MAC CHECK DISK FOR ERRORS HIGH SIERRA HOW TO
MAC CHECK DISK FOR ERRORS HIGH SIERRA MAC OS

Given the time I've spent trying to fix this it is ultimately faster to just flatten and re-install.

MAC CHECK DISK FOR ERRORS HIGH SIERRA HOW TO

I had intended on further testing/troubleshooting how to get this to work without blowing away my install but my TimeMachine backup (took 12+ hours to restore) somehow prompted me for the wrong Apple ID (I had changed mine about a year ago) and wouldn't let me progress with the restore past that. I tried disabling time machine, running disk recovery, re-installing Sierra through recovery mode (failed / file unavailable), re-installing High Sierra via recovery mode (installer failed), installing Sierra via a USB drive (hold down option, select USB drive with image on it), and probably something else I'm forgetting to mention. Open Diskutil and reformat the drive to APFS ****Note that you will lose any data stored on the drive**** Open Terminal and force unmount the driveģ. Boot into internet recovery mode Option-Command-RĢ. Sep 27 15:32:48 Hostname OSInstaller: Clearing automation and attempting to rebless. Sep 27 15:32:48 Hostname OSInstaller: Disk repair retry failed too many times. But just in case, here is the list of compatible Mac computers with macOS High Sierra. But if your Mac can run macOS Sierra then it will be able to run macOS High Sierra just fine. Sep 27 15:32:48 Hostname OSInstaller: Restoring the original state found as mounted. Is Your Mac Compatible with High Sierra This is vital information.

Sep 27 15:32:48 Hostname OSInstaller: Volume could not be unmounted. Sep 27 15:32:48 Hostname diskmanagementd: diskmanagement: : mount failed: err=-69888 un0mt1=0 timeout=0 dissenter=1 dissenterpid=0 dissenterstatus=49168=0xc010 Sep 27 15:32:48 Hostname OSInstaller: Repairing file system. Sep 27 15:32:48 Hostname OSInstaller: Storage system check exit code is 0. Sep 27 15:32:48 Hostname diskmanagementd: diskmanagement: rawLaunch_block_invoke: waitpid(2) pid=586 ret/errno=586/35 status=0x00000000 exit=0 I had no issues upgrading on my older iMac, 15-inch Macbook pro with touchbar, or VMs. The exception are the Macs that originally shipped with a recovery DVD prior to Lion, or earlier Macs that lack the firmware update to boot into Internet Recovery.

MAC CHECK DISK FOR ERRORS HIGH SIERRA MAC OS

I've also re-downloaded the installer several times. This means if you re-install Mac OS Lion 10.7 on a Mac that shipped with 10.7 and decide to upgrade to High Sierra, you will still have the Lion 10.7 Internet Recovery image. Attempting to find out an effective solution to the fixation of Mac OS High Sierra Install Failed issue as have tried. I've tried disk utility repairs both in Sierra, while in the High Sierra installer, and by booting into recovery mode. I have the exact same issue with a late 2016 27-inch iMac with 1TB SSD.

Mac check disk for errors high sierra