df's output shows this on a standard run(df with no flags):
Filesystem 1K-blocks Used Available Use% Mounted on
udev 1953632 4 1953628 1% /dev
tmpfs 400436 1216 399220 1% /run
/dev/sda1 957218452 302330152 606241340 34% /
none 4 0 4 0% /sys/fs/cgroup
none 5120 0 5120 0% /run/lock
none 2002168 8 2002160 1% /run/shm
none 102400 4 102396 1% /run/user
/dev/sdb1 957218452 302510240 606061252 34% /mnt/bkup/device2
But when I mount an external USB disk that's on /dev/sdc1, df shows this
output:
Filesystem 1K-blocks Used Available Use% Mounted on
udev 1953632 4 1953628 1% /dev
tmpfs 400436 1272 399164 1% /run
/dev/sdc1 957218452 302334136 606237356 34% /
none 4 0 4 0% /sys/fs/cgroup
none 5120 0 5120 0% /run/lock
none 2002168 8 2002160 1% /run/shm
none 102400 4 102396 1% /run/user
/dev/sdb1 957218452 302498156 606073336 34% /mnt/bkup/device2
/dev/sdc1 957218452 302564064 606007428 34% /mnt/bkup/externaldevice
The filesystem of "/" has mysteriously changed (in appearance) to
/dev/sdc1?! All I did was mount the /dev/sdc1 device. In fact,
/dev/sdc1 is ONLY mounted at /mnt/bkup/externaldevice, and the mounted
filesystem on "/" is still /dev/sda1. I tested by writing a couple of
files, plus mount shows the correct info:
/dev/sda1 on / type ext4 (rw,errors=remount-ro)
/dev/sdb1 on /mnt/bkup/device2 type ext4 (rw)
If I unmount /mnt/bkup/externaldevice, df still shows /dev/sdc1 as the
"/" filesystem for a small amount of time (10-20 seconds) and then it
goes back to the correct filesystem of /dev/sda1.
What is going on?? This only happened after upgrading to the package of
coreutils mentioned in the subject, it was not doing this previously.
Also, to note, the first two lines of the df output regarding udev and
tmpfs did not appear until this version either. I did see in the
changelog that df was updated to display some additional information, so
perhaps it has to do with that??
-David
