Public bug reported:
Ubuntu 15.04
mount:
Installed: 2.25.2-4ubuntu2
Candidate: 2.25.2-4ubuntu2
Version table:
*** 2.25.2-4ubuntu2 0
500 http://us.archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages
100 /var/lib/dpkg/status
System has LVM on SSD standard install ext4 filesystem.
(/dev/mapper/ubuntu--vg-root)
mdadm RAID5 3 disks, btrfs filesystem (/dev/md127p1)
RAID5 is mounted at /mnt/raid at boot.
---
Bind mounts only display the device mount, not the from directory.
The mount works, but the mtab entry is incorrect.
# From LVM device, to LVM device.
mount -o bind /home/rfoos /srv/nfs4/homes
# From Raid device, to LVM device
mount -o bind /mnt/raid/var/lib/libvirt /var/lib/libvirt
# With corrected fstab entries (below) mount -a does work
mount -a
--- /etc/mtab entries
/dev/mapper/ubuntu--vg-root /srv/nfs4/homes ext4
rw,relatime,errors=remount-ro,data=ordered 0 0
/dev/md127p1 /var/lib/libvirt btrfs rw,nosuid,nodev,relatime,space_cache 0 0
/dev/md127p1 /srv/nfs4/share btrfs rw,nosuid,nodev,relatime,space_cache 0 0
--- mount list of mounts
/dev/md127p1 on /mnt/raid type btrfs (rw,nosuid,nodev,relatime,space_cache)
/dev/md127p1 on /var/lib/libvirt type btrfs
(rw,nosuid,nodev,relatime,space_cache)
/dev/mapper/ubuntu--vg-root on /srv/nfs4/homes type ext4
(rw,relatime,errors=remount-ro,data=ordered)
--- corrected fstab entries.
# mount raid device
/dev/md127p1 /mnt/raid btrfs rw,nosuid,nodev,relatime,space_cache 0 0
# corrected entries
/mnt/raid/var/lib/libvirt /var/lib/libvirt none bind 0 0
/home/rfoos /srv/nfs4/homes none bind 0 0
** Affects: util-linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1474958
Title:
bind mount produces incorrect entry in mtab
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