Sparsebundle - No mountable file systems

Haha! Thanks.

I'm going to start with the short one that seems easier then the others:

• Right-click on the disk image, change "Everyone" to read and write.
• Open terminal
• chmod -R 777 {disk image path}

It was apparently a permissions issue.

Very basic question

Would I be entering the command like this?

chmod -R 777 {/Volumes/D6_/D6.sparsebundle}

or chmod -R 777 /Volumes/D6_/D6.sparsebundle

I think the above changed permissions but the error is still there and the disk does not open. I'll try this one.

How would one apply the script below with this file path ? /Volumes/D6_/D6.sparsebundle

I just realised that the size of the sparsebundle is very close to the capacity of the drive. 7.79 in an 8TB drive oops :S

# chflags -R nouchg MyImage.sparsebundle

# hdiutil attach -nomount -noverify -readwrite -noautofsck MyImage.sparsebundle
Enter the password to access „MyImage.sparsebundle“: 
/dev/disk2              GUID_partition_scheme           
/dev/disk2s1            EFI                             
/dev/disk2s2            Apple_HFS                       

# hdiutil resize -size 1.5t MyImage.sparsebundle
Enter the password to access „MyImage.sparsebundle“: 

# fsck_hfs -drf /dev/disk2s2
** Checking Journaled HFS Plus volume.
** Detected a case-sensitive volume.
   The volume name is Time Machine-Backups
** Checking extents overflow file.
** Checking catalog file.
** Rebuilding catalog B-tree.
…

# hdiutil detach /dev/disk2s2

Thank you! Many answers some very technical. I forgot to mention that this is an image I created it in the disk Utility as an encrypted sparse bundle rather then a time machine backup. Do the answers in that link still relate to me?

I see what you mean. BTW the file was made as an APFS-formatted sparse disk image.

I just found this:

I repaid the sparse disk image in disk utility. the message no longer comes up but the sparsebudle doesn't open.

https://www.macrumors.com/2018/02/19/apfs-bug-macos-data-loss-disk-images/

Fantastic! I hope you don’t mind me asking: If you were in my situation, what would you try first? Sorry I’m not technical and normally better at distroying things rather then fixing them.

Thanks a lot. I'll give that a go. I don't think the size changed to 7.78TBs due to corruption. It's more likely that I added too many files into that folder.