Bug 507964 - mount -a tries to mount mounted fuse filesystem
Summary: mount -a tries to mount mounted fuse filesystem
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: fuse
Version: 14
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Peter Lemenkov
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-06-24 21:03 UTC by Osipov Oleg
Modified: 2010-10-27 10:56 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2010-10-27 10:49:14 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Osipov Oleg 2009-06-24 21:03:36 UTC
Description of problem:
"mount-a" tries to mount already mounted fuse filesystem.

Version-Release number of selected component (if applicable):
==begin cut==
$ mount --version
mount from util-linux-ng 2.14.2 (with libblkid and selinux support)
==end cut====

How reproducible:
Always.

Steps to Reproduce:
1. install bindfs or some other fuse-based filesystem (sshfs, etc)
2. Add new mountpoint to /etc/fstab:
==begin cut==
bindfs#/srv/ftp/pub/music_cp1251_hide   /srv/ftp/pub/music_cp1251       fuse    ro,nosuid,nodev,allow_other,default_permissions,user=legolegs,group=users 0 0
==end cut====
3. [root@localhost] # mount -a
4. [root@localhost] # mount -a
Yes, run twice or more. Or reboot: during boot filesystems mounts twice - after loading kernel and after starting up network (i mean /etc/rc.d/init.d/netfs).

Actual results:
First "mount -a" work normally. Second prints error message:
==begin cut==
fuse: mountpoint is not empty
fuse: if you are sure this is safe, use the 'nonempty' mount option
==end cut====

Expected results:
First "mount -a" should mount new mountpoint normally. Second should notice all mouned filesystems and do nothing.

Additional info:
Some fuse silesystems (convmvfs for example) allow both fstab sintax:

somefuse#/from /mnt/to fuse defaults 0 0

and

somefuse /mnt/to fuse src_dir=/from 0 0

"mount -a" properly work only with second variant.

Comment 1 Penelope Fudd 2009-07-29 18:46:45 UTC
I'm also experiencing a problem with sshfs.  To add an entry to /etc/fstab, my usual procedure is to mount the directory manually, and then copy the entry from /etc/mtab to /etc/fstab.  In the case of sshfs, it doesn't work.  If I edit the fstab entry to be like this:

sshfs#server: /mnt/server fuse rw,nosuid,nodev,max_read=65536 0 0

then I can mount it, but the mtab entry looks like this:

server: /mnt/server fuse.sshfs rw,nosuid,nodev,max_read=65536 0 0

It seems that if the fstab entry doesn't look like the mtab entry, then mount -a will try to mount it again.

See also https://bugs.launchpad.net/ubuntu/+source/sshfs-fuse/+bug/243298

Comment 2 Karel Zak 2009-07-29 20:07:29 UTC
(In reply to comment #1)
> It seems that if the fstab entry doesn't look like the mtab entry, then mount
> -a will try to mount it again.

 Sure. mount(8) uses fsname+mountpoint pair to compare fstab with mtab.

> See also https://bugs.launchpad.net/ubuntu/+source/sshfs-fuse/+bug/243298  

 I see. The /sbin/mount.fuse helper has to write correct information to mtab. This is not a bug in [u]mount(8).

Comment 3 Bug Zapper 2010-04-27 15:14:08 UTC
This message is a reminder that Fedora 11 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
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this bug will be closed as WONTFIX if it remains open with a Fedora 
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Comment 4 Bug Zapper 2010-07-30 10:41:22 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 14 development cycle.
Changing version to '14'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 5 Peter Lemenkov 2010-10-27 10:49:14 UTC
it seems that it was finally fixed - I tried to add the following line into /etc/fstab

petro@localhost: /home/petro/fuse/sshfs/localhost fuse.sshfs users,rw,nosuid,nodev,max_read=65536,user=petro 0 0

and it does appears in /etc/fstab as is.  Also typing mount -a several times also works.

P.S. F-14, fuse-2.8.4-1.fc14.i686

Feel free to reopen this ticket again if problem still exists.


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