Sistema de Arquivos Reiserfs Corrompido

Começou a ocorrer erros estranhos na minha instalação do Gentoo. Eu não podia alterar a hora do sistema ou abrir o Konsole, que recebia uma mensagem dizendo que o sistema de arquivos seria somente leitura. Mas como o sistema de arquivos root poderia ser somente leitura?
Reiniciei e entrei na minha outra distro pra rodar o reiserfsck.



root@linux:/home/thiago# reiserfsck /dev/sda2
reiserfsck 3.6.19 (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/sda2
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 Aug 29 12:08:33 2009
###########
Replaying journal..
Reiserfs journal '/dev/sda2' in blocks [18..8211]: 0 transactions replayed
Checking internal tree../ 1 (of 5)/ 55 (of 146)/ 90 (of 162)block 511249: The number of items (49) is incorrect, should be (44)
the problem in the internal node occured (511249), whole subtree is skipped
finished
Comparing bitmaps..vpf-10640: The on-disk and the correct bitmaps differs.
Bad nodes were found, Semantic pass skipped
1 found corruptions can be fixed only when running with --rebuild-tree
###########
reiserfsck finished at Sat Aug 29 12:19:35 2009
###########


Veja a mensagem abaixo, mostrada pelo comando "sugerido". Ela encoraja a usá-lo ou desanima?
Mas como meu sistema de arquivos estava inutilizável, e eu faço sincronizo meus dados mais importantes com o pendrive, decidi arriscar. Veja a saída do "rebuild tree" abaixo.


root@linux:/home/thiago# reiserfsck --rebuild-tree /dev/sda2
reiserfsck 3.6.19 (2003 www.namesys.com)

*************************************************************
** Do not run the program with --rebuild-tree unless **
** something is broken and MAKE A BACKUP before using it. **
** If you have bad sectors on a drive it is usually a bad **
** idea to continue using it. Then you probably should get **
** a working hard drive, copy the file system from the bad **
** drive to the good one -- dd_rescue is a good tool for **
** that -- and only then run this program. **
** 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 rebuild the filesystem (/dev/sda2) tree
Will put log info to 'stdout'

Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes
Replaying journal..
Reiserfs journal '/dev/sda2' in blocks [18..8211]: 0 transactions replayed
###########
reiserfsck --rebuild-tree started at Sat Aug 29 12:27:23 2009
###########

Pass 0:
####### Pass 0 #######
Loading on-disk bitmap .. ok, 4102100 blocks marked used
Skipping 8348 blocks (super block, journal, bitmaps) 4093752 blocks will be read
0%...block 511249: The number of items (49) is incorrect, should be (44) - corrected
block 511249: The free space (65428) is incorrect, should be (272) - corrected
.20%....40%....block 2659991: The number of items (4864) is incorrect, should be (1) - corrected
block 2659991: The free space (17168) is incorrect, should be (4048) - corrected
pass0: vpf-10210: block 2659991, item 0: The item with wrong offset or length found [1124073616 4997411 0x443000091921500 DRCT (2)], len 0 - deleted
60%....80%.block 3767806: The number of items (34) is incorrect, should be (1) - corrected
block 3767806: The free space (0) is incorrect, should be (208) - corrected
pass0: vpf-10110: block 3767806, item (0): Unknown item type found [738197760 100663296 0x100 ??? (15)] - deleted
...100% left 0, 948 /sec
471878 directory entries were hashed with "r5" hash.
"r5" hash is selected
Flushing..finished
Read blocks (but not data blocks) 4093752
Leaves among those 102883
- leaves all contents of which could not be saved and deleted 2
Objectids found 473918

Pass 1 (will try to insert 102881 leaves):
####### Pass 1 #######
Looking for allocable blocks .. finished
0%....20%....40%....60%....80%....100% left 0, 102 /sec
Flushing..finished
102881 leaves read
101989 inserted
892 not inserted
####### Pass 2 #######

Pass 2:
0%....20%....40%....60%....80%....100% left 0, 63 /sec
Flushing..finished
Leaves inserted item by item 892
Pass 3 (semantic):
####### Pass 3 #########
/rootrebuild_semantic_pass: The entry [937791 2116061] (".ooo3") in directory [2 937791] points to nowhere - is removed
/rootrebuild_semantic_pass: The entry [937791 1641346] (".xauthmcM6zY") in directory [2 937791] points to nowhere - is removed
/rootrebuild_semantic_pass: The entry [937791 2116129] (".xauth6yTJqP") in directory [2 937791] points to nowhere - is removed
vpf-10650: The directory [2 937791] has the wrong size in the StatData (2904) - corrected to (2816)
Flushing..finished
Files found: 407305
Directories found: 44901
Symlinks found: 8954
Others: 5161
Names pointing to nowhere (removed): 3
Pass 3a (looking for lost dir/files):
####### Pass 3a (lost+found pass) #########
Looking for lost directories:
/2116061_2121082get_next_directory_item: The entry ".." of the directory [2116061 2121082] pointes to [937791 2116061], instead of [2 6] - corrected
Looking for lost files:3 /sec
rewrite_file: 1 items of file [937791 1388584] moved to [937791 7]
rewrite_file: 2 items of file [937791 1388676] moved to [937791 8]
Flushing..finished
Objects without names 3
Dirs linked to /lost+found: 1
Files linked to /lost+found 2
Objects having used objectids: 2
files fixed 2
Pass 4 - finished done 102553, 85 /sec
Deleted unreachable items 1
Flushing..finished
Syncing..finished
###########
reiserfsck finished at Sat Aug 29 14:16:18 2009
###########


Levou entre duas e três horas para que o processo terminasse, mas minha instalação, aparentemente está normal agora.

Gcompris sem som

Após instalar a versão mais recente do Gcompris no Gentoo, ela não apresentava som.
Obviamente não se tratava de um bug do programa, apenas um plugin necessário para o som, que deveria ser instalado automaticamente e não foi. Bastou:

#emerge gst-plugins-alsa

E o problema foi resolvido.