After upgrade from OS 10.6.8 to 10.8.2, MacBookPro intermittently requires 'exit' and 'boot'
commands to exit startup script and finnish booting. So far 'exit' and 'boot' does the job but
I'm hoping for a permanent fix. Thanks! Jay
Thanks Barney! Recovery HD "Repair" was not available so I Verified Disk "This voume Mac OS X Base System appears to be OK" Next, I reinstalled OS 10.8.2 from a fresh download but the Startup Script still stopped and required 'exit' and 'boot' to finish startup.
However, I noticed RESTART did not exhibit this problem, only STARTUP from Power Up. It's still intermittant so I'll keep investigating.
- I did boot into Recovery, and, within Disk Utility, ran Verify Disk on my Mac HD.
- Yes, the Repair button was greyed out.
- I noticed Recovery showed my Mac HD and, apparently, the physical hardware with the Manufacturer's Name. So, I ran Verify Disk on the Mfr's disk too. I expect they're one and the same because they were
identical size. I have only one hard drive on this MacBookPro and am wirelessly connected to my Time
Capsule for backup.
Did it find anything wrong with the disk when you verified?
Try resetting PRAM by holding down cmd-opt-P-R during restart. Keep holding until you here the startup tone twice, then let go.
Another thing to try is Safe Mode. Restart holding down the Shift key. It will run disk checks and clear some caches. You should see a progress bar while it runs the checks. It will boot to the login screen, so make sure you know your login password.
I don't know why it was grayed out. Macintosh HD is the boot Volume. The manufacturer name/size is the physical device. Repairing each does different things. I don't know why it is grayed out, but maybe resetting PRAM will help.
- resetting PRAM executed OK
- I booted to SafeMode OK; but didn't see a progress bar. Logged in OK
- I opened Disk Util from Apps and ran:
- Verify Disk Permissions; this revealed numerous errors
- Disk Permissions Repair, completed OK
I appreciate the guidance. I was on DOS, then Windows, from 1990 to 2009; then
bought my first Mac, this MacBook Pro, in late '09. I'm beginning to recall
directory/registry details from those DOS/Windows years. Choosing to repair
a registry fault on this Mac was new to me; that's why I sought guidance.
Interestingly, my 2011 iMac upgraded from Snow Leopard to Mountain Lion
without faults. Until my MacBook Pro startup glitch, I'd experienced no faults
of any kind with either Mac.
I'll monitor startup/restart activity to see if 'Disk Permissions Repair' resolved
failure to execute full startup without 'exit' & 'boot'.
With the permissions repaired, is the Repair Disk button available now from Disk utility in the Recovery HD?
Also, you may see a lot of stuff when repairing permissions. Much of it is completely irrelevant and is not actually a problem. When you run it again, you will likely see many similarities as those things are not actual problems that need repair.
It is quite possible that it did repair some stuff that fixed your problem, but I just want to warn you against freaking out if you repair permissions again, sometime, and see the same stuff over and over. Basically, the source Repair Permissions uses to check the permissions may not be correct for some files after updates. It flags them as being incorrect, but they are really ok and they don't actually get changed, despite what it says.
Barney: After Permissions Repair, the Repair Disk is still greyed out in Disk Utility when I boot into Recovery HD.
Since running Permissions Repair and Repair Disk from Disk Utility.app, I've had two instances of the hung boot and noticed, if I wait several seconds after entering 'exit', the boot completes. So, I was in error about the 'boot' entry; it's not needed. As always, after a boot requiring user input of 'exit' the Shut Down runs a short script too but requires no user input to finish.
I'll continue to monitor for boot issues; and, beyond AutoUpdate, I select Software Update every day.