Hi!
Thanks for the replies.
I guess my next question is, how do I find out the correct TTY (or
whatever) to use to talk to the host, since /dev/tty00 doesn't work
for me. I'm using virtual hosting at a provider, so I don't know the
configuration from the outside.
I'll attach the dmesg in case it gives some clues.
Thomas
On Tue, Jul 15, 2025 at 01:08:19PM +0000, ci4ic4 wrote:
> Just to confirm, I tweaked /etc/rc.d/qemu-quest-agent to have only
>
> command_args="-c /usr/pkg/etc/qemu/qemu-ga.conf"
>
> and set the above file as:
>
> [general]
> daemon=true
> method=isa-serial
> path=/dev/tty00
> pidfile=/var/run/qemu-ga.pid
> logfile=/var/log/qemu-ga/qemu-ga.log
> statedir=/var/run
> verbose=true
> blacklist=
> allow-rpcs=guest-get-load,guest-ssh-remove-authorized-keys,guest-ssh-add-authorized-keys,guest-ssh-get-authorized-keys,guest-get-osinfo,guest-get-timezone,guest-get-users,guest-get-host-name,guest-exec,guest-exec-status,guest-network-get-interfaces,guest-file-flush,guest-file-seek,guest-file-write,guest-file-read,guest-file-close,guest-file-open,guest-shutdown,guest-info,guest-set-time,guest-get-time,guest-ping,guest-sync,guest-sync-delimited
>
> Now ProxMox does not complain that the guest agent is not running and the IP
> address of the client is correctly displayed.
>
> (I just enabled all the rpcs, maybe that is by default, never checked).
>
>
>
>
>
> Sent with Proton Mail secure email.
>
> On Tuesday, 15 July 2025 at 13:16, ci4ic4 <ci4...@proton.me> wrote:
>
> >
> >
> >
> >
> >
> > Sent with Proton Mail secure email.
> >
> >
> > On Tuesday, 15 July 2025 at 12:51, ci4ic4 ci4...@proton.me wrote:
> >
> > > Sent with Proton Mail secure email.
> > >
> > > On Tuesday, 15 July 2025 at 10:47, Thomas Klausner w...@netbsd.org wrote:
> > >
> > > > Hi!
> > > >
> > > > Is anyone using qemu-guest-agent?
> > >
> > > Yes,
> > >
> > > > I wanted to set it up in a virtual environment, but the defaults don't
> > > > work (i.e. without a config file):
> > > >
> > > > # /etc/rc.d/qemu-guest-agent start
> > > > Starting qemu_guest_agent.
> > > > 1752572488.279750: critical: error opening channel '/dev/tty00': Device
> > > > not configured
> > > > 1752572488.279898: critical: failed to create guest agent channel
> > > > 1752572488.279972: critical: failed to initialize guest agent channel
> > > > 1752572488.280036: critical: error initializing guest agent
> > > >
> > > > the package does not install an example config, nor could I find one
> > > > in the distribution tarball, and I don't know what I should use as a
> > > > config.
> > >
> > > There is no config file as far as I understand it - it is the command
> > > line parameters:
> > >
> > > ...
> > > command_args="-d -m isa-serial -p /dev/tty00 -r -t /var/run -f
> > > /var/run/${name}.pid"
> > > ...
> > >
> > > from /etc/rc.d/qemu-quest-agent, so I have:
> > > ...
> > > # ps axll | grep qemu-ga
> > > 0 556 1 0 85 0 26752 2032 poll Isl ? 0:00.00 /usr/pkg/bin/qemu-ga -d -m
> > > isa-serial -p /dev/tty00 -r -t /var/run -f /var/run/qemu_guest_agent.pid
> > > ...
> > >
> > > This VM runs under ProxMox and has a serial port added to the
> > > configuration - as a socket, which appears as the only option anyway, I
> > > have no idea how it is used. In the options setup the QEMU guest agent is
> > > enabled, usually as ISA - as it shows above - although it apparently runs
> > > the same if defined as VirtIO.
> > >
> > > The graphics device is defined as SPICE and using it this way is quite
> > > reasonable, with perfectly working sound and (llvmpipe) 3D acceleration.
> > > The only trouble I am having is that I can't get more than 1280x768, for
> > > some reason (it is using VESA).
> > >
> > > > Thanks,
> > > > Thomas
> > >
> > > FWIW, Chavdar
> >
> >
> > (for some reason, sent twice by the web client, no idea why).
> >
> > I mean, there is no configuration file in the package, of course.
NetBSD 10.1 (GENERIC) #0: Mon Dec 16 13:08:11 UTC 2024
mkre...@mkrepro.netbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC
total memory = 8190 MB
avail memory = 7896 MB
timecounter: Timecounters tick every 10.000 msec
Kernelized RAIDframe activated
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
mainbus0 (root)
ACPI: RSDP 0x00000000000F5280 000014 (v00 BOCHS )
ACPI: RSDT 0x00000000BFFE1BA0 000030 (v01 BOCHS BXPC 00000001 BXPC
00000001)
ACPI: FACP 0x00000000BFFE1A84 000074 (v01 BOCHS BXPC 00000001 BXPC
00000001)
ACPI: DSDT 0x00000000BFFE0040 001A44 (v01 BOCHS BXPC 00000001 BXPC
00000001)
ACPI: FACS 0x00000000BFFE0000 000040
ACPI: APIC 0x00000000BFFE1AF8 000080 (v03 BOCHS BXPC 00000001 BXPC
00000001)
ACPI: WAET 0x00000000BFFE1B78 000028 (v01 BOCHS BXPC 00000001 BXPC
00000001)
ACPI: 1 ACPI AML tables successfully acquired and loaded
ioapic0 at mainbus0 apid 0: pa 0xfec00000, version 0x11, 24 pins
cpu0 at mainbus0 apid 0
cpu0: Use mfence to serialize rdtsc
cpu0: AMD EPYC 7702P 64-Core Processor , id 0x830f10
cpu0: node 0, package 0, core 0, smt 0
cpu1 at mainbus0 apid 1
cpu1: AMD EPYC 7702P 64-Core Processor , id 0x830f10
cpu1: node 0, package 0, core 1, smt 0
acpi0 at mainbus0: Intel ACPICA 20221020
acpi0: X/RSDT: OemId <BOCHS ,BXPC ,00000001>, AslId <BXPC,00000001>
LNKS: ACPI: Found matching pin for 0.1.INTA at func 3: 9
LNKD: ACPI: Found matching pin for 0.1.INTD at func 2: 11
LNKC: ACPI: Found matching pin for 0.3.INTA at func 0: 11
LNKD: ACPI: Found matching pin for 0.28.INTA at func 0: 11
LNKA: ACPI: Found matching pin for 0.29.INTA at func 0: 10
LNKB: ACPI: Found matching pin for 0.30.INTA at func 0: 10
acpi0: SCI interrupting at int 9
acpi0: fixed power button present
timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
qemufwcfg0 at acpi0 (FWCF, QEMU0002): io 0x510-0x51b
qemufwcfg0: <QEMU>
pckbc1 at acpi0 (KBD, PNP0303) (kbd port): io 0x60,0x64 irq 1
pckbc2 at acpi0 (MOU, PNP0F13) (aux port): irq 12
fdc0 at acpi0 (FDC0, PNP0700): io 0x3f2-0x3f5,0x3f7 irq 6 drq 2
ACPI: Enabled 2 GPEs in block 00 to 0F
pckbd0 at pckbc1 (kbd slot)
pckbc1: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard
pms0 at pckbc1 (aux slot)
pckbc1: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0: Intel 82441FX (PMC) PCI and Memory Controller
(rev. 0x02)
pcib0 at pci0 dev 1 function 0: Intel 82371SB (PIIX3) PCI-ISA Bridge (rev. 0x00)
piixide0 at pci0 dev 1 function 1: Intel 82371SB IDE Interface (PIIX3) (rev.
0x00)
piixide0: bus-master DMA support present
piixide0: primary channel wired to compatibility mode
piixide0: primary channel interrupting at ioapic0 pin 14
atabus0 at piixide0 channel 0
piixide0: secondary channel wired to compatibility mode
piixide0: secondary channel interrupting at ioapic0 pin 15
atabus1 at piixide0 channel 1
uhci0 at pci0 dev 1 function 2: Intel 82371SB (PIIX3) USB Host Controller (rev.
0x01)
uhci0: interrupting at ioapic0 pin 11
usb0 at uhci0: USB revision 1.0
piixpm0 at pci0 dev 1 function 3: Intel 82371AB (PIIX4) Power Management
Controller (rev. 0x03)
timecounter: Timecounter "piixpm0" frequency 3579545 Hz quality 1000
piixpm0: 24-bit timer
piixpm0: interrupting at ioapic0 pin 9
iic0 at piixpm0 port 0: I2C bus
vga0 at pci0 dev 2 function 0: vendor 1234 product 1111 (rev. 0x02)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using wskbd0
wsmux1: connecting to wsdisplay0
drm at vga0 not configured
virtio0 at pci0 dev 3 function 0
virtio0: network device (id 1, rev. 0x00)
vioif0 at virtio0: features:
0x31870020<EVENT_IDX,INDIRECT_DESC,NOTIFY_ON_EMPTY,CTRL_MAC,CTRL_RX,CTRL_VQ,STATUS,MAC>
vioif0: Ethernet address XX:XX:XX:XX:XX:XX
virtio0: allocated 20480 byte for virtqueue 0 for rx0, size 256
virtio0: using 8192 byte (512 entries) indirect descriptors
virtio0: allocated 20480 byte for virtqueue 1 for tx0, size 256
virtio0: using 8192 byte (512 entries) indirect descriptors
virtio0: allocated 8192 byte for virtqueue 2 for control, size 64
virtio0: config interrupting at msix0 vec 0
virtio0: queues interrupting at msix0 vec 1
virtio1 at pci0 dev 28 function 0
virtio1: console device (id 3, rev. 0x00)
virtio1: autoconfiguration error: no matching child driver; not configured
virtio2 at pci0 dev 29 function 0
virtio2: SCSI device (id 8, rev. 0x00)
vioscsi0 at virtio2: features: 0x10000000<INDIRECT_DESC>
virtio2: allocated 86016 byte for virtqueue 0 for control, size 256
virtio2: using 73728 byte (4608 entries) indirect descriptors
virtio2: allocated 86016 byte for virtqueue 1 for event, size 256
virtio2: using 73728 byte (4608 entries) indirect descriptors
virtio2: allocated 86016 byte for virtqueue 2 for request, size 256
virtio2: using 73728 byte (4608 entries) indirect descriptors
vioscsi0: cmd_per_lun 128 qsize 256 seg_max 254 max_target 255 max_lun 16383
virtio2: config interrupting at msix1 vec 0
virtio2: queues interrupting at msix1 vec 1
scsibus0 at vioscsi0: 256 targets, 16384 luns per target
virtio3 at pci0 dev 30 function 0
virtio3: memory balloon device (id 5, rev. 0x00)
viomb0 at virtio3: features: 0x10000000<INDIRECT_DESC>
virtio3: allocated 8192 byte for virtqueue 0 for inflate, size 128
virtio3: allocated 8192 byte for virtqueue 1 for deflate, size 128
virtio3: interrupting at ioapic0 pin 10
isa0 at pcib0
attimer0 at isa0 port 0x40-0x43
pcppi0 at isa0 port 0x61
spkr0 at pcppi0: PC Speaker
wsbell at spkr0 not configured
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
attimer0: attached to pcppi0
acpicpu0 at cpu0: ACPI CPU
acpicpu0: C1: HLT, lat 0 us, pow 0 mW
vmt0 at cpu0
vmt0: UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
vmware: open failed, eax=0xffffffff, ecx=0x1e, edx=0x5658
vmt0: autoconfiguration error: failed to open backdoor RPC channel (TCLO
protocol)
acpicpu1 at cpu1: ACPI CPU
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
sd0 at scsibus0 target 0 lun 0: <QEMU, QEMU HARDDISK, 2.5+> disk fixed
sd0: 160 GB, 16383 cyl, 16 head, 1280 sec, 512 bytes/sect x 335544320 sectors
IPsec: Initialized Security Association Processing.
sd0: GPT GUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
dk0 at sd0: "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX", 318767037 blocks at 2048,
type: ffs
dk1 at sd0: "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX", 16775135 blocks at
318769152, type: swap
sd0: async, 8-bit transfers, tagged queueing
uhub0 at usb0: NetBSD (0x0000) UHCI root hub (0x0000), class 9/0, rev
1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhidev0 at uhub0 port 1 configuration 1 interface 0
uhidev0: QEMU (0x0627) QEMU USB Tablet (0x0001), rev 2.00/0.00, addr 2, iclass
3/0
ums0 at uhidev0: 3 buttons and Z dir
wsmouse1 at ums0 mux 0
atapibus0 at atabus1: 2 targets
cd0 at atapibus0 drive 0: <QEMU DVD-ROM, QM00003, 2.5+> cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
cd0(piixide0:1:0): using PIO mode 4, DMA mode 2 (using DMA)
swwdog0: software watchdog initialized
WARNING: 2 errors while detecting hardware; check system log.
boot device: sd0
root on dk0 dumps on dk1
root file system type: ffs
kern.module.path=/stand/amd64/10.1/modules
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
