On Mon 2009-01-05 09:57:13, Theodore Tso wrote: > On Sun, Jan 04, 2009 at 11:34:33PM +0100, Pavel Machek wrote: > > @@ -14,6 +14,11 @@ Options > > When mounting an ext3 filesystem, the following option are accepted: > > (*) == default > > > > +ro Mount filesystem read only. Note that ext3 will replay > > + the journal (and thus write to the partition) even when > > + mounted "read only". "ro, noload" can be used to prevent > > + writes to the filesystem. > > I'd sugest "ro,noload" since the spaces screw up the mount options > parsing both on the command-line and in /etc/fstab. So how about: > > Using the mount options "ro,noload" can be used.... Too many "using", but yes, fixed, thanks. > > @@ -95,6 +102,8 @@ debug Extra debugging information is s > > errors=remount-ro(*) Remount the filesystem read-only on an error. > > errors=continue Keep going on a filesystem error. > > errors=panic Panic and halt the machine if an error occurs. > > + (Note that default is overriden by superblock > > + setting on most systems). > > The default is always specified by the superblock setting. So users > will probably find it easier to understand if we remove the "(*)" and > to add the explanatory comment: > > (These mount options override the errors behavior > specified in the superblock, which can be configured > using tune2fs) > > Pavel, thanks for working on improving the documentation; with these > fixes, Thanks! --- ext3 has quite unexpected semantics or "ro" and defaults are not what they are documented to be, due to mkfs override. Signed-off-by: Pavel Machek <pavel@xxxxxxx> Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx> diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt index 9dd2a3b..49c08bf 100644 --- a/Documentation/filesystems/ext3.txt +++ b/Documentation/filesystems/ext3.txt @@ -14,6 +14,11 @@ Options When mounting an ext3 filesystem, the following option are accepted: (*) == default +ro Mount filesystem read only. Note that ext3 will replay + the journal (and thus write to the partition) even when + mounted "read only". Mount options "ro,noload" can be + used to prevent writes to the filesystem. + journal=update Update the ext3 file system's journal to the current format. @@ -27,7 +32,9 @@ journal_dev=devnum When the external jou identified through its new major/minor numbers encoded in devnum. -noload Don't load the journal on mounting. +noload Don't load the journal on mounting. Note that this forces + mount of inconsistent filesystem, which can lead to + various problems. data=journal All data are committed into the journal prior to being written into the main file system. @@ -92,9 +99,12 @@ nocheck debug Extra debugging information is sent to syslog. -errors=remount-ro(*) Remount the filesystem read-only on an error. +errors=remount-ro Remount the filesystem read-only on an error. errors=continue Keep going on a filesystem error. errors=panic Panic and halt the machine if an error occurs. + (These mount options override the errors behavior + specified in the superblock, which can be + configured using tune2fs.) data_err=ignore(*) Just print an error message if an error occurs in a file data buffer in ordered mode. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
