Hello, it is very helpful for me, thank you!

Hello all dear,
I am now porting the ubuntu-touch with my own device(qualcomm msm8937).
build halium-boot, systemimg, Install system.img and rootfs.
After these steps, boot the phone, it seems boot OK, log shows:
[27045.144610] usb 1-11: new high-speed USB device number 11 using xhci_hcd
[27045.279126] usb 1-11: New USB device found, idVendor=0fce, idProduct=7169
[27045.279134] usb 1-11: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[27045.279138] usb 1-11: Product: Unknown
[27045.279142] usb 1-11: Manufacturer: GNU/Linux Device
[27045.279146] usb 1-11: SerialNumber: GNU/Linux Device on rndis0 10.15.19.82
[27045.308432] rndis_host 1-11:1.0 usb0: register 'rndis_host' at usb-0000:00:14.0-11, RNDIS device, 22:10:49:e2:99:a8

Then I try to get ssh access:
ssh -vvvv phablet@10.15.19.82
...
phablet@10.15.19.82's password:
debug3: packet_send2: adding 64 (len 52 padlen 12 extra_pad 64)
debug2: we sent a password packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey,password).
When I type the pwd, it always show Permission denied, now I have no idea to do next porting step.

Here is the full kmsg:
https://paste.ubuntu.com/p/vvdfwjsHkS/

thank you everyone.