[Chromebooks] leond:
Does Camd64OS_R55-8777.0-Special.7z already contain the chromeos_10323.62.0_cyan_recovery_stable-channel_mp-v3.bin recovery, or do I still need to use the script in the original post to add it to sdb3? if not, why not to include it there in the first place? Or is this allows to inject recovery for different devices? What is in sdb3 of the 7z by default?

---------- Post added at 11:50 AM ---------- Previous post was at 11:01 AM ----------

Today I got my first Chromebook - grabbed Acer C720 from eBay. I have 0 experience with Chrome os so had to figure few things out. Here is what I did to get google play store working on my c720 with the touchscreen. All the credit is to the nabil2000. I just collected all he said in one post. Please correct me if i got things wrong:

1)	Download and install win32diskimager-1.0.0-install.exe

https://ayera.dl.sourceforge.net/project/win32diskimager/Archive/win32diskimager-1.0.0-install.exe

2)	Download extract and write to USB stick:

Camd64OS_R55-8777.0-Special.7z

https://www.dropbox.com/s/kebu46foi6quu96/Camd64OS_R55-8777.0-Special.7z?dl=0

Use 7zip to extract IMG file from the downloaded file.

Use Win32 Image Writer, then select the IMG file and select the USB device from the menu.

Click on “Write”.

3)	Download and extract:

chromeos_10323.62.0_cyan_recovery_stable-channel_mp-v3.bin.zip

https://dl.google.com/dl/edgedl/chr....0_cyan_recovery_stable-channel_mp-v3.bin.zip

Also, [MENTION=258618]nabil2000[/MENTION] says you can use this one now:

https://dl.google.com/dl/edgedl/chr....0_cyan_recovery_stable-channel_mp-v3.bin.zip

4a) on ChromeOS

press ctrl + alt + T and this brings you to what's called the crosh shell (command prompt or terminal) on a Chromebook. It'll now launch in a separate tab of the Chrome browser. Once the crosh shell has launched, you'll type “shell” to get to the root Linux shell from within your Chrome Browser

CTRL-C to copy and CTRL-Shift-V to paste into the terminal

4b) On Ubuntu machine:

sudo apt-get install cgpt

5)	Create the script file:

vi /tmp/myscript.sh

# Get rid of the space in the first line in "stable" - no idea why xda forum injects a space there:

image_file=chromeos_10323.62.0_cyan_recovery_stable-channel_mp-v3.bin

or the line below ,depending on which one you got in step 3

image_file=chromeos_10575.58.0_cyan_recovery_stable-channel_mp-v3.bin

rootfs_start="`cgpt show -i 3 -n -b -q $image_file`"

rootfs_size="`cgpt show -i 3 -n -s -q $image_file`"

mkdir chrome_efi_mount

sudo mount /dev/sdb12 chrome_efi_mount -t vfat

mkdir chromium_efi_mount

sudo mount -ro loop,offset=$((`cgpt show -i 12 -n -b -q $image_file`*512)) $image_file chromium_efi_mount

sudo cp chromium_efi_mount/syslinux/vmlinuz.B chrome_efi_mount/syslinux/vmlinuz.B -f

sudo cp chromium_efi_mount/syslinux/vmlinuz.B chrome_efi_mount/syslinux/vmlinuz.A -f

sudo umount chrome_efi_mount

sudo umount chromium_efi_mount

sudo dd if=$image_file of=/dev/sdb3 bs=512 skip=$rootfs_start count=$rootfs_size

6)	Copy .bin file to the same folder as a script

At this point I assume your recovery .bin file should be located in the same folder as the script

cp /media/samba_share/Downloads/c720/*.bin .

7)	verify that your usb stick is indeed /dev/sdb using dmesg

8) run the script - on ubuntu I used

bash -x myscript.sh

9)	to boot from USB you probably need to follow steps 1&3 (not sure if you need step 2) from here http://www.fascinatingcaptain.com/blog/dual-boot-chrome-os-and-linux/

from the shell:

sudo crossystem dev_boot_usb=1 dev_boot_legacy=1

sudo enable_dev_usb_boot

my system already came shipped with developers mode on, so I have not had to do step 1

10)Boot from USB stick

Unmount and remove that flash drive and insert it into one of your Chromebooks USB ports. Boot the device and then, at the startup screen, press Ctrl+l to boot from the legacy BIOS. When prompted, hit Esc to enter the boot menu and select 1 for the USB drive

At that point my Chromebook booted and I have google play store. Everything is pretty slow, but I think this is due to the old and slow USB stick. I will now buy a faster low profile one. IS my USB stick now my storage. I have very little storage (about 3GB) after booting from USB. How can I expand it if I have a 32 GB stick? Any recommendations on the USB stick to use?

>There's a more recent ROM (v66) that can be used to load Google Chrome OS with Play Store on USB of hybrid tablet Acer Iconia W700

Does this also apply to c720?