MP 1,1-5,1 os x installation on an external hdd

[Krisz]

Hi all !


The following problem occurred.
I want to install Os x Mojave on an external hdd but for some reason it is not possible.
The installation will start then the machine will restart and the installation will not continue! Moreover, the open core doesn't even see the external hdd (WD Elements 2 TB)
I tried it on a macbook pro and it installed there without any problems, then I plugged the external hdd into my mac pro and the open core doesn't see it.
Please who can help
Thanks

 

[MarkC426]

It will run very poorly on an external HDD with a cMP.
If you really want to do it, you could install it to an internal drive, then clone to the external.

 

[Krisz]

Thanks, but no other solution? Works without an open core but I need O.C because of the boot screen and Big Sur