OnePlus 6T commands

oneplus6t

All commands tested with termux.  With slight modifications they will also work from adb shell. 

remount root
------------
su # tsu won't work with this
mount -o rw,remount /system_root
mount -o ro,remount /system_root


change hostname
---------------
su
hostname phone # works until reboot

su
mount -o rw,remount /system_root
# normal sed -i gives the error "sed: no temp file"
cp /system_root/init.rc /data/data/com.termux/files/home
sed -i "s/hostname localhost/hostname phone/" /data/data/com.termux/files/home/init.rc > /system_root/init.rc
mount -o ro,remount /system_root
reboot

change hosts
------------
su 
mount -o rw,remount /system_root
echo 192.168.43.254 laptop >> /system_root/system/etc/hosts
mount -o ro,remount /system_root