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Question:

Question: macOS hangs on backup

I am trying to back my MBP to external hdd with Time Machine.
It is going to 27GB then entire system stop responding, mouse not moving then black screen.
I am trying few times and the same result after 27GB.


Then I am trying same thing with same hdd on my wife's MBP and everything ok.
So I think it is not an issue with hdd

My environment:

MacBook Pro "Core i7" 2.5 15" Mid-2014 (MGXC2)

macOS 10.12.6 with all updates installed

HDD: Seagate Backup Plus Portable 2TB, it is brand new empty and formatted just before backup


Here is log


2018-03-15 16:33:48.082924+0200 0x35ee Info 0x80000000000041d0 904 backupd: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] Starting manual backup

2018-03-15 16:33:48.633291+0200 0x35ee Info 0x80000000000041d0 904 backupd: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] Backing up to /dev/disk2s2: /Volumes/Seagate Backup Plus Drive/Backups.backupdb

2018-03-15 16:33:48.832985+0200 0x35ee Info 0x80000000000041d0 904 backupd: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] Forcing deep traversal on source: "Macintosh HD" (device: /dev/disk1 mount: '/' fsUUID: 3FD21E9B-C0D0-3719-B662-3CCCAF47ED17 eventDBUUID: 9CB51599-33C7-4B0B-B7C8-0521024507A4)

2018-03-15 16:33:48.838036+0200 0x35ee Info 0x80000000000041d0 904 backupd: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] Found 4107157 files (229,03 ГБ) needing backup

2018-03-15 16:33:48.839261+0200 0x35ee Info 0x80000000000041d0 904 backupd: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] 250,51 ГБ required (including padding), 1,97 ТБ available

2018-03-15 17:17:04.682388+0200 0x49d Error 0x0 63 UserEventAgent: (TimeMachine) [com.apple.TimeMachine.TMLogError] Received XPC_ERROR_CONNECTION_INVALID for connection com.apple.backupd.xpc

2018-03-15 17:17:04.727015+0200 0x49d Info 0x0 63 UserEventAgent: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] com.apple.backupd-auto launchd job enabled

2018-03-15 17:17:04.735334+0200 0x49d Info 0x0 63 UserEventAgent: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] com.apple.mtmfs launchd job enabled

2018-03-15 17:17:04.955960+0200 0x5c4 Info 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] Local snapshot handler started!

2018-03-15 17:17:04.958916+0200 0x5dd Info 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogInfo] Set snapshot time: 2018-03-15 17:17:06 +0200 (current time: 2018-03-15 17:17:04 +0200)

2018-03-15 17:17:04.965095+0200 0x5e4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/private' (errno 1)

2018-03-15 17:17:04.965260+0200 0x5e4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/private/var' (errno 1)

2018-03-15 17:17:04.969519+0200 0x5e4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/private/var/db' (errno 1)

2018-03-15 17:17:04.991372+0200 0x5df Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/private/var/folders/zz' (errno 1)

2018-03-15 17:17:04.991481+0200 0x5df Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/private/var/folders/zz/zyxvp xvq6csfxvn_n0000000000000' (errno 1)

2018-03-15 17:17:04.991585+0200 0x5df Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/private/var/folders/zz/zyxvp xvq6csfxvn_n0000000000000/0' (errno 1)

2018-03-15 17:17:05.084669+0200 0x5e4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/Library' (errno 1)

2018-03-15 17:17:05.084863+0200 0x5e4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/Library/Preferences' (errno 1)

2018-03-15 17:17:05.085028+0200 0x5e4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/Library/Preferences/SystemCo nfiguration' (errno 1)

2018-03-15 17:17:05.294795+0200 0x6a4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/Library/Application Support' (errno 1)

2018-03-15 17:17:49.351272+0200 0x1184 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/usr' (errno 1)

2018-03-15 17:17:59.338415+0200 0x5c4 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] Can't trash .MobileBackups while MTM Snapshot Handler is running!

2018-03-15 17:31:05.760268+0200 0x43b9 Error 0x0 264 mtmd: (TimeMachine) [com.apple.TimeMachine.TMLogError] -[FileAttrs writeAttributesToItemAtPath:] setattrlist failed for path '/.MobileBackups/Computer/2018-03-15-171704/Volume/Applications' (errno 1)

MacBook Pro with Retina display, macOS Sierra (10.12.6)

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Mar 16, 2018 2:12 PM in response to zayass In response to zayass

I would reformat the new backup drive and try again.


Drive Partition and Format - El Capitan or Later


  1. Open Disk Utility in the Utilities' folder.
  2. After Disk Utility loads select the backup drive (out-dented entry with the mfgr.'s ID and size) from the side list.
  3. Click on the Erase tab in the Disk Utility toolbar. A panel should drop down.
  4. In the drop down panel set the partition scheme to GUID. Set the Format type to Mac OS Extended (Journaled.)
  5. Click on the Apply button and click on the Done button when it is activated.
  6. Quit Disk Utility.

Mar 16, 2018 2:12 PM

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Question: macOS hangs on backup