BIOS drive 80 is chosen if at all possible (don't know EFI way yet)
Failing that, first virtio block device
Failing that, then first block device served by ata_piix4, ahci, megaraid_sas, pmcraid
Failing that, first mptsas or mpt2sas
Failing that, first block device
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@12360 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
Note this is of little use in a PXE environment today, as MITM to the initrd or ipxe subverts all of this.
This however is interesting for secure boot environments and remote media boot strap to provide an unbroken trust chain
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@12198 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
