I'm currently having a Macbook Air 120GB SSD where I tried to update the OSX to El Capitan. Very first it did not want to update due to lack of disk space.
After I cleared up some photos so it had around 3-4 GB available space, the installer of OSX launched and started loading, after few minutes it booted into a setup-only mode, where you only see the setup and select language and click next-next-next, but at this point it now stops me saying "not enough disk space".
That's fair enough, but now I'm stuck in this bootmode, if I turn off or reboot my Mac, it reboots into this installer again and I can't really exit and get back to my OSX to delete more files to free up some diskspace. I'm basically stuck in the updater itself when booting.
Any suggestions how I can get out of this boot and back to the original OSX, so I can free up some space? Thanks in advance.