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   xfs_repair    ( 8 )

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Диагностика (Diagnostic)

xfs_repair issues informative messages as it proceeds indicating what it has found that is abnormal or any corrective action that it has taken. Most of the messages are completely understandable only to those who are knowledgeable about the structure of the filesystem. Some of the more common messages are explained here. Note that the language of the messages is slightly different if xfs_repair is run in no-modify mode because the program is not changing anything on disk. No-modify mode indicates what it would do to repair the filesystem if run without the no-modify flag.

disconnected inode ino, moving to lost+found

An inode numbered ino was not connected to the filesystem directory tree and was reconnected to the lost+found directory. The inode is assigned the name of its inode number (ino). If a lost+found directory does not exist, it is automatically created.

disconnected dir inode ino, moving to lost+found

As above only the inode is a directory inode. If a directory inode is attached to lost+found, all of its children (if any) stay attached to the directory and therefore get automatically reconnected when the directory is reconnected.

imap claims in-use inode ino is free, correcting imap

The inode allocation map thinks that inode ino is free whereas examination of the inode indicates that the inode may be in use (although it may be disconnected). The program updates the inode allocation map.

imap claims free inode ino is in use, correcting imap

The inode allocation map thinks that inode ino is in use whereas examination of the inode indicates that the inode is not in use and therefore is free. The program updates the inode allocation map.

resetting inode ino nlinks from x to y

The program detected a mismatch between the number of valid directory entries referencing inode ino and the number of references recorded in the inode and corrected the the number in the inode.

fork-type fork in ino ino claims used block bno

Inode ino claims a block bno that is used (claimed) by either another inode or the filesystem itself for metadata storage. The fork-type is either data or attr indicating whether the problem lies in the portion of the inode that tracks regular data or the portion of the inode that stores XFS attributes. If the inode is a real-time (rt) inode, the message says so. Any inode that claims blocks used by the filesystem is deleted. If two or more inodes claim the same block, they are both deleted.

fork-type fork in ino ino claims dup extent ...

Inode ino claims a block in an extent known to be claimed more than once. The offset in the inode, start and length of the extent is given. The message is slightly different if the inode is a real-time (rt) inode and the extent is therefore a real-time (rt) extent.

inode ino - bad extent ...

An extent record in the blockmap of inode ino claims blocks that are out of the legal range of the filesystem. The message supplies the start, end, and file offset of the extent. The message is slightly different if the extent is a real-time (rt) extent.

bad fork-type fork in inode ino

There was something structurally wrong or inconsistent with the data structures that map offsets to filesystem blocks.

cleared inode ino

There was something wrong with the inode that was uncorrectable so the program freed the inode. This usually happens because the inode claims blocks that are used by something else or the inode itself is badly corrupted. Typically, this message is preceded by one or more messages indicating why the inode needed to be cleared.

bad attribute fork in inode ino, clearing attr fork

There was something wrong with the portion of the inode that stores XFS attributes (the attribute fork) so the program reset the attribute fork. As a result of this, all attributes on that inode are lost.

correcting nextents for inode ino, was x - counted y

The program found that the number of extents used to store the data in the inode is wrong and corrected the number. The message refers to nextents if the count is wrong on the number of extents used to store attribute information.

entry name in dir dir_ino not consistent with .. value (xxxx) in dir ino ino, junking entry name in directory inode dir_ino

The entry name in directory inode dir_ino references a directory inode ino. However, the .. entry in directory ino does not point back to directory dir_ino, so the program deletes the entry name in directory inode dir_ino. If the directory inode ino winds up becoming a disconnected inode as a result of this, it is moved to lost+found later.

entry name in dir dir_ino references already connected dir ino ino, junking entry name in directory inode dir_ino

The entry name in directory inode dir_ino points to a directory inode ino that is known to be a child of another directory. Therefore, the entry is invalid and is deleted. This message refers to an entry in a small directory. If this were a large directory, the last phrase would read "will clear entry".

entry references free inode ino in directory dir_ino, will clear entry

An entry in directory inode dir_ino references an inode ino that is known to be free. The entry is therefore invalid and is deleted. This message refers to a large directory. If the directory were small, the message would read "junking entry ...".