[Q] [SOLVED] Compiling and packing custom kernel for Galaxy Note 3
I'm trying adding several drivers into my SM-N9005 firmware. My phone runs Omega ROM v21, whose kernel doesn't support kernel module drivers, so I decided to recompile Omega's kernel from sources with needed options. The sources were taken from here:
The compilation was easy, the drivers were compiled too, I have my zImage now.
I downloaded Omega's flashable kernel-only zip N9005_Omega_Kernel_KK_v1.1_XXUFNF4_ramdisk.zip
from Omega's repo, unpacked boot.img
from the zip and tried disassembling it with split_boot
script from bootimg_tools
I got the following output:
Page size: 2048 (0x00000800)
Kernel size: 8259720 (0x007e0888)
Ramdisk size: 1581598 (0x0018221e)
Second size: 0 (0x00000000)
Command line: 'console=null androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x37 ehci-hcd.park=3'
Base address: (0x01dfff00)
Writing boot/boot.img-kernel ... complete.
Writing boot/boot.img-ramdisk.cpio.gz ... complete.
Unpacking ramdisk... complete.
So I got original Omega's kernel boot.img-kernel
and ramdisk boot.img-ramdisk.cpio.gz
. Next I decided to reassemble it and flush back, coz' if it works - my kernel might work too.
I took mkbootimg
tool from the same package and created new boot.img
with it, using parameters I got previously from split_boot
./mkbootimg --kernel boot/boot.img-kernel --ramdisk boot/boot.img-ramdisk.cpio.gz --cmdline 'console=null androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x37 ehci-hcd.park=3' --base 0x01dfff00 --pagesize 2048 -o boot.img
So I got new boot.img
with size 9846784 bytes
, whereas original Omega's boot is 11149312 bytes
I packed my boot.img into original Omega's kernel zip N9005_Omega_Kernel_KK_v1.1_XXUFNF4_ramdisk.zip
, replacing existing original boot.img inside, renamed the zip and flushed with recovery.
Now my phone falls into download mode, saying 'Could not do normal boot'. Flashing back original Omega's kernel restores the phone to normal state, so the problem is with reassembling boot.img
What am I missing? Please, help.