Public bug reported:
"man mount" says:
[CODE]
mount [-l] [-t type]
lists all mounted filesystems (of type type).
The option -l adds the labels in this listing.
[/CODE]
Yet "mount" and "mount -l" do not show my root filesystem "/"
Which of course is mounted.
df, df -h, df -ah don't show it either.
/proc/mounts does show it.
df will show it only if explicitly specified.
"mount /" will also correctly state that it is already mounted.
[CODE]
root@noexcuse:~# cat /proc/mounts
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=1017316k,nr_inodes=215199,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,relatime,size=410772k,mode=755 0 0
/dev/disk/by-uuid/f2a55331-1549-4c25-8aa9-204275068771 / btrfs
rw,noatime,nospace_cache 0 0
none /sys/fs/fuse/connections fusectl rw,relatime 0 0
none /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/kernel/security securityfs rw,relatime 0 0
none /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
none /run/shm tmpfs rw,nosuid,nodev,relatime 0 0
none /run/user tmpfs rw,nosuid,nodev,noexec,relatime,size=102400k,mode=755 0 0
/dev/sdc1 /winloader fuseblk
rw,nosuid,nodev,noatime,user_id=0,group_id=0,allow_other,blksize=4096 0 0
/dev/sdc2 /windows fuseblk
rw,nosuid,nodev,noatime,user_id=0,group_id=0,allow_other,blksize=4096 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc
rw,nosuid,nodev,noexec,relatime 0 0
gvfsd-fuse /home/bkw/.gvfs fuse.gvfsd-fuse
rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
root@noexcuse:~#
root@noexcuse:~# mount -l
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
/dev/sdc1 on /winloader type fuseblk
(rw,nosuid,nodev,noatime,allow_other,blksize=4096) [System Reserved]
/dev/sdc2 on /windows type fuseblk
(rw,nosuid,nodev,noatime,allow_other,blksize=4096)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
(rw,noexec,nosuid,nodev)
gvfsd-fuse on /home/bkw/.gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=bkw)
root@noexcuse:~#
root@noexcuse:~# ls -lL /dev/disk/by-uuid/f2a55331-1549-4c25-8aa9-204275068771
brw-rw---- 1 root disk 8, 0 Oct 10 16:38
/dev/disk/by-uuid/f2a55331-1549-4c25-8aa9-204275068771
root@noexcuse:~# ls -l /dev/disk/by-uuid/f2a55331-1549-4c25-8aa9-204275068771
lrwxrwxrwx 1 root root 9 Oct 10 16:38
/dev/disk/by-uuid/f2a55331-1549-4c25-8aa9-204275068771 -> ../../sda
root@noexcuse:~#
root@noexcuse:~# df -ah
Filesystem Size Used Avail Use% Mounted on
proc 0 0 0 - /proc
sysfs 0 0 0 - /sys
udev 994M 4.0K 994M 1% /dev
devpts 0 0 0 - /dev/pts
tmpfs 402M 1008K 401M 1% /run
/dev/sdc1 350M 203M 148M 58% /winloader
/dev/sdc2 56G 24G 33G 42% /windows
binfmt_misc 0 0 0 - /proc/sys/fs/binfmt_misc
gvfsd-fuse 0.0K 0.0K 0.0K - /home/bkw/.gvfs
root@noexcuse:~#
root@noexcuse:~# df -h /
Filesystem Size Used Avail Use% Mounted on
- 31G 16G 14G 55% /
root@noexcuse:~#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/sdc1 Windows 8 loader
UUID=E8C6C56EC6C53D96 /winloader auto noatime 0 0
# /dev/sdc2 Windows 8 C:
UUID=12E2D580E2D5688D /windows auto noatime 0 0
# memorystick btrfs 32g
UUID=f2a55331-1549-4c25-8aa9-204275068771 / auto noatime 0 0
[/CODE]
"/" is a btrfs filesystem on a memorystick card in a laptop card reader
slot, the entire raw card device, IE "/dev/sda" not a partition, shown
by the /proc/mounts and "ls -l" output above.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: mount 2.20.1-5.1ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-17.27-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
ApportVersion: 2.6.1-0ubuntu3
Architecture: i386
Date: Wed Oct 10 18:28:51 2012
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: util-linux
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: util-linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 quantal
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https://bugs.launchpad.net/bugs/1065303
Title:
mount does not display all mounted filesystems, including "/"
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