svn commit: r350682 - in head/sbin: fsck_ffs newfs

[Kirk McKusick]

Author: mckusick
Date: Wed Aug  7 16:56:00 2019
New Revision: 350682
URL: https://svnweb.freebsd.org/changeset/base/350682

Log:
  Correct the location of the first backup superblock in fsck_ffs.8.
  Make a note in the newfs.8 manual page to update the first backup
  superblock location when changing the default fragment size for
  the filesystem.
  
  Reported by:  O. Hartmann

Modified:
  head/sbin/fsck_ffs/fsck_ffs.8
  head/sbin/newfs/newfs.8

Modified: head/sbin/fsck_ffs/fsck_ffs.8
==============================================================================
--- head/sbin/fsck_ffs/fsck_ffs.8	Wed Aug  7 16:42:34 2019	(r350681)
+++ head/sbin/fsck_ffs/fsck_ffs.8	Wed Aug  7 16:56:00 2019	(r350682)
@@ -153,7 +153,7 @@ exits without attempting any further cleaning.
 Use the block specified immediately after the flag as
 the super block for the file system.
 An alternate super block is usually located at block 32 for UFS1,
-and block 160 for UFS2.
+and block 192 for UFS2.
 .Pp
 See the
 .Fl N

Modified: head/sbin/newfs/newfs.8
==============================================================================
--- head/sbin/newfs/newfs.8	Wed Aug  7 16:42:34 2019	(r350681)
+++ head/sbin/newfs/newfs.8	Wed Aug  7 16:56:00 2019	(r350682)
@@ -111,6 +111,9 @@ for more details on how to set this option.
 .It Fl b Ar block-size
 The block size of the file system, in bytes.
 It must be a power of 2.
+.\" If changing the default block size and it causes the default
+.\" fragment size to change, be sure to update the location of
+.\" the first backup superblock on the fsck_ffs.8 manual page.
 The
 default size is 32768 bytes, and the smallest allowable size is 4096 bytes.
 The optimal block:fragment ratio is 8:1.
@@ -143,6 +146,9 @@ ranging in value between
 .Ar blocksize Ns /8
 and
 .Ar blocksize .
+.\" If changing the default fragment size or it changes because of a
+.\" change to the default block size, be sure to update the location
+.\" of the first backup superblock on the fsck_ffs.8 manual page.
 The default is 4096 bytes.
 .It Fl g Ar avgfilesize
 The expected average file size for the file system.