Mojave time machine back up failing

Please try making another backup and let us know how it went.

Thanks

Updated to 10.14.3 yesterday and turned on Time Machine. So far, no freezing. I'm hopeful...

I get a "backup failed" error message in notifications after but not before the backup finishes and Time Machine shows the files have been backed up. I assume a restore would fail but wouldn't want to find out. I have removed the latest backup folder which has been suggested by some and this does not cure the problem. I now have an "inprogress" file suffix running with Time Machine inFinder and the System Preference for Time Machine indicates it stuck calculating the time remaining and shows it is backing up 1.3 MB of 11.38 GB. My Time Machine folders are much larger that than 11.38 GB. I am going no going to disconnect Time Machine but I think it would only work for restoring an individual file and not everything as before.

Same thing! I just made a topic about it on here and Reddit and everyone seems to think its a problem with my drive despite knowing for a fact that my drive is perfect and this issue only started after upgrading to Mojave!

I also tried deleting the "inprogress" file including the trash file which takes a while. I then unchecked daily backups in the System Preferences for Time Machine as well. After a restart of my MacBook Pro the ensuing backup ended with the same "Time Machine Failed" message. Disk utility indicates the Backup volume is good. Finder shows the last backup folder is dated Sep 27 at 6:30 PM which is shortly before I installed Mojave. Nothing shows since then in Finder but files do show up when I enter Time Machine for files created after that date and time. Something is really screwed up.

I may have to try an alternative backup system but will wait a while. Time Machine has been good to me. Last year I upgraded my Mac Mini with a 500 GB SSD and restored the Sierra OS to the new drive with Time Machine. It went very smoothy with no hitches. It now runs High Sierra with no problems. I need the Mac Mini for my Hi Def music that is connected to a high end audio/video system with a supplemental app that makes iTunes just a file system for my music downloads in Flac or Alac. Fortunately or unfortunately as the case may be, there is no Mojave option for the Mini so I don't have another Mac to see if the problem can be replicated.

I digress but am happy I have an alternative OS to fall back on, a Chromebook. I will not say any more about it as I am getting way off the subject.

Apple has been unable to identify the problem or offer a solution that worked from my time with them on Twitter. I'm going to tell my support rep to escalate this to an engineer so that someone actually know about this and it can get fixed.

I have been raising **** on Reddit and hopefully someone will notice that this issue isn't isolated to me or a result of my specific config.

Sorry I didn't see this post and I started another one. I have the same problem with Time Machine. I even replaced the HDD in my Lacie 4TB external Thunderbolt drive as it was around 4 years old. Backups still fail. I tried a new external disk and yes the same problem. The backups start OK but around half way through a 400GB backup data transfer slows and eventually throws up the error message. No issues under High Sierra.

Same thing. With my MPB 2018 and an external HD, and with my iMac 2017 with its own HD. Few days after the upgrading from High Sierra to Mojave, and even an entire, clean, reinstall of macOS Mojave. Apple, correct this ASAP.

I called Apple support and spoke with a Senior Technician and informed them about your /shared/adi discovery. They took note and said it made sense in context. They will be looking into it and they are having me run a backup while logging the necessary data from me to send to them.

Hopefully they will be able to confirm if this is in fact the issue or not and be able to push a supplemental update to fix this soon

yes it stopped

It displayed increasingly up to 96.. out of 104... (cant remember was it GB or was it MB?) then said it was finished. It has run ok a few times now. On high Sierra until a few days ago. It must have backedup the new system ok which is big.

I got patchy response when I clicked on the RH date line but that's another problem I guess. Still exploring that one.

Same issue here too. It says it fails all day long every time. But I can clearly restore files by going into time machine. So it's backing up something, but gets this fail state.

I deleted all .plist files from preference, formatted the drive. Bought new drives, same error. Wish I hadn't bought new drives, because it seems nothing is wrong with them. It's a software issue.

I ended up registering my copy of SuperDuper today, so that I could do incremental backups as well. Works great. Beforehand, I tried one more TM backup with all USB hardware disconnected except the keyboard and external drive, but that didn't work either, so I've moved on. As mentioned in another thread, I'm really liking everything else about Mojave, so TM bugs certainly aren't a deal breaker for me. I even hooked up my old iPod 5G Video, and Mojave iTunes found it and updated it just fine. I also backup my iPhone 6 via iTunes Wi-Fi, and it also works fine. With previous MacOS's, iTunes Wi-Fi would drop out occasionally, and not see the iPhone until I'd reset everything. It seems more stable to me now.

I forwarded this thread to the technician I was speaking to. I asked him to take a look and also to forward it to the relevant people so this can actually get looked at so it can move on from just being an echo chamber of people with a real issue that Apple has yet to address.