reiser filesystem crashed

reiser filesystem crashed

[Usuario Jose]

Hi, friends:

My copmputer has a hard disk with the following partition schema:


	/dev/hda1		windows backup
	/dev/hda2		windows xp ntfs

/dev/hda3		win95 ext'd (LBA)
	/dev/hda5		linux swap
	/dev/hda6		linux  - resiserfs

The linux partition crashed (my suspicions are after opening a 5MB pdf file). 
Following are the messages given by reiserfsck:


#reiserfs --check /dev/hda6
Bad root block 4294967295 

#reiserfs --rebuild-tree /dev/hda6
.....
Pass 0:
##### Pass 0 #####
Loading on-disk bitmap .. ok, 963801 blocks marqued used
Skipping 8406 blocks (superblock, journal.....) 955395 blocks will be read
0%                                                      left  955077, 318 /sec
bread: Cannot read a block # 13236

Aborted

#reiserfsck --rebuild-sb /dev/hda6  ----> OK
#reiserfs --rebuild-tree /dev/hda6    -------->  same error as above.


The information in the linux partition is very important, so:
- Is there any way to recover it, to rebuild to filesystem or whatever?

Any help would be appreciated.

Thanks in advance.

Re: reiser filesystem crashed

[E. Gryaznova]

Hello,
could you please answer on the following questions :
1. what kernel version do you use?
2. what reiserfsprogs version du you use?
3. did you use fdisk for resizing /dev/hda6 ?

Thanks,
Lena

> Hi, friends:

> My copmputer has a hard disk with the following partition schema:


>        /dev/hda1               windows backup
>        /dev/hda2               windows xp ntfs

> /dev/hda3               win95 ext'd (LBA)
>        /dev/hda5               linux swap
>        /dev/hda6               linux  - resiserfs

> The linux partition crashed (my suspicions are after opening a 5MB pdf
file).
> Following are the messages given by reiserfsck:


> #reiserfs --check /dev/hda6
> Bad root block 4294967295

> #reiserfs --rebuild-tree /dev/hda6
> .....
> Pass 0:
> ##### Pass 0 #####
> Loading on-disk bitmap .. ok, 963801 blocks marqued used
> Skipping 8406 blocks (superblock, journal.....) 955395 blocks will be
read
> 0%                                                      left  955077,
318 /sec
> bread: Cannot read a block # 13236

> Aborted

> #reiserfsck --rebuild-sb /dev/hda6  ----> OK
> #reiserfs --rebuild-tree /dev/hda6    -------->  same error as above.


> The information in the linux partition is very important, so:
> - Is there any way to recover it, to rebuild to filesystem or
whatever?

> Any help would be appreciated.

> Thanks in advance.

Re: reiser filesystem crashed

[Vitaly Fertman]

On Thursday 13 November 2003 14:33, Usuario Jose wrote:
> Hi, friends:
>
> My copmputer has a hard disk with the following partition schema:
>
>
> 	/dev/hda1		windows backup
> 	/dev/hda2		windows xp ntfs
>
> /dev/hda3		win95 ext'd (LBA)
> 	/dev/hda5		linux swap
> 	/dev/hda6		linux  - resiserfs
>
> The linux partition crashed (my suspicions are after opening a 5MB pdf
> file). Following are the messages given by reiserfsck:
>
>
> #reiserfs --check /dev/hda6
> Bad root block 4294967295
>
> #reiserfs --rebuild-tree /dev/hda6
> .....
> Pass 0:
> ##### Pass 0 #####
> Loading on-disk bitmap .. ok, 963801 blocks marqued used
> Skipping 8406 blocks (superblock, journal.....) 955395 blocks will be read
> 0%                                                      left  955077, 318
> /sec bread: Cannot read a block # 13236

it seems you use pretty old reiserfsprogs version. update it please.
this message means there are unreadable blocks on the fs.
read our bad block faq 
    www.namesys.com/bad-block-handling.html
if you need our assistance please visit 
    www.namesys.com/support.html

-- 
Thanks,
Vitaly Fertman