In the El Capitan installer splash screen, it says, "To repair your disk using disk utility, restore your computer from a Time Machine backup, or perform other tasks using utilities, choose an option from the Utilities menu."
However, Time Machine is not an option in the Utilities menu! Is there a way around this? I want to restore directly from a Time Machine backup, but my device (2008 iMac) does not support Recovery Mode.
Best Answer
The necessity for this is very limited. Here's the situation it will help with:
In order to do a Time Machine system restore on a drive without a (working) Recovery partition without installing macOS first, follow the following steps:
Get access to a recovery partition. There are a few options:
2.1 Attempt to install macOS onto your computer. After it reboots, don't continue the installation; instead, restart into your bootable drive (TechTool eDrive, USB key, whatever you have).
2.2. Alternately, use Recovery Partition Creator (MacWorld has instructions).
2.3. Lifewire has another method. I've discovered that you can run Disk Utility 13 (that has the option of the Debug menu mentioned in the Lifewire article) in El Capitan if you hack it first.
A disk image called "OS X Base System" will appear on your desktop.
Launch Terminal.
Paste the following command, hit Return, then input your password when prompted:
sudo -b /Volumes/OS\ X\ Base\ System/System/Installation/CDIS/Time\ Machine\ System\ Restore.app/Contents/MacOS/Time\ Machine\ System\ Restore
(The reason for this is that Time Machine System Restore must be launched as root in order for it to properly restore your permissions.)