Phase 5 - Check Cyl Groups - Sun Microsystems Sun Workstation 100U System Manager's Manual

Fsck Error Conditions
Fsck - UNIX File System Checker
system. When preen'ing, the count is fixed.
Possible responses to the FIX prompt are:
YES
replace the count in the super-block by the actual count.
NO ignore this error condition.
A.S. Phase
5 -
Check Cyl Groups
This phase concerns itselr with the rree-block maps. This section lists error conditions resulting
rrom allocated blocks in the free-block maps, rree blocks missing rrom rree-block maps, and the
total rree-block count incorrect.
cg C: bad magic number
The magic number or cylinder group C is wrong. This usually indicates that the cylinder group
maps have been destroyed. When running manually the cylinder group is marked as needing to
be reconstructed. This error is ratal ir the file system is being preen'ed.
EXCESSIVE BAD BLKS IN BIT MAPS (CONTINUE)
An inode contains more than a tolerable number (usually 10) or blocks claimed by other inodes
or that are out or the legal range ror the file system. This error is ratal ir the file system is
being preen' ed.
Possible responses to the CONTINUE prompt are:
YES
ignore the rest of the free-block maps and continue the execution or
I.ek.
NO terminate the program.
SUMMARY INFORMATION T BAD
where T is one or more or:
(INODE FREE)
(BLOCK OFFSETS)
(FRAG SUMMARIES)
(SUPER BLOCK SUMMARIES)
The indicated summary inrormation was round to be incorrect. This error condition will always
invoke the BAD CYLINDER GROUPS condition in Phase 6. When preen'ing, the summary
inrormation is recomputed.
X
BLK(S) MISSING
X blocks unused by the file system were not round in the rree-block maps. This error condition
will always invoke the BAD CYLINDER GROUPS condition in Phase 6. When preen'ing,
the block maps are rebuilt.
BAD CYLINDER GROUPS (SALVAGE)
Phase
5
has found bad blocks in the free-block maps, duplicate blocks in the rree-block maps, or
blocks missing rrom the file system. When preen'ing, the cylinder groups are recoIl8tructed.
Possible responses to the SALVAGE prompt are:
18 28 July 1983