@idonthatevests i already to unlock bootloader , i tryed change CONFIG_LOCALVERSION to "UBports-tab7lite" but shell still get result ís 4.19.191-25600224-abT220XXU1CVL7

@idonthatevests i tested with that , configs still = n

Hello , im porting ubuntu touch but it not booting

i seen some message like :
pid.codes Test PID has been connected.
wired connection has been connected.
and 0afe has been connected.

then , i ask ChatGpt for ask my bugs and it says :
" Native Ubuntu Touch / Sailfish / Mer NOT POSSIBLE on this device because:
Samsung locks the kernel boot
Android Kernel:
No SYSVIPC
No devtmpfs
Not systemd-ready
No vendor_boot
Cannot boot Halium initramfs
️ Modifying the kernel config has no practical effect"

also i cant enable CONFIG_DEVTMPFS to y

$ grep -n "CONFIG_DEVTMPFS" workdir/downloads/android_kernel_samsung_mt6765/arch/ar
m64/configs/gta7litewifi_defconfig (EDITED DEFCONFIG TO Y)
1355:CONFIG_DEVTMPFS=y
1357:CONFIG_DEVTMPFS_MOUNT=y

$ adb shell "zcat /proc/config.gz | grep DEVTMPFS"(BUT AFTER FLASH , still not set)
CONFIG_DEVTMPFS is not set

check kernel but kernel still kernel stock rom)
$ adb shell uname -r
4.19.191-25600224-abT220XXU1CVL7

is impossible to porting??

Trả lời: Build Ubuntu Touch error : Halium initrd Failed to boot
I fixed this problem . sorrry, is my mistake comand
method :
./prepare-fake-ota.sh out/device_gta7litewifi_usrmerge.tar.xz ota
./system-image-from-ota.sh ota/ubuntu_command images
adb push images/rootfs /data/ubuntu.img
and next its success to run kernel but cant mount my rootfs (i see it at dmesg log)
i think i need more time to make this tablet work correct with ubuntu touch
here ís log in dmesg :
[ 12.541550] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 12.649706] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 12.649734] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 12.757704] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 12.757732] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 12.865462] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 12.865490] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 12.973712] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 12.973739] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.081820] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.081848] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.189704] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.189732] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.280059] -(4)[0:swapper/4]mtk_charger_alarm_timer_func: not suspend, wake up charger
[ 13.280594] -(4)[321:charger_thread]mt635x_auxadc_read_raw: 10 callbacks suppressed
[ 13.376047] (4)[321:charger_thread]mt6370_pmu_chg_get_property:chg_stat = 2
[ 13.405702] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.405730] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.513578] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.513606] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.595980] (4)[321:charger_thread]mt6370_pmu_charger mt6370_pmu_charger: mt6370_dump_register: ICHG = 500mA, AICR = 500mA, MIVR = 4600mV, IEOC = 150mA, CV = 4400mV
[ 13.596001] (4)[321:charger_thread]mt6370_pmu_charger mt6370_pmu_charger: mt6370_dump_register: VSYS = 4355mV, VBAT = 4330mV, IBAT = 0mA, IBUS = 300mA, VBUS = 4900mV
[ 13.596011] (4)[321:charger_thread]mt6370_pmu_charger mt6370_pmu_charger: mt6370_dump_register: CHG_EN = 1, CHG_STATUS = done, CHG_STAT = 0x80
[ 13.596021] (4)[321:charger_thread]mt6370_pmu_charger mt6370_pmu_charger: mt6370_dump_register: CHG_CTRL1 = 0x10, CHG_CTRL2 = 0x1B
[ 13.596084] (4)[321:charger_thread]charger_routine_thread zhi end , 0
[ 13.621702] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.621730] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.729417] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.729443] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.837613] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.837640] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 13.945537] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 13.945564] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 14.053710] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 14.053738] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 14.161509] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 14.161536] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 14.269740] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 14.269771] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 14.377799] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 14.377827] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 14.485704] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 14.485731] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 14.557524] (2)[133:kworker/2:1][sensorHub] sensorType = 0, action = 8
[ 14.557681] (6)[7:kworker/u16:0][SCP] scp_ipi_send: SCP A not ready
[ 14.557700] (6)[7:kworker/u16:0][sensorHub] scp_ipi_send fail
[ 14.557911] (2)[133:kworker/2:1][sensorHub] scp_sensorHub_req_send fail!
[ 14.593509] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 14.593536] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 14.701610] (6)[279:teegris rpmb]TZDEV ERR tzdev_teec_connect(60): Failed to connect to root_task socket after 20 retries
[ 14.701633] (6)[279:teegris rpmb]TZDEV ERR TEEC_InitializeContext(208): Failed to connect to root task, context = 0000000000000000 ret = -111
[ 15.229710] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.229738] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 15.325696] (4)[14:tz_kthread_hear]TZDEV: heartbeat smc for reschedule
[ 15.337692] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.337720] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 15.445555] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.445583] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 15.553729] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.553756] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 15.661419] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.661445] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 15.769705] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.769733] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 15.877735] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.877763] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 15.985392] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 15.985426] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111
[ 16.097383] (6)[279:teegris rpmb]TZDEV ERR tz_iwio_alloc_iw_channel(175): IW buffer registration failed, error=-111
[ 16.097410] (6)[279:teegris rpmb]TZDEV ERR tz_iwsock_connect(619): Failed to connect socket root_task, error=-111

and i found some folder create in /data :
$ adb shell
gta7litewifi:/data # ls
android-data cache lost+found media system-data ubuntu.img user-data
gta7litewifi:/data # ls system-data
etc nix opt root var
gta7litewifi:/data # ls user-data/phablet
Documents Downloads Music Pictures Videos
gta7litewifi:/data #

are you have any idea?

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

@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 i already do that

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)

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

@MrT10001 original is android 11 and now i use android 14