Currently VMs refuse to start if a configured CD-ROM is unavailable for a reason.
1) This is desirable if the CD-ROM is essential for the VM. 2) It can however can be inconvenient, if the CD-ROM was just used at for initial guest installation (and later on 'forgotten'). If the corresponding ISO e.g. resided on a network share, connectivity issues to the network share prohibit the VM to start. This RFC addresses case 2. It allows users to set a parameter 'dismissable' for a drive. If set, and if the drive is a CD-ROM, the CD-ROM will be removed from the VM configuration in the case of unavailability. As a consequence, the VM can start. The removal of the file from the configuration will be logged through log_warn() to have a backtrace of the process. The RFC addresses the backend-side of #4225 on bugzilla [0] and supersedes [1], integrating the valuable on- and offline input on the topic. [0] https://bugzilla.proxmox.com/show_bug.cgi?id=4225 [1] https://lore.proxmox.com/pve-devel/[email protected]/ *** BLURB HERE *** qemu-server: Daniel Herzig (4): drive: Introduce parameter to mark CD-ROM as dissmissable drive: ignore 'dismissable' parameter for everything but CD-ROMs introduce sub 'activate_current_vm_volumes' integrate new sub 'activate_current_vm_volumes' src/PVE/QemuServer.pm | 75 ++++++++++++++++++++++++++++++++----- src/PVE/QemuServer/Drive.pm | 10 +++++ 2 files changed, 75 insertions(+), 10 deletions(-) -- 2.47.3
