Re: [REVIEW 0/2] Case insensitive support for XFS

[Nathan Scott <nscott@aconex.com>]

On Fri, 2008-01-18 at 19:05 +0100, Martin Steigerwald wrote:
> Hi Barry!
> 
> Am Freitag 18 Januar 2008 schrieb Barry Naujok:
> 
> > There are two mount options for enabling case-insensitivity
> > on a Unicode XFS filesystem:
> >    - "ci" - enables case-insensitivity for file names
> >    - "ciattr" - enables case-insensitivity for extended
> >                 attributes.
> 
> How do I know that I am on an Unicode XFS filesystem. Could I see this 
> with xfs_db -r -c 'sb 0' -c p <device>? Hmm, nothing unicode related in 
> there as far as I can see. The fs was created with 2.6.23, mkfs.xfs 2.9.4 
> and the mkfs options that David suggested.

You'd have created it with the magic (new) mkfs option, and the
xfs_db "version" command would tell you it was enabled.

> Do I need to backup / mkfs / restore to switch to one? I understand that I 

Yes.

> can switch between enable / disable case-insensitivity via a mount 
> option.

No.

>  Would I be able to enable unicode via xfs_db version command or 
> something like it?

Not as far as I know.  It would be more likely implemented as an
extension to xfs_repair I think, if it were ever done (the xfs_db
version command definately wont have the right kind of logic to
enable/disable this).

cheers.

-- 
Nathan