Now that El Capitan DP7 is available as a full installer, we can now make a bootable USB for DP7.
Instructions are slightly different to DP1 because the installer name has changed slightly.
Format a USB drive (preferably 16GB USB3) which should be called Untitled and formatted as Mac OS Extended (Journaled). The installer should be called Install OS X El Capitan Developer Beta.app and should be in your Applications folder.
Run this in terminal and wait about 20 minutes:
sudo /Applications/Install\ OS\ X\ El\ Capitan\ Developer\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ El\ Capitan\ Developer\ Beta.app --nointeraction
You can boot up from it by selecting it from the startup manager you get when starting your computer and holding down the option key.
If the installation creates a core storage logical volume you can revert it to get partitions back to normal by running these 2 commands in terminal.
diskutil cs list
and then
diskutil coreStorage revert lvUUID
where lvUUID is the last lvUUID reported by the previous Terminal command.
Then restart for everything to get back to normal after you have run these commands in Terminal.
Instructions are slightly different to DP1 because the installer name has changed slightly.
Format a USB drive (preferably 16GB USB3) which should be called Untitled and formatted as Mac OS Extended (Journaled). The installer should be called Install OS X El Capitan Developer Beta.app and should be in your Applications folder.
Run this in terminal and wait about 20 minutes:
sudo /Applications/Install\ OS\ X\ El\ Capitan\ Developer\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ OS\ X\ El\ Capitan\ Developer\ Beta.app --nointeraction
You can boot up from it by selecting it from the startup manager you get when starting your computer and holding down the option key.
If the installation creates a core storage logical volume you can revert it to get partitions back to normal by running these 2 commands in terminal.
diskutil cs list
and then
diskutil coreStorage revert lvUUID
where lvUUID is the last lvUUID reported by the previous Terminal command.
Then restart for everything to get back to normal after you have run these commands in Terminal.