Home > Questions

First Aid: The volume could not be verified completely

I have an MBP 15" 2017, which has glitchy performance and occasional freezes. When I ran First Aid on Macintosh HD - Data, the operating was successful but I found several error messages that haven't been resolved. Here are some examples. warning: snapshot fsroot/file key rolling tree corruptions are not repaired; they'll go away once the snapshot is deleted error: Unable to perform deferred repairs without full space verification. The volume /dev/rdisk1s1 could not be verified completely. P.S. My Time Machine isn't working as well.

Best Answered by

iBoysoft author Jenny Zeng

Jenny Zeng

Answered on Thursday, July 13, 2023

From the error messages, I notice that some snapshots are corrupted and need to be deleted. Besides, your Time Machine isn't working. If I were you, I'll try to reset the Time Machine backup disk and delete all local snapshots.

To reconfigure Time Machine, you need to erase the Time Machine backup disk after removing it from the backup disk list. Here're the steps to do it on macOS Ventura. (Other macOS versions may have slightly different steps.) Note that erasing the disk will remove all its data.

  1. Go to System Settings > General > Time Machine.
  2. Select your Time Machine backup disk and click the  ( - ) button.
  3. Click Forget Destination.
  4. Open Disk Utility.
  5. Click View > Show All Devices.
  6. Select the physical disk of the backup disk and click Erase.
  7. Choose APFS for macOS Big Sur or later and Mac OS Extended (Journaled) for macOS Catalina and earlier.
  8. Click Erase.

Next, you need to delete the local snapshots by running the following command in Terminal.

for d in $(tmutil listlocalsnapshotdates | grep "-"); do sudo tmutil deletelocalsnapshots $d; done

After that, you can set up Time Machine again to see if it works properly.

It's also recommended to check your internal hard drive is macOS Recovery.

People Also Ask

Read More Questions

Read More Advice From iBoysoft's Computer Experts

Résoudre l'erreur Impossible de modifier la table de partition sur Mac

Résoudre le problème 'Impossible de modifier la table des partitions' sur Mac (69874 & 69803)

Impossible d'effacer, partitionner ou réparer votre disque en raison de l'erreur 'Impossible de modifier la table des partitions' sur Mac ? Cet article vous aidera à résoudre le problème et à récupérer les données perdues.

fixing damaged partition map

How to Fix Damaged/Corrupted Partition Map Error in Disk Utility

What should do when getting the error message: Fixing damaged/corrupted partition map. The operation couldn't be complete in Disk Utility? The best way is to recover lost data after partition map dama

Mac Data Recovery Tips

Consertar USB não legível no Mac

Como corrigir unidades flash USB ilegíveis no Mac sem perda de dados

USB não legível no Mac? Aprenda a formatar, recuperar e corrigir unidades flash USB ilegíveis quando elas são unidades USB não legíveis ou não inicializadas no Mac com ferramenta de reparo USB gratuita para Mac.

recuperacion de datos mac