From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [IPv6:2a01:7e0:0:424::9]) by lore.proxmox.com (Postfix) with ESMTPS id DE36A1FF13F for ; Thu, 18 Jun 2026 14:51:38 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 14C821858F; Thu, 18 Jun 2026 14:51:37 +0200 (CEST) From: Maximiliano Sandoval To: pve-devel@lists.proxmox.com Subject: [PATCH qemu-server] disk clone: warn when fallback is used instead of requested format Date: Thu, 18 Jun 2026 14:50:56 +0200 Message-ID: <20260618125103.1784856-1-m.sandoval@proxmox.com> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1781787004392 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.126 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 SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Message-ID-Hash: LI7KMDKPSH73CU7D2C5ME6X4OKIR6NJM X-Message-ID-Hash: LI7KMDKPSH73CU7D2C5ME6X4OKIR6NJM X-MailFrom: m.sandoval@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: We already print the same warning when importing. See f6039cedf for more details. Suggested-by: Shannon Sterz Signed-off-by: Maximiliano Sandoval --- Tested: On a LVM storage with savc enabled: $ qm disk move 100 scsi0 $storage --format vmdk which prints: format 'vmdk' is not supported by the target storage - using 'qcow2' instead src/PVE/QemuServer.pm | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/PVE/QemuServer.pm b/src/PVE/QemuServer.pm index 55e9f520..80d91a77 100644 --- a/src/PVE/QemuServer.pm +++ b/src/PVE/QemuServer.pm @@ -7936,6 +7936,8 @@ sub clone_disk { my $storeid = $storage || $src_storeid; my $dst_format = resolve_dst_disk_format($storecfg, $storeid, $drive->{file}, $format); + warn "format '$format' is not supported by the target storage - using '$dst_format' instead\n" + if $format && $format ne $dst_format; my $name = undef; my $size = undef; -- 2.47.3