MP 1,1-5,1 Separate Partition For El Capitan

[retrovox]

Hi all,

I'm currently using macOS Monterey installed on a NVMe SSD. I tried creating a separate partition (formatted to Mac OS Extended Journaled) in order to install macOS El Capitan. After booting up via El Capitan USB installer, the separate partition is not visible. Only the USB installer is visible for me to install El Capitan. How is it possible that the El Capitan USB installer is not able to detect the partition that has been formatted to Mac OS Extended Journaled?

Any advice is greatly appreciated.

 

[tsialex]

Hi all,

I'm currently using macOS Monterey installed on a NVMe SSD. I tried creating a separate partition (formatted to Mac OS Extended Journaled) in order to install macOS El Capitan. After booting up via El Capitan USB installer, the separate partition is not visible. Only the USB installer is visible for me to install El Capitan. How is it possible that the El Capitan USB installer is not able to detect the partition that has been formatted to Mac OS Extended Journaled?

Any advice is greatly appreciated.

Apple started supporting NVMe first with its own NVMe blades with Yosemite 10.10.3 and continued exclusively to do so until Sierra.

macOS only have support for generic (as in non made by Apple NVMe) blades/drives AFTER Sierra (4KB/sector) or High Sierra (both 4KB/sector and 512B/sector blades/drives).

You can't install El Capitan to a non Apple NVMe blade, only to a genuine Apple NVMe blade.