Re: finding root filesystem of a subvolume?

[Ulli Horlacher <framstag@rus.uni-stuttgart.de>]

On Tue 2017-08-22 (09:37), Austin S. Hemmelgarn wrote:

> > root@fex:~# df -T /local/.backup/home
> > Filesystem     Type  1K-blocks      Used Available Use% Mounted on
> > -              -    1073740800 104252160 967766336  10% /local/.backup/home
> 
> Hmm, now I'm really confused, I just checked on the Ubuntu 17.04 and 
> 16.04.3 VM's I have (I only run current and the most recent LTS 
> version), and neither of them behave like this.

I have this kind of output on all of my Ubuntu hosts:

root@moep:~# grep PRETTY_NAME /etc/os-release
PRETTY_NAME="Ubuntu 16.04.3 LTS"

root@moep:~# df -T /usb/UF/tmp/blubb
Filesystem     Type 1K-blocks    Used Available Use% Mounted on
-              -     12581888 3690524   7253700  34% /usb/UF/tmp/blubb

root@moep:~# btrfs subvolume show /usb/UF/tmp/blubb
/usb/UF/tmp/blubb
        Name:                   blubb
        UUID:                   ecf8c804-d4a3-9948-89fe-b0c1971c25cb
        Parent UUID:            -
        Received UUID:          -
        Creation time:          2017-08-22 12:54:16 +0200
        Subvolume ID:           262
        Generation:             23
        Gen at creation:        22
        Parent ID:              5
        Top level ID:           5
        Flags:                  -
        Snapshot(s):

root@moep:~# dpkg -l | grep btrfs
ii  btrfs-tools                                 4.4-1ubuntu1                                 amd64        Checksumming Copy on Write Filesystem utilities


-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<0c35fba9-a514-31dd-a703-17f4727ed229@gmail.com>