On Fri, 2010-12-17 at 22:08 -0600, Rob Landley wrote: > On Thursday 16 December 2010 09:18:31 Artem Bityutskiy wrote: > > On Wed, 2010-12-15 at 00:31 -0600, Rob Landley wrote: > > > That is awesome and I'm not finding any documentation on it... Ah: > > > > > > > > > http://wiki.maemo.org/Modifying_the_root_image#Block_device_emulating_an_ > > >MTD_device > > > > > > Wow that's awkward. Let's see, that says... > > > > > > mknod /tmp/mtdblock0 b 31 0 > > > modprobe loop > > > losetup /dev/loop0 rootfs.jffs2 > > > modprobe mtdblock > > > modprobe block2mtd > > > # Note the ,128KiB is needed (on 2.6.26 at least) to set the > > > # eraseblock size. > > > echo "/dev/loop0,128KiB" > /sys/module/block2mtd/parameters/block2mtd > > > modprobe jffs2 > > > mount -t jffs2 /tmp/mtdblock0 /media/jffs2 > > > > You should not need mtdblock in modern kernels, it is legacy. You should > > be abole to mount jffs2 on top of mtd0 with > > > > mount -t jffs2 mtd0 /media/jffs2 > > How does one associate the mtd0 with the loopback device? (I thought mtd0 > was > for actual flash memory.)
You do not need loopback devices, just flash your rootfs.jffs2 directly to /dev/mtd0, e.g., with nandwrite. You can emulate nand with nandsim. But your method should also work, I just wanted to point that JFFS2 does not depend on mtdblock in any way. -- Best Regards, Artem Bityutskiy (Битюцкий Артём) ------------------------------------------------------------------------------ Lotusphere 2011 Register now for Lotusphere 2011 and learn how to connect the dots, take your collaborative environment to the next level, and enter the era of Social Business. http://p.sf.net/sfu/lotusphere-d2d _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
