[Samba] Time machine backups: fruit_tmsize_do_dirent()

Johan Hattne johan at hattne.se
Tue Feb 11 19:23:06 UTC 2020

On 2020-01-31 12:30, Johan Hattne wrote:
> Dear all;
> On the recent topic of Time Machine backups: when backing up a machine 
> running macOS Mojave to a Samba server on Debian Buster with 
> buster-samba410 packages from https://apt.van-belle.nl/debian, we see 
> our logs filling up with messages like
> ../../source3/modules/vfs_fruit.c:7001(fruit_tmsize_do_dirent)
> fruit_tmsize_do_dirent: Processing sparsebundle 
> [host.purgeable.sparsebundle] failed
> Does anybody know what is causing this (I haven't read the sources quite 
> yet)?

In case anyone else as clueless as I am runs into this: this isn't 
really a Samba issue.

Samba's fruit_get_num_bands() failed, but the "purgeable" in the bundle 
name indicates that this is a backup deemed broken by Apple's Time 
Machine (see e.g. https://www.baligu.com/pondini/TM/C13.html).  So it 
seems Time Machine won't do anything with it and I shouldn't expect 
Samba to repair it for me either.

// Best wishes; Johan

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