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| author | Karel Zak | 2009-01-06 14:39:58 +0100 |
|---|---|---|
| committer | Karel Zak | 2009-01-06 14:39:58 +0100 |
| commit | 370dc7a23e0c115d05821e79855ac88f7d1ff242 (patch) | |
| tree | 04da2118acb5d5651de190a97df5fe3d463568dc /mount/mount.8 | |
| parent | namei: fix buffer overflow (diff) | |
| download | kernel-qcow2-util-linux-370dc7a23e0c115d05821e79855ac88f7d1ff242.tar.gz kernel-qcow2-util-linux-370dc7a23e0c115d05821e79855ac88f7d1ff242.tar.xz kernel-qcow2-util-linux-370dc7a23e0c115d05821e79855ac88f7d1ff242.zip | |
mount: add info about semantics of read-only mount to mount.8
Reported-by: Joachim Wagner <jwagner@computing.dcu.ie>
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'mount/mount.8')
| -rw-r--r-- | mount/mount.8 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mount/mount.8 b/mount/mount.8 index 50655f0be..bbbbd33a8 100644 --- a/mount/mount.8 +++ b/mount/mount.8 @@ -424,6 +424,12 @@ autofs\-based automounter. .B \-r Mount the file system read-only. A synonym is .BR "\-o ro" . + +Note that, depending on the filesystem type, state and kernel behavior, the +system may still write to the device. For example, Ext3 will replay its journal +if the filesystem is dirty. To prevent this kind of write access, you may want +to map the device through a read-only loop device, see command +.BR losetup (8). .TP .B \-w Mount the file system read/write. This is the default. A synonym is |