Not to thump my own drum, but as I have posted previously (https://forum.openwrt.org/viewtopic.php … 52#p121452), IF you have the lzma-enabled mkfs.jffs2 from a trunk build (not necessary to build images, just the host tools) you can download the buildbot rootfs.tar.gz and build the needed image (openwrt-kirkwood-Dockstar-jffs2-128k.img) yourself:
0) create a new build directory, cd to it, create a directory ram, cd to it, and untar the snapshot file openwrt-kirkwood-rootfs.tar.gz:
mkdir ram
cd ram
tar xzf ../openwrt-kirkwood-rootfs.tar.gz
cd ..
1) run the following:
mkfs.jffs2 --little-endian --squash -v -X rtime -X lzma --compression-mode=size -x zlib --pagesize=0x800 --no-cleanmarkers --pad -e 128KiB -o root.jffs2-128 -d ram
2) add header to the intermediary file root.jffs2-128k:
echo -ne '\xde\xad\xc0\xde' >> root.jffs2-128k
3) create the required rootfs image:
dd if=root.jffs2-128k of=openwrt-kirkwood-Dockstar-jffs2-128k.img bs=2048 conv=sync
I have used this technique on two reflashs of my Dockstar and everything works perfectly.