You can try following (untested): 1. mount glusterfs volume to /mnt/g 2. mount --bind /mnt/g /mnt/g_ro 3. mount -o remount,ro /mnt/g_ro
You can try following (untested): 1. mount glusterfs volume to /mnt/g 2. mount --bind /mnt/g /mnt/g_ro 3. mount -o remount,ro /mnt/g_ro