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Commit 6ccd5194 authored by Jan Kara's avatar Jan Kara
Browse files

udf: Update mount option documentation 



Update documentation of uid and gid mount options.

Reviewed-by: default avatarPali Rohár <pali.rohar@gmail.com>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 116e5258

Documentation/filesystems/udf.txt

+7 −11
Original line number Original line Diff line number Diff line
@@ -36,18 +36,14 @@ The following mount options are supported: 
	iocharset=	Set the NLS character set

	iocharset=	Set the NLS character set





The uid= and gid= options need a bit more explaining.  They will accept a

The uid= and gid= options need a bit more explaining.  They will accept a

decimal numeric value which will be used as the default ID for that mount.

decimal numeric value and all inodes on that mount will then appear as

They will also accept the string "ignore" and "forget".  For files on the disk

belonging to that uid and gid.  Mount options also accept the string "forget".

that are owned by nobody ( -1 ), they will instead look as if they are owned

The forget option causes all IDs to be written to disk as -1 which is a way

by the default ID.  The ignore option causes the default ID to override all

of UDF standard to indicate that IDs are not supported for these files .

IDs on the disk, not just -1.  The forget option causes all IDs to be written

to disk as -1, so when the media is later remounted, they will appear to be

owned by whatever default ID it is mounted with at that time.





For typical desktop use of removable media, you should set the ID to that

For typical desktop use of removable media, you should set the ID to that of

of the interactively logged on user, and also specify both the forget and

the interactively logged on user, and also specify the forget option.  This way

ignore options.  This way the interactive user will always see the files

the interactive user will always see the files on the disk as belonging to him.

on the disk as belonging to him.





The remaining are for debugging and disaster recovery:

The remaining are for debugging and disaster recovery: