wget2nand didnt check the exit status after copying the kernel, if the
copying failed for some reason ( for example not enougs space on the
kernel partition) it simply continued extracting the rootfs.
I also changed the filename, which wget2nand trys to download (
.tar.gz instead of .tgz ).
Signed-off-by: Marko Foerster <mrkfoerster@googlemail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21444 3c298f89-4303-0410-b956-a3cf2f4a3e73
