The new symlink on Debian,
$ ls -og /etc/mtab
lrwxrwxrwx 1 12 12-23 22:00 /etc/mtab -> /proc/mounts
Has caused
$ df
Filesystem 1K-blocks Used
Available Use% Mounted on
rootfs 1071468 287940
729100 29% /
udev 248048 0
248048 0% /dev
tmpfs 50564 372
50192 1% /run
/dev/disk/by-uuid/551e44e1-2cad-42cf-a716-f2e6caf9dc78 1071468 287940
729100 29% /
tmpfs 101128 712
100416 1% /tmp
tmpfs 101128 0
101128 0% /run/shm
/dev/sda6 4270273 3711316
341987 92% /home
/dev/sda7 5341549 4336289
733858 86% /var
/dev/sda8 6406856 3024600
3056800 50% /usr
output to 1) repeat / twice, 2) give the long name for /.
This should be reproducible for anyone who has used standard grub and thus has
$ grep -h UUID /boot/grub/grub.cfg /proc/cmdline
matches. More details in
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=653073 .