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#1 2015-02-20 17:11:40

ssri
Member
Registered: 2010-02-16
Posts: 216

LXQt doesn't follow udisks2 rules re mounting directories.

Is there any way to make LXQt's automounting feature respect udisks2's default directory for mounting.  Under udisks2, it's /run/media/$USER.  Under LXQt's automounting scheme, disks are mounted under /media/ directly.

I guess I can add my removable drive in my fstab array with the nofail option.

Last edited by ssri (2015-02-22 00:55:47)

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#2 2015-02-20 19:13:21

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,839

Re: LXQt doesn't follow udisks2 rules re mounting directories.

Don't do that - fstab is not intended for removable devices.

Are you sure lxqt is using udisks2? Mounting under /media/ is the way udisks does it, not udisks2. Have you both installed? Does the lxqt automounter (about which I know nothing, just to be clear) have the option to choose one or the other?

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#3 2015-02-20 20:20:02

ssri
Member
Registered: 2010-02-16
Posts: 216

Re: LXQt doesn't follow udisks2 rules re mounting directories.

tomk wrote:

Don't do that - fstab is not intended for removable devices.

Then the wiki should be amended with that caveat.

tomk wrote:

Are you sure lxqt is using udisks2? Mounting under /media/ is the way udisks does it, not udisks2. Have you both installed? Does the lxqt automounter (about which I know nothing, just to be clear) have the option to choose one or the other?

Ahh, that might be the issue as d-bus is starting udisks' daemon (udisks) instead of udisks2's (udisksd).  The wiki warns against explicitly loading either daemon as d-bus handles it automatically.  As for lxqt's automounter, there is practically no configuration menu, or any .conf files to be found under ~/.config/lxqt/, that can change or specify any parameters of the automounter.

UNIT                                                         LOAD   ACTIVE SUB     DESCRIPTION
avahi-daemon.service                                         loaded active running Avahi mDNS/DNS-SD Stack
bumblebeed.service                                           loaded active running Bumblebee C Daemon
chrony.service                                               loaded active running Chrony Network Time Daemon
cpupower.service                                             loaded active exited  Apply cpupower configuration
dbus.service                                                 loaded active running D-Bus System Message Bus
getty@tty1.service                                           loaded active running Getty on tty1
haveged.service                                              loaded active running Entropy Harvesting Daemon
kmod-static-nodes.service                                    loaded active exited  Create list of required static device nodes for the current 
lm_sensors.service                                           loaded active exited  Initialize hardware monitoring sensors
netctl@blahblah.service                                      loaded active exited  Automatically generated profile by wifi-menu
polkit.service                                               loaded active running Authorization Manager
systemd-backlight@backlight:intel_backlight.service          loaded active exited  Load/Save Screen Backlight Brightness of backlight:intel_bac
systemd-fsck@dev-disk-by\x2duuid-3152e3d1\x2db216\x2d4dd1\x2d9f38\x2d218b85227318.service loaded active exited  File System Check on /dev/disk/
systemd-fsck@dev-disk-by\x2duuid-5aa046f4\x2df4a3\x2d4a2f\x2db0c1\x2debf9e1a45fe9.service loaded active exited  File System Check on /dev/disk/
systemd-journal-flush.service                                loaded active exited  Flush Journal to Persistent Storage
systemd-journald.service                                     loaded active running Journal Service
systemd-logind.service                                       loaded active running Login Service
systemd-modules-load.service                                 loaded active exited  Load Kernel Modules
systemd-random-seed.service                                  loaded active exited  Load/Save Random Seed
systemd-remount-fs.service                                   loaded active exited  Remount Root and Kernel File Systems
systemd-rfkill@rfkill0.service                               loaded active exited  Load/Save RF Kill Switch Status of rfkill0
systemd-rfkill@rfkill1.service                               loaded active exited  Load/Save RF Kill Switch Status of rfkill1
systemd-rfkill@rfkill2.service                               loaded active exited  Load/Save RF Kill Switch Status of rfkill2
systemd-sysctl.service                                       loaded active exited  Apply Kernel Variables
systemd-tmpfiles-setup-dev.service                           loaded active exited  Create Static Device Nodes in /dev
systemd-tmpfiles-setup.service                               loaded active exited  Create Volatile Files and Directories
systemd-udev-trigger.service                                 loaded active exited  udev Coldplug all Devices
systemd-udevd.service                                        loaded active running udev Kernel Device Manager
systemd-update-utmp.service                                  loaded active exited  Update UTMP about System Boot/Shutdown
systemd-user-sessions.service                                loaded active exited  Permit User Sessions
systemd-vconsole-setup.service                               loaded active exited  Setup Virtual Console
udisks.service                                               loaded active running UDisks
upower.service                                               loaded active running Daemon for power management
user@1000.service                                            loaded active running User Manager for UID 1000
wpa_supplicant.service                                       loaded active running WPA supplicant

Last edited by ssri (2015-02-20 20:31:35)

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#4 2015-02-20 20:36:34

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,839

Re: LXQt doesn't follow udisks2 rules re mounting directories.

Maybe just remove udisks, see if it changes over to udisks2.

Feel free to change the wiki if you want.

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#5 2015-02-21 00:17:30

ssri
Member
Registered: 2010-02-16
Posts: 216

Re: LXQt doesn't follow udisks2 rules re mounting directories.

I removed udisks and rebooted.  According to systemctl, D-BUS does not start up udisks2 upon logging into the shell.  Furthermore, starting up lxqt via 'startx' results in no devices automounted.  I guess lxqt's automounter uses udisks, which is strange because hasn't development for udisks ceased several months ago?  So, I tried the udisk2 wrapper, devmon (uses udevil), by enabling and starting it.

# systemctl enable devmon@<username>.service

So, devmon is up and running and it automounts my removable drive upon logging in!  But, the friggin' drive is mounted in udisks' mounting scheme (/media/LABEL) and not udisks2 (/run/media/<username>/LABEL).  Seeing that the udevil was last built two years ago, I guess it uses udisks' mounting scheme.  Grrrr..   

I guess I can throw in the towel and reorganize my symlinks accordingly.  But, the problem is that KDE's automounter appears to use udisks2's mounting directory scheme and I've been jumping back and forth between the two DE's lately.  Furthermore, going to lxqt and using pcmanfm-qt, it also uses udisks, so without udisks, mounted volumes do not appear under "Places".  Then again, since devmon starts upon logging before launching any DE, udisks' directory scheme will be used.  Might as well edit my symlinks. 

Just a quick question.  The fstab entry allows me to set the drive's mount directory according to udisks2's directory scheme.  Outside fstab's design, is there a reason why it is not a recommend solution here?

Last edited by ssri (2015-02-21 01:22:55)

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#6 2015-02-21 09:39:33

berbae
Member
From: France
Registered: 2007-02-12
Posts: 1,304

Re: LXQt doesn't follow udisks2 rules re mounting directories.

Do you have doc or a link to a doc about the lxqt's automounter?
How do you use it?
Could you tell me if lxqt features a system tray please?

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#7 2015-02-22 00:45:21

ssri
Member
Registered: 2010-02-16
Posts: 216

Re: LXQt doesn't follow udisks2 rules re mounting directories.

berbae wrote:

Do you have doc or a link to a doc about the lxqt's automounter?

There appears to be no documentation but here's the source.

berbae wrote:

How do you use it?

It is a panel widget.  It functions like KDE's device notifier, left click brings a small list of devices that can be mounted.  To add it to LXQt's panel, right click the panel > Add Panel Widgets > Removable media.  Configuration options are really limited:
snapshot44a.jpg

berbae wrote:

Could you tell me if lxqt features a system tray please?

Yes, there's a system tray widget.

Unfortunately liblxqt-mount seems to prefer udisks even though there's code to use udisks2 (see source link).

Last edited by ssri (2015-02-22 16:39:20)

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#8 2015-02-22 02:51:44

Alad
Wiki Admin/IRC Op
From: Bagelstan
Registered: 2014-05-04
Posts: 2,420
Website

Re: LXQt doesn't follow udisks2 rules re mounting directories.

ssri wrote:

So, I tried the udisk2 wrapper, devmon (uses udevil), by enabling and starting it.

# systemctl enable devmon@<username>.service

So, devmon is up and running and it automounts my removable drive upon logging in!  But, the friggin' drive is mounted in udisks' mounting scheme (/media/LABEL) and not udisks2 (/run/media/<username>/LABEL).  Seeing that the udevil was last built two years ago, I guess it uses udisks' mounting scheme.  Grrrr..

Please follow the instructions in https://wiki.archlinux.org/index.php/Udisks#Devmon which disable udevil's mount functionality, using udisks2 instead.

Mods are just community members who have the occasionally necessary option to move threads around and edit posts. -- Trilby

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#9 2015-02-22 15:26:15

berbae
Member
From: France
Registered: 2007-02-12
Posts: 1,304

Re: LXQt doesn't follow udisks2 rules re mounting directories.

ssri wrote:

Unfortunately liblxqt-mount seems to prefer udisks even though there's code to use udisks2

In fact the lxqt mounter tries first to use udisks2, and only if this is not available, it then tries to use udisks legacy; as shown in 'mount.cpp':

MountManager::MountManager(QObject *parent):
    QObject(parent),
    mProvider(0)
{
    mProvider = new UDisks2Provider(this);
    if (!mProvider->isValid())
    {
        delete mProvider;
        mProvider = 0;

        mProvider = new UDiskProvider(this);
        if (!mProvider->isValid())
        {
            delete mProvider;
            mProvider = 0;
        }
    }
...

After a reboot and login to graphical desktop, do you have something like that:

$ systemctl status udisks2
● udisks2.service - Disk Manager
   Loaded: loaded (/usr/lib/systemd/system/udisks2.service; static; vendor preset: disabled)
   Active: active (running) since dim. 2015-02-22 10:16:55 CET; 5h 29min ago
     Docs: man:udisks(8)
 Main PID: 598 (udisksd)
   CGroup: /system.slice/udisks2.service
           └─598 /usr/lib/udisks2/udisksd --no-debug

févr. 22 10:16:55 arch64 udisksd[598]: udisks daemon version 2.1.4 starting
févr. 22 10:16:55 arch64 systemd[1]: Started Disk Manager.
févr. 22 10:16:55 arch64 udisksd[598]: Acquired the name org.freedesktop.UDisks2 on the system message bus

ie is the name 'org.freedesktop.UDisks2' available?
If not, lxqt mounter will use udisks legacy if available.

As an aside, udisks legacy is deprecated and should be avoided as much as possible.

Thanks for the infos you provided to me in your post.

Last edited by berbae (2015-02-22 15:29:58)

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#10 2015-02-22 20:38:50

ssri
Member
Registered: 2010-02-16
Posts: 216

Re: LXQt doesn't follow udisks2 rules re mounting directories.

berbae wrote:

In fact the lxqt mounter tries first to use udisks2, and only if this is not available, it then tries to use udisks legacy; as shown in 'mount.cpp'

Ideally yes, but it does not appear to be in reality.  Here's what happened after I disabled devmon, removed any udev rules I placed for udisks2.  So, here goes after rebooting:
Pre-DE login:

$ systemctl status udisks ; systemctl status udisks2
● udisks.service - UDisks
   Loaded: loaded (/usr/lib/systemd/system/udisks.service; disabled; vendor preset: disabled)
   Active: inactive (dead)
● udisks2.service - Disk Manager
   Loaded: loaded (/usr/lib/systemd/system/udisks2.service; static; vendor preset: disabled)
   Active: inactive (dead)
     Docs: man:udisks(8)

Post-LXQt login:

$ systemctl status udisks ; systemctl status udisks2
● udisks.service - UDisks
   Loaded: loaded (/usr/lib/systemd/system/udisks.service; disabled; vendor preset: disabled)
   Active: active (running) since Sun 2015-02-22 12:19:15 PST; 30s ago
 Main PID: 650 (udisks-daemon)
   CGroup: /system.slice/udisks.service
           ├─650 /usr/lib/udisks/udisks-daemon
           ├─658 udisks-daemon: not polling any devices
           └─723 /sbin/mount.ntfs /dev/sdc1 /media/Music -o rw,nodev,nosuid,uid=1000,gid=100,dmask=0077,fmask=0177,uhelper=udisks
● udisks2.service - Disk Manager
   Loaded: loaded (/usr/lib/systemd/system/udisks2.service; static; vendor preset: disabled)
   Active: inactive (dead)
     Docs: man:udisks(8)
berbae wrote:
févr. 22 10:16:55 arch64 udisksd[598]: udisks daemon version 2.1.4 starting
févr. 22 10:16:55 arch64 systemd[1]: Started Disk Manager.
févr. 22 10:16:55 arch64 udisksd[598]: Acquired the name org.freedesktop.UDisks2 on the system message bus

ie is the name 'org.freedesktop.UDisks2' available?
If not, lxqt mounter will use udisks legacy if available.

That appears to be the case, as nowhere in my journal log does it state udisksd being started.  Checking loginctl, my session contains 'Remote=no' and 'Active=yes', duh.  It appears that d-bus is not starting udisksd by demand.  The wiki also suggests to configure policykit manually if my session is not active or present, which isn't the case.  Furthermore, that wiki tip mentions and offers a policykit configuration to be placed under its respective ./rules.d.  However, it deals with the storage group.  Hasn't storage been deprecated with the advent of systemd and logind or rather subsumed?

berbae wrote:

As an aside, udisks legacy is deprecated and should be avoided as much as possible.

Hence the purpose of this thread (see post #5)

berbae wrote:

Thanks for the infos you provided to me in your post.

Sure anytime.  Rather than deal with this udisks/udisks2 mess wrt LXQt, I'm thinking about renabling devmon and modifying udevil.conf to set mountpoints at /run/media/$User.

Last edited by ssri (2015-02-22 22:03:25)

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#11 2015-03-01 20:12:33

polomi
Member
Registered: 2015-02-25
Posts: 12

Re: LXQt doesn't follow udisks2 rules re mounting directories.

Not sure if you still have this issue, but PCManFM requires gvfs and gvfs-afc (they're optional dependencies) for mounting removable devides, and gvfs itself uses udisks2.

PCManFM properly uses udisks2 on my install. And so does the removable media widget.

Last edited by polomi (2015-03-01 20:14:18)

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