Warning : Failed to set up UEFI / The Libvirt version does not support UEFI / Install options are limited...
Mario Marietto
marietto2008 at gmail.com
Tue Aug 22 17:01:55 UTC 2023
Et voila'. I've recompiled libvirt in this way :
git clone https://github.com/libvirt/libvirt.git
mkdir -p libvirt_build
cd libvirt
apt install meson xsltproc libgnutls28-dev libxml2-dev rst2pdf
meson build --prefix=$HOME/libvirt_build
ninja -C build
sudo ninja -C build install
cd build
nano vai.sh :
sudo ./run src/virtlockd & sudo ./run src/virtlogd & sudo ./run src/libvirtd
chmod +x vai.sh
this is the error I get :
root at devuan:~/Desktop/libvirt/build# ./vai.sh
2023-08-22 16:52:34.416+0000: 14725: info : libvirt version: 9.7.0
2023-08-22 16:52:34.416+0000: 14725: info : hostname: devuan
2023-08-22 16:52:34.416+0000: 14725: error : virFirewallApplyRuleDirect:518
: internal error: Failed to apply
firewall rules /usr/sbin/iptables -w --table filter --list-rules: iptables:
Failed to initialize nft: Protocol not supported
2023-08-22 16:52:34.428+0000: 14725: error : virFirewallApplyRuleDirect:518
: internal error: Failed to apply firewall rules /usr/sbin/ip6tables -w
--table filter --list-rules: ip6tables: Failed to initialize nft: Protocol
not supported
On Tue, Aug 22, 2023 at 6:49 PM Pavel Hrdina <phrdina at redhat.com> wrote:
> On Tue, Aug 22, 2023 at 06:22:25PM +0200, Mario Marietto wrote:
> > In your opinion should I remove virt-manager and all its dependencies
> > before launching the recompilation ?
>
> I would say there is no need to do that if you install libvirt to
> /usr/local as it should be separated from the libvirt installed by
> package manager.
>
> Pavel
>
> >
> > On Tue, Aug 22, 2023 at 6:05 PM Pavel Hrdina <phrdina at redhat.com> wrote:
> >
> > > On Tue, Aug 22, 2023 at 05:55:30PM +0200, Mario Marietto wrote:
> > > > I have installed virt-manager and all its dependencies grabbing the
> files
> > > > from the devuan 5 repository.
> > > > To recompile libvirt I need to acquire some basic information. Which
> > > > version should I compile ? Where is the source code located ? Do you
> have
> > > > some tutorial that explains the necessary steps to do it ? thanks.
> > >
> > > Everything can be found at https://libvirt.org/ not sure which version
> > > to pick, you can try latest upstream version but there might be some
> > > dependencies missing in Devuan, if that happens you can fallback to
> > > version that is provided by Devuan.
> > >
> > > For example this link has basic info on how to compile libvirt
> > > https://libvirt.org/compiling.html and here you can find sources
> > > to libvirt https://libvirt.org/downloads.html .
> > >
> > > Pavel
> > >
> > > > On Tue, Aug 22, 2023 at 5:50 PM Pavel Hrdina <phrdina at redhat.com>
> wrote:
> > > >
> > > > > On Tue, Aug 22, 2023 at 05:28:50PM +0200, Mario Marietto wrote:
> > > > > > root at devuan:~# virsh domcapabilities --machine virt
> --emulatorbin
> > > > > > /usr/bin/qemu-system-arm
> > > > > >
> > > > > > error: failed to get emulator capabilities
> > > > > > error: KVM is not supported on this platform: Function not
> > > implemented
> > > > > >
> > > > > > BUT it's not true :
> > > > > >
> > > > > > root at devuan:~# kvm-ok
> > > > > >
> > > > > > INFO: /dev/kvm exists
> > > > > > KVM acceleration can be used
> > > > >
> > > > > Are you using libvirt installed using package manager or some
> libvirt
> > > > > that you compiled yorself? Checking libvirt code this error only
> > > happens
> > > > > if libvirt was compiled without KVM, more specifically if header
> > > > > `/usr/include/linux/kvm.h` doesn't exists.
> > > > >
> > > > > I was not able to find any details on Devuan distro so not sure how
> > > > > the libvirt package is compiled. You might need to try compiling
> > > libvirt
> > > > > yourself.
> > > > >
> > > > > Pavel
> > > > >
> > > > > >
> > > > > > On Tue, Aug 22, 2023 at 5:27 PM Mario Marietto <
> > > marietto2008 at gmail.com>
> > > > > > wrote:
> > > > > >
> > > > > > > Oh sorry....
> > > > > > >
> > > > > > > On Tue, Aug 22, 2023 at 5:26 PM Mario Marietto <
> > > marietto2008 at gmail.com
> > > > > >
> > > > > > > wrote:
> > > > > > >
> > > > > > >> virsh domcapabilities --machine virt --emulatorbin
> > > > > > >> /path/to/qemu-system-arm
> > > > > > >>
> > > > > > >> error: failed to get emulator capabilities
> > > > > > >> error: Cannot check QEMU binary /path/to/qemu-system-arm: No
> such
> > > > > file or
> > > > > > >> directory
> > > > > > >>
> > > > > > >> On Tue, Aug 22, 2023 at 4:49 PM Pavel Hrdina <
> phrdina at redhat.com>
> > > > > wrote:
> > > > > > >>
> > > > > > >>> On Tue, Aug 22, 2023 at 04:05:09PM +0200, Mario Marietto
> wrote:
> > > > > > >>> > Where does libvirt want to find those files ? since the
> qemu
> > > 5.1
> > > > > > >>> > installation files have been placed under /usr/local
> during the
> > > > > command
> > > > > > >>> > make install,I have also copied the firmware files in :
> > > > > > >>> >
> > > > > > >>> > ls /usr/local/share/AAVMF
> > > > > > >>> >
> > > > > > >>> > AAVMF32_CODE.fd AAVMF_CODE.fd AAVMF_CODE.snakeoil.fd
> > > > > > >>> AAVMF_VARS.ms.fd
> > > > > > >>> > AAVMF32_VARS.fd AAVMF_CODE.ms.fd AAVMF_VARS.fd
> > > > > > >>> > AAVMF_VARS.snakeoil.fd
> > > > > > >>> >
> > > > > > >>> > but they aren't still recognized.
> > > > > > >>>
> > > > > > >>> Downgrading libvirt would not help in this specific case.
> Since
> > > > > version
> > > > > > >>> 5.2.0 libvirt uses firmware auto-selection. Libvirt is
> looking
> > > for
> > > > > json
> > > > > > >>> files describing available firmwares. It is documented in
> QEMU
> > > > > project
> > > > > > >>> git repository in `docs/interop/firmware.json`, this specific
> > > section
> > > > > > >>> describes where the json files should be placed:
> > > > > > >>>
> > > > > > >>> # It is recommended to create firmware JSON files (each
> > > containing a
> > > > > > >>> # single @Firmware root element) with a double-digit prefix,
> for
> > > > > example
> > > > > > >>> # "50-ovmf.json", "50-seabios-256k.json", etc, so they can be
> > > sorted
> > > > > in
> > > > > > >>> # predictable order. The firmware JSON files should be
> searched
> > > for
> > > > > in
> > > > > > >>> # three directories:
> > > > > > >>> #
> > > > > > >>> # - /usr/share/qemu/firmware -- populated by
> distro-provided
> > > > > firmware
> > > > > > >>> # packages (XDG_DATA_DIRS
> covers
> > > > > > >>> # /usr/share by default),
> > > > > > >>> #
> > > > > > >>> # - /etc/qemu/firmware -- exclusively for sysadmins' local
> > > > > additions,
> > > > > > >>> #
> > > > > > >>> # - $XDG_CONFIG_HOME/qemu/firmware -- exclusively for
> per-user
> > > > > local
> > > > > > >>> # additions
> > > (XDG_CONFIG_HOME
> > > > > > >>> # defaults to
> > > $HOME/.config).
> > > > > > >>>
> > > > > > >>> It doesn't matter where the *CODE* and *VARS* firmware files
> are
> > > > > placed
> > > > > > >>> if the path to these files is correct in the json files in
> one
> > > of the
> > > > > > >>> three directories.
> > > > > > >>>
> > > > > > >>> Looking at the qemu-efi-arm package it should install
> > > > > > >>>
> > > > > > >>> /usr/share/AAVMF/AAVMF32_CODE.fd
> > > > > > >>> /usr/share/AAVMF/AAVMF32_VARS.fd
> > > > > > >>> /usr/share/qemu/firmware/60-edk2-arm.json
> > > > > > >>>
> > > > > > >>> and that should be picked up correctly by libvirt.
> > > > > > >>>
> > > > > > >>>
> > > > > > >>> I don't know what machine types are available for 32bit ARM,
> but
> > > you
> > > > > > >>> should be able to figure that out by running:
> > > > > > >>>
> > > > > > >>> virsh capabilities | grep canonical
> > > > > > >>>
> > > > > > >>> it will show only lines with machine types, but my guess is
> on
> > > arm
> > > > > there
> > > > > > >>> should be 'virt' machine type so running
> > > > > > >>>
> > > > > > >>> virsh domcapabilities --machine virt --emulatorbin
> > > > > > >>> /path/to/qemu-system-arm
> > > > > > >>>
> > > > > > >>> where you should be able to see the firmware paths if they
> are
> > > > > correctly
> > > > > > >>> detected by libvirt.
> > > > > > >>>
> > > > > > >>> Pavel
> > > > > > >>>
> > > > > > >>>
> > > > > > >>> > On Tue, Aug 22, 2023 at 3:55 PM Mario Marietto <
> > > > > marietto2008 at gmail.com
> > > > > > >>> >
> > > > > > >>> > wrote:
> > > > > > >>> >
> > > > > > >>> > > I've already did that :
> > > > > > >>> > >
> > > > > > >>> > > # apt install qemu-efi-arm
> > > > > > >>> > >
> > > > > > >>> > > Reading package lists... Done
> > > > > > >>> > > Building dependency tree... Done
> > > > > > >>> > > Reading state information... Done
> > > > > > >>> > > qemu-efi-arm is already the newest version (2022.11-6).
> > > > > > >>> > > qemu-efi-arm set to manually installed.
> > > > > > >>> > >
> > > > > > >>> > > if I don't get wrong,that package do the installation of
> the
> > > > > > >>> following
> > > > > > >>> > > files :
> > > > > > >>> > >
> > > > > > >>> > > root at devuan:/usr/share/AAVMF# ls
> > > > > > >>> > >
> > > > > > >>> > > AAVMF32_CODE.fd AAVMF_CODE.fd AAVMF_CODE.snakeoil.fd
> > > > > > >>> > > AAVMF_VARS.ms.fd
> > > > > > >>> > > AAVMF32_VARS.fd AAVMF_CODE.ms.fd AAVMF_VARS.fd
> > > > > > >>> > > AAVMF_VARS.snakeoil.fd
> > > > > > >>> > >
> > > > > > >>> > > in my case they have been correctly placed under
> > > /usr/share/AAVMF
> > > > > > >>> > >
> > > > > > >>> > > I'm not sure that the problem is there. The error message
> > > talks
> > > > > > >>> about the
> > > > > > >>> > > libvirt version that could be wrong. What about if I
> > > retrocede
> > > > > > >>> libirt 7.0
> > > > > > >>> > > to 6.9 for example. Why 6.9 ?
> > > > > > >>> > >
> > > > > > >>> > >
> > > > > > >>> > > As you can read below,it supports qemu 5.0 and newer...
> > > > > > >>> > >
> > > > > > >>> > > v6.9.0 (2020-11-02)
> > > > > > >>> > >
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > *New features*
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > nodedev: Add support for channel subsystem (CSS)
> > > devices on
> > > > > > >>> S390
> > > > > > >>> > >
> > > > > > >>> > > A CSS device is represented as a parent device of
> a CCW
> > > > > device.
> > > > > > >>> > > This support allows to create vfio-ccw mediated
> devices
> > > > > with
> > > > > > >>> > > virNodeDeviceCreateXML().
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > qemu: Implement memory failure event
> > > > > > >>> > >
> > > > > > >>> > > New event is implemented that is emitted whenever a
> > > guest
> > > > > > >>> > > encounters a memory failure.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > qemu: Implement support for <transient/> disks
> > > > > > >>> > >
> > > > > > >>> > > VMs based on the QEMU hypervisor now can use
> > > <transient/>
> > > > > > >>> option
> > > > > > >>> > > for local file-backed disks to configure a disk
> which
> > > > > discards
> > > > > > >>> changes made
> > > > > > >>> > > to it while the VM was active.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > hyperv: implement new APIs
> > > > > > >>> > >
> > > > > > >>> > > The virConnectGetCapabilities(),
> > > virConnectGetMaxVcpus(),
> > > > > > >>> > > virConnectGetVersion(), virDomainGetAutostart(),
> > > > > > >>> > > virDomainSetAutostart(), virNodeGetFreeMemory(),
> > > > > > >>> virDomainReboot(),
> > > > > > >>> > > virDomainReset(), virDomainShutdown(), and
> > > > > > >>> virDomainShutdownFlags()
> > > > > > >>> > > APIs have been implemented in the Hyper-V driver.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > bhyve: implement virtio-9p filesystem support
> > > > > > >>> > >
> > > > > > >>> > > Implement virito-9p shared filesystem using the
> > > > > <filesystem/>
> > > > > > >>> > > element.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > qemu: Add support for vDPA network devices.
> > > > > > >>> > >
> > > > > > >>> > > VMs using the QEMU hypervisor can now specify vDPA
> > > network
> > > > > > >>> devices
> > > > > > >>> > > using <interface type='vdpa'>. The node device APIs
> > > also
> > > > > now
> > > > > > >>> list
> > > > > > >>> > > and provide XML descriptions for vDPA devices.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > cpu_map: Add EPYC-Rome CPU model
> > > > > > >>> > >
> > > > > > >>> > > *It's supported in QEMU 5.0.0 and newer.*
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > cpu: Add a flag for XML validation in CPU
> comparison
> > > > > > >>> > >
> > > > > > >>> > > The virConnectCompareCPU and
> > > virConnectCompareHypervisorCPU
> > > > > > >>> API now
> > > > > > >>> > > support the VIR_CONNECT_COMPARE_CPU_VALIDATE_XML
> flag,
> > > > > which
> > > > > > >>> > > enables XML validation. For virsh, this feature is
> > > enabled
> > > > > by
> > > > > > >>> passing the
> > > > > > >>> > > --validate option to the cpu-compare and
> > > > > hypervisor-cpu-compare
> > > > > > >>> > > subcommands.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > qemu: Introduce virtio-balloon free page reporting
> > > feature
> > > > > > >>> > >
> > > > > > >>> > > Introduce the optional attribute
> free-page-reporting
> > > for
> > > > > virtio
> > > > > > >>> > > memballoon device. It enables/disables the ability
> of
> > > the
> > > > > QEMU
> > > > > > >>> virtio
> > > > > > >>> > > memory balloon to return unused pages back to the
> > > > > hypervisor.
> > > > > > >>> QEMU 5.1 and
> > > > > > >>> > > newer support this feature.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > *Improvements*
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > qemu: Make 'cbitpos' & 'reducedPhysBits' attrs
> optional
> > > > > > >>> > >
> > > > > > >>> > > Libvirt probes the underlying platform in order to
> > > fill in
> > > > > > >>> these
> > > > > > >>> > > SEV attributes automatically before launching a
> guest.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > util: support device stats collection for SR-IOV VF
> > > hostdev
> > > > > > >>> > >
> > > > > > >>> > > For SR-IOV VF hostdevs, libvirt now supports
> retrieving
> > > > > device
> > > > > > >>> > > traffic stats via the virDomainInterfaceStats API
> and
> > > virsh
> > > > > > >>> > > domifstat.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > logging: Allow disabling log rollover
> > > > > > >>> > >
> > > > > > >>> > > Set max_len=0 in virtlogd.conf to disable log
> rollover.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > qemu: Set noqueue qdisc for TAP devices
> > > > > > >>> > >
> > > > > > >>> > > Set noqueue instead of the former pfifo_fast queue
> > > > > discipline
> > > > > > >>> for
> > > > > > >>> > > TAP devices. It will avoid needless cost of host
> CPU
> > > cycles
> > > > > > >>> and thus
> > > > > > >>> > > improve performance.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > qemu: virtiofs can be used without NUMA nodes
> > > > > > >>> > >
> > > > > > >>> > > Virtiofs is supported for the VM without NUMA
> nodes but
> > > > > > >>> configured
> > > > > > >>> > > with shared memory.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > *Bug fixes*
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > hyperv: ensure WQL queries work in all locales
> > > > > > >>> > >
> > > > > > >>> > > Relying on the "Description" field caused queries
> to
> > > fail
> > > > > on
> > > > > > >>> > > non-"en-US" systems. The queries have been updated
> to
> > > avoid
> > > > > > >>> using localized
> > > > > > >>> > > strings.
> > > > > > >>> > > -
> > > > > > >>> > >
> > > > > > >>> > > rpc: Fix virt-ssh-helper detection
> > > > > > >>> > >
> > > > > > >>> > > libvirt 6.8.0 failed to correctly detect the
> > > availability
> > > > > of
> > > > > > >>> the
> > > > > > >>> > > new virt-ssh-helper command on the remote host, and
> > > thus
> > > > > always
> > > > > > >>> > > used the fallback instead; this has now been fixed.
> > > > > > >>> > >
> > > > > > >>> > >
> > > > > > >>> > > What do you think ? Can you share some documentation
> about
> > > how to
> > > > > > >>> > > recompile an older version of libvirt from source code ?
> > > thanks.
> > > > > > >>> > >
> > > > > > >>> > > On Tue, Aug 22, 2023 at 3:35 PM Pavel Hrdina <
> > > phrdina at redhat.com
> > > > > >
> > > > > > >>> wrote:
> > > > > > >>> > >
> > > > > > >>> > >> On Tue, Aug 22, 2023 at 02:49:05PM +0200, Mario Marietto
> > > wrote:
> > > > > > >>> > >> > Hello to everyone.
> > > > > > >>> > >> >
> > > > > > >>> > >> > I'm trying to use qemu 5.1 with virt-manager and
> libvirt
> > > on
> > > > > my ARM
> > > > > > >>> > >> > chromebook (armhf 32 bit cpu) running with Devuan 4 as
> > > host
> > > > > o.s.
> > > > > > >>> > >> >
> > > > > > >>> > >> > By default it uses qemu and its dependencies,version
> 5.2.
> > > I
> > > > > > >>> remember
> > > > > > >>> > >> that I
> > > > > > >>> > >> > can't use qemu 5.2,because it doesn't have any
> support for
> > > > > KVM as
> > > > > > >>> you
> > > > > > >>> > >> can
> > > > > > >>> > >> > read here :
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>>
> > > https://lists.gnu.org/archive/html/qemu-devel/2020-09/msg02074.html
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > For this reason,I've compiled qemu 5.1 from source.
> Below
> > > I
> > > > > shown
> > > > > > >>> how I
> > > > > > >>> > >> > have configured everything such as a little piece of
> > > > > compilation
> > > > > > >>> > >> messages :
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > # apt install libgtk-3-dev libpulse-dev libgbm-dev
> > > > > > >>> libspice-protocol-dev
> > > > > > >>> > >> > libspice-server-dev libusb-1.0-0-dev libepoxy-dev
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > # cp
> /root/Desktop/qemu-v5.1.0/arm-softmmu/qemu-system-arm
> > > > > > >>> /usr/bin
> > > > > > >>> > >> >
> > > > > > >>> > >> > # CFLAGS=-Wno-error ./configure
> > > --target-list=x86_64-softmmu
> > > > > > >>> > >> --enable-opengl
> > > > > > >>> > >> > --enable-gtk --enable-kvm --enable-guest-agent
> > > --enable-spice
> > > > > > >>> > >> --audio-drv-
> > > > > > >>> > >> > list="oss pa" --enable-libusb
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > A little piece of the log messages that I've got from
> the
> > > > > > >>> compilation of
> > > > > > >>> > >> > qemu 5.1 :
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > https://pastebin.ubuntu.com/p/8DYfgPvhXy/
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > These are the resulting versions of my frankenstein
> > > operation
> > > > > :
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > # virsh version
> > > > > > >>> > >> >
> > > > > > >>> > >> > Compiled against library: libvirt 7.0.0
> > > > > > >>> > >> > Using library: libvirt 7.0.0
> > > > > > >>> > >> > Using API: QEMU 7.0.0
> > > > > > >>> > >> > Running hypervisor: QEMU 5.1.0
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > At this point I ran virt-manager. It has been able to
> > > detect
> > > > > > >>> qemu,but I
> > > > > > >>> > >> get
> > > > > > >>> > >> > the following error :
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > Warning : Failed to set up UEFI.
> > > > > > >>> > >> > The Libvirt version does not support UEFI.
> > > > > > >>> > >> > Install options are limited.
> > > > > > >>> > >> >
> > > > > > >>> > >> > (I have also tried upgrading devuan 4 with devuan 5
> and
> > > I've
> > > > > got
> > > > > > >>> the
> > > > > > >>> > >> same
> > > > > > >>> > >> > error :
> > > > > > >>> > >>
> > > > > > >>> > >> You most likely need to install qemu-efi-arm package
> which
> > > > > should
> > > > > > >>> > >> provide 32bit arm firmware files. The package name is a
> bit
> > > > > > >>> confusing
> > > > > > >>> > >> as it doesn't originate from qemu project, it is from
> edk2
> > > > > project.
> > > > > > >>> > >>
> > > > > > >>> > >> Without this package libvirt most likely doesn't report
> any
> > > efi
> > > > > > >>> files
> > > > > > >>> > >> and that's what causes the error you are hitting.
> > > > > > >>> > >>
> > > > > > >>> > >> Pavel
> > > > > > >>> > >>
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > root at devuan:/usr/bin# virsh version
> > > > > > >>> > >> >
> > > > > > >>> > >> > Compiled against library: libvirt 9.0.0
> > > > > > >>> > >> > Using library: libvirt 9.0.0
> > > > > > >>> > >> > Using API: QEMU 9.0.0
> > > > > > >>> > >> > Running hypervisor: QEMU 5.1.0
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > If I change qemu-system-arm vers. 5.1 with
> qemu-system-arm
> > > > > > >>> 5.2,the error
> > > > > > >>> > >> > disappears. So,it seems that libvirt does not accept
> > > > > > >>> qemu-system-arm
> > > > > > >>> > >> vers.
> > > > > > >>> > >> > 5.1 or maybe any version lower than 5.2,I don't know.
> But
> > > as
> > > > > I've
> > > > > > >>> said,I
> > > > > > >>> > >> > can't use any version of qemu greater or equal to 5.2
> on
> > > my
> > > > > > >>> setup. And I
> > > > > > >>> > >> > want to use virt-manager and libvirt because I find
> these
> > > > > tools
> > > > > > >>> very
> > > > > > >>> > >> > comfortable instead of using the "raw" qemu
> parameters. Is
> > > > > there a
> > > > > > >>> > >> > workaround ? Maybe I can recompile virt-manager and /
> or
> > > > > libvirt
> > > > > > >>> from
> > > > > > >>> > >> the
> > > > > > >>> > >> > source code ? but how ? Do you think that it could
> work
> > > if I
> > > > > use
> > > > > > >>> > >> something
> > > > > > >>> > >> > like this (if it exists and if it can be reached in
> some
> > > way)
> > > > > :
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > Compiled against library: libvirt 5.0.0
> > > > > > >>> > >> > Using library: libvirt 5.0.0
> > > > > > >>> > >> > Using API: QEMU 5.0.0
> > > > > > >>> > >> > Running hypervisor: QEMU 5.1.0
> > > > > > >>> > >> >
> > > > > > >>> > >> >
> > > > > > >>> > >> > thanks.
> > > > > > >>> > >> >
> > > > > > >>> > >> > --
> > > > > > >>> > >> > Mario.
> > > > > > >>> > >>
> > > > > > >>> > >
> > > > > > >>> > >
> > > > > > >>> > > --
> > > > > > >>> > > Mario.
> > > > > > >>> > >
> > > > > > >>> >
> > > > > > >>> >
> > > > > > >>> > --
> > > > > > >>> > Mario.
> > > > > > >>>
> > > > > > >>
> > > > > > >>
> > > > > > >> --
> > > > > > >> Mario.
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > > > --
> > > > > > > Mario.
> > > > > > >
> > > > > >
> > > > > >
> > > > > > --
> > > > > > Mario.
> > > > >
> > > >
> > > >
> > > > --
> > > > Mario.
> > >
> >
> >
> > --
> > Mario.
>
--
Mario.
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