.BR e2fsck 's
behavior.
.TP
+.I [defaults]
+Contains relations which define the default parameters used by
+.BR e2fsck (8).
+In general, these defaults may be overridden by command-line options
+provided by the user.
+.TP
.I [problems]
This stanza allows the administrator to reconfigure how e2fsck handles
various filesystem inconsistencies.
.I log_dir
If the
.I log_filename
-relation contains a relative pathname, then the log file will be placed
+or
+.I problem_log_filename
+relations contains a relative pathname, then the log file will be placed
in the directory named by the
.I log_dir
relation.
If this boolean relation is true, do not offer to optimize the extent
tree by reducing the tree's width or depth. This setting defaults to false.
.TP
+.I problem_log_filename
+This relation specifies the file name where a log of problem codes
+found by e2fsck be written. The filename may contain various
+percent-expressions (%D, %T, %N,
+etc.) which will be expanded so that the file name for the log file can
+include things like date, time, device name, and other run-time
+parameters. See the
+.B LOGGING
+section for more details.
+.TP
.I readahead_mem_pct
Use this percentage of memory to try to read in metadata blocks ahead of the
main e2fsck thread. This should reduce run times, depending on the speed of
.B -v
is always specified. This will cause e2fsck to print some additional
information at the end of each full file system check.
+.SH THE [defaults] STANZA
+The following relations are defined in the
+.I [defaults]
+stanza.
+.TP
+.I undo_dir
+This relation specifies the directory where the undo file should be
+stored. It can be overridden via the
+.B E2FSPROGS_UNDO_DIR
+environment variable. If the directory location is set to the value
+.IR none ,
+.B e2fsck
+will not create an undo file.
.SH THE [problems] STANZA
Each tag in the
.I [problems]
@TDB_MAN_COMMENT@.TP
@TDB_MAN_COMMENT@.I numdirs_threshold
@TDB_MAN_COMMENT@If this relation is set, then in-memory data structures
-@TDB_MAN_COMMENT@be used if the number of directories in the filesystem
+@TDB_MAN_COMMENT@will be used if the number of directories in the filesystem
@TDB_MAN_COMMENT@are fewer than amount specified.
@TDB_MAN_COMMENT@.TP
@TDB_MAN_COMMENT@.I dirinfo