macOS Time Machine backups to SmartOS SMB

config.sh

#!/bin/bash
# I generally run this one command at a time, script format is for syntax highlights
# Tested personally with macOS Big Sur on Intel mac, use at your own risk, zero warranty
# Requires delegate dataset, refer to tm.json zone config. Uses base-64-lts, 21.4.0
# 
# References:
#   Respect to Brian Bennett @ Joyent
#   https://datasets.at - zone generation
#   https://illumos.topicbox.com/groups/discuss/T97ac7717dd31b5b5-Mb58fec102ab950b3bbc54843 - smb support thread
#   https://wiki.smartos.org/configuring-smb-in-smartos/ - smb guide for SmartOS
export SMB_USER="yourUserName"
pkgin update
pkgin -y upgrade

pkgin -y install avahi

#edit /etc/pam.conf for pam_smb_passwd TODO convert to echo >>
# add the following, not that tabs, "\t", are required between the values:
# other password required       pam_smb_passwd.so.1     nowarn
vi /etc/pam.conf

svcadm enable smb/server
svcadm enable smb/client
svcadm enable rpc/bind
svcadm enable idmap

useradd ${SMB_USER}
passwd ${SMB_USER}


zfs create zones/$(zonename)/data/backup && zfs set mountpoint=/backup zones/$(zonename)/data/backup
chown ${SMB_USER}:other /backup
sharemgr add-share -r tm-backup -s /backup smb


cat <<-EOF > /opt/local/etc/avahi/services/smb.service
<?xml version="1.0" standalone='no'?>
<!DOCTYPE service-group SYSTEM "avahi-service.dtd">
<!--
BASH commands that mimic this config
dns-sd -R "hostname" _device-info._tcp. local 445 model=Xserve &
dns-sd -R "hostname" _smb._tcp. local. 445 &
dns-sd -R "hostname" _adisk._tcp local sys=waMa=0,adVF=0x100 &
dns-sd -R "hostname" _adisk._tcp local dk0=adVN=timemachine,adVF=0x82 &
-->
<service-group>
 <name replace-wildcards="yes">%h</name>
 <service>
   <type>_device-info._tcp</type>
   <port>445</port>
   <txt-record>model=Xserve</txt-record>
 </service>
 <service>
   <type>_adisk._tcp</type>
   <port>445</port>
   <txt-record>sys=waMa=0,adVF=0x100</txt-record>
   <txt-record>dk0=adVN=tm-backup,adVF=0x82</txt-record>
 </service>
  <service>
    <type>_smb._tcp</type>
    <port>445</port>
  </service>
</service-group>
EOF

svcadm enable -r svc:/pkgsrc/avahi

tm.json

{
  "brand": "joyent",
  "image_uuid": "c8715b60-7e98-11ec-82d1-03d16599f529",
  "autoboot": true,
  "alias": "timemachine",
  "hostname": "timemachine",
  "delegate_dataset": true,
  "resolvers": [
    ""
  ],
  "max_physical_memory": 512,
  "max_swap": 512,
  "quota": 2048,
  "nics": [
    {
      "nic_tag": "YOUR_NIC_TAG",
      "mac": "00:00:00:00:00:00",
      "ip": "dhcp"
    }
  ],
  "customer_metadata": {
    "root_authorized_keys": "YOUR SSH KEY"
  },
  "internal_metadata": {}
}