[Samba] macOS monterey unable to back up to Samba 4.14.12
f.fainelli at gmail.com
Tue Aug 9 03:21:10 UTC 2022
I have been trying different configurations to get one of my macOS
Monterey machine to back up to a samba4 installation on a Raspberry Pi
4B using OpenWrt. Since this is an OpenWrt installation the package is
heavily stripped to its minimum so here is the list of vfs modules being
cap.so commit.so default_quota.so fake_perms.so
fruit.so offline.so recycle.so shell_snap.so
catia.so crossrename.so dirsort.so fileid.so
io_uring.so readonly.so shadow_copy2.so streams_xattr.so
The error reported by the Mac client is that a sparsebundle file gets
created but ultimately the backup preparation does not go through and
shows "The backup disk image could not be created".
During the short time where the .sparsebundle folder is created and
visible (it gets deleted upon failure), the permissions all look similar
to those of the other working backup.
The Mac does complain about not being able to read a number of files
under the .sparsebundle folder that I can create just fine using Finder
or the OpenWrt device itself, so it sounds like as if the files were
attempted to be created with attributes that are unsupported and we
failed to read them back.
The same samba 4 installation works great on older Macs though.
Underlying filesystem is ext4.
My relevant smb.conf section for that share is below:
path = /mnt/backup/TimeMachine
create mask = 0666
directory mask = 0777
read only = no
guest ok = yes
guest only = yes
fruit:encoding = native
fruit:metadata = stream
fruit:veto_appledouble = no
fruit:nfs_aces = no
fruit:posix_rename = yes
fruit:wipe_intentionally_left_blank_rfork = yes
inherit permissions = yes
fruit:time machine = yes
vfs objects = catia fruit streams_xattr io_uring
Thanks for reading me!
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