Can no longer boot ...
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Can no longer boot after upgrade to 5.6.1

Active Member Customer

I updated today from 5.6 to 5.6.1 and it asked me to update the diver and restart. On restart, about halfway through the grey macOS leading screen, it now switches to a screen with the "no" symbol (circle with diagonal line through it). If I try safe mode, I have the same problem. I have booted from an eternal drive, and re-installed the SoftRAID driver, but no luck. I have updaters the boot cache. No luck. What do I do?

Topic starter Posted : 12/07/2017 3:32 pm
Member Admin

Generally "rebuild boot cache is all that is required. Lets make sure you are doing it correctly.
Boot from the other volume.
Select the volume tile for the volume that does not boot.
Select Rebuild boot cache.
(you can also reinstall SoftRAID driver onto that volume.)

If it still does not boot, there is another issue. If you have Disk Warrior, repair the volume, and likely that will do it. (You can try Disk Utility "first aid", it is not as good at repairing issues, but free)

Posted : 13/07/2017 1:45 am
Active Member Customer

I had tried all of those things, in various combinations, but to no avail. Here is what did work...
- uninstalled the SoftRAID driver
- reinstalled the SoftRAID driver
- rebuilt the boot cache
- rebuilt the Volume with Disk Warrior
On previous attempts I had only completed some of these steps (and never Disk Warrior). If I recall correctly, I had the exact same issue when I upgraded to 5.6.0. In both cases, there were no signs of directory corruption, and indeed Disk Utility reported back no changes. I don't get it.

Topic starter Posted : 13/07/2017 9:50 am
Member Admin

Disk Warrior replaces, not repairs, the directory. Even thought it may not have detected a "problem" it replaced something that boot root was relying on for booting.

Glad you are working.

Posted : 13/07/2017 12:20 pm