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robertcoogan

macrumors 6502a
Original poster
Apr 5, 2008
844
1,258
Joshua Tree, California
I have tried to download and update my iMac from 10.11.1 to 10.11.2 (this update is for both Recovery Update 1.0 and El Capitan 10.11.2). My MBP updated fine with no issues. SIP (rootless) is disabled on both my iMac and MBP. I did not have to re-enable SIP to update the MBP, it continues to be disabled and the OS (and third-party app) work fine.

My iMac will attempt the update by first prompting me for a restart (nothing unusual there). Then it goes to a black screen and hangs. The mouse cursor can still be moved around using either the BT mouse or the Apple Trackpad. But it stays stuck on that black screen, nothing else happens. I left it like that for over an hour, hoping it would finish whatever processes were at work under the hood, but it won't even sleep (the fan hums away, but the screen does turn off, as I have it set in Energy Prefs).

I also cannot boot to Recovery Drive. I was going to do this to check the disk.

Anyone have a similar problem? Any idea why I cannot update? The HD is new, only five dos. old. I have already run updates while this HD has been installed.

UPDATE: I downloaded the offline installer and it too results in the same problem. I can't get the iMac to update. I did notice something weird - I can still connect to the iMac from my MBP...I can access the files and also Screen Sharing (but it shows a black screen, and I can move the cursor around).
 
i would suggest that your next step is to reinstall, using the full 10.11.2 installer. You can download that from your App Store. Best method is to create a bootable installer from the downloaded El Capitan installer app, either on an 8GB flash drive, or a partition on a convenient USB external hard drive. Do you need some help with doing that?
 
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i would suggest that your next step is to reinstall, using the full 10.11.2 installer. You can download that from your App Store. Best method is to create a bootable installer from the downloaded El Capitan installer app, either on an 8GB flash drive, or a partition on a convenient USB external hard drive. Do you need some help with doing that?

No, I was hoping to avoid it. This is the second time I will have done this. El Capitan is turning out to be a real pain.
 
[looks back with brow furrowed] - As you have tried (and failed) with the update install, I curious to know how a full reinstall is something to avoid...
If you can't get booted properly after the update install, then my theory is that you have something else going on with your existing system, and a simple reinstall of the system (installing over the top of what you have now) may fix completely.

The "offline installer" that you downloaded... Was that for the combined 10.11.2 updater? If not, you could try that (combined updater) next.

Does your iMac have a hard drive (and not an SSD) ?
 
Just an idea, but what is the app that you are having to disable SIP for? I'm wondering if you disabled that app and tried the update if it would work. Might be that app is causing a conflict.
 
I have tried to download and update my iMac from 10.11.1 to 10.11.2 (this update is for both Recovery Update 1.0 and El Capitan 10.11.2). My MBP updated fine with no issues. SIP (rootless) is disabled on both my iMac and MBP. I did not have to re-enable SIP to update the MBP, it continues to be disabled and the OS (and third-party app) work fine.

My iMac will attempt the update by first prompting me for a restart (nothing unusual there). Then it goes to a black screen and hangs. The mouse cursor can still be moved around using either the BT mouse or the Apple Trackpad. But it stays stuck on that black screen, nothing else happens. I left it like that for over an hour, hoping it would finish whatever processes were at work under the hood, but it won't even sleep (the fan hums away, but the screen does turn off, as I have it set in Energy Prefs).

I also cannot boot to Recovery Drive. I was going to do this to check the disk.

Anyone have a similar problem? Any idea why I cannot update? The HD is new, only five dos. old. I have already run updates while this HD has been installed.

UPDATE: I downloaded the offline installer and it too results in the same problem. I can't get the iMac to update. I did notice something weird - I can still connect to the iMac from my MBP...I can access the files and also Screen Sharing (but it shows a black screen, and I can move the cursor around).
I HAD THE SAME PROBLEM UPDATEING OSX 10.11.2 ---- TO FIX THE PROBLEM I DID A HARD SHUT DOWN - PRESSING AND HOLDING THE POWER BUTTON ON MY MACBOOK AIR. (1) DO A SAFE MODE REBOOT BY POWERING ON WHILE HOLDING DOWN YOUR SHIFT KEY TILL YOU SEE THE LOGO STARTING TO LOAD THEN RELEASE AND LET IT REBOOT. (2) THEN SELECT YOUR APPLE UPDATES AND INSTALL OSX 10.11.2 -- IF THE INSTALL HANGS -- DO ANOTHER SHUT DAON AND SAFE REBOOT -- AT THIS POINT THE UPDATE SHOULD LOAD WHILE REBOOTING. --- HOPE IT WORKS --- IT DID FOR ME.
 
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