Steve McIntyre wrote:
if we're happy that they're stable and supportable.
Having had a 2GB nitrogen6x running as a raspbian buildd for a while I
would consider it "stable and supportable". We did have some crashes on
both the nitrogen6x and the wandboard quad caused by the eglibc
testsuite in the past but since upgrading to 3.11.0-armv7-x13 that
seems to have stopped happening.
Adding a heatsink is reccomended, the IMX6 gets bloody hot without one.
http://uk.farnell.com/jsp/search/productdetail.jsp?SKU=2084441
Kernel wise I currently run one of robert nelsons "mainstream based"
kernels (partly so I can run the same kernel on my nitrogen6x and my
wandboard quads). I'd be happy to test a debian kernel though if people
want (now I have the four wanboards at bytemark I can more easilly
afford to pull the "test" autobuilders out of the pool for testing stuff).
Bootloader wise I patched up uboot to combine the support for booting
plain zimages/initrds (I HATE uImages) with support for the 2GB
nitrogen6x. I posted details of this to debian-arm some time back.
The board boots up immediately on power on so remote power control would
be easy enough to accomplish either by giving each board a seperate PSU
and plugging them into a switchable PDU or by using a networkable relay
board. Serial is RS232 levels and the board comes with a cable that
brings the serial ports out to 9 way D connectors (specifically female
ones with DCE wiring) so serial console should be easy enough.
The board is similar enough to a sabre lite that it will boot and key
hardware (serial console, sata, network) will work with the sabre lite
device tree file. Indeed that is how i'm running mine at the moment.
Overall i'd say the board ticks all the important boxes for an
autobuilder. The reasons I picked the wandboard quad instead of the
nitrogen6x for raspbian were price (which is not an issue if the boards
are donated) and physical size (which AIUI is not a massive deal for the
hosting arrangements debian has).
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