[pve-devel] [PATCH qemu-server v3 0/6] bugzilla #4225 -- improve handling of unavailable ISOs

[Fiona Ebner]

Am 30.01.25 um 12:31 schrieb Daniel Herzig:
> This patch series addresses bugzilla entry #4225.
> 
> Currently VMs refuse to to start if a configured isofile becomes unavailable,
> be it a deleted file or an unavailable network storage.
> 
> This patch series introduces a new parameter in Drive.pm, called 'essential'.
> Depending on whether this parameter is set or not, the situation will be handled
> differently.
> 
> If the parameter is set to 0, the configuration will temporarily changed to use
> 'none' as file for the cd drive, which allows qemu to start up the machine.
> The configuration is not changed in this process to avoid unexpected behaviour.
> Instead a log_warn will be issued.
> 
> For transition reasons an unset parameter acts like 'required=1'. In this case
> the startup process will die earlier than currently, if the file is missing or
> the underlying storage not available.

Since you use the word "transition", is there a plan to change the
default behavior at some point? IMHO that requires more rationale
(especially in the backend).

> 
> If a new VM is created from the WebGUI, a corresponding added checkbox
> is checked by default, but allows for convenient unchecking during setup time,
> eg for media that is only needed for installation time.
> 
> This patch series adds an 'Eject' button to the hardwareview in the WebGUI,
> which can be used as a convenience shortcut to setting file to 'none' for the
> cdrom drive.
> 
> This series supersedes:
> https://lore.proxmox.com/pve-devel/20250113085608.99498-1-d.herzig@proxmox.com/