I have one embedded device(mips R4000) with Kernel-2.4.25 ,it boots as root filesystem using JFFS2 format(mtdblock1), then in kernel shell , I would like to re-mount root filesystem using RAMDISK ext2 filesystem ,but I didn't umount the JFFS2 root filesystem ,I want to use 'fuser' to check who is using / root filesytem ,but busybos doesn't support this 'fuser' shell .
How to do for re-mounting root filesystem ,maybe you may give me some clue .
Thank you in advance