* [PATCH qemu-server] fix #5578: smbios: set serial number
@ 2026-02-18 14:29 Manuel Federanko
2026-02-18 16:24 ` Stoiko Ivanov
0 siblings, 1 reply; 4+ messages in thread
From: Manuel Federanko @ 2026-02-18 14:29 UTC (permalink / raw)
To: pve-devel
If no smbios options are given on creation, default to generate a serial
number. This is required for Windows Autopilot to identify a user
device.
Signed-off-by: Manuel Federanko <m.federanko@proxmox.com>
---
src/PVE/API2/Qemu.pm | 5 ++++-
src/PVE/CLI/qm.pm | 5 ++++-
src/PVE/QemuServer.pm | 6 ++++++
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/src/PVE/API2/Qemu.pm b/src/PVE/API2/Qemu.pm
index c2e185a6..8d1e3ec0 100644
--- a/src/PVE/API2/Qemu.pm
+++ b/src/PVE/API2/Qemu.pm
@@ -1471,7 +1471,10 @@ __PACKAGE__->register_method({
# auto generate uuid if user did not specify smbios1 option
if (!$conf->{smbios1}) {
- $conf->{smbios1} = PVE::QemuServer::generate_smbios1_uuid();
+ $conf->{smbios1} =
+ PVE::QemuServer::generate_smbios1_uuid() . ","
+ . PVE::QemuServer::generate_smbios1_serial()
+ . ",base64=1";
}
if (
diff --git a/src/PVE/CLI/qm.pm b/src/PVE/CLI/qm.pm
index bdae9641..44c74eed 100755
--- a/src/PVE/CLI/qm.pm
+++ b/src/PVE/CLI/qm.pm
@@ -912,7 +912,10 @@ __PACKAGE__->register_method({
eval {
# order matters, as do_import() will load_config() internally
$conf->{vmgenid} = PVE::QemuServer::generate_uuid();
- $conf->{smbios1} = PVE::QemuServer::generate_smbios1_uuid();
+ $conf->{smbios1} =
+ PVE::QemuServer::generate_smbios1_uuid() . ","
+ . PVE::QemuServer::generate_smbios1_serial()
+ . ",base64=1";
PVE::QemuConfig->write_config($vmid, $conf);
foreach my $disk (@{ $parsed->{disks} }) {
diff --git a/src/PVE/QemuServer.pm b/src/PVE/QemuServer.pm
index 545758dc..a8cc7d85 100644
--- a/src/PVE/QemuServer.pm
+++ b/src/PVE/QemuServer.pm
@@ -8086,6 +8086,12 @@ sub generate_smbios1_uuid {
return "uuid=" . generate_uuid();
}
+sub generate_smbios1_serial {
+ my @population = ('0' .. '9', 'A' .. 'Z', 'a' .. 'z');
+ my $serial = join('', map($population[rand(@population)], 1 .. 12));
+ return "serial=" . encode_base64($serial, "");
+}
+
sub create_reboot_request {
my ($vmid) = @_;
open(my $fh, '>', "/run/qemu-server/$vmid.reboot")
--
2.47.3
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH qemu-server] fix #5578: smbios: set serial number
2026-02-18 14:29 [PATCH qemu-server] fix #5578: smbios: set serial number Manuel Federanko
@ 2026-02-18 16:24 ` Stoiko Ivanov
2026-02-18 16:33 ` Stoiko Ivanov
0 siblings, 1 reply; 4+ messages in thread
From: Stoiko Ivanov @ 2026-02-18 16:24 UTC (permalink / raw)
To: Manuel Federanko; +Cc: pve-devel
Thanks for tackling this!
comments/questions inline:
On Wed, 18 Feb 2026 15:29:35 +0100
Manuel Federanko <m.federanko@proxmox.com> wrote:
> If no smbios options are given on creation, default to generate a serial
> number. This is required for Windows Autopilot to identify a user
> device.
The commit message could include a few more details - explaining some
choices - e.g. - the bugzilla request suggest to use a (substring of) the
smbios UUID (which should be unique and thus maybe a ok choice for a
machine-serial number) as serial number - why did you chose to generate
another random string? (if possible re-using parts of the uuid would sound
elegant to me)
>
> Signed-off-by: Manuel Federanko <m.federanko@proxmox.com>
> ---
> src/PVE/API2/Qemu.pm | 5 ++++-
> src/PVE/CLI/qm.pm | 5 ++++-
> src/PVE/QemuServer.pm | 6 ++++++
> 3 files changed, 14 insertions(+), 2 deletions(-)
>
> diff --git a/src/PVE/API2/Qemu.pm b/src/PVE/API2/Qemu.pm
> index c2e185a6..8d1e3ec0 100644
> --- a/src/PVE/API2/Qemu.pm
> +++ b/src/PVE/API2/Qemu.pm
> @@ -1471,7 +1471,10 @@ __PACKAGE__->register_method({
>
> # auto generate uuid if user did not specify smbios1 option
> if (!$conf->{smbios1}) {
> - $conf->{smbios1} = PVE::QemuServer::generate_smbios1_uuid();
> + $conf->{smbios1} =
> + PVE::QemuServer::generate_smbios1_uuid() . ","
> + . PVE::QemuServer::generate_smbios1_serial()
> + . ",base64=1";
why add the base64 here - the commit introducing it mentions embedded
nul-bytes:
> }
>
> if (
> diff --git a/src/PVE/CLI/qm.pm b/src/PVE/CLI/qm.pm
> index bdae9641..44c74eed 100755
> --- a/src/PVE/CLI/qm.pm
> +++ b/src/PVE/CLI/qm.pm
> @@ -912,7 +912,10 @@ __PACKAGE__->register_method({
> eval {
> # order matters, as do_import() will load_config() internally
> $conf->{vmgenid} = PVE::QemuServer::generate_uuid();
> - $conf->{smbios1} = PVE::QemuServer::generate_smbios1_uuid();
> + $conf->{smbios1} =
> + PVE::QemuServer::generate_smbios1_uuid() . ","
> + . PVE::QemuServer::generate_smbios1_serial()
> + . ",base64=1";
> PVE::QemuConfig->write_config($vmid, $conf);
>
> foreach my $disk (@{ $parsed->{disks} }) {
> diff --git a/src/PVE/QemuServer.pm b/src/PVE/QemuServer.pm
> index 545758dc..a8cc7d85 100644
> --- a/src/PVE/QemuServer.pm
> +++ b/src/PVE/QemuServer.pm
> @@ -8086,6 +8086,12 @@ sub generate_smbios1_uuid {
> return "uuid=" . generate_uuid();
> }
>
> +sub generate_smbios1_serial {
> + my @population = ('0' .. '9', 'A' .. 'Z', 'a' .. 'z');
> + my $serial = join('', map($population[rand(@population)], 1 .. 12));
> + return "serial=" . encode_base64($serial, "");
> +}
> +
> sub create_reboot_request {
> my ($vmid) = @_;
> open(my $fh, '>', "/run/qemu-server/$vmid.reboot")
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH qemu-server] fix #5578: smbios: set serial number
2026-02-18 16:24 ` Stoiko Ivanov
@ 2026-02-18 16:33 ` Stoiko Ivanov
2026-02-19 11:32 ` superseded: " Manuel Federanko
0 siblings, 1 reply; 4+ messages in thread
From: Stoiko Ivanov @ 2026-02-18 16:33 UTC (permalink / raw)
To: Manuel Federanko; +Cc: pve-devel
sorry - sent too soon.
further comments inline:
On Wed, 18 Feb 2026 17:24:14 +0100
Stoiko Ivanov <s.ivanov@proxmox.com> wrote:
> Thanks for tackling this!
>
> comments/questions inline:
>
> On Wed, 18 Feb 2026 15:29:35 +0100
> Manuel Federanko <m.federanko@proxmox.com> wrote:
>
> > If no smbios options are given on creation, default to generate a serial
> > number. This is required for Windows Autopilot to identify a user
> > device.
> The commit message could include a few more details - explaining some
> choices - e.g. - the bugzilla request suggest to use a (substring of) the
> smbios UUID (which should be unique and thus maybe a ok choice for a
> machine-serial number) as serial number - why did you chose to generate
> another random string? (if possible re-using parts of the uuid would sound
> elegant to me)
also - how did you test this? - adding such information can go a long way
to reproducing your results.
>
>
> >
> > Signed-off-by: Manuel Federanko <m.federanko@proxmox.com>
> > ---
> > src/PVE/API2/Qemu.pm | 5 ++++-
> > src/PVE/CLI/qm.pm | 5 ++++-
> > src/PVE/QemuServer.pm | 6 ++++++
> > 3 files changed, 14 insertions(+), 2 deletions(-)
> >
> > diff --git a/src/PVE/API2/Qemu.pm b/src/PVE/API2/Qemu.pm
> > index c2e185a6..8d1e3ec0 100644
> > --- a/src/PVE/API2/Qemu.pm
> > +++ b/src/PVE/API2/Qemu.pm
> > @@ -1471,7 +1471,10 @@ __PACKAGE__->register_method({
> >
> > # auto generate uuid if user did not specify smbios1 option
> > if (!$conf->{smbios1}) {
> > - $conf->{smbios1} = PVE::QemuServer::generate_smbios1_uuid();
> > + $conf->{smbios1} =
> > + PVE::QemuServer::generate_smbios1_uuid() . ","
> > + . PVE::QemuServer::generate_smbios1_serial()
> > + . ",base64=1";
why add the base64 here - the commit introducing it mentions embedded
nul-bytes:
https://git.proxmox.com/?p=qemu-server.git;a=commitdiff;h=1f30ac3a9f18c215d3e3c657f9e81d9d3125f46c
I guess from a quick look that you need to change that part to add the
uuid and the serial as separate keys to smbios1 (smbios1 is a
property_string (a not deeply nested has stored as a string in our config
file) - see
https://git.proxmox.com/?p=pve-common.git;a=blob;f=src/PVE/JSONSchema.pm;h=17e7126a6c42f8326a1da890680af10b6106d906;hb=HEAD#l1041
>
> > }
> >
> > if (
> > diff --git a/src/PVE/CLI/qm.pm b/src/PVE/CLI/qm.pm
> > index bdae9641..44c74eed 100755
> > --- a/src/PVE/CLI/qm.pm
> > +++ b/src/PVE/CLI/qm.pm
> > @@ -912,7 +912,10 @@ __PACKAGE__->register_method({
> > eval {
> > # order matters, as do_import() will load_config() internally
> > $conf->{vmgenid} = PVE::QemuServer::generate_uuid();
> > - $conf->{smbios1} = PVE::QemuServer::generate_smbios1_uuid();
> > + $conf->{smbios1} =
> > + PVE::QemuServer::generate_smbios1_uuid() . ","
> > + . PVE::QemuServer::generate_smbios1_serial()
> > + . ",base64=1";
> > PVE::QemuConfig->write_config($vmid, $conf);
> >
> > foreach my $disk (@{ $parsed->{disks} }) {
> > diff --git a/src/PVE/QemuServer.pm b/src/PVE/QemuServer.pm
> > index 545758dc..a8cc7d85 100644
> > --- a/src/PVE/QemuServer.pm
> > +++ b/src/PVE/QemuServer.pm
> > @@ -8086,6 +8086,12 @@ sub generate_smbios1_uuid {
> > return "uuid=" . generate_uuid();
> > }
> >
> > +sub generate_smbios1_serial {
> > + my @population = ('0' .. '9', 'A' .. 'Z', 'a' .. 'z');
> > + my $serial = join('', map($population[rand(@population)], 1 .. 12));
> > + return "serial=" . encode_base64($serial, "");
> > +}
> > +
> > sub create_reboot_request {
> > my ($vmid) = @_;
> > open(my $fh, '>', "/run/qemu-server/$vmid.reboot")
>
>
>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* superseded: [PATCH qemu-server] fix #5578: smbios: set serial number
2026-02-18 16:33 ` Stoiko Ivanov
@ 2026-02-19 11:32 ` Manuel Federanko
0 siblings, 0 replies; 4+ messages in thread
From: Manuel Federanko @ 2026-02-19 11:32 UTC (permalink / raw)
To: pve-devel
Changed serial to be a uuidv1.
Superseded-by: https://lore.proxmox.com/pve-devel/20260219111945.61300-1-m.federanko@proxmox.com/T/#u
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-02-19 11:31 UTC | newest]
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2026-02-18 14:29 [PATCH qemu-server] fix #5578: smbios: set serial number Manuel Federanko
2026-02-18 16:24 ` Stoiko Ivanov
2026-02-18 16:33 ` Stoiko Ivanov
2026-02-19 11:32 ` superseded: " Manuel Federanko
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