change_password service is hardcoded to use the pi user

[Thynix]

Is it not supported to change the username when writing the image? I used Raspberry Pi Imager's support to do that, and when I tried to change the user password with the /boot/octopi-password.txt the service logged

Oct 19 17:32:41 octopi1 systemd[1]: Starting change_password.service - LSB: Change pi's password via /boot/octopi-password.txt...
Oct 19 17:32:43 octopi1 chpasswd[468]: pam_unix(chpasswd:chauthtok): user "pi" does not exist in /etc/passwd
Oct 19 17:32:43 octopi1 change_password[468]: chpasswd: (user pi) pam_chauthtok() failed, error:
Oct 19 17:32:43 octopi1 change_password[468]: Authentication token manipulation error
Oct 19 17:32:43 octopi1 change_password[468]: chpasswd: (line 1, user pi) password not changed
Oct 19 17:32:43 octopi1 systemd[1]: Started change_password.service - LSB: Change pi's password via /boot/octopi-password.txt.
Oct 19 17:32:43 octopi1 change_password[378]: Could not change password ... failed!

[guysoft]

I think most do it using Rpi-imager.

Needs to be fixed here:

OctoPi/src/modules/octopi/filesystem/root/etc/init.d/change_password

Line 34 in 0d4cd57

(echo "pi:$new_password" | chpasswd && rm "$text_file" && log_success_msg "Password for user pi changed and change file deleted") || log_failure_msg "Could not change password"