Hi,

Building kamikaze AR7 images from r5626 gives a set of (mostly) zero-filled firmware images for devices, with a sErCoMm header.

For example, the Netgear DG834 image (dump with hexdump -C):

00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
003dffb0  ff ff 73 45 72 43 6f 4d  6d 00 00 00 00 44 47 38  |..sErCoMm....DG8|
003dffc0  33 34 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |34..............|
003dffd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 41  |...............A|
003dffe0  00 37 32 00 00 00 00 00  00 00 00 31 19 00 00 00  |.72........1....|
003dfff0  00 73 45 72 43 6f 4d 6d  ff ff ff ff 44 0d ff ff  |.sErCoMm....D...|
003e0000

The JFFS2 image is similar:

00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
003dffb0  ff ff 73 45 72 43 6f 4d  6d 00 00 00 00 44 47 38  |..sErCoMm....DG8|
003dffc0  33 34 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |34..............|
003dffd0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 41  |...............A|
003dffe0  00 37 32 00 00 00 00 00  00 00 00 31 19 00 00 00  |.72........1....|
003dfff0  00 73 45 72 43 6f 4d 6d  ff ff ff ff 44 0d ff ff  |.sErCoMm....D...|
003e0000

The generic AR7 image, however, has built correctly from the looks of things (openwrt-ar7-2.4-squashfs.bin):

...snip...
00000d00  1f 00 00 00 4c 61 75 6e  63 68 69 6e 67 20 6b 65  |....Launching ke|
00000d10  72 6e 65 6c 20 64 65 63  6f 6d 70 72 65 73 73 6f  |rnel decompresso|
00000d20  72 2e 0a 00 4b 65 72 6e  65 6c 20 64 65 63 6f 6d  |r...Kernel decom|
00000d30  70 72 65 73 73 6f 72 20  77 61 73 20 73 75 63 63  |pressor was succ|
00000d40  65 73 73 66 75 6c 20 2e  2e 2e 20 6c 61 75 6e 63  |essful ... launc|
00000d50  68 69 6e 67 20 6b 65 72  6e 65 6c 2e 0a 00 00 00  |hing kernel.....|
...snip...

Am I missing a couple of essental tools or something?