remounting ext3 file systems

Stephen Samuel darkonc at
Wed Oct 31 02:32:25 UTC 2007

As long as you don't don't set any other options which would disrupt with
what the running processes are doing with the files on that filesystem, you
should be fine.

(for example: remounting the system readonly while files were open rw would
be problematic for the processes involved, and I don't know what would
happen if  you remounted a filesystem nodev while people had devices open on

On 10/30/07, Hans Holt <h.m.holt at> wrote:
> Hi,
> I want to remount a mounted ext3 file system. Typically, the "mount -o
> remount <mount-point>" option is used when an already mounted
> read-only file system is remounted as read+write. Is it considered
> safe to remount a file system already mounted as read+write with open
> files that are in use ? I want to change some mount options without
> killing processes accessing the file systems and unmounting the file
> system or restarting the machine.

Stephen Samuel
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