Phase 4: Check Reference Counts Messages (System Administration Guide: Advanced Administration)

System Administration Guide: Advanced Administration

Phase 4: Check Reference Counts Messages

This phase checks the link count information obtained in phases 2 and 3. It reports error conditions resulting from:

Unreferenced files
A missing or full lost+found directory
Incorrect link counts for files, directories, symbolic links, or special files
Unreferenced files, symbolic links, and directories
Bad or duplicate fragments in files and directories

Solaris 10:

Bad or duplicate blocks in files and directories
Incorrect total free-inode counts

All errors in this phase (except running out of space in the lost+found directory) are correctable when the file system is being preened.

These messages (in alphabetical order) might occur in phase 4:

BAD/DUP type I=inode-number OWNER=UID MODE=file-mode SIZE=file-size 
MTIME=modification-time (CLEAR)

Cause

Phase 1 or phase 1B found duplicate fragments or bad fragments associated with file or directory inode inode-number. The owner UID, mode file-mode, size file-size, and modification time modification-time of inode inode-number are displayed.

Solaris 10:

Phase 1 or phase 1B found duplicate blocks or bad blocks associated with file or directory inode inode-number. The owner UID, mode file-mode, size file-size, and modification time modification-time of inode inode-number are displayed.

Action

To deallocate inode inode-number by zeroing its contents, type y at the CLEAR prompt. To ignore this error condition, type n.

(CLEAR)

Cause: The inode mentioned in the UNREF error message immediately preceding cannot be reconnected. This message does not display if the file system is being preened because lack of space to reconnect files terminates fsck.
Action: To deallocate the inode by zeroing out its contents, type y at the CLEAR prompt. To ignore the preceding error condition, type n.

LINK COUNT type I=inode-number OWNER=UID MODE=file-mode 
SIZE=file-size
MTIME=modification-time COUNT link-count SHOULD BE 
corrected-link-count (ADJUST)

Cause: The link count for directory or file inode inode-number is link-count but should be corrected-link-count. The owner UID, mode file-mode, size file-size, and modification time modification-time of inode inode-number are displayed. If the -o p option is specified, the link count is adjusted unless the number of references is increasing. This condition does not occur unless there is a hardware failure. When the number of references is increasing during preening, fsck displays this message and exits: LINK COUNT INCREASING
Action: To replace the link count of directory or file inode inode-number with corrected-link-count, type y at the ADJUST prompt. To ignore this error condition, type n.

lost+found IS NOT A DIRECTORY (REALLOCATE)

Cause: The entry for lost+found is not a directory.
Action: To allocate a directory inode and change the lost+found directory to reference it, type y at the REALLOCATE prompt. The previous inode reference by the lost+found directory is not cleared. It will either be reclaimed as an unreferenced inode or have its link count adjusted later in this phase. Inability to create a lost+found directory displays this message: SORRY. CANNOT CREATE lost+found DIRECTORY and aborts the attempt to link up the lost inode. This error generates the UNREF error message later in phase 4. To abort the attempt to link up the lost inode, type n.

NO lost+found DIRECTORY (CREATE)

Cause: There is no lost+found directory in the root directory of the file system. When preening, fsck tries to create a lost+found directory.
Action: To create a lost+found directory in the root of the file system, type y at the CREATE prompt. If the lost+found directory cannot be created, fsck displays the message: SORRY. CANNOT CREATE lost+found DIRECTORY and aborts the attempt to link up the lost inode. This error in turn generates the UNREF error message later in phase 4. To abort the attempt to link up the lost inode, type n.

NO SPACE LEFT IN / lost+found (EXPAND)

Cause: There is no space to add another entry to the lost+found directory in the root directory of the file system. When preening, fsck expands the lost+found directory.
Action: To expand the lost+found directory to make room for the new entry, type y at the EXPAND prompt. If the attempted expansion fails, fsck displays the message: SORRY. NO SPACE IN lost+found DIRECTORY and aborts the request to link a file to the lost+found directory. This error generates the UNREF error message later in phase 4. Delete any unnecessary entries in the lost+found directory. This error terminates fsck when preening (-o p option) is in effect. To abort the attempt to link up the lost inode, type n.

UNREF FILE I=inode-number OWNER=UID MODE=file-mode SIZE=file-size 
MTIME=modification-time (RECONNECT)

Cause: File inode inode-number was not connected to a directory entry when the file system was traversed. The owner UID, mode file-mode, size file-size, and modification time modification-time of inode inode-number are displayed. When fsck is preening, the file is cleared if either its size or its link count is zero; otherwise, it is reconnected.
Action: To reconnect inode inode-number to the file system in the lost+found directory, type y. This error might generate the lost+found error message in phase 4 if there are problems connecting inode inode-number to the lost+found directory. To ignore this error condition, type n. This error always invokes the CLEAR error condition in phase 4.

UNREF type I=inode-number OWNER=UID MODE=file-mode SIZE=file-size 
MTIME=modification-time (CLEAR)

Cause: Inode inode-number (whose type is directory or file) was not connected to a directory entry when the file system was traversed. The owner UID, mode file-mode, size file-size, and modification time modification-time of inode inode-number are displayed. When fsck is preening, the file is cleared if either its size or its link count is zero; otherwise, it is reconnected.
Action: To deallocate inode inode-number by zeroing its contents, type y at the CLEAR prompt. To ignore this error condition, type n.

ZERO LENGTH DIRECTORY I=inode-number OWNER=UID MODE=file-mode 
SIZE=file-size MTIME=modification-time(CLEAR)

Cause: A directory entry filename has a size file-size that is zero. The owner UID, mode file-mode, size file-size, modification time modification-time, and directory name filename are displayed.
Action: To deallocate the directory inode inode-number by zeroing out its contents, type y. To ignore the error condition, type n.