getting the CF to be root

So, the UsbStorageHowto works pretty well. Basically, the steps I used were:

mount /dev/scsi/host0/bus0/target0/lun0/part1 /mnt
mkdir /tmp/root
mount -o bind /rom /tmp/root
cp /tmp/root/* /mnt -a
umount /tmp/root
umount /mnt 
cd /sbin
mv init init.old
vi init
chmod a+x init

and here's my version of init

#!/bin/sh
boot_dev="/dev/scsi/host0/bus0/target0/lun0/part1"
for module in usbcore usb-ohci scsi_mod sd_mod usb-storage jbd ext3; do {
        insmod $module
}; done
sleep 4s
mount "$boot_dev" /mnt
[ -x /mnt/sbin/init ] && {
        mount -o move /proc /mnt/proc &&         pivot_root /mnt /mnt/mnt && {
                mount -o move /mnt/dev /dev
                mount -o move /mnt/tmp /tmp
                mount -o move /mnt/jffs2 /jffs2 2>&-
                mount -o move /mnt/sys /sys 2>&-
        }
}
exec /bin/busybox init

Of course, what's not mentioned is that your system is reset to as if you just installed OpenWrt. So you have to set the root pw, update ipkg.conf, install pkgs, etc. etc. as per my last blog post.

BTW, after it's all said and done, the filesystems show up as follows:

root@OpenWrt:~# df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/root                 1024      1024         0 100% /mnt/rom
/dev/mtdblock/4           6272      1304      4968  21% /mnt
none                     15276        36     15240   0% /tmp
/dev/scsi/host0/bus0/target0/lun0/part1   121203      8583    106362   7% /mnt/mnt/disc0_1
/dev/scsi/host0/bus0/target0/lun0/part1   121203      8583    106362   7% /
root@OpenWrt:~#

With 32MB of RAM and 128MB of disk... it's 1990 all over again!

Tony