Re: mount as read-only and XFS commands

[Eric Sandeen <sandeen@sgi.com>]

Hi - 

I think it depends on how you define "read only" - read-only usually
implies that you cannot alter the data on a filesystem.  I don't
know whether it should apply to the underlying geometry of the filesystem.

Since the growfs operation leaves the data on the filesystem unchanged,
I don't see any problem with xfs_growfs on a read-only fs.

I'm also fairly certain that this matches Irix behavior, but I'll have
to check.

-Eric

On Wed, 3 Jul 2002, Tatsu Yasugahira wrote:

> Hi,
> 
> I'd like to confirm the behavior of XFS.
> 
> I found that the XFS command (xfs_growfs) changes the filesystem
> which is mounted by read-only.
> This phenomenon occurs on the read-only filesystem and 
> on the filesystem that goes to read-only by the remount operation.
> 
> I think it should be the error with EROFS or EBUSY.
>