Build Ubuntu Touch error : Halium initrd Failed to boot

[MrT10001]

@linhmieu2 Could that be the issue, you have built of LineageOS21 (Android 14) and used Halium 14, however as far as I know (which is not a lot with porting) UT generally likes a stock Android ROM.

[k.nacke]

@linhmieu2 Did you run prepare-fake-ota.sh and system-image-from-ota.sh (see install kernel)?

You would the flash system.img to the system partition. Also, your deviceinfo_kernel_cmdline seems to miss systempart=/dev/disk/by-partlabel/system.

[linhmieu2]

@k.nacke sorry i forgot that, i will try build agian

[linhmieu2]

hello again
i rebuild my project with kernel android 12 base , also i add this to cmdline : systempart=/dev/disk/by-partlabel/system

Preparation: I created a tarball containing the system and rootfs partitions. 
structure of my tarball like this : 
    tarball/
           ├── boot─ dtb  Image.gz  ramdisk.img.lz4
             (and zipped this with gz)
and I renamed rootfs.img to ubuntu.img because  i follow this guide https://docs.ubports.com/en/latest/porting/build_and_boot/standalone_kernel_install.html .
                  (mv rootfs.img ubuntu.img)
after do that , i run prepare fake ota.sh and system images from ota.sh with this tarball
    and i have this :
[user@cachyos-x8664 images]$ ls
system.img  ubuntu.img
       and i flash system + rootfs + boot new : 
    [user@cachyos-x8664 utbuild]$ fastboot flash boot boot.img
  < waiting for any device >
    Sending 'boot' (12216 KB)                          OKAY [  0.561s]
    Writing 'boot'                                     OKAY [  0.152s]
    [user@cachyos-x8664 utbuild]$ fastboot flash system images/system.img
    Resizing 'system'                                  OKAY [  0.004s]
    Sending sparse 'system' 1/11 (262140 KB)           OKAY [ 10.996s]
    Writing 'system'                                   OKAY [  3.662s]
    ....
    Finished. Total time: 168.645s

    Flashing the userdata partition:
    [user@cachyos-x8664 utbuild]$ fastboot flash userdata images/ubuntu.img
    Sending sparse 'userdata' 1/11 (262140 KB)         OKAY [ 15.605s]
    Writing 'userdata'                                 OKAY [  3.586s]
    ...
    Finished. Total time: 187.735s
    [user@cachyos-x8664 utbuild]$ fastboot reboot
    Rebooting                                          OKAY [  0.001s]
    Finished. Total time: 0.051s

and my device get bootloops , why this happens?
(sorry for bad english)

[faveoled]

@linhmieu2 are you sure you need lz4 for ramdisk compression and not gz?

[MrT10001]

@linhmieu2 Have you flashed vbmeta.img?

[linhmieu2]

@MrT10001 i already do that

[linhmieu2]

@faveoled im sure im not use .gz in ramdisk
$ file halium-boot-ramdisk.img.lz4
halium-boot-ramdisk.img.lz4: LZ4 compressed data (v0.1-v0.9)

[MrT10001]

@linhmieu2 Before ubuntu.img is sent to userdata have you formatted it (to EXT4, being Samsung it should be EXT4)?

[linhmieu2]

@MrT10001 okay , i formated userdata partion to ext4 and flash again but this problem continues...