On Tue, 2015-09-22 at 22:41 +0200, Xen wrote:
On Tue, 22 Sep 2015, Greg Freemyer wrote:
Please give XFS some credit. It has been an enterprise quality filesystem for well over a decade. === man mount <snip> Mount options for xfs <snip> nouuid Don't check for double mounted filesystems using the filesystem uuid. This is useful to mount LVM snapshot volumes. === Well, it didn't tell me that. And it would give me trouble mounting my snapshots because now I have to check for which filesystem is in use which is just ....more work.
Only because whatever other tool or filesystem you have previously been using *FAILED* to warn you of double mounting; this is a feature, not a bug. Mounting a snapshot is a special use-case, requiring relief of a safety is just a good practice, not a problem.
Suddenly a simple "mount" command is no longer fool-proof.
It never ever was. A "simple" mount command is merely one where you are assuming the defaults are OK, and that you remember exactly the context you are operating in.
And now you need a fool-proof way to discover the filesystem type of a block device
And? I would hope if you are moving, snapshoting, and mounting/unmounting LV's that you *just-know* the file-system you are working with.
It's a bit like Tar that includes some device number in the archives it creates.
I am not sure what "some device number" means. Tar persists the meta -data and contents of a file.
is beyond me, a path is supposed to be uniquely identified by.... path.
No, this has never ever ever been true. It is certainly not true in any kind of modern-ish storage system. -- Adam Tauno Williams mailto:awilliam@whitemice.org GPG D95ED383 Systems Administrator, Python Developer, LPI / NCLA -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org