You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Time Machine couldn't complete back up

I have not been able to complete a back up for a couple of weeks now. Keep getting this message...


'Files can’t be copied onto the backup disk because it is read-only. You may need to repair or erase the disk using Disk Utility. If the disk can’t be repaired, select a different disk for backups.'


I have been using the My Passport for 2 years and haven't had a problem. There is space so unsure why its not backing up.


Thanks

MacBook Pro 13″, macOS 10.15

Posted on May 27, 2020 8:35 AM

Reply
Question marked as Top-ranking reply

Posted on May 27, 2020 8:59 AM

Ames6881 wrote:

I have not been able to complete a back up for a couple of weeks now. Keep getting this message...

'Files can’t be copied onto the backup disk because it is read-only. You may need to repair or erase the disk using Disk Utility. If the disk can’t be repaired, select a different disk for backups.'

I have been using the My Passport for 2 years and haven't had a problem. There is space so unsure why its not backing up.

Thanks



Drives can fail at anytime.


Time Machine has completed ... a new backup for you, or get a message saying it can't create the backup.


That message reappears it is likely the TM disk has been operating in a state of failure, and will continue to reappear with increasing frequency.


The solution is to replace it.



Learn more about backup disks that you can use with Time Machine —https://support.apple.com/kb/HT202784


If you need to create a new backup from Mac—

https://support.apple.com/guide/mac-help/if-you-need-to-create-a-new-backup-mh34042/10.14/mac/10.15


https://support.apple.com/guide/mac-help/time-machine-troubleshooting-mh15653/mac

1 reply
Question marked as Top-ranking reply

May 27, 2020 8:59 AM in response to Ames6881

Ames6881 wrote:

I have not been able to complete a back up for a couple of weeks now. Keep getting this message...

'Files can’t be copied onto the backup disk because it is read-only. You may need to repair or erase the disk using Disk Utility. If the disk can’t be repaired, select a different disk for backups.'

I have been using the My Passport for 2 years and haven't had a problem. There is space so unsure why its not backing up.

Thanks



Drives can fail at anytime.


Time Machine has completed ... a new backup for you, or get a message saying it can't create the backup.


That message reappears it is likely the TM disk has been operating in a state of failure, and will continue to reappear with increasing frequency.


The solution is to replace it.



Learn more about backup disks that you can use with Time Machine —https://support.apple.com/kb/HT202784


If you need to create a new backup from Mac—

https://support.apple.com/guide/mac-help/if-you-need-to-create-a-new-backup-mh34042/10.14/mac/10.15


https://support.apple.com/guide/mac-help/time-machine-troubleshooting-mh15653/mac

Time Machine couldn't complete back up

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.