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21st February 2013, 08:34 PM   |  #104  
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Ubuntu touch preview
Okay, I'll skip right to the instructions.

0. Requirements
You'll need MultiROM installed with recovery from at least 22nd of February. You can find downloads and installation instruction in in MultiROM's thread, as soon as you have it all installed, come back to this post.
Free space needed: a little over 1 GB.

1. Downloads
You'll need two ZIP files from this daily build page.
Base system: raring-preinstalled-armel+grouper.zip (~33 MB)
Ubuntu data: raring-preinstalled-phablet-armhf.zip (the biggest one, ~550 MB)

2. Installing base
Reboot to recovery and got to Advanced->MultiROM. Select "Add ROM" option. Choose these settings:
Choose ROM type: Android/Ubuntu touch
Share kernel with Internal ROM: Don't share
Install location: Wherever you wish to install it.

Click Next, then select ZIP file as ROM source, and choose the smaller ZIP file with base system (quantal-preinstalled-armel+grouper.zip). Proceed with installation. Do _not_ reboot after installation!
Installing on USB: if you get to screen which wants you to "Set up the size of disk images", set the size of data.img to something bigger - 1500mb should be enough.

3. Installing Ubuntu data
Select List ROMs in MultiROM menu in recovery, then select the ROM you've just created (probably named something like quantal_preinstalled...) and choose Flash ZIP option. Select the bigger ZIP file (quantal-preinstalled-phablet-armhf.zip) and flash it. Beware, this ZIP file then can't be used to flash Ubuntu without MultiROM, as it is modified in the process to suit MultiROM needs.

5. Profit
Ubuntu touch developer preview is now installed. Keep in mind that this _really_ is just a preview, so pretty much nothing will work. Looks good though.


Not much is changed, the only thing which needed to be done was to compile Ubuntu's kernel with kexec-hardboot patch. The mrom_quantal-preinstalled-armel+grouper_20130221.zip file has only different boot.img, otherwise it is exactly the same. You can use official daily builds, the patches for MultiROM are in there.

This preview is basically cyanogenmod with Ubuntu UI running in chroot, so it is really similiar to Android. I'm told that this is because the Ubuntu core and, most importantly, drivers, are not yet ready. In the future, it should be this UI running on top of standard Ubuntu core (ie. the Ubuntu raring which you already could multi-boot).
Last edited by Tasssadar; 24th May 2013 at 10:20 PM.
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