@Aleksandr: ok but why all other enterprise distro's have a MBR? All other ISO's are producing bootable USB sticks but OpenStack-Mirantis ISO don't:
>gdisk rhel-server-7.0-x86_64-boot.iso GPT fdisk (gdisk) version 0.8.1
Partition table scan: MBR: MBR only BSD: not present APM: not present GPT: present
>gdisk ubuntu-14.04.1-server-amd64.iso GPT fdisk (gdisk) version 0.8.1
Partition table scan: MBR: MBR only BSD: not present APM: not present GPT: not present
>gdisk CentOS-7.0-1406-x86_64-livecd.iso GPT fdisk (gdisk) version 0.8.1
@Aleksandr: ok but why all other enterprise distro's have a MBR? All other ISO's are producing bootable USB sticks but OpenStack-Mirantis ISO don't:
>gdisk rhel-server- 7.0-x86_ 64-boot. iso
GPT fdisk (gdisk) version 0.8.1
Partition table scan:
MBR: MBR only
BSD: not present
APM: not present
GPT: present
>gdisk ubuntu- 14.04.1- server- amd64.iso
GPT fdisk (gdisk) version 0.8.1
Partition table scan:
MBR: MBR only
BSD: not present
APM: not present
GPT: not present
>gdisk CentOS- 7.0-1406- x86_64- livecd. iso
GPT fdisk (gdisk) version 0.8.1
Partition table scan:
MBR: MBR only
BSD: not present
APM: not present
GPT: not present