[pve-devel] [PATCH qemu-server v4 1/2] cd rom handling: return a clearer error when there is no cd rom drive
Stefan Sterz
s.sterz at proxmox.com
Tue Dec 20 11:30:36 CET 2022
when a vm is configured to use a physical cd rom drive but there is no
such drive a cryptic "uninitialized value" error is thrown. this is
due to `$path` being undefined in `sub print_drive_commandline_full`.
warn that no cd rom drive is available instead.
note that the error was cosmetic as the vm would start just fine.
forum thread: https://forum.proxmox.com/threads/119592/
Signed-off-by: Stefan Sterz <s.sterz at proxmox.com>
---
changes from v3 (thanks @ Thomas Lamprecht):
* use `log_warn` instead of `warn`
* dont return results of assignments
changes from v2 (thanks @ Fiona Ebner):
* added newline to message
* cache the fact that no drive is available so we warn only once
* adjusted error message again
changes from v1:
* make the error message more concise.
* use shorter forum link for better formatting in commit message
(thanks @ Fiona Ebner).
PVE/QemuServer.pm | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/PVE/QemuServer.pm b/PVE/QemuServer.pm
index 39fc6b0..3837bd9 100644
--- a/PVE/QemuServer.pm
+++ b/PVE/QemuServer.pm
@@ -1287,11 +1287,16 @@ sub option_exists {
my $cdrom_path;
sub get_cdrom_path {
- return $cdrom_path if $cdrom_path;
+ return $cdrom_path if defined($cdrom_path);
return $cdrom_path = "/dev/cdrom" if -l "/dev/cdrom";
return $cdrom_path = "/dev/cdrom1" if -l "/dev/cdrom1";
return $cdrom_path = "/dev/cdrom2" if -l "/dev/cdrom2";
+
+ log_warn("no physical CD-ROM available, ignoring");
+ $cdrom_path = '';
+
+ return $cdrom_path;
}
sub get_iso_path {
--
2.30.2
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