[SOLVED] Eject command lacks permissions after upgrade to 15.1

Brother77 · 08-27-2019, 12:11 PM

Did the permissions changed after upgrade 15.0 -> 15.1?

Error: umount failed: Operation not permitted

For unmounting a cdrom.

With sudo there is no problem but normally i do this just with a icon on the desktop.

Any advice here?

Thanks in advantage!

Peter

RandomTroll · 08-27-2019, 12:49 PM

The device needs permissions. For me that's /dev/sr0. I put a command in /etc/rc.d/rc.local

ehartman · 08-27-2019, 01:05 PM

Quote:

Originally Posted by RandomTroll

The device needs permissions. For me that's /dev/sr0.

I don't know how it works in openSUSE 15, but here the device files need to be in the group cdrom (and writable for the group) and I, myself, need to be in that group too to have those permissions.

Code:

brw-rw---- 1 root cdrom 11, 0 2019-07-29 19:46:00 /dev/sr0
brw-rw---- 1 root cdrom 11, 1 2019-07-29 19:46:00 /dev/sr1

This is the default in Slackware's "udev", but of course in openSUSE all that has been taken over by systemd, so I do not know what the defaults there are.

Brother77 · 08-28-2019, 12:05 PM

Quote:

Originally Posted by ehartman

CODE]
brw-rw---- 1 root cdrom 11, 0 2019-07-29 19:46:00 /dev/sr0
brw-rw---- 1 root cdrom 11, 1 2019-07-29 19:46:00 /dev/sr1[/CODE]

I did work before without any configuration on 15.0 and older.

The eject command works with a cdrom:

Code:

% eject -v
eject: using default device `/dev/sr0'
eject: device name is `/dev/sr0'
eject: /dev/sr0: not mounted
eject: /dev/sr0: is whole-disk device
eject: /dev/sr0: trying to eject using CD-ROM eject command
eject: CD-ROM eject command succeeded

But not as DVD:

Code:

eject: using default device `/dev/sr0'
eject: device name is `/dev/sr0'
eject: /dev/sr0: mounted on /run/media/neljor/openSUSE-Leap-15.1-DVD-x86_64470
eject: /dev/sr0: is whole-disk device
eject: /run/media/neljor/openSUSE-Leap-15.1-DVD-x86_64470: unmounting
umount: /run/media/neljor/openSUSE-Leap-15.1-DVD-x86_64470: umount failed: Operation not permitted.
eject: unmount of `/run/media/neljor/openSUSE-Leap-15.1-DVD-x86_64470' failed

What i notice is that the cdrom is not mounted, but functions fully.
And the dvd IS mounted but cannot be unmounted without root permission.

Code:

% groups
users cdrom

% ls -l /dev/sr0
brw-rw----+ 1 root cdrom 11, 0 Aug 28 09:56 /dev/sr0

Kindly,

Peter

Brother77 · 08-28-2019, 04:00 PM

[QUOTE=Brother77;6030200]Did the permissions changed after upgrade 15.0 -> 15.1?

Somehow the eject command is not suitable anymore, but just found that everything now is fully controlled by the device notifier,
mounting and ejecting of dvd's and cdroms. So i will give this a "problem solved" mark.

Thanks for reading.

ehartman · 08-29-2019, 12:51 AM

Quote:

Originally Posted by Brother77

And the dvd IS mounted but cannot be unmounted without root permission.

So the problem is not with elect, but with umount, you don't have the privilege to UNmount a mounted disk on /dev/sr0, probably because it has been auto-mounted as root by something in your desktop environment. That would have been a showstopper too if it had been a CDrom. I never automount and my fstab has the "users" option in it so that every user is allowed to unmount CD's and/or DVD's:

Code:

/dev/dvd             /mnt/dvd        auto    noauto,users,ro         0 0
/dev/cdrom           /mnt/cdrom      auto    noauto,users,ro         0 0

Note that I use symlinks, as I got two drives and I have got an external (double-layer writer) 3rd one, so I do not want to restrict it to physical device names.

Brother77 · 08-29-2019, 11:56 AM

Quote:

Originally Posted by ehartman

Code:

/dev/dvd             /mnt/dvd        auto    noauto,users,ro         0 0
/dev/cdrom           /mnt/cdrom      auto    noauto,users,ro         0 0

Note that I use symlinks, as I got two drives and I have got an external (double-layer writer) 3rd one, so I do not want to restrict it to physical device names.

Thank you kindly, will look further in to this.
In 15.0 ejecting was no problem the device notifier seems to have had a update that it now supports ejecting too with the disadvantage that the
eject command is unable to do its job as i used to do. So have to question if i want to go along with the new functionality of the device notifier
or make some lines in the fstab. Doesn't that need the exec option too? Which also make me question if it needs a 3rd line for writable disks.

Have a great day!

Peter

mrmazda · 08-29-2019, 11:37 PM

It might matter which DE you use. openSUSE offers Gnome, KDE, XFCE, LXQt and several others. Which do you use?