> On October 30, 2013 at 4:59 PM Phillip Susi <psusi@xxxxxxxxxx> wrote:
> > On 10/30/2013 11:39 AM, Bernhard Voelker wrote:
> > yes, df(1) is from coreutils. ;-)
> >
> > However, latest df(1) will skip such bind mounts per default - but
> > now because of some 'bind' information (which is not available
typo: s/now/not/, of course.
> > anyway), but just because it skips "duplicates" based on the
> > device numbers. For the same device number, it will output that
> > with the shortest mount point name. You have to use -a to see all.
>
> So is mount wrong for recording the filesystem type as 'none' or not?
Where do you see 'none'?
$ df /home
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdb 10321208 1233056 8563864 13% /home
$ mkdir /tmp/home
$ mount -o bind /home /tmp/home
$ df -a | grep home
/dev/sdb 10321208 1233056 8563864 13% /home
/dev/sdb 10321208 1233056 8563864 13% /tmp/home
$ mount | grep home
/dev/sdb on /home type ext4 (rw,relatime,data=ordered)
/dev/sdb on /tmp/home type ext4 (rw,relatime,data=ordered)
$ grep home /proc/mounts /proc/self/mountinfo /proc/self/mounts
/proc/mounts:/dev/sdb /home ext4 rw,relatime,data=ordered 0 0
/proc/mounts:/dev/sdb /tmp/home ext4 rw,relatime,data=ordered 0 0
/proc/self/mountinfo:40 21 8:16 / /home rw,relatime shared:24 - ext4 /dev/sdb
rw,data=ordered
/proc/self/mountinfo:109 21 8:16 / /tmp/home rw,relatime shared:24 - ext4
/dev/sdb rw,data=ordered
/proc/self/mounts:/dev/sdb /home ext4 rw,relatime,data=ordered 0 0
/proc/self/mounts:/dev/sdb /tmp/home ext4 rw,relatime,data=ordered 0 0
[That was on kernel 3.7.10 of openSUSE-12.3,
mount/df built from {util-linux,coreutils}.git]
Have a nice day,
Berny
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