Yet another possibility is to GPT partition the disk and then zero LBA 0 (the PMBR). Now to any MBR only utility, it will appear to be a blank drive and hence dangerously unprotected. But, being lazy I won't go look for this, I don't think the UEFI spec requires a PMBR on GPT disks, it can just have GPT only structures. But the PMBR is what all utilities use and will recreate if removed and the partition map is altered. So you're probably better off just using LVM if Linux only. If mixed platform, and you have to partition, then you have to change the BIOS boot order. Use the one time boot order change menu when you want to boot off an external, otherwise leave the first device as the internal drive. Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org