I can get through hours without a problem using Adobe, AutoCAD and web browser, sometimes. It's random, or so it seems. For me, since the update my MBP either won't boot at all or will randomly shutdown without warning. NVIDIA GeForce GT 650M w/ 1Gb. Intel Core i7 quad-core 2.6 ghz. Macbook Pro (Retina) Mid 2012.
![]() If you’ve already upgraded to macOS 10.13.4, you’re probably safe. No data will be lost either way, but hey, make sure you have backups anyway!How common is this problem? Unclear, although there’s a discussion of it on AskDifferent that covers the same ground I did. If that doesn’t work, boot into macOS Recovery and reinstall the operating system. Restarting doesn’t help, but the first thing to try is holding down Option as the Mac boots and selecting the primary drive. Upon restart — without the user asking to install 10.13.4 — the Mac boots into the Installation Log app and shows an error saying the macOS installation couldn’t be completed. In three separate instances, a Mac that’s running macOS 10.13.3 starts running slowly. Mojvave For Mid 2012 Mac Os X Install DataFor example, if the installer finds what it considers a viable system on your target partition, it will not install anything older to that partition.There have even been circumstances in the past where a supplemental security update could supersede the latest OS installer version and render the built-in system installer absolutely useless. There’s also a chance that a “mac os x install data” folder at the root level of the target partition could be errantly left behind during an installation and require certain some specific actions to get things working correctly again.I think the Apple HT204904 article has some information about startup key combinations for reinstalling MacOS that are simplified to the extent of causing confusion. It might not even be connected to macOS 10.13.4 — perhaps the “macOS installation” that’s failing is related to the “Install system data files and security updates” checkbox, which should always remain selected (see “ Make Sure You’re Getting OS X Security Data,” 30 March 2016).If you have any insight into this problem, let us know in the comments.Did anyone experiencing the problem try the four-finger salute to reset NVRAM (hold command-option-P-R and wait for 2 or 3 additional startup chimes)? I’m pretty sure that some of these issues can be avoided by using the High Sierra 10.13.4 Combo Update, which can under most circumstances be applied to a qualifying target partition even while booted from another qualifying partition. Perhaps it’s related to the “Download newly available updates in the background” checkbox in System Preferences > App Store, although that was set differently on my two Macs. Forgot about Cmd-R mode and spent $75 at the local computer store to find out about my ignorance. I tried safe boot again but to no avail. I looked through the log and couldn’t see anything that seemed suspicious, but I’m pretty minor league on reading logs. As often happens something hangs and I reboot, but this time I ended up at the same screen you saw. Also (correct me if I’m wrong), although you can nondestructively convert an HFS+ volume to APFS, you can’t nondestructively perform the action in a reverse manner, that is, convert an APFS volume to HFS+.I’ve had to go into safe boot lately to do OS upgrades and Friday (the 13th) I decided to go for. I started experience periodic loss of power to my Drobo 5D drive only to have it start back up on its own in a minute or two. I had installed the Security Update 2018-003 10.13.6. Only one startup.You can add the DU misinformation to your list of Mac irritants.Well it’s happening to me suddenly too, on my iMac Pro running 10.3.6. 4 upgrade and since I took it in this morning and picked it up an hour ago I can’t say everything is fine. I’d probably read that “long” ago, but that became part of my $75 education.When I quickly Googled for problems with 2013 vintage MBP I found out that cable failures to the drive were common, so I quit looking then figuring OK the drive is good and I just need a cable.Everything seems OK now, the store did the. It was odd, it should have told me I can’t use DU from a hard drive on an SSD formatted with APFS. Usb to serial for macBefore doing so I did try to reset NVRAM and the SMC, and ran Disk First Aid, scanned with ClamXAV and Malwarebytes, and everything else I could think of. Finally, like others, I opted to reinstall the system. I restarted 3 times and got the log all three times. I got the aforementioned Log and message that the installation couldn’t be completed.
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