Linux mount: Bind or Remount Part Of File Hierarchy At Another Directory

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How do I mount the contents of /home/multimedia in two places under Linux operating systems?

If you are using Linux kernel v2.4.0+, you can remount part of the file hierarchy somewhere else using the following mount command syntax. This is useful for NFS servers in /exports. You must type the following commands as the root user. The syntax is

mount --bind /path/to/olddir /path/to/newdir
mount -B olddir newdir

The syntax for /etc/fstab entry is:

/olddir /newdir none bind

In this example, mount /home/multimedia/mp3 and /home/multimedia/videos as follows:
# mkdir -p /exports/{music,videos}
# mount --bind /home/multimedia/mp3 /exports/music
# mount --bind /home/multimedia/videos /exports/videos

Verify new settings:
# mount
# df -a
# mount | egrep -i --color 'music|videos'

Update /etc/fstabe file as follows:
# vi /etc/fstab
Append the following:

/home/multimedia/mp3 /exports/music none bind
/home/multimedia/videos /exports/videos

Save and close the file.

See also:
  • man page mount(8) command.

Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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3 comment

  1. Thanks ! Very useful for restricted chrooted account too.

    I’ve set up an sftp chrooted account and wanted to share a sub-directory from outside of the root :)

    Wonderful now.

  2. You can also add this :

    # mount –bind /mnt/sourcedir targetdir
    # mount -o remount,ro targetdir

    To have a read-only access :)

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