@Keneda Thanks for the response！At present, the device support is good, and I have disabled system updates. I will not update the system temporarily. I may update the system in a long time, but I will back up the data.

@MrT10001 Thanks for the response! Is this error normal? After flashing the system, it appeared several times after entering the system normally. I thought I didn't brush the Ubuntu system properly.

@Keneda Thanks for the response! I have used the UT Tweak tool and mounted the system for read-write. Then I used APT to install the required software. thank you very much.

@Keneda Thanks for the response! you can tell me how to make it R/W,I want to use apt to install software.
Additionally, the system is randomly stuck, how can we solve it? Display "qualcomm crashdump mode
PANIC
Unable to handle kernel paging request at
virtual address ffffffbf9f800688"

I used the ubports tool to fully refresh the Ubuntu touch system. The Oneplus Nord N10 phone has entered the system, but cannot be updated with "sudo apt update" and is displayed as "read-only file system". And the system randomly freezes.Display as "
qualcomm crashdump mode
PANIC
Unable to handle kernel paging request at
virtual address ffffffbf9f800688
Oops