Package: mount
Version: 2.25.2-6
Severity: normal
Dear Maintainer,
*** Reporter, please consider answering these questions, where appropriate ***
* What led up to the situation?
Trying to mount a nfs4-export as declared in fstab with option "user" as a
normal user
* What exactly did you do (or not do) that was effective (or
ineffective)?
I already filed a bug on this against "mount.nfs" as bug # 788547.
But now it appears it is the "mount" command which does not handle th option
user correctly. Seems it gets no attention there. This bug does not exist in
Wheezy, showed up after upgrade to Jessie.
I already asked there to assign this bug also to the package "mount" without
any reaction, so I do report it here against "mount".
* What was the outcome of this action?
fstab entry:
leo:/Bilder /home/ingo/leo.Bilder nfs4 noauto,rw,user,soft,relatime 0 0
# showmount -e leo
Export list for leo:
/srv/nfs4/Bilder 192.168.33.0/24
/srv/nfs4 192.168.33.0/24
Mounting as user (UID=1000) fails:
$ LANG=en_US.UTF-8 mount leo:/Bilder
mount: leo:/Bilder: No such file or directory
However it is possible to perform the mount as "root".
Umount as user (UID=1000) fails with same "non informative" message:
$ LANG=en_US.UTF-8 umount leo:/Bilder
umount: leo:/Bilder: No such file or directory
Using "mount.nfs" instead allows mounting by a user:
Executing mount.nfs as a user with full path does not respect the
mountpoint as configured in fstab:
~$ /sbin/mount.nfs leo:/Bilder
~$ mount.nfs: no mount point provided
Adding the mountpoint works for both mount and umount:
~$ /sbin/mount.nfs leo:/Bilder /home/ingo/leo.Bilder
~$ /sbin/umount.nfs /home/ingo/leo.Bilder
This is a security flaw as users cannot mount/umount on demand without
root-privileges.
* What outcome did you expect instead?
mount to work as it does in Wheezy and according to documentation (mount,
fstab), which means respect the option "user"
-- System Information:
Debian Release: 8.1
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages mount depends on:
ii libc6 2.19-18
ii libmount1 2.25.2-6
ii libselinux1 2.3-2
ii libsmartcols1 2.25.2-6
mount recommends no packages.
Versions of packages mount suggests:
ii nfs-common 1:1.2.8-9
-- no debconf information
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