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Compiling Jolla kernel
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==install boot.img on jolla phone== | ==install boot.img on jolla phone== | ||
* install [http://wiki.cyanogenmod.org/w/Doc:_fastboot_intro fastboot] on pc | * install [http://wiki.cyanogenmod.org/w/Doc:_fastboot_intro fastboot] on pc | ||
| + | * unlock bootloader from [https://jolla.zendesk.com/hc/en-us/articles/204709607-Jolla-Phone-How-do-I-use-the-Recovery-Mode- recovery mode] | ||
* Fastboot mode (volume down + put USB in) | * Fastboot mode (volume down + put USB in) | ||
| − | |||
fastboot flash boot boot.img | fastboot flash boot boot.img | ||
| + | |||
| + | * factory reset will save you from a bricked device from a bad kernel flash | ||
Latest revision as of 18:27, 11 November 2015
work in progress...
Contents |
[edit] environment setup
- Setup Mer Platform SDK
[edit] 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
[edit] build kernel modules
[edit] install boot.img on jolla phone
- install fastboot on pc
- unlock bootloader from recovery mode
- Fastboot mode (volume down + put USB in)
fastboot flash boot boot.img
- factory reset will save you from a bricked device from a bad kernel flash
