Guest piernov Posted June 15, 2014 Report Share Posted June 15, 2014 Hi there, hacking around acer liquid e these days. Trying to get newer kernel to boot. 184.108.40.206 : Kernel itself boots, but when the /system partition gets mounted, all of its content is erased Start backport of 3.0's kgsl driver (in order to compile correctly KitKat) Boot logo isn't shown so there might be a problem with the display. Would be easier to debug if android booted. Log : http://pastebin.com/LYyRtYKY Using msm-2.6.38 branch from caf, ported some commits of android-msm-2.6.35-acer_a1 from errmsg 3.0.21 : Kernel starts but crash early because of GPIO initialization failure : gpio_request fails with error -22 (Invalid argument) Log : http://pastebin.com/6HLfVyxY Using msm-3.0 branch from caf, ported some commits of android-msm-2.6.35-acer_a1 from errmsg It would be wonderful if someone is able to help me with these issues, or even work together to get a newer working kernel. If someone is interested and wants the source code, it's not yet on github because it's really dirty and WIP, but I can zip it and upload it. For now we are far from getting KitKat on this device, but at least having a clean and up-to-date kernel would help a lot I think : the goal is to get 3.4 if it's possible, because KK is based on it. (another problem is that the size of /system is now 336Mo, 64Mo left for /data, xdata would be mandatory) PS: The logs are from UART debugging : opened up my acer liquid, opened the miniUSB to see the other face, soldered the 2nd pin from the left to TX, the 3rd to RX. http://servers.piernov.org/~piernov/IMG_20140609_221433.jpg http://servers.piernov.org/~piernov/IMG_20140609_221446.jpg Another thanks to errmsg for the UART tip : http://rtg.in.ua/blog/serial-debug-on-acer-a1/ Link to comment Share on other sites More sharing options...
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