This scripts helps to install Debian 8 services on MIPS routers with Padavan firmware.
Prepare Ext2/Ext3/Ext4 partition on USB drive by following this manual. Clean Debian environment takes ~300MB. SWAP usage is also recommended (especially on 64MB RAM devices).
It takes few minutes to download and unpack ~50MB archive. Log into router's SSH/telnet/serial console and type:
wget --no-check-certificate https://raw.githubusercontent.com/DontBeAPadavan/chroot-debian/master/install.sh
sh install.sh
If all goes as expected, you'll get:
Downloading /opt/etc/init.d/rc.func... success!
Downloading /opt/etc/init.d/rc.unslung... success!
Downloading /opt/etc/init.d/S99debian... success!
Downloading /opt/debian_clean.tgz... success!
Unpacking Debian environment... success!
The Debian services from /opt/debian/chroot-services.list will be started automatically at boot time. You may log into Debian environment via SSH root:debian@192.168.0.1:65022. Do you wish to start it now? [y/n]: y
Starting Debian services...
[ ok ] Starting OpenBSD Secure Shell server: sshd.
Done.
Log into chroot'ed Debian environment by root:debian@192.168.0.1:65022 where 192.168.0.1 is the IP address of router. You've got full blown Debian on board with all it's 40+ thousands packages! Let's install transmission as an example:
apt-get update
apt-get install transmission-daemon
echo 'transmission-daemon' >> /chroot-services.list
The last command adds transmssion to the list of Debian services, which is started at boot time. transmission-daemon is the script name from /etc/init.d/<name>.
This is just a sandbox, which is isolated from host system. If you'll break it, you can always start from scratch. Log into router console and run:
cd /opt
/opt/etc/init.d/S99debian stop
rm -fr debian
rm /opt/etc/init.d/S99debian
sh install.sh
Voilà! You've got fresh Debian installation again.
The installation script unpacks prepared Debian environment. You can prepare it manually, see how.
Also, take a look at /opt/etc/init.d/S99debian. You can mount any host folder as /media in Debian env. by setting $EXT_DIR varialble. It's a "bridge" between host and chroot'ed systems.
Good luck!