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Compiling Jolla kernel

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Revision as of 18:27, 11 November 2015 by R0kk3rz (Talk | contribs)

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work in progress...

Contents

environment setup

build kernel

  • download source from releases.sailfishos.org
  • extract tarball
  • cd into extracted dir
  • sb2 make sbj_defconfig
  • sb2 make kernel-adaptation-sbj


  • Script to build flashable boot.img
#!/bin/sh
set -e
BOOTIMG=boot.img
RAMDISKFILE=ramdisk-sailfish.img
# Create ramdisk
echo "Creating dummy ramdisk.."
touch $RAMDISKFILE
gzip -f $RAMDISKFILE
echo "Creating $BOOTIMG.."
KERNEL=arch/arm/boot/zImage 
mkbootimg --kernel $KERNEL --ramdisk ${RAMDISKFILE}.gz --cmdline "init=/sbin/preinit root=/dev/mmcblk0p28 rootfstype=btrfs noinitrd androidboot.hardware=qcom user_debug=31 ehci-hcd.park=3 maxcpus=2   ip=192.168.2.15::192.168.2.14:255.255.255.0::rndis0:off zcache" --base 0x80200000 --offset 0x02000000 --pagesize 2048 -o $BOOTIMG
echo "Cleaning up.."
rm $RAMDISKFILE*
exit 0

build kernel modules

install boot.img on jolla phone

fastboot flash boot boot.img
  • factory reset will save you from a bricked device from a bad kernel flash
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