Hello On Mon, 2005-04-18 at 17:11, Mahmoud Al Gammal wrote: > This actually helped..thanks a ot. > But wouldn't it be useful to keep replicas of the superblock? > IIRC, ext3 does that. >
reiserfs is frozen more or less. It gets bug fixes only. reiser4 has something like copies of super block. > Vladimir Saveliev writes: > > > Hello > > > > On Mon, 2005-04-18 at 13:08, Vladimir Saveliev wrote: > >> Hello > >> > >> On Sat, 2005-04-16 at 23:13, Mahmoud Al Gammal wrote: > >> > Hello, > >> > I'm using ReiserFS 3.6.19 on a partition whose superblock has > >> > been swept away due to a sudden attack of bad sectors. I'm > >> > wondering if ReiserFS keeps backup copies of the superblock...If > >> > yes, then where? > >> > >> no, it does not > >> > >> > Or is there some other means to retrieve the > >> > data? > >> > > >> > >> copy partition with bad blocks to a good one with dd_rescue > >> > >> reiserfsck --build-sb /dev/good-partition (use default answers if you > >> did not do anything specific with that filesystem like converting 3.5 to > >> 3.6, journal relocation, etc) > > > > There can be a problem with number of blocks. reiserfsck --build-sb will > > ask for that, I think. > > You should be able to calculate number of blocks in broken filesystem > > with mkreiserfs /dev/bad-partition. It will report you something like > > Count of blocks on the device: 4096560 > > among other lines and ask to continue. > > DO NOT LET IT TO CONTINUE. Use this block number in answers to > > reiserfsck --build-sb. > > > >> reiserfsck --rebuild-tree /dev/good-partition > >> > >> If this helps you - you may take a look at namesys.com/support.html > >> > >> > > > >
