ArchLinux mounts filesystem with no entries in /etc/fstab

I have successfully installed ArchLinux and now its working perfectly fine.
Although, while I check `/etc/fstab` entries I do not see any mounts, even the root partition is omitted. However when I execute `mount`, it shows the mount-points of each on my system.
My question is how my file-system gets mounted. Would it have something to do with systemd?

keshara.dorakumbura wrote:
@Trilby: you are dead right. With your help it solved.!
what i learn during this is that system mounts /root & /boot using the bootloader in the first place. After that they are remounted by systemd if only they exist in /etc/fstab. Due to some reason, my /etc/fstab did not generate as it should withing the installation. But the reason it works was that bootloader mounts required mount-points when the system boots.
Am i right Trilby?
No, this is not entirely correct.
The bootloader mounts /boot only to exec the kernel which then finds initrd. After that, /boot is _not_ mounted (and you don't have it mounted either). In fact, for your system to work, /boot partition does not even need to exist. For example, on my machine:
$ ls -hl /boot
total 0
$ mountpoint /boot
/boot is not a mountpoint
$ mount | grep boot
$
If you want /boot to be mounted at all times, you must specify it in fstab.
The / partition is mounted from the initramfs (initramfs-* files in your /boot). This is necessary to exec systemd from there. Now, systemd keeps / mounted, so you don't need an entry for it in fstab (unless you want specific mount options).
Other filesystemd that you are seeing are pseudo-filesystems, mounted automatically by systemd. The reason why your fstab was empty is probably because you ran genfstab > /etc/fstab, not your target installation.

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I'm having the same issue here, though not just in Nautilus.
Samba is working to some extent because I can access the directories I'm sharing on both of my Linux computer from a Windows laptop with no trouble. Come to think of it the Windows laptop (running XP) and my VirtualBox, also running XP, both access the samba shares fine.
However, I can not access them from the Linux computers. I have two Linux machines actually, Avalon and Atlantis. The one, Avalon, I can't access anything from/on (though Windows can access it just fine). The other one, Atlantis, I am sharing /homes and /srv, /srv mounts fine, but /homes will not. I'm sharing /srv on Avalon as well, but it won't mount.
To simplify, /srv on Atlantis is the only share I can access from either Linux machine. But only the /srv on Atlantis, not the /srv on Avalon.
I have smbnetfs installed. Here are my daemons from rc.conf:
DAEMONS=(syslog-ng network netfs smbnetfs crond dbus hal fam alsa mysqld mythbackend mpd openntpd lircd cups httpd sshd privoxy tor samba gdm)
I am curious though: does netfs and smbnetfs need to be running?
Any help would be appreciated. Thanks.
Frantic wrote:You should check your logs and see why the mount is failing, it's probably a small tweak (maybe fuse not loaded)
Probably something I should know already, but what logs should I check? Thanks.
Last edited by The Avatar of Time (2009-03-06 10:16:03)

[SOLVED]Cannot mount partitions with PCMANFM --no longer an issue

Hi,
I have searched and searched and pulling my hair out on this issue. I am using PCMANFM .9.10 on an LXDE install using the Arch x86 iso. My HD contains several linux partitions and a FAT32 partition.
I am not able to mount these partitions in PCMANFM. I am able to mount my usb flash drive
When trying to mount a partition in PCMANFM I get a "not authorized to perform operation" error message.
Today, June 11 I partially rewrote this due to the lack of response I am getting on this problem.
1. did a reinstall of Arch & LXDE today. I've done two or three installs. dbus is in daemons in /etc/rc.conf
2. initially the partition icons did not show up
3. then, I installed gvfs and added 55-my-conf.pkla in /etc/polkit-1/localauthority/50-local.d/
4. With that the partition icons show up in PCMANFM
5. But I still get the "not authorized to perform operation" message
The 55-my-conf.pkla has this content:
[Storage Permissions]
Identity=unix-group:storage
Action=org.freedesktop.udisks.filesystem-mount;org.freedesktop.udisks.drive-eject;org.freedesktop.udisks.drive-detach;org.freedesktop.udisks.luks-unlock;org.freedesktop.udisks.inhibit-polling;org.freedesktop.udisks.drive-set-spindown;org.freedesktop.udisks.filesystem-mount-system-internal
ResultAny=yes
ResultActive=yes
ResultInactive=no
contents of .xinitrc
#!/bin/sh
# ~/.xinitrc
# Executed by startx (run your window manager from here)
if [ -d /etc/X11/xinit/xinitrc.d ]; then
for f in /etc/X11/xinit/xinitrc.d/*; do
[ -x "$f" ] && . "$f"
done
unset f
fi
# exec gnome-session
# exec startkde
#exec startxfce4
exec startlxde
# ...or the Window Manager of your choice
At /usr/share/polkit-1/actions/org.freedesktop.udisks.policy
I changed <action id="org.freedesktop.udisks.filesystem-mount-system-internal">
mount a system-internal disk at <allow_active> from "auth_admin_keep" to "yes".
Still didn't work!
Either this is a bug or I have a permission problem somewhere.
Can you please advise how to do this or point me to a recent tutorial to be able to auto mount other partitions not using /etc/fstab? Some of the older posts refer to hal or other package that have been deprecated.
Thanks
Edit: latest. It seems that I must mount the desired partition from the terminal. example: $sudo mount /dev/sda5 /mnt
then can edit it from PCMANFM by going to / and then /mnt. Apparently I do not have to manually unmount.
Last edited by linuxloverjerry1 (2012-06-13 04:25:37)

Hi,
I have searched and searched and pulling my hair out on this issue. I am using PCMANFM .9.10 on an LXDE install using the Arch x86 iso. My HD contains several linux partitions and a FAT32 partition.
I am not able to mount these partitions in PCMANFM. I am able to mount my usb flash drive
When trying to mount a partition in PCMANFM I get a "not authorized to perform operation" error message.
Today, June 11 I partially rewrote this due to the lack of response I am getting on this problem.
1. did a reinstall of Arch & LXDE today. I've done two or three installs. dbus is in daemons in /etc/rc.conf
2. initially the partition icons did not show up
3. then, I installed gvfs and added 55-my-conf.pkla in /etc/polkit-1/localauthority/50-local.d/
4. With that the partition icons show up in PCMANFM
5. But I still get the "not authorized to perform operation" message
The 55-my-conf.pkla has this content:
[Storage Permissions]
Identity=unix-group:storage
Action=org.freedesktop.udisks.filesystem-mount;org.freedesktop.udisks.drive-eject;org.freedesktop.udisks.drive-detach;org.freedesktop.udisks.luks-unlock;org.freedesktop.udisks.inhibit-polling;org.freedesktop.udisks.drive-set-spindown;org.freedesktop.udisks.filesystem-mount-system-internal
ResultAny=yes
ResultActive=yes
ResultInactive=no
contents of .xinitrc
#!/bin/sh
# ~/.xinitrc
# Executed by startx (run your window manager from here)
if [ -d /etc/X11/xinit/xinitrc.d ]; then
for f in /etc/X11/xinit/xinitrc.d/*; do
[ -x "$f" ] && . "$f"
done
unset f
fi
# exec gnome-session
# exec startkde
#exec startxfce4
exec startlxde
# ...or the Window Manager of your choice
At /usr/share/polkit-1/actions/org.freedesktop.udisks.policy
I changed <action id="org.freedesktop.udisks.filesystem-mount-system-internal">
mount a system-internal disk at <allow_active> from "auth_admin_keep" to "yes".
Still didn't work!
Either this is a bug or I have a permission problem somewhere.
Can you please advise how to do this or point me to a recent tutorial to be able to auto mount other partitions not using /etc/fstab? Some of the older posts refer to hal or other package that have been deprecated.
Thanks
Edit: latest. It seems that I must mount the desired partition from the terminal. example: $sudo mount /dev/sda5 /mnt
then can edit it from PCMANFM by going to / and then /mnt. Apparently I do not have to manually unmount.
Last edited by linuxloverjerry1 (2012-06-13 04:25:37)

Mounting problem with Solaris 10

Hi everybody !
I am new in Solaris admin (come from HP !)
here is my problem :
i have to create a FS (would be only data in it) that would be shared by 2 zones working on a fail-over principe.
So i create this FS directly under the global zone.
But i can't find in the Man pages the options of mount that tell the 2 zones to have their entries alternatively on this new FS
waiting for your advices, thanks in advance.
Titine.

You don;t need to mount the FS by NFS unless your talking about zones on two different machines.
Two zones on the same machine can import the same filesystem with no problems.
But I'm unclear as to what your trying to achieve. Two zones on the same machines provides no real failover because if the machine goes down so do both zones.
Your best option is to have the FS on one machine and NFS export it to 2 other machines.
Theres no real advantage to using zones here of course. But you can if you prefer.
Of course the machine hosting the FS is still a single point of failure unless you use a SAN and HA-NFS.

Archlinux mounting drives I don-t want to mount...

Hello,
I don t know why but Archlinux is mounting partitions that are not in the fstab. Partitions coming from usb attached drives I am using with Windows, for instance, that reside on the same physical computer as Arch.
However, in the fstab there is no mention of these partitions.
What else can it be that mounts them?
Thanks.

henk wrote:Look in the dconf Editor for media-handling.
http://superuser.com/questions/582219/p … linux-mint
Thanks a lot! I removed that option but it did not change the behavior. I think it s related to udisk2, in fact when trying to access one of the automounted drives, it asks me for a password. When click on Details I see "Vendor: The udisk Project" as "Action: org.freedesktop.udisks2.filesystem-mount-system".
I hope I find something about it on the wiki...

Problems mounting filesystem

Hey guys,
Today I tried to start my computer but I can't log in. During boot, it hangs for a while in the "Mounting filesystems" phase until it fails with a "Can't create /etc/mtab file" message. It also says "Maybe there is a stale lock".
How can I solve this? SLiM won't allow me to log in, it says it can't execute the log in command.
Thank you!

Blimey, I had to get home drunk to fix this!
I was being a wally and trying to find the files in /dev, when they were in /etc. There were three files - mtab~, mtab~1234 (some numbers) and mtab.fuselock, which I removed. And bam! Working fine now.
Cheers guys

Hello. I have a problem with OEL 6.5 and ocfs2. When I mount ocfs2 with mount -a command all ocfs2 partitions mount and work, but when I reboot no ocfs2 partitions auto mount. No error messages in log. I use DAS FC and iSCSI FC.

Hello.
I have a problem with OEL 6.5 and ocfs2.
When I mount ocfs2 with mount -a command all ocfs2 partitions mount and work, but when I reboot no ocfs2 partitions auto mount. No error messages in log. I use DAS FC and iSCSI FC.
fstab:
UUID=32130a0b-2e15-4067-9e65-62b7b3e53c72 /some/4 ocfs2 _netdev,defaults 0 0
#UUID=af522894-c51e-45d6-bce8-c0206322d7ab /some/9 ocfs2 _netdev,defaults 0 0
UUID=1126b3d2-09aa-4be0-8826-0b2a590ab995 /some/3 ocfs2 _netdev,defaults 0 0
#UUID=9ea9113d-edcf-47ca-9c64-c0d4e18149c1 /some/8 ocfs2 _netdev,defaults 0 0
UUID=a368f830-0808-4832-b294-d2d1bf909813 /some/5 ocfs2 _netdev,defaults 0 0
UUID=ee816860-5a95-493c-8559-9d528e557a6d /some/6 ocfs2 _netdev,defaults 0 0
UUID=3f87634f-7dbf-46ba-a84c-e8606b40acfe /some/7 ocfs2 _netdev,defaults 0 0
UUID=5def16d7-1f58-4691-9d46-f3fa72b74890 /some/1 ocfs2 _netdev,defaults 0 0
UUID=0e682b5a-8d75-40d1-8983-fa39dd5a0e54 /some/2 ocfs2 _netdev,defaults 0 0

What is the output of:
# chkconfig --list o2cb
# chkconfig --list ocfs2
# cat /etc/ocfs2/cluster.conf

[SOLVED] kde 4.6 and Udisks mounting problems with Dolphin

Hello,
I have a problem with Dolphin in KDE 4.6 where it displays my non-Arch partitions (a / and /home used for Opensuse) as well as a CD-Rom or usb if inserted, but registers an error when I click on the device/partition icon. Specifically, I get the following error displayed at the bottom of Dolphin:
An error occurred while accessing Hard Drive, the system responded: org.freedesktop.UDisks.Error.Failed: Error creating mount point: No such file or directory.
Because of this error, I am unable to mount usb pendrives, access CDs, or access the non-Arch partitions. I'm not sure if this is a KDE error or if it related to Arch as I never encountered this error running KDE 4.6 in Opensuse.
My daemons running in /etc/rc.conf
DAEMONS=(syslog-ng dbus networkmanager netfs crond alsa kdm)
My /etc/fstab
#/dev/cdrom /media/cd auto ro,user,noauto,unhide 0 0
#/dev/dvd /media/dvd auto ro,user,noauto,unhide 0 0
#/dev/fd0 /media/fl auto user,noauto 0 0
/dev/sda1 / ext4 defaults,noatime 0 1
/dev/sda5 swap swap defaults 0 0
/dev/sda6 /home ext4 defaults,noatime 0 1
tmpfs /tmp tmpfs defaults,nodev,nosuid,mode=1777 0 0
tmpfs /var/lock tmpfs defaults,nodev,nosuid,noexec,mode=1777,size=10M 0 0
tmpfs /var/run tmpfs defaults,nodev,nosuid,noexec,mode=0755,size=10M 0 0
Now, I don't have hal running as a daemon as I have read that it is no longer needed in KDE 4.6. Similarly, I don't have my CD-Rom drive mounted as I read in the udev wiki that Udisks automatically mounts devices and partitions. The wiki also indicates that Udisks is supposed to require little configuration.
I've searched the forum and Google, and I have not been able to find any information documenting a Dolphin and UDisks mounting error in KDE 4.6.
I installed KDE through the # pacman -S kde command, but is there some other package that I need to install in order to get Udisks working properly?
Thanks.
Last edited by Bordee (2011-03-24 16:09:25)

When I enter $ groups in a terminal I get the following
sys adm disk lp wheel games video audio optical storage power users
So I'm definitely part of the storage group.
I think I found a solution. I created a /data mountpoint in fstab and a /data folder in my root directory. Now, I'm able to mount and access the contents of the /home partition from Opensuse. The reason I wanted to do this was to access music and photos and transfer them onto my Arch /home partition.
I uncommented the cdrom, dvd, and fd0 devices in fstab and I created /media/cd, /media/dvd, and /media/fl. After inputting a # mount -a, my CDROM drive reads properly as does my USB.
So once again, thank, you for pointing me in the right direction.
One final thought. I was under the impression from reading the UDisks information that it automatically detected and mounted other partitions and devices without them being explicitly mounted in fstab. Was the assumption wrong? In other words, for UDisks and Dolphin to work together properly in KDE 4.6, do all of the devices that appear have to first be mounted in fstab?

Auto mount failure with "not owner"

I have setup auto_master with the following line:
/- auto_direct
I also have tested a client smb share connection with the following successfully since this node is a member of the cih-ettm windows domain;
I have also setup smbadm add-key with this users name and password so that when I mount here with the following command a password is not required.
mount -F smbfs //chaos.cih-ettm.com/InboundImages /export/home/ttp/images
This works and I get a mount point and I can copy files to the directory and the windows box sees and can access the files.
If I try to set this up as an automount by adding the following line to /etc/auto_direct and execute the command automount I receive the error 'not owner'
/export/home/ttp/images -fstype=smbfs,dirperms=0755,uid=ttp //chaos.cih-ettm.com/InboundImages
Error returned:
automount: mount /export/home/ttp/outboundimages/images: Not owner
I also have the following lines in the /etc/security/exec_attr
Basic Solaris User:solaris:cmd:::/usr/lib/fs/smbfs/mount:privs=sys_mount
Basic Solaris User:solaris:cmd:::/usr/lib/fs/smbfs/umount:privs=sys_mount
In all cases the 'ttp' user is the owner of the /export/home/ttp/images
Any help would be appreciated.
Thanks,
Dave

I have setup auto_master with the following line:
/- auto_direct
I also have tested a client smb share connection with the following successfully since this node is a member of the cih-ettm windows domain;
I have also setup smbadm add-key with this users name and password so that when I mount here with the following command a password is not required.
mount -F smbfs //chaos.cih-ettm.com/InboundImages /export/home/ttp/images
This works and I get a mount point and I can copy files to the directory and the windows box sees and can access the files.
If I try to set this up as an automount by adding the following line to /etc/auto_direct and execute the command automount I receive the error 'not owner'
/export/home/ttp/images -fstype=smbfs,dirperms=0755,uid=ttp //chaos.cih-ettm.com/InboundImages
Error returned:
automount: mount /export/home/ttp/outboundimages/images: Not owner
I also have the following lines in the /etc/security/exec_attr
Basic Solaris User:solaris:cmd:::/usr/lib/fs/smbfs/mount:privs=sys_mount
Basic Solaris User:solaris:cmd:::/usr/lib/fs/smbfs/umount:privs=sys_mount
In all cases the 'ttp' user is the owner of the /export/home/ttp/images
Any help would be appreciated.
Thanks,
Dave

More than one entry in /etc/defaultrouter

To my surprise, it's possible to put more than one entry in /etc/defaultrouter. It's even documented in the man page and if you do it you end up with what looks like more than one default route. But what's does it mean to have more than one default route? Does the kernel apply some kind of heuristic to decide which one to use? Does the default route with no device get ignored?
$ cat /etc/defaultrouter
10.8.60.1
10.8.127.1
$ netstat -nrv
IRE Table: IPv4
Destination Mask Gateway Device Mxfrg Rtt Ref Flg Out In/Fwd
default 0.0.0.0 10.8.60.1 1500* 0 1 UG 761582 0
default 0.0.0.0 10.144.128.1 e1000g3 1500* 0 1 UG 3546367 0
10.8.60.0 255.255.252.0 10.8.61.22 e1000g0 1500* 0 1 U 2703697 0
10.144.128.0 255.255.252.0 10.144.131.243 e1000g3 1500* 0 1 U 119119 0
224.0.0.0 240.0.0.0 10.8.61.22 e1000g0 1500* 0 1 U 0 0
127.0.0.1 255.255.255.255 127.0.0.1 lo0 8232* 0 52 UH 22475898 0
$

john_lilburne wrote:
To my surprise, it's possible to put more than one entry in /etc/defaultrouter. It's even documented in the man page and if you do it you end up with what looks like more than one default route. But what's does it mean to have more than one default route?Probably not what you want.
Does the kernel apply some kind of heuristic to decide which one to use? Does the default route with no device get ignored?Round robin.
What do you mean by "no device"? You have to have an IP destination or the route couldn't be configured. But that IP destination doesn't have to be currently available. Unplugging a cable doesn't take an IP interface "DOWN", nor does it modify the routing table.
If you need dynamic, failure-resilient routing, then you'd have to run a routing update protocol. The contents of /etc/defaultrouter are for static routes.
Darren

Entry in /etc/hosts.allow for insecure VNC?

I read the ssh wiki article which teaches to add an entry to /etc/hosts.allow for sshd. I am know that tunneling vnc through sshd is the way to go security wise, however, there are cases where I need to switch on un-encrypted vnc for the purposes of sharing my X11 session with family members. Anyway, my question deals with an entry in the /etc/hosts.allow for gnome's desktop sharing (which is vnc as I understand it). Does anyone know the syntax to allow vnc for any incoming connection (default port of 5900).
I have tried:
vino: ALL
Xvnc: ALL
X11vnc: ALL
None of which worked.
Thanks!

when I don't know what's the name of the process listening to specific port, I always execute
netstat -tnlp
to get the proper processes' names.

Mount: can't find /dev/sda2/mnt in /etc/fstab

I'm trying to install Arch on a virtualbox virtual machine to become familiar with it before I install it on my main system. I've created 4 partitions, dev/sda1=1007kB boot partition, dev/sda2/= 4gb root partition which I am trying to mount, dev/sda3=swap which I've already configure and dev/sda4=1792MB Home which I haven't mounted. I've formatted sda2 and sda4 in ext4, but whenever I run
mount /dev/sda2/mnt
I get an error message saying
mount: can't find /dev/sda2/mnt in /etc/fstab
I've tried to view fstab with the less command but I only got a bunch of tildes (~). I'm fairly new to linux so keeping the explanations simple would be appreciated.

The above post should fix the immediate issue you are posting about - but there is another issue:
VEL0CITY wrote:dev/sda1=1007kB boot partition
Is that a typo? Because that's not big enough for a boot partition. The kernel itself is 3-4 times that size. 100MB is a common starting suggestion for /boot. I can do with quite a bit less than 100MB, but not that much less.

Registering the ACFS filesystem with CRS

Grid version:11.2.0.2 on Solaris 10
I want to register the ACFS filesystem with the CRS. Which option should I use ; Option A or Option B ?
Option A.
From
http://www.unbreakablecloud.com/wordpress/2011/02/01/acfs-file-system-setup/
You can add the file system using the following srvctl command:
#srvctl add filesystem -d /dev/asm/fs1-334 -v FS1 -g ACFSDG -m /fs1 -u oracle
Start the file systems
#srvctl start filesystem -d /dev/asm/fs1-334 -n node1 (please sure to change node1 to whatever your nodename)
When the system gets rebooted the file systems will be automatically mounted by Oracle Clusterware.or
Option B.
Example borrowed from oracle-base
http://www.oracle-base.com/articles/11g/acfs-11gr2.php
After , creating the Disk group, Creating the volume and enabling it. The following commands are run
-- creating the ACFS
/sbin/mkfs -t acfs -b 4k /dev/asm/acfsvol3-301 -n "ASMVOL3"
--- mounting the ACFS
$ /sbin/acfsutil registry -f -a /dev/asm/acfsvol3-301 /u01/app/oracle/acfsmounts/data_acfsvol3
Do these commands (option 2) register ACFS filesystem with CRS ?In option A, I am curious why he is running srvctl from root (I can see # sign ) ?
Another related question:
Is there any advantage in having ACFS registered with CRS ?

Omega3 -
Both options result in a mount point that is managed by CRS. I refer to this as a managed mount point.
The difference really comes down to what you want to do with it.
If you want a mount point that you can use on all nodes of the cluster and that you can create dependencies on, then use srvctl.
If you want a mount point that is node-local, then you can use acfsutil registry.
If you don't have either of those situations, then you can use either.
Generally, I recommend using 'srvctl'.
As pointed out, you can easily create the resource using ASMCA.
The advantage of this method is that you can create other resources, such as for user defined programs, and create STOP and START dependencies on the ACFS resource. This will ensure that the ACFS file system is mounted before those programs stop and start.
Also, keep in mind that if you are planning on putting large numbers of ACFS file systems in the registry, you may run into some timing issues. The ACFS registry resource has a finite TIMEOUT value, and may run out of time to look at all the file systems\volumes and ensure that they are operating as expected. This is another case where the single file system resource has an advantage.
In either case, add it and forget about it - it should just work. :)

[SOLVED] Mount NAS with writing permissions

I've got a MyBook World Edition NAS which i only use from time to time - so i decided to mount it manually.
To mount it convenient i've added the following to my /etc/fstab so i can mount it with "sudo mount /mnt/mybook":
//IPC/Public /mnt/mybook cifs users,noauto,noatime,ip=192.168.1.200,username=**********,password=**********,iocharset=utf8,file_mode=0777,dir_mode=0777
Mounting works well, but i don't get writing permissions.
Shouldn't "file_mode/dir_mode" do the trick?
Last edited by Flylow (2010-08-14 08:59:30)

Flylow wrote:
Thanks for the tip with the external .creds file :-)
1) Don't get the point - need some further explanation
2) Owner is root, i can change it to myself, but as soon the NAS gets mounted the owner changes to root
Does this maybe has to do with "sudo mount ..." Shouldn't I be able to mount without sudo since i added users to fstab?
Ah...
1) means is the share exported as read write execute from the NAS?
2) Since the owner is root:root that may explain your problem. What are the permissions on the share once mounted? I'm guessing 744 or 644?
Instead of the file_mode and dir_mode, try a uid,gid to the mount line and match them up to your user.

"open with" duplicate entries

"at times" using "open with" shows many duplicate entries....reboot fixes it for a while..
I'm still trying to determine what is triggering this.
Any idea? Anyone see this in 10.8? I couldn't find anything searching the forums.

I am not familiar with all the causes of this phenomenon, but it happens to me from time to time, and I know why it is for me. I work with "clone" images all the time with dev work. When a clone is mounted alongside booting into the main volume, Launch Services, which keeps track of applications used to open certain file types, "sees" the other application files on the mounted clone volume, and adds them to the database, resulting in the apparent duplication of "open with" entries.
Resetting the 'Open With' menu will remove duplicates and ghost applications (ones you have deleted) from the list. You reset the 'Open With' menu by rebuilding the Launch Services database your Mac maintains. There are multiple ways to rebuild the Launch Services database, including third-party system utilities like Cocktail and Onyx.
If you don't own a system utility that can rebuild the Launch Services database, don't worry; you can perform the rebuild yourself using Terminal.
Using Terminal to Rebuild the Launch Services Database:
Launch Terminal, located at /Applications/ Utilities/.
For OS X 10.5.x and later, enter the following at the Terminal prompt:
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.fram ework/Support/lsregister -kill -r -domain local -domain system -domain user
I don't know wjhy it is happening for you, but rebuilding the database will at least reset things to normal. The question to ask is whether you have other mounted volumes, say from other systems on your network, that contain Mac Apps.
I have also found a way to keep it from happening (in certain cases, for my dev work). When I create a clone, I also create what is called a "fstab" file entry, in the fstab file. This entry prevents named drives from auto-mounting. So, if I boot to a clone, my main volume on my internal SSD won't mount. Hence, no extraneous Launch Services database entries will created on the clone drive. If however, I boot to my main SSD, and then mount a clone, I don't use any fstab entries on the main SSD. This just means I have to periodically rebuild the Launch Services database. It is way too much trouble keeping fstab entries for all my clone drives on my main SSD. I only use the fstab method on the clones themselves.

ArchLinux mounts filesystem with no entries in /etc/fstab

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