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seVes
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Joined: 06 Jan 2011
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PostPosted: Mon Oct 17, 2011 10:19 am    Post subject: Doppelter Eintrag in `df -h` & `mount` Reply with quote

Servus!

Hab durch Zufall gesehen, dass meine home-directory 2x unter `mount` bzw. `df` auftaucht.
Code:
edge ~ # df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mapper/_dev_dm_6
                      10320180   6484448   3835732  63% /home/alex
/dev/dm-6             10320180   6484448   3835732  63% /home/alex

Code:
edge ~ # mount
/dev/mapper/_dev_dm_6 on /home/alex type ext3 (rw,noatime,data=journal,acl)
/dev/dm-6 on /home/alex type crypt (rw,noatime,data=journal,acl)

Warum?

/home/alex ist eine verschlüsselte Partition. Nutze kernel-3.0.6-gentoo.
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firefly
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PostPosted: Mon Oct 17, 2011 12:03 pm    Post subject: Reply with quote

kann es sein, dass einer der beiden einträge ein symlink auf den anderen ist?
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seVes
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PostPosted: Mon Oct 17, 2011 8:38 pm    Post subject: Reply with quote

Hatte erst jetzt Feierabend (Spätschicht) - sry.

Hab mal geschaut, offenbar ja - wüsste nicht, dass ich das angelegt habe...
Code:
edge mapper # pwd
/dev/mapper
edge mapper # ls -ahl
total 0
drwxr-xr-x  2 root root     220 Oct 16 23:24 .
drwxr-xr-x 20 root root    4.5K Oct 17 22:34 ..
lrwxrwxrwx  1 root root       7 Oct 16 23:24 _dev_dm_6 -> ../dm-7
crw-------  1 root root 10, 236 Oct 17 01:24 control
lrwxrwxrwx  1 root root       7 Oct 16 23:24 rootvg-distfiles -> ../dm-0
lrwxrwxrwx  1 root root       7 Oct 16 23:24 rootvg-homealex -> ../dm-6
lrwxrwxrwx  1 root root       7 Oct 16 23:24 rootvg-opt -> ../dm-1
lrwxrwxrwx  1 root root       7 Oct 16 23:24 rootvg-portage -> ../dm-2
lrwxrwxrwx  1 root root       7 Oct 16 23:24 rootvg-src -> ../dm-3
lrwxrwxrwx  1 root root       7 Oct 16 23:24 rootvg-usr -> ../dm-4
lrwxrwxrwx  1 root root       7 Oct 16 23:24 rootvg-var -> ../dm-5

Demnach kann ich _dev_dm_6 doch löschen oder!?

Edit:
Löschen bringt nichts, beim nächsten Reboot alles wieder da. Zudem nach dem Löschen nicht mehr gemountet werden kann. Dennoch kapier ich obiges Phänomen nicht... Zumal "ls -al /dev/mapper/" genau das gleiche verlinkt wie "ls -al /dev/rootvg". rootvg ist meine volume-group... Schon komisch das ganze...
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Max Steel
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PostPosted: Tue Oct 18, 2011 8:10 am    Post subject: Reply with quote

Möglicherweiße mountest du _dev_dm_6 welches auf dm-7 verlinkt ist (warum auch immer...)
mount mountet zwar nur _dev_dm_6 erkennt aber dass das ein Symlink auf dm-7 ist und lässt dann beide anzeigen...

Allerdings versteh ich das selber auch nicht ganz.

Oder du hast irgendwo eine vergessene /etc/fstab Eintrag zusammen mit einem entsprechenden /etc/udev/rules.d/ eintrag.

Grep die DAteien mal nach _dev_dm_6
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seVes
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PostPosted: Wed Oct 19, 2011 10:49 am    Post subject: Reply with quote

Das grepen hat irgendwie nichts gebracht - kam kein Ergebnis oder ich habs falsch benutzt.

So hab ich gesucht...
Code:
find /usr/ -type f -exec grep -q '_dev_dm_6' {} \; -a -exec ls -l {} \;


/etc/fstab:
Code:
# /etc/fstab: static file system information.
#
# <fs>            <mountpoint>                    <type>    <opts>                                      <dump/pass>

/dev/sda1                       /                       ext3      data=journal,noatime                        0 0
shm                             /dev/shm                tmpfs     nodev,nosuid,noexec                         0 0
/dev/rootvg/usr                 /usr                    ext3      data=journal,acl,noatime                    0 0
/dev/rootvg/src                 /usr/src                reiserfs  notail,acl                                  0 0
/dev/rootvg/portage             /usr/portage            reiserfs  notail,acl                                  0 0
/dev/rootvg/distfiles           /usr/portage/distfiles  ext3      data=journal,acl,noatime                    0 0
/dev/rootvg/var                 /var                    ext3      data=journal,acl,noatime                    0 0
/dev/rootvg/opt                 /opt                    reiserfs  acl,notail                                  0 0
tmpfs                           /var/tmp/portage        tmpfs     rw,noatime,nosuid,nodev,size=3000M          0 0
tmpfs                           /tmp                    tmpfs     rw,noatime,noexec,nosuid,nodev,size=500M    0 0
obexfs#-b30:38:55:7D:61:43      /media/nokia-c5-00      fuse      noauto,uid=1000,gid=1007,allow_other        0 0


Sonstige Ideen?
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py-ro
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PostPosted: Wed Oct 19, 2011 11:18 am    Post subject: Reply with quote

Gib bitte mal den Inhalt von /proc/mounts
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seVes
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PostPosted: Wed Oct 19, 2011 11:20 am    Post subject: Reply with quote

/proc/mounts:
Code:
edge doc # cat /proc/mounts
rootfs / rootfs rw 0 0
/dev/root / ext3 rw,relatime,errors=continue,barrier=0,data=journal 0 0
tmpfs /run tmpfs rw,nosuid,nodev,relatime,mode=755 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
rc-svcdir /lib64/rc/init.d tmpfs rw,nosuid,nodev,noexec,relatime,size=1024k,mode=755 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,nosuid,nodev,noexec,relatime 0 0
udev /dev tmpfs rw,nosuid,relatime,size=10240k,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
shm /dev/shm tmpfs rw,nosuid,nodev,noexec,relatime 0 0
/dev/mapper/rootvg-usr /usr ext3 rw,noatime,errors=continue,acl,barrier=0,data=journal 0 0
/dev/mapper/rootvg-src /usr/src reiserfs rw,relatime,notail,acl 0 0
/dev/mapper/rootvg-portage /usr/portage reiserfs rw,relatime,notail,acl 0 0
/dev/mapper/rootvg-distfiles /usr/portage/distfiles ext3 rw,noatime,errors=continue,acl,barrier=0,data=journal 0 0
/dev/mapper/rootvg-var /var ext3 rw,noatime,errors=continue,acl,barrier=0,data=journal 0 0
/dev/mapper/rootvg-opt /opt reiserfs rw,relatime,acl,notail 0 0
tmpfs /var/tmp/portage tmpfs rw,nosuid,nodev,noatime,size=3072000k 0 0
tmpfs /tmp tmpfs rw,nosuid,nodev,noexec,noatime,size=512000k 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0
/dev/mapper/_dev_dm_6 /home/alex ext3 rw,noatime,errors=continue,acl,barrier=0,data=journal 0 0

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