High Sierra Installation failed - MBP keeps restarting

[Flomer]

Hi!

I tried to install High Sierra on my rMBP (late 2013 I believe) today. I start the installation and went out to do some other things. When I got back my mac was turned off. I turn it on, the Apple logo shows up and the status bar starts moving a bit, but then I get this error: https://imgur.com/a/kbIlg and the mac restarts. This issue keeps looping. I have not clue what this error means but I assume something went terribly wrong during the update.

I've tried to reset NVRAM but the issue still remains. I tried to enter into safe mode but got this image: https://support.apple.com/library/c...en_US/osx/mac-prohibit-symbol-screen-icon.png

I have been able to boot into Disk Utility and my question is now what action would you recommend me to take? Reinstall OS? Run Disk repair? I do unfortunatley not have a back up available.. and I'm currently in Korea so I can't head to an Apple Store.

Thanks!

 

[Audit13]

Try internet recovery to reinstall.

 

[Fishrrman]

If internet recovery doesn't work, you might try going to eBay, then buying a USB flash drive with a copy of the Mac OS installer on it. There are folks who sell these for about $20.

Something to be aware of...
IF the High Sierra installer has already converted your internal drive to APFS, I'm thinking the only USB installer that will work (and save your files) is another High Sierra installer. This may be the only workable approach if you wish to keep any files on the drive.

IF the drive has been converted to APFS, and IF you use a Low Sierra installer, it's probably not going to work until you go to Disk Utility and erase the internal drive first. Of course, you will lose all your files if you do this.

Are you learning what "a backup" is for yet?