1 Mount 2 Locations

pendal · 08-31-2009, 02:00 PM

I am working on updating a some software in our building that uses a few mounted drives over the network.

they are mounted using cifs (the shares are from a windows machine).

I want to change the mounting structure a bit to optimize some code.

is there anyway I can temporarily make the mount show up in two places

/mnt/oldStorage/mountName (original location)

and

/mnt/storage/mountName (new location)

if i try to mount it a second time it tells me it's already mounted.

I was hoping to optimize the software code and then when it's all working remove old mount points.

is there anyway to make that mount show up in two places at once?
and then also ... what would i need to do to correctly remove the old mount point and then the "link" to it?

I know how to add the new new mounts later.

Thanks in advance,
-P

****sorry i realized this is probably the wrong forum for this .. please move it if you need to****

catkin · 08-31-2009, 02:04 PM

How about

Code:

/bin/ln -s /mnt/oldStorage/mountName /mnt/storage/mountName

or the other way around if you prefer (but the mount must be on the actual directory, not on the symlink)

pendal · 08-31-2009, 02:08 PM

ok cool ...

so i'm thinking i will wait until later tonight after hours and re-mount the drives under the correct new locations.

then issue the ln to the old directories.

if the eastern side of the U.S. melts away ... I did something wrong

Thanks,
-P

pwc101 · 08-31-2009, 02:11 PM

You can remount a mounted directory using the bind option. See the mount manpage:

Code:

       The bind mounts.
              Since Linux 2.4.0 it is possible to remount part of the file
              hierarchy somewhere else. The call is
                     mount --bind olddir newdir