There's no such thing as a virtio-blk CD-ROM, only hard-disks. For
installation it shouldn't matter, since .iso images usually can work
also as hard-disk images (for putting them on a USB stick).
If you want to test installation from a "real" virtio CD-ROM, use
virtio-scsi:
-drive file=/path/to/file.iso,if=none,id=cd -device virtio-scsi-pci
-device scsi-cd,drive=cd
or
-drive file=/path/to/file.iso,if=none,media=cdrom,id=cd -device virtio-
scsi-pci -device scsi-disk,drive=cd
** Changed in: qemu
Status: New => Invalid
** Changed in: qemu (Ubuntu)
Status: Confirmed => Invalid
--
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https://bugs.launchpad.net/bugs/1155403
Title:
virtio cdrom detected as hard disk
Status in QEMU:
Invalid
Status in “qemu” package in Ubuntu:
Invalid
Bug description:
Trying to install Ubuntu or Debian using virtio to emulate the cdrom
fails. This appears to be due to the drive appearing to be a hard
disk, rather than a cdrom, despite the media=cdrom argument to qemu.
I'm not sure if this is a bug in qemu, or the kernel virtio driver?
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