| reiserfsck - check a Linux Reiserfs file system |
| reiserfsck [ -afprVy ] [ --check | --fix-fixable | --rebuild-sb | --rebuild-tree | --clean-attributes ] [ -j | --journal-device device ] [ --no-journal-available ] [ -z | --adjust-file-size ] [ -S | --scan-whole-partition ] [ -l | --logfile filename ] [ -n | --nolog ] [ -q | --quiet ] device |
| Reiserfsck searches for a Reiserfs filesystem on a device, replays any necessary transactions, and either checks or repairs the file system. |
| device |
| is the special file corresponding to the device or partition (e.g /dev/hdXX for IDE disk partition or /dev/sdXX for SCSI disk partition). |
| --check |
| This default action checks file system consistency and reports but does not repair any corruption that it finds. This option may be used on a read-only file system mount. The --check option exits with status 0 to indicate that no corruption was found. Otherwise, reiserfsck returns 1 to indicate corruption that can be fixed with --fix-fixable and 2 to indicate corruption that requires --rebuild-tree. |
| --fix-fixable |
| This option recovers certain kinds of corruption that do not require rebuilding the entire file system tree (--rebuild-tree). Normally you only need this option if the --check option reports "corruption that can be fixed with --fix-fixable". This includes: zeroing invalid data-block pointers, correcting st_size and st_blocks for directories, and deleting invalid directory entries. |
| --rebuild-sb |
| This option recovers the superblock on a Reiserfs partition. Normally you only need this option if mount reports "read_super_block: can't find a reiserfs file system" and you are sure that a Reiserfs file system is there. |
| --rebuild-tree |
| This option rebuilds the entire file system tree using leaf nodes found on the device. Normally you only need this option if the --check option reports "corruption that can be fixed only during --rebuild-tree". You are strongly encouraged to make a backup copy of the whole partition before attempting the --rebuild-tree option. |
| --clean-attributes |
| This option cleans reserved fields of Stat-Data items. |
| --journal-device device , -j device |
| This option supplies the device name of the current file system journal. This option is required when the journal resides on a separate device from the main data device (although it can be avoided with the expert option --no-journal-available). |
| --adjust-file-size, -z |
| This option causes reiserfsck to correct file sizes that are larger than the offset of the last discovered byte. This implies that holes at the end of a file will be removed. File sizes that are smaller than the offset of the last discovered byte are corrected by --fix-fixable. |
| --logfile filename, -l filename |
| This option causes reiserfsck to report any corruption it finds to the specified log file rather than stderr. |
| --nolog, -n |
| This option prevents reiserfsck from reporting any kinds of corruption. |
| --quiet, -q |
| This option prevents reiserfsck from reporting its rate of progress. |
| -a, -p |
| These options are usually passed by fsck -A during the automatic checking of those partitions listed in /etc/fstab. These options cause reiserfsck to print some information about the specified file system, check if error flags in the superblock are set and do some light-weight checks. If these checks reveal a corruption or the flag indicating a (possibly fixable) corruption is found set in the superblock, then reiserfsck switches to the fix-fixable mode. If the flag indicating a fatal corruption is found set in the superblock, then reiserfsck finishes with an error. |
| -V |
| This option prints the reiserfsprogs version and exit. |
| -r, -p, -y |
| These options are ignored. |
| -V, -f |
| prints version and exits |
| DO NOT USE THESE OPTIONS UNLESS YOU KNOW WHAT YOU ARE DOING. WE ARE NOT RESPONSIBLE IF YOU LOSE DATA AS A RESULT OF THESE OPTIONS. |
| --no-journal-available |
| This option allows reiserfsck to proceed when the journal device is not available. This option has no effect when the journal is located on the main data device. NOTE: after this operation you must use reiserfstune to specify a new journal device. |
| --scan-whole-partition, -S |
| This option causes --rebuild-tree to scan the whole partition, not only used space on the partition. |
| 1. You think something may be wrong with a reiserfs partition on /dev/hda1 or you would just like to perform a periodic disk check. |
| 2. Run reiserfsck --check --logfile check.log /dev/hda1. If reiserfsck --check exits with status 0 it means no errors were discovered. |
| 3. If reiserfsck --check exits with status 1 (and reports about fixable corruptions) it means that you should run reiserfsck --fix-fixable --logfile fixable.log /dev/hda1. |
| 4. If reiserfsck --check exits with status 2 (and reports about fatal corruptions) it means that you need to run reiserfsck --rebuild-tree. If reiserfsck --check fails in some way you should also run reiserfsck --rebuild-tree, but we also encourage you to submit this as a bug report. |
| 5. Before running reiserfsck --rebuild-tree, please make a backup of the whole partition before proceeding. Then run reiserfsck --rebuild-tree --logfile rebuild.log /dev/hda1. |
|
6. If the --rebuild-tree step fails or does not
recover what you expected, please submit this as a bug
report. Try to provide as much information as possible and
we will try to help solve the problem. SH EXIT CODES
eiserfsck uses the following exit codes: 0 - No errors. 1 - Errors found, esierfsck --fix-fixable needs to be launched. 2 - Errors found, esierfsck --rebuild-tree needs to be launched. 8 - Operational error. 16 - Usage or syntax error. |
| This version of reiserfsck has been written by Vitaly Fertman <vitaly@namesys.com> and Vladimir Saveliev <vs@namesys.com>. |
| There are likely to be some bugs. Please report bugs to the ReiserFS mail-list <reiserfs-list@namesys.com>. |
| Faster recovering, signal handling, i/o error handling, return reasonable exit codes, etc. |
| mkreiserfs(8), debugreiserfs(8), reiserfstune(8) |