On Wed, Jul 01, 2020 at 12:01:08PM +0200, Vitaly Zaitsev via devel wrote: > On 01.07.2020 11:28, Alexey A. wrote: > > Stop using the L-word, please: BIOS is not "legacy", it's just > > alternative way (one of many). > > Using BIOS boot on UEFI-compatible systems is a legacy, because it works > under the CSM compatibly layer. > > More information about CSM you can find here: > https://www.rodsbooks.com/efi-bootloaders/csm-good-bad-ugly.html
NB, with the OVMF UEFI firmware for KVM, there is *NO* CSM layer provided. IOW, If KVM is configured for UEFI, the guest OS must use UEFI boot; if KVM is configured for legacy BIOS, the guest OS must use legacy BIOS. Just something to be aware of if you're testing OS using KVM - it won't replicate behaviour of bare metal UEFI setups with CSM. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
