Sun Microsystems Sun Workstation 100U System Manager's Manual page 186

FSCK(S)
MAINTENANCE COMMANDS
FSCK(S)
Inconsistencies checked are as follows:
1. Blocks claimed by more than one inode or the tree list.
2. Blocks claimed by an inode or the free list outside the range of the file system.
3.
Incorrect link counts.
4. Size checks:
Directory size not of proper format.
S. Bad inode format.
6. Blocks not accounted tor anywhere.
7. Directory checks:
File pointing to unallocated inode.
Inode number out
ot
range.
S. Super Block checks:
More blocks tor inodes than there are in the file system.
9. Bad free block list format.
10. Total free block and/or free inode count incorrect.
Orphaned files and directories (allocated but unreferenced) are, with the operator's concurrence,
reconnected by placing them in the lost+tound directory. The name assigned is the inode
number. The only restriction is that the directory
lost+tound
must preexist in the root of the
filesystem being checked and must have empty slots in which entries can be made. This is
accomplished by making
lost+tound,
copying a number
ot
files to the directory, and then
removing them (before IBck is executed).
Checking the raw device is almost always faster.
/etc/tstab contains detault list
ot
file systems to check.
DIAGNOSTICS
The diagnostics produced by lack are intended to be self-explanatory.
SEE ALSO
BUGS
tstab(5), ts(5), newts(8), mkts(8), crash(8S), reboot(8)
Inode numbers for. and.. in each directory should be checked tor validity.
There should be some way to start a
tsek
-p at pass n.
Sun Release 1.1
Last change:
4
February 1983 31