markfromtc
Level 1
(7 points)
Q: Boot Camp Assistant is stuck at "Downloading windows support software...0 minutes 0 seconds remaining (for 48 hours and counting)" for Windows 10 Pro
Boot Camp Assistant is stuck at "Downloading windows support software...0 minutes 0 seconds remaining (for 48 hours and counting)" for Windows 10 Pro.
I did Boot Camp with 8.1 on this system successfully but the Windows 10 upgrade dorked up BootCamp when it added the system partition. Took a lot of work but in the end got all the partitions gone and tried Boot Camp and got this. I then erased the disk and reinstalled El Capitan factory fresh without bringing over settings. Now I still get the same error?
I've tried a few sizes from ~50G to 170G with no luck. This is on a 2016 MBP 15" with retina display, 512G SSD, 16G RAM, GPU.
Any suggestions? Troubleshooting? I can't even find/tell if this thing creates anything useful for a log file or ??
MacBook Pro with Retina display, OS X El Capitan (10.11.3), 15" 2016 MBP w/512G SSD
markfromtc
Level 1
(7 points)
In the end I resolved my issue but none of the advice out there had anything to do with it...
At some point in the process I used the "diskutil verifyDisk /dev/disk0" and everything would verify but at the end it would report:
The volume could not be verified completely
File system check exit code is 8
Updating boot support partitions for the volume as required
Error: -69845: File system verify or repair failed
Underlying error: 8: POSIX reports: Exec format error
All attempts at repairDisk failed even in the recovery console. I tried the manual dd repair of the UEFI partition (no change) and deleting just the primary partition. But in the end I had to delete the MacOS primary volume all the way up to and including the VolumeGroup (as shown by "diskutil coreStorage list"). Unless I deleted all the way to that level "diskutil verifyDisk" reported the error.
After that "diskutil verifyDisk" would succeed. Then I reinstalled MacOS from scratch. Then finally Boot Camp Assistant was successful (other than I ran into the issue of the RealTek audio install hanging and having to do the manually install and kill the correct setup.exe instance).
So the lesson is BCA is dumb about even the slightest error in the disk, filesystems or partitions and provides no output (there was nothing in the console logs). Make sure a "diskutil verifyDisk" on your target disk is 100.0% error free (note that this error only showed up with the CLI command...the Disk Utility GUI would report "potential" problems with no details and then claim it fixed them). That fact this manifests itself as a silent hang kind of *****, but so it goes, Mac OS isn't very good at being transparent on errors.
So run "diskutil verifyDisk /dev/disk0" (device name could be different in some cases and will be different in the recovery mode console) and make sure it is 100.0% error free. If not resolve all issues there before any further attempts with Boot Camp.
In my case this was all a case of the Mac getting wrapped around the axle from the original issue when the Windows 8.1 upgraded added the boot system partition. I think this is optional in 8.0 and 8.1 home but now required in 8.1 Pro.
So I'm good...YMMV. Good luck.
