Open Radar

 
05-Oct-2015 06:12 PM

The logs will frequently contain errors like this: 10/5/15 6:06:26.000 PM kernel[0]: disk4: alignment error.


Disk alignment errors do _not_ appear in any prior versions of OS X.

I can now confirm that this issue is new as of OS X 10.11. Using the same drive on 10.9 has no issues.

I can create an encrypted volume manually through the diskutility command line which will get it up and running. However, as it stands it is impossible to initiate a backup to these Seagate drives from Time Machine.

I have two identical Seagate 4 TB Expansion Desk Drives. This issue reproduces on both on 10.11 on two Macs. The same two drives worked just fine in previous OS X version 10.10 and prior AND continue to work just fine on OS X. I tested the same drive in a 10.9 virtual machine and it worked just fine.

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05-Oct-2015 08:51 AM


Impossible to format and encrypt a new disk for Time Machine in El Capitan GM.

Steps to Reproduce:
1. Watch the attached video

Expected Results:
I expect this to work. Basic functionality 101.

Actual Results:
Shitty experience and non-functional software. Refer to video for the horror because I am too pissed to write it out.

Version:
10.11 (15A284)

Notes:
No issues on 10.10 and prior with this same hardware configuration.

Configuration:
4 TB Seagate External Hard Drive connected via USB 2

Attachments:
'sysdiagnose_2015.10.05_08-39-58-0600_547.tar.gz' and 'DiskUtility is Crummy.mp4' were successfully uploaded.