Group: Hardware/Computers/e-readers/Kobo/Aura H2O Edition 2/boot log Bienvenue sur Kobo !

Here's a boot log I got by:

• Connecting an usb-serial adapter to the serial port (requires some good soldering practice and some basic electronics skills)
• Having the device off and power it on

The screen then displays the welcome screen, on mine it's in french and says "Bienvenue sur Kobo !"(or "Welcome to Kobo!" in English) and asks me to configure the WiFi:

U-Boot 2016.03-00031-gcd5f70c (Aug 31 2017 - 13:17:25 +0800)

CPU:   Freescale i.MX6SLL rev1.1 996 MHz (running at 792 MHz)
CPU:   Commercial temperature grade (0C to 95C) at 35C
Reset cause: POR
Board: MX6SLL LPDDR2 NTX
I2C:   ready
DRAM:  512 MiB
__get_sd_number(),cfg23=0,cfg24=0 
force_idle_bus: sda=0 scl=0 sda.gp=0x4d scl.gp=0x4c
force_idle_bus: sda=0 scl=1 sda.gp=0x4f scl.gp=0x4e
force_idle_bus: sda=1 scl=0 sda.gp=0x56 scl.gp=0x55
MMC:   board_mmc_init() : isd=0 
board_mmc_init() : wifi=2 
FSL_SDHC: 0, FSL_SDHC: 1
In:    serial
Out:   serial
Err:   serial
ntx_hw_early_init() 0
ram p=80000000,size=536870912
switch to partitions #0, OK
mmc0(part 0) is current device
mmc read 0x9ffffe00 0x3ff 0x1

MMC read: dev # 0, block # 1023, count 1 ... 1 blocks read: OK
mmc read 0x9ffffe00 0x400 0x1

MMC read: dev # 0, block # 1024, count 1 ... 1 blocks read: OK
ntx_hw_late_init()
mmc read 0x9ffffc00 0x1 0x1

MMC read: dev # 0, block # 1, count 1 ... 1 blocks read: OK
NTXSN not avalible !
ntx_gpio_get_value(402) : error parameter ! null ptr !
ntx_config_fastboot_layout():10 binaries partition added
ntx_config_fastboot_layout():3 mbr partition added
check_and_clean: reg 0, flag_set 0
Fastboot: Normal
Net:   CPU Net Initialization Failed
No ethernet found.
Hit any key to stop autoboot:  0 
switch to partitions #0, OK
mmc0(part 0) is current device
mmc read 0x80800000 0x7ff 0x1

MMC read: dev # 0, block # 2047, count 1 ... 1 blocks read: OK
kernel size = 4488608@80800000
mmc read 0x80800000 0x800 0x2245

MMC read: dev # 0, block # 2048, count 8773 ... 8773 blocks read: OK
Booting from mmc ...
mmc read 0x83000000 0x505 0x1

MMC read: dev # 0, block # 1285, count 1 ... 1 blocks read: OK
dtb size = 34777@83000000
mmc read 0x83000000 0x506 0x49

MMC read: dev # 0, block # 1286, count 73 ... 73 blocks read: OK

 hwcfgp=9ffffe00,pcb=60,customer=9

ntx_gpio_get_value(402) : error parameter ! null ptr !
ESDin=0,UPGKey=-1,PWRKey=0,USBin=0x0,BootESD=0,MenuKey=0
mmc read 0x9ffffc00 0x37ff 0x1

MMC read: dev # 0, block # 14335, count 1 ... 1 blocks read: OK
mmc read 0x9fdc8a00 0x3800 0x11ba

MMC read: dev # 0, block # 14336, count 4538 ... 4538 blocks read: OK
mmc read 0x9fdc8800 0x405 0x1

MMC read: dev # 0, block # 1029, count 1 ... 1 blocks read: OK
[WARNING] Binaries load sequence should Lo->Hi !
mmc read 0x9fdc6400 0x406 0x13

MMC read: dev # 0, block # 1030, count 19 ... 19 blocks read: OK
Kernel RAM visiable size=509M->509M
hwcfg rootfstype : 2
hwcfg partition type : 2
Kernel image @ 0x80800000 [ 0x000000 - 0x447da0 ]
## Flattened Device Tree blob at 83000000
   Booting using the fdt blob at 0x83000000
   Using Device Tree in place at 83000000, end 8300b7c8

Starting kernel ...

tps6518x-pmic tps6518x-pmic: request vcom gpio failed (-16)!
tps6518x-pmic tps6518x-pmic: request powerup gpio failed (-16)!
syscon-poweroff 20cc000.snvs:snvs-poweroff: pm_power_off already claimed 80021518 ntx_machine_poweroff
PMU: ricoh61x_battery_probe : version is RICOH61x_BATTERY_VERSION: 2014.02.21 V3.1.0.0-Solution1 2015/02/09
cpu cpu0: dev_pm_opp_get_opp_count: device OPP not found (-19)
_get_fp9928():"/soc/aips-bus@02100000/i2c@021a4000/fp9928@48" device node not found !!
imx_epdc_v2_fb 20f4000.epdc: Unable to get an accurate EPDC pix clkdesired = 96000000, actual = 80000000
1+0 records in
1+0 records out
512 bytes (512B) copied, 0.007208 seconds, 69.4KB/s
cannot open /dev/null
dosfsck 3.0.6, 04 Oct 2009, FAT32, LFN
There are differences between boot sector and its backup.
Differences: (offset:original/backup)
  65:01/00
  Not automatically fixing this.
/dev/mmcblk0p3: 393 files, 11272/1763977 clusters
insmod: can't read '/drivers/mx6sll-ntx/misc/lowmem.ko': No such file or directory

(none) login: /usr/local/Kobo/nickel: /usr/lib/libxml2.so.2: no version information available (required by /usr/local/Kobo/libnickel.so.1)
/usr/local/Kobo/nickel: /usr/lib/libxml2.so.2: no version information available (required by /usr/local/Kobo/libnickel.so.1)
/usr/local/Kobo/nickel: /usr/lib/libxml2.so.2: no version information available (required by /usr/local/Kobo/libnickel.so.1)
/usr/local/Kobo/nickel: /usr/lib/libxml2.so.2: no version information available (required by /usr/local/Kobo/libnickel.so.1)
sh: you need to specify whom to kill
cyttsp5_i2c_adapter 1-0024: cyttsp5_core_rt_resume: Error on wake
killall: pickel: no process killed

I then pressed enter and It asked for a login/password:

(none) login: 

Using 'root' as login is sufficent to get a shell

(none) login: root
[root@(none) ~]# 

However beware: The device has aggressive power management which makes the serial port unresponsive. To make the serial port responsive again, just touch the screen clicking some button.