Ventura docs for M2 Macs in this comment: https://gist.github.com/henrik242/65d26a7deca30bdb9828e183809690bd?permalink_comment_id=4555340#gistcomment-4555340
Old Monterey docs in this old revision: https://gist.github.com/henrik242/65d26a7deca30bdb9828e183809690bd/32c410e3a1de73539c76fa13ea5486569c4e0c5d
Solution for Sonoma: https://gist.github.com/sghiassy/a3927405cf4ffe81242f4ecb01c382ac
@Vicki-Olesen @mabearce1 updates are working fine, you can login with an Apple ID, access appstore to get, install or update any software, including system updates.
Alternatively, in case you don't want to login, you can always update macOS, and any installed software on your External USB, however you will need to repeat the process above on both devices, as suggested by @maclover696
If you are interested to learn how DEP/MDM works, and what happens to a device without DEP (run
profiles status -type enrollment
to confirm), these are good links:Apple Guide
Device with DEP
Using DEP
Things to remember your device hits different Apple servers:
profiles status -type enrollment
(MDM servers)