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How to remount as read-write a specific mount of device? (one folder) The file is "Read-only file system", rw-r-r, so it not allow to change permissions. I need to replace that file, then change permissions back to read-only. I know command mount -o rw,remount [destination folder]I know this method is unstable, and may cause complications (every mount will get changed). So I must be sure that this will remount as read-write only a specific destination folder, not every mount of the device. I need do this on running system, not test environment. Embedded linux system. Is that possible? Path to folder: /etc/foo/bar I need remount /bar folder. EDIT: mount rootfs on / type rootfs (rw) /dev/root on / type squashfs (ro) proc on /proc type proc (rw) ramfs on /var type ramfs (rw) sysfs on /sys type sysfs (rw) tmpfs on /dev type tmpfs (rw) devpts on /dev/pts type devpts (rw) /dev/mtdblock4 on /nvram type jffs2 (rw)output of cat /proc/mounts cat /proc/mounts rootfs / rootfs rw 0 0 /dev/root / squashfs ro 0 0 proc /proc proc rw 0 0 ramfs /var ramfs rw 0 0 sysfs /sys sysfs rw 0 0 tmpfs /dev tmpfs rw 0 0 devpts /dev/pts devpts rw 0 0 /dev/mtdblock4 /nvram jffs2 rw 0 0remount command ls -la total 6 drwxr-xr-x 2 root 0 98 Jan 18 2011 . drwxrwxr-x 7 root 0 105 Feb 10 2011 .. -rw-r--r-- 1 root 0 1052 Jan 18 2011 file1 -rw-r--r-- 1 root 0 270 Jan 18 2011 file2 -rw-r--r-- 1 root 0 1088 Jan 18 2011 file3 -rw-r--r-- 1 root 0 270 Jan 18 2011 file4 mount -o rw,remount /etc/foo/bar mount: can't find /etc/foo/bar in /proc/mounts |
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