I noticed that too, in wheezy 7.3 (powerpc). No initrd (but a self-compiled kernel) is used. And /etc/mtab is now a symlink to /proc/mounts:
$ head -2 /proc/mounts rootfs / rootfs rw 0 0 /dev/root / ext4 rw,nodev,relatime,data=ordered 0 0 $ grep ext4 /etc/fstab /dev/sda6 / ext4 nodev,relatime 0 1 $ cat /proc/cmdline root=/dev/sda6 ro rootfstype=ext4 $ df -h | head -3 Filesystem Size Used Avail Use% Mounted on rootfs 5.4G 3.6G 1.6G 70% / /dev/root 5.4G 3.6G 1.6G 70% / => Note: #656333 was titled "Please ignore rootfs in df output" but was closed when coreutils-8.20 somehow turned the overly long /dev/disk/by-uuid/... output in "df" into /dev/sdX again. Wheezy has coreutils-8.13 now. $ ls /etc/rcS.d/ README S05keymap.sh S08checkroot.sh S11cryptdisks S15udev-mtab S19mountnfs.sh S23screen-cleanup S01mountkernfs.sh S06keyboard-setup S09cryptdisks-early S12checkfs.sh S15urandom S20mountnfs-bootclean.sh S23x11-common S02udev S07hdparm S10checkroot-bootclean.sh S13mountall.sh S16networking S21console-screen.sh S24stop-bootlogd-single S03mountdevsubfs.sh S07hostname.sh S10kmod S14mountall-bootclean.sh S17rpcbind S22console-setup S04bootlogd S07hwclock.sh S10mtab.sh S15procps S18nfs-common S23bootmisc.sh -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org