On 11/8/21 8:30 pm, Ard Biesheuvel wrote: > On Wed, 11 Aug 2021 at 11:55, Christoph Willing > <475.chris.will...@gmail.com> wrote: >> >> On 11/8/21 4:12 pm, Gerd Hoffmann wrote: >>> Hi, >>> >>>> I amended my script to have: >>>> >>>> -drive if=none,id=sd00,file=disk.img,format=raw \ >>>> -device virtio-scsi-pci,id=scsi \ >>>> -device scsi-hd,bus=scsi.0,drive=sd00 \ >>> >>> That switches storage from ide to virtio-scsi. >>> >>> Which is a good idea from the performance point of view. Will obviously >>> also workaround ide problems. But might fail now due to virtio-scsi >>> driver not being part of your initrd. >>> >> >> Thank you James & Gerd, >> >> Your suggestions & comments led me to reconsider the contents of the >> initrd and the problem is now fixed. >> >> I had been using an initrd that worked perfectly in a non-UEFI boot and >> half worked with UEFI boot (the working half being when code was >> patched). However when I generated a completely new initrd after >> installing a new system in UEFI mode, I could see many virtio modules >> being added which were not part of the old initrd I had been using. >> Booting with the new initrd works perfectly in all boot modes using >> OVMF files created without any code patching. >> >> Is there a particular procedure to withdraw my patch request, or does it >> die a quiet death by being ignored now? >> > > Glad to hear that the mystery is solved now. > > As for the patch, we will just disregard it - no need for any other > action on your part. >
Hi all, I just wanted to add some clarification about why the problem is fixed. It not really just about adding virtio* modules to the initrd. That was only needed because I changed the drive to use a virtio-scsi-pci device as James had suggested. While that all worked fine, probably with better performance (as Gerd mentioned) it was still unsatisfying that I couldn't make the plain ide work. It turns out that the ide interface can work without changes to the initrd but invocation requires separate -drive and -device options, somewhat like James' scsi version, namely: -device ahci,id=ahci \ -device ide-hd,drive=ide0,bus=ahci.0 \ -drive if=none,id=ide0,file=disk.img,format=raw,cache=none,index=0,media=disk \ instead of my original shortcut version: -drive file=disk.img,format=raw,cache=none,index=0,media=disk \ I'll probably stick with the better performing scsi version from now on although it's still interesting that the shortcut version works without UEFI but fails with UEFI. chris -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#79180): https://edk2.groups.io/g/devel/message/79180 Mute This Topic: https://groups.io/mt/84767423/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
