On 01/04/2025 18.22, Ryan Carsten Schmidt wrote: > On Apr 1, 2025, at 10:50, Bjarne D Mathiesen wrote: >> >> !!DON'T!! use APFS for this, but traditional HFS+ GUID-partitioning. > > Why? APFS has been working for me.
There're differences in how APFS works when installing macOS, that can make it impossible to eg "nuke" a newer macOS from an older macOS. The big difference happened between 10.15 Catalina and 11 BigSur. And if you need to go back to eg High Sierra, it can't read the newer APFS versions w/ a macOS installed. Keeping the macOS versions more "physically" separate instead of only "logically" separate has - in my experience - been an advantage. It costs HD space, but is -IMHO- much more safe. I've got an admin user on each macOS install; my "private" user profile is kept on the user partition and thus safe from any mishaps when messing around w/ the different versions of macOS. !!!BUT!!! make a backup of your private user profile before messing around - just to be safe ;-) -- Bjarne D Mathiesen Slagelse ; Danmark ; Europa ----------------------------------------------------------------------- denne besked er skrevet i et totalt M$-frit miljø MacPro 2010 5.1 ; OpenCore + macOS 14.7.4 Sonoma 2 x 3,46 GHz 6-Core Intel Xeon ; 192 GB 1333 MHz DDR3 ECC RDIMM ATI Radeon RX 590 8 GB
