I've spent few hours today trying to understand extroot. I've failed :( Of course I was trying to use wiki pages: http://wiki.openwrt.org/doc/howto/extroot http://wiki.openwrt.org/doc/uci/fstab
1) Main question Is the following sentence true at all? > The configuration of extroot is very simple and is done entirely in > /etc/config/fstab. It seems that /etc/init.d/fstab uses "block umount" and "block mount" only. I was reading the source code (fstools-2014-12-15/block.c) and it seems that "block mount" doesn't really handle extroot at all. I think some kind of extroot support is provided in "block extroot", but I don't fully understand it. It seems to be looking for partitions "rootfs" and then "rootfs_data" ignoring whatever is set in /etc/config/fstab. If "mount extroot" is really supposed to be used, is there any way to point some external device (without MTD partitions) as extroot? I got confused. 2) UBI and UBIFS support I guess it's too new to be documented and I don't understand it much from the code. It seems that if there isn't "rootfs" MTD partition, then the code will look for "rootfs" UBI volume. The same applies to the "rootfs_data". But what if my serial flash contains "rootfs" + "rootfs_data" partitions and I still want to use some UBI volume on another flash (NAND one)? -- Rafał _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
