Dual boot *existing* Raspbian and ELEC

[Powershell]

Hi everyone!

I already have Raspbian on my Pi3 and would like to add OpenELEC as a separate OS for media.

Checked with some tutorials on NOOBS and BerryBoot, but they all suggest to install a clean OS.
Or, in case of BerryBoot, convert an existing OS ext4 to squashfs and add - but it will render it read-only.
:-[

I guess I'm stuck with backing up my Raspbian partition, and after installing 2 clean OS'es, restore it over?

Or is there a better way?

Thanks!

[procount]

If you are going to use noobs or pinn, treat your existing Raspbian as a custom os as detailed here:
https://github.com/raspberrypi/noobs/bl ... os-version

So backup your boot and root partitions as tar.xz files and put them on a usb stick in a /os/<myosname> folder along with additional metafiles as detailed in the above link.
Then install noobs/pinn on a blank sd card and install openelec from the internet and your <myosname> from the usbstick.

[Powershell]

Thanks!

Before I start, there's one confusing thing: SD Card is VFAT formatted (4GB filesize limit), but my root.tar.xz is 7 GB.

I couldnt find any option in NOOBS to install from an external USB HDD (which is NTFS). Any clue?

[procount]

There's an option in tar to compress the file output (-j? See man tar) or pipe the output of tar through xz to create a tar.xz file. This should be <4GB.

Not sure if noobs supports ntfs on a usb stick for importing OSes. Best to stick to fat32