On Wed, 2009-07-01 at 18:43 +0800, tommy wrote: > my kernel command line is booting from ubif0_0 (rootfs),can't mount > again ,because ubifs0_0 is also in / Here you may find a way to mount UBIFS via kernel boot parameters: http://www.linux-mtd.infradead.org/faq/ubifs.html#L_mount_ubifs -- Best regards, Artem Bityutskiy (Битюцкий Артём)