So I upgraded to High Sierra from Sierra following the guide here (thanks). Everything went well and seemed fine. All was working without problems for a couple of days. I had the laptop running and left for a few minutes and when I returned it had shutdown. As per the guide, I had disabled hibernation with the following code:
Code:
sudo pmset -a hibernatemode 0
sudo rm /var/vm/sleepimage
sudo mkdir /var/vm/sleepimage
So it shouldn't have hibernated. I was unable to reboot. When I tried, I saw the dreaded universal "no" sign (a white circle with a line through it). I tried booting with the initial USB installer and saw the following:
View attachment 289527
So it appears that somehow the boot drive has become corrupted. I've no doubt that Rehabman will respond with the standard "post troubleshooting files etc.", but I can't do that since I can't boot the system. I have Macdisk installed in windows and it's able to mount the various drives, but at this point in time APFS is still in beta for Macdisk so it's read only. But the fact that it can see my APFS drive tells me that it's still intact, so it's not a hardware issue. Also, the recovery drive won't boot (I get the same error), so that option is no help. I thought that maybe someone may have run into the same issue and if so could you please tell me how you fixed it? In case it was missed, I'm using an HP 4540s (posted in my profile).
