_The following content is still under construction_

# DEV TOOLS#

Install Nvidia linux4tegra development tools [here](http://developer.nvidia.com/tegra/downloads) :

`cd ~` `mkdir ac100` `cd ac100` `wget http://developer.download.nvidia.com/tegra/files/linux_for_tegra_os_pack_rel_20101029_10.9.3.run.tar.gz` `tar -zxvf linux_for_tegra_os_pack_rel_20101029_10.9.3.run.tar.gz` `sh ./linux_for_tegra_os_pack_rel_10.9.3.run`

# BACKUP#

`cd ~/ac100` `cd linux4tegra/nvflash/`

Completely power off your AC100 : hold “Power switch” for 10s

Plug and USB to micro-USB cable, form your AC100 (micro-USB), and your computer (USB)

Press CTRL + ESC keys continuously and press “Power switch” for 3 sec. Release “Power switch”, withe led will turn on in 2-3 second, release CTRL + ESC keys

become root : `su` or `sudo su`

`LD_LIBRARY_PATH=. ./nvflash –bl ../prebuilt/fastboot.stock.bin –go` `LD_LIBRARY_PATH=. ./nvflash -r –getpartitiontable partitiontable.txt` `LD_LIBRARY_PATH=. ./nvflash -r –read 2 part-2.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 3 part-3.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 4 part-4.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 5 part-5.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 6 part-6.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 7 part-7.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 8 part-8.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 9 part-9.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 10 part-10.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 11 part-11.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 12 part-12.img` `LD_LIBRARY_PATH=. ./nvflash -r –read 13 part-13.img`

As part 14 is user data, if you have no data, you can jump this step. `LD_LIBRARY_PATH=. ./nvflash -r –read 14 part-14.img` (very,very,very long and end with an error : it's normal don't panic)

Completely power off your AC100 : hold “Power switch” for 10s (release when screen blink.)

# INSTALL phh UBUNTU #

GET FILES

`cd ~/ac100` `wget http://kotelett.no/ac100/phh/boot.img` `wget http://kotelett.no/ac100/phh/Ubuntu5.tar.lzma`

GET YOUR KERNEL PARAMETER

if not in : CommandLine

boot android and install : Term.apk from [here](http://code.google.com/p/androidterm/downloads/list)

Install : Term.apk

Open Terminal application previously installed

put an SDCARD or USB KEY

type : `mount` find line where your sdcard or key are : example : /storage/sdcard0-disk1

type : `dmesg > /storage/sdcard0-disk1/dmesg.log` `sync`

power off your AC100

Go to your Main computer, mount the sdcard :

type : `cat /pathto:yourmoutedsdcard/ dmesg.log | grep “command line”`

result something like this :

`<5>[ 0.000000] Kernel command line: mem=448M@0M nvmem=64M@448M vmalloc=320M video=tegrafb console=ttyS0,115200n8 usbcore.old_scheme_first=1 tegraboot=sdmmc tegrapart=recovery:300:a00:800,boot:d00:1000:800,mbr:1d00:200:800,system:1f00:25800:800,cache:27700:32000:800,misc:59700:400:800,userdata:59c00:9a600:800 `

now :

`cd ~/ac100` `wget http://ac100.gudinna.com/internal/bootimg.tar.gz` `tar -zxvf bootimg.tar.gz` `cd bootimg` `make` `cp ../boot.img ./` `./unpack_bootimg boot.img`

replace the value by your result above in order to have : `./make_bootimg boot.img zImage initrd.img -c 'mem=448M@0M nvmem=64M@448M vmalloc=320M video=tegrafb console=tty0 usbcore.old_scheme_first=1 quiet splash elevator=noop tegraboot=sdmmc tegrapart=recovery:300:a00:800,boot:d00:1000:800,mbr:1d00:200:800,system:1f00:25800:800,cache:27700:32000:800,misc:59700:400:800,userdata:59c00:9a600:800'`

`cp ./boot.img ../myboot.img`

or just update the boot comand line in downloaded boot.img via abootimg (confirmed to work on debian 6) https://gitorious.org/ac100/abootimg#more

syntax: $ abootimg -u boot.img -c “cmdline = mem=448M@0M nvmem=64M@448M vmalloc=320M video=tegrafb console=tty0 usbcore.old_scheme_first=1 quiet splash elevator=noop tegraboot=sdmmc tegrapart=recovery:700:a00:800,boot:1100:1000:800,mbr:2100:200:800,system:2300:25800:800,cache:27b00:32000:800,misc:59b00:400:800,userdata:5a000:9a600:800”

• *replace the value “cmdline…. ” by your result (cmdline) above. BOOTLOADER Completely power off your AC100 : hold “Power switch” for 10s Plug and USB to micro-USB cable, form your AC100 (micro-USB), and your computer (USB) Press CTRL + ESC keys continuously and press “Power switch” for 3 sec. Release “Power switch”, withe led will turn on in 2-3 second, release CTRL + ESC keys `cd ~/ac100` `cd linux4tegra/nvflash/` become root : `su` or `sudo su` `LD_LIBRARY_PATH=. ./nvflash –bl ../prebuilt/fastboot.stock.bin –download 5 ../../myboot.img` Completely power off your AC100 : hold “Power switch” for 10s (release when screen blink.) PRE-INSTALL UBUNTU insert a 4G USB key, or SD card on your computer `dmesg | tail -50 | grep “logical blocks”` example result : → sd 14:0:0:0: [sdc] 7821183 512-byte logical blocks: (4.00 GB/3.72 GiB) VERIFY sdc and size to avoid destroying your main system !! become root : `su` or `sudo su` `umount /dev/sdc1` `umount /dev/sdc2` `umount /dev/sdc3` … `fdisk /dev/sdc` verify : one only partition ( ' p ' to print) verify type of partition : ( ' t ' partition 1, type 83 ) save ' wq ' `mkfs.ext3 /dev/sdc1` `mkdir /mnt/tempo` `mount -t ext3 /dev/sdc1 /mnt/tempo` `cd ~/ac100` `tar –lzma -xvf Ubuntu5.tar.lzma –numeric-owner -C /mnt/tempo/` `sync` `umount /mnt/tempo` Unplug your USB key, or SD card. RUN UBUNTU Completely power off your AC100 : hold “Power switch” for 10s insert your 4G USB key, or SD card on your AC100 Press HOME key continuously and press “Power switch” for 3 sec. Release “Power switch”, withe led will turn on in 2-3 second, release HOME key type '1' when prompting for recovery. Let the installer came up. Enable the Network**

continue install

you're done.