in recovery mode as root I executed:
mount -o remount,rw /
mount --all
then cd'ed to /media/home, ls'ed and got no results.
I also don't know if changes to make the system writable are made on the go or if I have to reboot. I rebooted and the system is still in read only mode.
ETA: another command that might be relevant:
dpkg --configure -a
returns
error processing package install-info (--configure), installed install-info package post installation script subprocess returned error exit status 127
no
Im reading about nmtui
feel free to suggest other approaches