Hi Protaganist,
piCore works on the same way as the x86 version regarding persistence, so articles must be valid.
mydata.gz is not created automatically, you must create it with the proper tool, depending on your are using command line or a GUI.
In GUI, either use Backup in the
ControlPanel or you can choose backup mode shutting down the system with
Exit. In a terminal just execute
backup to create mydata.tcz
What goes to the backup is defined by /opt/.filetool.lst By default /home is already included, so your new user's home will be saved. You must add few other files to save password, SSH keys, etc. My /opt/.filetool.lst file:
opt
home
etc/sudoers
etc/passwd
etc/group
usr/local/etc/dropbear/dropbear_dss_host_key
usr/local/etc/dropbear/dropbear_rsa_host_key
I added new user to sudoers for easiar operation, but it is not a must.
To start dropbear server at boot, addded this line to /opt/bootlocal.sh:
/usr/local/etc/init.d/dropbear start