NeilBrown: Update man page info about files used by mdmon
Martin F. Krafft
madduck at alioth.debian.org
Sun Aug 29 11:55:14 UTC 2010
Module: mdadm
Branch: fixes/udev-blkid
Commit: 9fdcb4719238195c0f29aa60fdd76f5b77fe074b
URL: http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=commit;h=9fdcb4719238195c0f29aa60fdd76f5b77fe074b
Author: NeilBrown <neilb at suse.de>
Date: Wed Jul 28 17:12:35 2010 +1000
Update man page info about files used by mdmon
A recent patch changed the location of files used by
mdmon, so update man page to match.
Signed-off-by: NeilBrown <neilb at suse.de>
---
mdmon.8 | 30 ++++++++++++------------------
1 files changed, 12 insertions(+), 18 deletions(-)
diff --git a/mdmon.8 b/mdmon.8
index 0c24732..e9a8ba9 100644
--- a/mdmon.8
+++ b/mdmon.8
@@ -200,23 +200,20 @@ as required. This means that
.I mdmon
must be installed on the
.B initramfs
-and there must be a writable filesystem (typically tmpfs) which
+and there must be a writable filesystem (typically tmpfs) in which
.B mdmon
can create a
.B .pid
and
.B .sock
-file on. The particular filesystem to use is given to mdmon at compile
+file. The particular filesystem to use is given to mdmon at compile
time and defaults to
.BR /dev/.mdadm .
-This filesystem must persist through to the end of the boot sequence.
+This filesystem must persist through to shutdown time.
After the final root filesystem has be instantiated (usually with
.BR pivot_root )
-and after
-.B /var
-is mounted writable,
.I mdmon
should be run with
.I "\-\-all \-\-takeover"
@@ -224,20 +221,17 @@ so that the
.I mdmon
running from the
.B initramfs
-can be replaced with one running in the main root.
+can be replaced with one running in the main root, and so the
+memory used by the initramfs can be released.
At shutdown time,
.I mdmon
should not be killed along with other processes. Also as it holds a
file (socket actually) open in
-.B /var
-it will not be possible to unmount
-.B /var
-if it is a separate filesystem. Rather the
-.B /var
-filesystem, like the root filesystem, should be remounted read-only.
-
-
+.B /dev
+(by default) it will not be possible to unmount
+.B /dev
+if it is a separate filesystem.
.SH EXAMPLES
@@ -246,9 +240,9 @@ filesystem, like the root filesystem, should be remounted read-only.
Any
.I mdmon
which is currently running is killed and a new instance is started.
-This should be run late in the boot sequence and particularly after
-.B /var
-is mounted and writable.
+This should be run during in the boot sequence if an initramfs was
+used, so that any mdmon running from the initramfs will not hold
+the initramfs active.
.SH SEE ALSO
.IR mdadm (8),
.IR md (4).
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