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Commit e3375ac7 authored by Pavel Machek's avatar Pavel Machek Committed by Jiri Kosina
Browse files

trivial: document ext3 semantics of 'ro' option a bit better 



ext3 has quite unexpected semantics or "ro" and defaults are
not what they are documented to be, due to mkfs override.

Signed-off-by: default avatarPavel Machek <pavel@suse.cz>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 0d34fb8e

Documentation/filesystems/ext3.txt

+12 −2
Original line number Diff line number Diff line
@@ -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 journal device's major/minor numbers 
			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.