Well, after having ran Cyanogenmod 7.1RC for a few weeks, I though it was fit to see about getting some unix tools since I can ssh into my phone.
While this isn’t too impressive or useful half the time, with just messing around it’s pretty fun, so I found a bunch of unix tools such as f/e/grep and wget and vim that people had compiled for android. All fine and dandy, but what about a chrooted unix environment? I had seen several things on hack a day and what not about running debian inside of a chroot on android, and thought “what about Arch linux?” I use Arch on my netbook, and while yes, the VPS hosting this website is running Debian, theres nothing quite like running a pacman command on a phone, so I set out in search to see if someone had done this before.
A single forum post which had instructions that didn’t work for me on CM7. So I set to work modifying them. Not much was needed but heres the procedure for installing and running Arch in a chrooted environment on android:
Heres my hardware so you know:
Droid Incredible by HTC, 4GB sdcard with 2.5GB open. Cyanogenmod 7 RC1.
I used Irssi-Connectbot to get a terminal on my phone then started dropbear and did all of these commands through ssh (sometimes a full keyboard is just better than a small virtual on screen one).
su bash #gives us auto complete and possibly nice colors depending on your .bashrc and what not cd /sdcard mkdir arch dd if=/dev/zero of=archarm.img seek=749999999 bs=1 count=1 #you can change the size if you want, I just wouldn't go any smaller than 750mb. I did a 2gb file since I had the space. mke2fs -F archarm.img mknod /dev/block/loop256 b 7 256 losetup /dev/block/loop256 archarm.img mount -t ext2 /dev/block/loop256 arch/ cd arch wget http://archlinuxarm.org/os/ArchLinuxARM-omap-smp-latest.tar.gz tar xzf ArchLinuxARM*.tar.gz rm ArchLinuxARM*.tar.gz mount -o bind /dev/ /sdcard/arch/dev #mkdir media/sdcard #held off on this but you can do it #mkdir media/emmc #place to mount the incredibles internal memory #mount -o /sdcard/ /sdcard/arch/media/sdcard #mount the sdcard #mount -o /emmc/ /sdcard/arch/media/emmc #mount the internal storage chroot . /bin/bash #enter the chroot, your now in the Arch install. #next we need to set some stuff up to make sure everything works well: echo "nameserver 188.8.131.52" > /etc/resolv.conf mount -t proc proc /proc mount -t sysfs sysfs /sys source /etc/profile export TERM=xterm export HOME=/root mount /dev/pts pacman -Syu #and update to make sure we're good to go...
Now you should have a working Arch linux install on your phone. Next we’ll do some bash hacking to make it nicer.
To exit the chroot:
exit #get back to android's bash and not the Arch bash (ie: exit the chroot)
I placed the following into /data/opt/arch and chmod 755 /data/opt/arch
This makes it easier to start the chroot
#quick hack to mount and start the chroot... if [ "mount | grep arch" ]; then cd /sdcard/arch/ chroot . /bin/bash else mknod /dev/block/loop256 b 7 256 losetup /dev/block/loop256 /sdcard/archarm.img mount -t ext2 /dev/block/loop256 /sdcard/arch/ cd /sdcard/arch/ mount -o bind /dev/ /sdcard/arch/dev chroot . /bin/bash fi
I also did:
echo "export TERM=xterm" >> /etc/profile echo "export HOME=/root" >> /etc/profile
To make sure this all happens properly
In the chroot I made this file and placed it in the root as file: start
Again, chmod 755 start
#quick hack to start up everything for the chrooted Arch if [ "mount | grep proc" ]; then echo "Proc already mounted, skipping..." else mount -t proc proc /proc fi if [ "mount | grep sysfs" ]; then echo "Sysfs already mounted, skipping..." else mount -t sysfs sysfs /sys fi if [ "mount | grep devpts" ]; then echo "Sysfs already mounted, skipping..." else mount /dev/pts fi
./start; source /etc/profile
Some people don’t like just having the cmd line, so you might want to do a X11 VNC thing like so:
pacman -S xvfb x11vnc icewm
Which will install the xvfb which is needed to make a virtual frame buffer, the x11vnc vnc server to serve the vnc connect and the desktop icewm.
Xvfb :1 -extension GLX -fp /usr/share/fonts/misc -screen 0 800x480x16& DISPLAY=:1 /usr/bin/icewm& #change this line to the wm of your choice x11vnc -display :1 -forever -noshm -bg -nopw -xkb
Goes into vnc in /root/ of the chroot for starting the VNC.
Simply use androidvnc to connect to localhost:5900 to get yto your new arch chroot.
Hope you all enjoy and get this working as well as I did!