Netinstall ISO has two partitions sdb1 and sdb2. sdb 8:16 1 14.4G 0 disk ├─sdb1 8:17 1 31M 0 part └─sdb2 8:18 1 6M 0 part /media/user/Firmware
I don't think macs can boot DOS partitions without a boot manager such as rEFInd.
Netinstall ISO has two partitions sdb1 and sdb2. sdb 8:16 1 14.4G 0 disk ├─sdb1 8:17 1 31M 0 part └─sdb2 8:18 1 6M 0 part /media/user/Firmware
I don't think macs can boot DOS partitions without a boot manager such as rEFInd.