From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id C64701FF140 for ; Fri, 13 Mar 2026 14:12:47 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 1BA4528CB; Fri, 13 Mar 2026 14:12:45 +0100 (CET) From: Daniel Herzig To: pve-devel@lists.proxmox.com Subject: [RFC PATCH qemu-server 0/4] allow VMs to start with missing CD-ROM Date: Fri, 13 Mar 2026 14:12:02 +0100 Message-ID: <20260313131206.277195-1-d.herzig@proxmox.com> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -1.517 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment KAM_LAZY_DOMAIN_SECURITY 1 Sending domain does not have any anti-forgery methods RCVD_IN_VALIDITY_CERTIFIED_BLOCKED 0.408 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_RPBL_BLOCKED 0.819 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RCVD_IN_VALIDITY_SAFE_BLOCKED 0.903 ADMINISTRATOR NOTICE: The query to Validity was blocked. See https://knowledge.validity.com/hc/en-us/articles/20961730681243 for more information. RDNS_NONE 0.793 Delivered to internal network by a host with no rDNS SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_NONE 0.001 SPF: sender does not publish an SPF Record Message-ID-Hash: ADS7WYWJHZOVRTWOHP45OCKRARG7HWBU X-Message-ID-Hash: ADS7WYWJHZOVRTWOHP45OCKRARG7HWBU X-MailFrom: dherzig@emma.proxmox.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list List-Id: Proxmox VE development discussion List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 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/20250130113121.157273-1-d.herzig@proxmox.com/ *** 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