On May 09, 2009 14:36 -0400, Don Bowman wrote: > To follow my own email, the results of the 'findsuper' program are: > > starting at 0, with 512 byte increments > byte_offset byte_start byte_end fs_blocks blksz grp last_mount_time sb_uuid label > 1024 0 6001228775424 1465143744 4096 0 Wed Apr 22 19:04:50 2009 52e18bf7 > 134217728 0 6001228775424 1465143744 4096 1 Wed Apr 22 19:04:50 2009 52e18bf7 > 402653184 0 6001228775424 1465143744 4096 3 Wed Apr 22 19:04:50 2009 52e18bf7 > 671088640 0 6001228775424 1465143744 4096 5 Wed Apr 22 19:04:50 2009 52e18bf7 > 939524096 0 6001228775424 1465143744 4096 7 Wed Apr 22 19:04:50 2009 52e18bf7 > 1207959552 0 6001228775424 1465143744 4096 9 Wed Apr 22 19:04:50 2009 52e18bf7 > 3355443200 0 6001228775424 1465143744 4096 25 Wed Apr 22 19:04:50 2009 52e18bf7 > 3623878656 0 6001228775424 1465143744 4096 27 Wed Apr 22 19:04:50 2009 52e18bf7 > 6576668672 0 6001228775424 1465143744 4096 49 Wed Apr 22 19:04:50 2009 52e18bf7 > 10871635968 0 6001228775424 1465143744 4096 81 Wed Apr 22 19:04:50 2009 52e18bf7 > 16777216000 0 6001228775424 1465143744 4096 125 Wed Apr 22 19:04:50 2009 52e18bf7 > 32614907904 0 6001228775424 1465143744 4096 243 Wed Apr 22 19:04:50 2009 52e18bf7 > 46036680704 0 6001228775424 1465143744 4096 343 Wed Apr 22 19:04:50 2009 52e18bf7 > 83886080000 0 6001228775424 1465143744 4096 625 Wed Apr 22 19:04:50 2009 52e18bf7 > 97844723712 0 6001228775424 1465143744 4096 729 Wed Apr 22 19:04:50 2009 52e18bf7 > ... [still going] > > Can this help me somehow? These are all showing available backup superblocks and group descriptors. Pick one of the "grp" numbers and use that as the argument for "-b" per my previous email: "e2fsck -f -b $((729 * 32768)) -B 4096 /dev/XXX". A backup first is still a good idea, however. Note that this appears to be a bug that has been hit by several Ubuntu users. I would suggest to upgrade to the latest vanilla kernel (at least 2.6.29.stable, search the archives for details), which has fixed it for many users. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
