s6 root with ssh in recovery

s6 root with ssh recovery.txt

# mash the ssssssssssssssssssssssssss on boot to interrupt over uart

# get into single user mode
setenv boot_fs a
setenv setargs_mmc ${setargs_mmc} init=/bin/sh
boot

# As soon as the system boots (you have 5 seconds):
echo 'V' > /dev/watchdog

# take ownership of the /root directory and set the permissions correctly
chown root:root /root; chmod 700 /root; mkdir /root/.ssh; chmod 700 /root/.ssh

# use vi to add ssh pub key to /root/.ssh/authorized_keys
# set the permissions of authorized_keys correctly
chmod 600 /root/.ssh/authorized_keys

In Linux
--------

iptables -F
(you can run the next commands over SSH)
sed -i -e '/    iptables -I INPUT -j DROP -p tcp --dport 22/s/^/#/g' /opt/rockrobo/watchdog/rrwatchdoge.conf
sed -i -E 's/dport 22/dport 29/g' /opt/rockrobo/watchdog/WatchDoge
sed -i -E 's/dport 22/dport 29/g' /opt/rockrobo/rrlog/rrlogd

mkdir /mnt/recovery
mount /dev/mmcblk0p7 /mnt/recovery
sed -i -e '/    iptables -I INPUT -j DROP -p tcp --dport 22/s/^/#/g' /mnt/recovery/opt/rockrobo/watchdog/rrwatchdoge.conf
sed -i -E 's/dport 22/dport 29/g' /mnt/recovery/opt/rockrobo/watchdog/WatchDoge
sed -i -E 's/dport 22/dport 29/g' /mnt/recovery/opt/rockrobo/rrlog/rrlogd
# copy the .ssh folder and authorized_keys to the recovery partition and set all the permissions correctly for after reset
cp -R /root/.ssh /mnt/recovery/root/
chown -R root:root /mnt/recovery/root; chmod 700 /mnt/recovery/root; chmod 600 /mnt/recovery/root/.ssh/authorized_keys
umount /mnt/recovery