem. So the os is not really at fault. Try looking at the hard drive manufacturors website for a tool to low level check the drive. If that says its ok, then try again with the reiser tools, but I'd bet it will say its dead.
_________________
My Public Key
Wanted: Instructor in the art of Bowyery |
|
| Back to top |
|
|
|
Kernel & Hardware
