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This page is dedicated to the installation of Android on the Neo 1973 and Neo FreeRunner handsets.
You can find general informations (porting/development and day to day usage) about Android and Neo phones here : Android
The Android kernel image can be more than 2MB in size. The UBoot environment that comes with your FreeRunner is only able to boot a kernel less than 2MB in size. To use a kernel larger than 2MB you need to:
The SD Card in your FreeRunner needs to be configured with two 2 primary partitions before Android will boot. First a VFAT/MSDOS (16 or 32) which acts as the '/sdcard' storage area (for pictures, movies, music, etc). Second an ext3 primary partition which Android uses as '/data' with in which it stores settings, caches, etc.
Insert the Mico SD Card from your FreeRunner into your Linux desktop then bring up a Terminal and type
$ dmesg | grep sd
You will get an output like this, in this instance we can see that the SD Card has been assigned the device name 'sde'
... sd 9:0:0:0: [sde] Attached SCSI removable disk ...
Now, as root, use 'fdisk' to partition the device.
# fdisk /dev/sde
Pressing 'p' will show you the current partitions on the SD Card 'd' will delete them and 'n' will create a new one. Create a primary partition for your media. Then another primary partition for Android to store it's data on.
On a 1Gig card I used 768MB for the first partition ('+768MB' in fdisk) and the remainder for Android data. Here is fdisk's partition output:
Device Boot Start End Blocks Id System /dev/sde1 1 769 750513+ 83 Linux /dev/sde2 770 1016 241072 83 Linux
Now all that's left to do is format the partitions with the appropriate filsystem But first hit 'w' in fdisk to write the changes to the SD Card.
Format like this:
# mkfs.vfat /dev/sde1 # mkfs.ext3 /dev/sde2
There is no need to populate the ext3 partition at all. The VFAT partition can be populated with media content (ring tones etc.) if you so desire.
There are currently a few prebuild images:
Michael Trimarchi's images with latest fixes Sean McNeil images
I have placed an older 2.6.26 kernel with Android support at:
uImage-android
I have put up a jffs2 image that replaces rootfs on the Freerunner at:
androidfs.jffs2
As noted above, this installation requires you to wipe out the existing kernel and rootfs in NAND on your Freerunner.
With your SDCARD all set, you are ready to flash the kernel and rootfs:
sudo {path_to}/dfu-util -d 0x1d50:0x5119 -a kernel -D uImage-android
sudo {path_to}/dfu-util -d 0x1d50:0x5119 -a rootfs -D androidfs.jffs2
There are currently a few prebuild images: Radek Polak's SD card images (install on ext3, first partition on SD must be FAT16)
You can also boot from the SD Card using the pre built images like so :-
sudo ./Mntjffs.sh freerunner-v5.jffs2 image/
Some notes about booting android from sdcard :
--- filesystem/root/init.rc 2008-12-15 17:51:14.000000000 +0100 +++ phyce.init.rc 2008-12-19 15:56:25.000000000 +0100 @@ -24,7 +24,7 @@ mkdir /sqlite_stmt_journals 01777 root root mount tmpfs tmpfs /sqlite_stmt_journals size=4m - mount rootfs rootfs / ro remount + mount rootfs rootfs / rw remount write /proc/sys/kernel/panic_on_oops 1 write /proc/sys/kernel/hung_task_timeout_secs 0 @@ -38,14 +38,14 @@ # mount yaffs2 mtd@system /system ro remount # We chown/chmod /data again so because mount is run as root + defaults - mount ext3 /dev/block/mmcblk0p2 /data nosuid nodev - chown system system /data - chmod 0771 /data +# mount ext3 /dev/block/mmcblk0p2 /data nosuid nodev +# chown system system /data +# chmod 0771 /data # Same reason as /data above - mount yaffs2 mtd@cache /cache nosuid nodev - chown system cache /cache - chmod 0770 /cache +# mount yaffs2 mtd@cache /cache nosuid nodev +# chown system cache /cache +# chmod 0770 /cache
Most of the hardware on Freerunner seems to work on latest Android images, but not always perfectly.
If you want to see details of what is already usable, please have a look at: Android_usage
To assist in debugging and to gain shell access to the phone with Android, you can use the instructions found here: Android debug bridge