On Fri, May 28, 2004 at 02:28:08AM -0400, Alexy Khrabrov wrote: > > I'd like to recover some files from a huge reiserfs file system. It is > created above an LVM volume, which in its turn sits on a RAID. The LVM > volume is the only one in a group which consists of the sole RAID device. > I just deleted two files in a directory I know by name, the directory is > still there. No writing was done after the rm, except all files copied > elsewhere and diff -r'ed checked, hope that does not alter the originals. > > Now I'd like to play with the dd copying of the whole reiserfs (I'm > avoiding the word partition since it covers the whole logical volume > which spans the whole RAID device). I simply do not have space to copy > the whole RAID, but the size of the used space on this reiserfs volume was > under about 9 GB. I wonder how can I copy just about that -- I assume it > fills the logical volume contiguously, so I can dd the first 9 GB and then > try the loopback mount/rebuild. Now that I'm running it, it scrolls lines > > pass0: reading block 20626210 failed > > like crazy, perhaps up to the whole 150 GB original size declared > somewhere...
yes, it is declared in the reiserfs superblock. > > Can I use resize_reiserfs on the loopback before running rebuild? > Are there LVM methods to shrink it/copy just the used blocks in > conjunction with reiserfs? Before our reiserfsck master answers I can suggest reiserfsck --rebuild-sb, it re-creates superblock and can change the declared fs size. I hope your file was on the first 9 GB. Then run "reiserfsck --rebuild-tree --scan-whole-partition" and look at lost+found dir for your file. > > Just curious... > > -- > Cheers, > Alexy Khrabrov :: www.setup.org :: Age Quod Agis -- Alex.
