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Helpful answers
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Nov 14, 2014 4:33 PM in response to samuel21by samuel21,CORRECTION this is for Macbook - not iPad or iOS
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Nov 14, 2014 7:50 PM in response to samuel21by Linc Davis,Are you saying that you have another Mac backing up to the same backup device? What is the device?
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Nov 15, 2014 5:24 AM in response to Linc Davisby samuel21,Thank you for response Mr. Davis,
I have an iMAC and a Macbook - The iMac will back up to my 2tb apple airport just fine. but my macbook has stopped - it says to contact the system administrator
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Nov 15, 2014 11:40 AM in response to samuel21by Linc Davis,These instructions must be carried out as an administrator on the machine that's having problems. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
The title of the Console window should be All Messages. If it isn't, select
SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar at the top of the screen.
In the top right corner of the Console window, there's a search box labeled Filter. Initially the words "String Matching" are shown in that box. Enter the word "Starting" (without the quotes.) You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard."
Each message in the log begins with the date and time when it was entered. Note the timestamp of the last "Starting" message that corresponds to the beginning of an an abnormal backup. Now
CLEAR THE WORD "Starting" FROM THE TEXT FIELD
so that all messages are showing, and scroll back in the log to the time you noted. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
☞ If all you see are messages that contain the word "Starting," you didn't clear the text field.
☞ The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. Don't post more than is requested.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
☞ Some private information, such as your name, may appear in the log. Anonymize before posting.
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Nov 15, 2014 1:45 PM in response to Linc Davisby samuel21,I think I have a train wreck here. I should probably start with an OS reload. This Macbook was pretty cheap. Owner did not have root password - I should hasve stopped right there. The line below appears hundreds of times ...
11/13/14 3:16:52.765 PM com.apple.xpc.launchd[1]: (com.apple.backupd-helper.status) The HideUntilCheckIn property is an architectural performance issue. Please transition away from it.
11/13/14 3:16:52.765 PM com.apple.xpc.launchd[1]: (com.apple.backupd-auto) This service is defined to be constantly running and is inherently inefficient
A back will begin shortly -
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Nov 15, 2014 1:54 PM in response to samuel21by Linc Davis,Those log messages are routine. However, if this is a used computer, see below.
Before buying a second-hand computer, you should have run Apple Diagnostics or the Apple Hardware Test, whichever is applicable.
The first thing to do after buying the computer is to erase the internal drive and install a clean copy of OS X. You—not the original owner—must do that. Changes made by Apple over the years have made this seemingly straightforward task very complex.
How you go about it depends on the model, and on whether you already own another Mac. If you're not sure of the model, enter the serial number on this page. Then find the model on this page to see what OS version was originally installed.
It's unsafe, and may be unlawful, to use a computer with software installed by a previous owner.
1. If you don't own another Mac
a. If the machine shipped with OS X 10.4 or 10.5, you need a boxed and shrink-wrapped retail Snow Leopard (OS X 10.6) installation disc from the Apple Store or a reputable reseller—not from eBay or anything of the kind. If the machine is very old and has less than 1 GB of memory, you'll need to add more in order to install 10.6. Preferably, install as much memory as it can take, according to the technical specifications.
b. If the machine shipped with OS X 10.6, you need the installation media that came with it: gray installation discs, or a USB flash drive for a MacBook Air. You should have received the media from the original owner, but if you didn't, order replacements from Apple. A retail disc, or the gray discs from another model, will not work.
To start up from an optical disc or a flash drive, insert it, then restart the computer and hold down the C key at the startup chime. Release the key when you see the gray Apple logo on the screen.
c. If the machine shipped with OS X 10.7 or later, you don't need media. It should start up in Internet Recovery mode when you hold down the key combination option-command-R at the startup chime. Release the keys when you see a spinning globe.
d. Some 2010-2011 models shipped with OS X 10.6 and received a firmware update after 10.7 was released, enabling them to use Internet Recovery. If you have one of those models, you can't reinstall 10.6 even from the original media, and Internet Recovery will not work either without the original owner's Apple ID. In that case, contact Apple Support, or take the machine to an Apple Store or another authorized service provider to have the OS installed.
2. If you do own another Mac
If you already own another Mac that was upgraded in the App Store to the version of OS X that you want to install, and if the new Mac is compatible with it, then you can install it. Use Recovery Disk Assistant to prepare a USB device, then start up the new Mac from it by holding down the C key at the startup chime. Alternatively, if you have a Time Machine backup of OS X 10.7.3 or later on an external hard drive (not a Time Capsule or other network device), you can start from that by holding down the option key and selecting it from the row of icons that appears. Note that if your other Mac was never upgraded in the App Store, you can't use this method.
3. Partition and install OS X
a. If you see a lock screen when trying to start up from installation media or in Recovery mode, then a firmware password was set by the previous owner, or the machine was remotely locked via iCloud. You'll either have to contact the owner or take the machine to an Apple Store or another service provider to be unlocked. You may be asked for proof of ownership.
b. Launch Disk Utility and select the icon of the internal drive—not any of the volume icons nested beneath it. In the Partition tab, select the default options: a GUID partition table with one data volume in Mac OS Extended (Journaled) format. This operation will permanently remove all existing data on the drive.
c. An unusual problem may arise if all the following conditions apply:
OS X 10.7 or later was installed by the previous owner
The startup volume was encrypted with FileVault
You're booted in Recovery mode (that is, not from a 10.6 installation disc)
In that case, you won't be able to unlock the volume or partition the drive without the FileVault password. Ask for guidance or see this discussion.
d. After partitioning, quit Disk Utility and run the OS X Installer. If you're installing a version of OS X acquired from the App Store, you will need the Apple ID and password that you used. When the installation is done, the system will automatically restart into the Setup Assistant, which will prompt you to transfer the data from another Mac, its backups, or from a Windows computer. If you have any data to transfer, this is usually the best time to do it.
e. Run Software Update and install all available system updates from Apple. To upgrade to a major version of OS X newer than 10.6, get it from the Mac App Store. Note that you can't keep an upgraded version that was installed by the original owner. He or she can't legally transfer it to you, and without the Apple ID you won't be able to update it in Software Update or reinstall, if that becomes necessary. The same goes for any App Store products that the previous owner installed—you have to repurchase them.
4. Other issues
a. If the original owner "accepted" the bundled iLife applications (iPhoto, iMovie, and Garage Band) in the App Store so that he or she could update them, then they're irrevocably linked to that Apple ID and you won't be able to download them without buying them. Reportedly, Mac App Store Customer Service has sometimes issued redemption codes for these apps to second owners who asked.
b. If the previous owner didn't deauthorize the computer in the iTunes Store under his Apple ID, you wont be able to authorize it immediately under your ID. In that case, you'll either have to wait up to 90 days or contact iTunes Support.
c. When trying to create a new iCloud account, you might get a failure message: "Account limit reached." Apple imposes a lifetime limit of three iCloud account setups per device. Erasing the device does not reset the limit. You can still use an iCloud account that was created on another device, but you won't be able to create a new one. Contact iCloud Support for more information. The setup limit doesn't apply to Apple ID accounts used for other services, such as the iTunes and Mac App Stores, or iMessage. You can create as many of those accounts as you like.
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Nov 15, 2014 2:17 PM in response to Linc Davisby samuel21,here are the syslogs from a fresh backup
Nov 15 16:57:51 sams-Mac.local com.apple.backupd[2553]: Starting automatic backup
Nov 15 16:57:51 sams-Mac.local com.apple.backupd[2553]: Network destination already mounted at: /Volumes/Data
Nov 15 16:57:52 sams-Mac.local com.apple.backupd[2553]: Found 1 partially deleted backup image.
Nov 15 16:59:31 sams-Mac.local com.apple.backupd[2553]: Failed to remove file:///Volumes/Data/Samuel%20Mills%E2%80%99s%20iMac%20(2).purgeable/, error: Error Domain=NSCocoaErrorDomain Code=512 "“Samuel Mills’s iMac (2).purgeable” couldn’t be removed." UserInfo=0x7f80f52a9fa0 {NSFilePath=/Volumes/Data/Samuel Mills’s iMac (2).purgeable, NSUserStringVariant=(
Nov 15 16:59:31 sams-Mac.local com.apple.backupd[2553]: Error deleting partial image /Volumes/Data/Samuel Mills’s iMac (2).purgeable: Error Domain=NSCocoaErrorDomain Code=512 "“Samuel Mills’s iMac (2).purgeable” couldn’t be removed." UserInfo=0x7f80f52a9fa0 {NSFilePath=/Volumes/Data/Samuel Mills’s iMac (2).purgeable, NSUserStringVariant=(
Nov 15 16:59:38 sams-Mac.local com.apple.backupd[2553]: Renaming /Volumes/Data/sams_Mac 1.sparsebundle to /Volumes/Data/sams_Mac.sparsebundle
Nov 15 16:59:38 sams-Mac.local com.apple.backupd[2553]: Failed to move /Volumes/Data/sams_Mac 1.sparsebundle to file:///Volumes/Data/sams_Mac.sparsebundle/ error Error Domain=NSCocoaErrorDomain Code=516 "“sams_Mac 1” couldn’t be moved to “Data” because an item with the same name already exists." UserInfo=0x7f80f5250c90 {NSSourceFilePathErrorKey=/Volumes/Data/sams_Mac 1.sparsebundle, NSUserStringVariant=(
Nov 15 17:04:29 sams-Mac.local com.apple.backupd[2553]: Failed to mount disk image: Error Domain=com.apple.backupd.ErrorDomain Code=21 "The operation couldn’t be completed. (com.apple.backupd.ErrorDomain error 21.)" UserInfo=0x7f80f3d44bd0 {MessageParameters=(
Nov 15 17:04:32 sams-Mac.local com.apple.backupd[2553]: Ejected Time Machine network volume.
Nov 15 17:04:32 sams-Mac.local com.apple.backupd[2553]: Waiting 60 seconds and trying again.
Nov 15 17:05:37 sams-Mac.local com.apple.backupd[2553]: Attempting to mount network destination URL: afp://Sam%20Mills;AUTH=SRP@Samuel%20Mills's%20Time%20Capsule._afpovertcp._tcp.l ocal/Data
Nov 15 17:05:45 sams-Mac.local com.apple.backupd[2553]: Mounted network destination at mount point: /Volumes/Data using URL: afp://Sam%20Mills;AUTH=SRP@Samuel%20Mills's%20Time%20Capsule._afpovertcp._tcp.l ocal/Data
Nov 15 17:05:46 sams-Mac.local com.apple.backupd[2553]: Found 1 partially deleted backup image.
Nov 15 17:07:07 sams-Mac.local com.apple.backupd[2553]: Failed to remove file:///Volumes/Data/Samuel%20Mills%E2%80%99s%20iMac%20(2).purgeable/, error: Error Domain=NSCocoaErrorDomain Code=512 "“Samuel Mills’s iMac (2).purgeable” couldn’t be removed." UserInfo=0x7f80f5300130 {NSFilePath=/Volumes/Data/Samuel Mills’s iMac (2).purgeable, NSUserStringVariant=(
Nov 15 17:07:07 sams-Mac.local com.apple.backupd[2553]: Error deleting partial image /Volumes/Data/Samuel Mills’s iMac (2).purgeable: Error Domain=NSCocoaErrorDomain Code=512 "“Samuel Mills’s iMac (2).purgeable” couldn’t be removed." UserInfo=0x7f80f5300130 {NSFilePath=/Volumes/Data/Samuel Mills’s iMac (2).purgeable, NSUserStringVariant=(
Nov 15 17:07:13 sams-Mac.local com.apple.backupd[2553]: Renaming /Volumes/Data/sams_Mac 1.sparsebundle to /Volumes/Data/sams_Mac.sparsebundle
Nov 15 17:07:14 sams-Mac.local com.apple.backupd[2553]: Failed to move /Volumes/Data/sams_Mac 1.sparsebundle to file:///Volumes/Data/sams_Mac.sparsebundle/ error Error Domain=NSCocoaErrorDomain Code=516 "“sams_Mac 1” couldn’t be moved to “Data” because an item with the same name already exists." UserInfo=0x7f80f5302340 {NSSourceFilePathErrorKey=/Volumes/Data/sams_Mac 1.sparsebundle, NSUserStringVariant=(
Nov 15 17:08:54 sams-Mac.local com.apple.backupd[2553]: Failed to mount disk image: Error Domain=com.apple.backupd.ErrorDomain Code=21 "The operation couldn’t be completed. (com.apple.backupd.ErrorDomain error 21.)" UserInfo=0x7f80f5307fe0 {MessageParameters=(
Nov 15 17:08:56 sams-Mac.local com.apple.backupd[2553]: Ejected Time Machine network volume.
Nov 15 17:08:56 sams-Mac.local com.apple.backupd[2553]: Waiting 60 seconds and trying again.
Nov 15 17:10:00 sams-Mac.local com.apple.backupd[2553]: Attempting to mount network destination URL: afp://Sam%20Mills;AUTH=SRP@Samuel%20Mills's%20Time%20Capsule._afpovertcp._tcp.l ocal/Data
Nov 15 17:10:12 sams-Mac.local com.apple.backupd[2553]: Mounted network destination at mount point: /Volumes/Data using URL: afp://Sam%20Mills;AUTH=SRP@Samuel%20Mills's%20Time%20Capsule._afpovertcp._tcp.l ocal/Data
Nov 15 17:10:13 sams-Mac.local com.apple.backupd[2553]: Found 1 partially deleted backup image.
Nov 15 17:11:35 sams-Mac.local com.apple.backupd[2553]: Failed to remove file:///Volumes/Data/Samuel%20Mills%E2%80%99s%20iMac%20(2).purgeable/, error: Error Domain=NSCocoaErrorDomain Code=512 "“Samuel Mills’s iMac (2).purgeable” couldn’t be removed." UserInfo=0x7f80f5250740 {NSFilePath=/Volumes/Data/Samuel Mills’s iMac (2).purgeable, NSUserStringVariant=(
Nov 15 17:11:35 sams-Mac.local com.apple.backupd[2553]: Error deleting partial image /Volumes/Data/Samuel Mills’s iMac (2).purgeable: Error Domain=NSCocoaErrorDomain Code=512 "“Samuel Mills’s iMac (2).purgeable” couldn’t be removed." UserInfo=0x7f80f5250740 {NSFilePath=/Volumes/Data/Samuel Mills’s iMac (2).purgeable, NSUserStringVariant=(
Nov 15 17:11:41 sams-Mac.local com.apple.backupd[2553]: Renaming /Volumes/Data/sams_Mac 1.sparsebundle to /Volumes/Data/sams_Mac.sparsebundle
Nov 15 17:11:41 sams-Mac.local com.apple.backupd[2553]: Failed to move /Volumes/Data/sams_Mac 1.sparsebundle to file:///Volumes/Data/sams_Mac.sparsebundle/ error Error Domain=NSCocoaErrorDomain Code=516 "“sams_Mac 1” couldn’t be moved to “Data” because an item with the same name already exists." UserInfo=0x7f80f52b2e00 {NSSourceFilePathErrorKey=/Volumes/Data/sams_Mac 1.sparsebundle, NSUserStringVariant=(
Nov 15 17:13:37 sams-Mac.local com.apple.backupd[2553]: Failed to mount disk image: Error Domain=com.apple.backupd.ErrorDomain Code=21 "The operation couldn’t be completed. (com.apple.backupd.ErrorDomain error 21.)" UserInfo=0x7f80f5103c80 {MessageParameters=(
Nov 15 17:13:39 sams-Mac.local com.apple.backupd[2553]: Ejected Time Machine network volume.
Nov 15 17:13:39 sams-Mac.local com.apple.backupd[2553]: Giving up after 3 retries.
Nov 15 17:13:39 sams-Mac.local com.apple.backupd[2553]: Backup failed with error 21: 21
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Nov 15, 2014 2:26 PM in response to samuel21by samuel21,In timemachine - i removed the back up disk and added it back - another backup is starting
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Nov 15, 2014 3:43 PM in response to samuel21by samuel21,the back up failed as before - not a big surprise.
Thanks for your help
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Nov 15, 2014 4:06 PM in response to samuel21by Linc Davis,The machine is in a completely unknown state. Using it in that state makes as much sense as buying used clothing in a thrift shop and then wearing it without washing it first. Good luck.