[Bug 378402] Re: mount list incorrect

[Phillip Susi]

If you clone a partition with dd and intend to keep both connected, you
must change the uuid of one of them with tune2fs.


** Changed in: util-linux (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/378402

Title:
  mount list incorrect

Status in “util-linux” package in Ubuntu:
  Invalid

Bug description:
  I installed ubuntu onto my laptop containing 2 identical hard disks.
  After some days I noticed one harddisk had some bad sectors so i
  decided to copy the whole content of the first hd to second hd by
  using the following command "dd if=/dev/sda of=/dev/sdb" from a live
  boot. After that i swapped the hd, in the hope to other hd would be
  used to boot from.

  But when i boot my system it some times mount the first hd to "/" and some time it mounts the second hd to "/".
  At an certain moment i needed the content of the other hd, because it mounted the "wrong" one. So I though let do mount /dev/sdb1 /mnt, but to my supprise did i got the same content. So i tried mount /dev/sda1 /mnt after doing a umount /mnt. Now i mounted the other disk, because the content was different. 
  But when i type mount i get the following result.

  /dev/sda1 on / type ext3 (rw,relatime,errors=remount-ro)
  tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
  proc on /proc type proc (rw,noexec,nosuid,nodev)
  sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
  varrun on /var/run type tmpfs (rw,nosuid,mode=0755)
  varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
  udev on /dev type tmpfs (rw,mode=0755)
  tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
  devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
  fusectl on /sys/fs/fuse/connections type fusectl (rw)
  lrm on /lib/modules/2.6.28-11-generic/volatile type tmpfs (rw,mode=755)
  securityfs on /sys/kernel/security type securityfs (rw)
  binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
  gvfs-fuse-daemon on /home/jesse/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=jesse)
  /dev/sda1 on /mnt type ext3 (rw)

  as you can see /dev/sda1 is mounted twice to different mount points
  and both mount point contain different data.

  I'am using ubuntu version 9.04

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