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| From: | Leek, Jim |
| Subject: | RE: RHEL8 virt-manager QEMU 4.2.0 guest network no connection |
| Date: | Wed, 14 Jul 2021 14:50:44 +0000 |
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I got the network to partially work. (DNS resolves and I can get to the host, which is all I wanted anyway.) The problem was that I needed to be able to run as a normal user. Which was a matter of uncommenting this line in file /etc/libvirt/libvirt.conf:
uri_default = "qemu:///system" And perhaps copying that file to ~/.config/libvirt/libvirt.conf As seen in this stack overflow question: From: Leek, Jim I need to setup a CentOS 8 VM on my RHEL 8 workstation. I read that I can use virt-manager for this and everything should work OK. I was able to built and install the
guest OS, but I cannot find anyway to get files from the host to the guest, including getting the network hooked up. (I don't really need internet access, just the ability to get files back and forth.) The host is RHEL 8.4, the guest is CentOS 8.
Everything is installed from the yum repos, so it's all default, but my corporate IT environment is pretty locked down. So that might be related. I tried to use a shared drive, but apparently that is disabled in RHEL 8. By default the network is 'NAT' with virtio. One weird thing is I don't seem to have any domains, I don't know what to do about that: $ virsh list --all
Id Name State -------------------- $ virsh net-list --inactive
Name State Autostart Persistent ---------------------------------------------- default inactive yes yes The Host ifconfig: eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.251.13.178 netmask 255.255.252.0 broadcast 10.251.15.255 inet6 fe80::bbed:c35d:746a:309f prefixlen 64 scopeid 0x20<link> ether 6c:2b:59:e9:44:49 txqueuelen 1000 (Ethernet) RX packets 62689574 bytes 31243439143 (29.0 GiB) RX errors 30 dropped 160 overruns 0 frame 19 TX packets 167884075 bytes 222032001741 (206.7 GiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0x90380000-903a0000 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 763348 bytes 130801178 (124.7 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 763348 bytes 130801178 (124.7 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 ether 52:54:00:40:58:59 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 70 bytes 11200 (10.9 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ------- My guest ifconfig: enp8s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 6c:2b:59:e9:44:50 txqueuelen 1000 (Ethernet) RX packets 38 bytes 4953 (4.8 KiB) RX errors 0 dropped 7 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 1840 bytes 159880 (156.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1840 bytes 159880 (156.1 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255 ether 52:54:00:a8:4e:b8 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ---- The command line from the log file: 2021-07-10 00:47:56.514+0000: starting up libvirt version: 6.0.0, package: 35.module+el8.4.0+10230+7a9b21e4 (Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>,
2021-03-04-13:36:50, ), qemu version: 4.2.0qemu-kvm-4.2.0-48.module+el8.4.0+10368+630e803b, kernel: 4.18.0-305.7.1.el8_4.x86_64, hostname: yonggary.llnl.gov
LC_ALL=C \ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin \ HOME=/var/lib/libvirt/qemu/domain-8-centos8_1 \ XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-8-centos8_1/.local/share \ XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain-8-centos8_1/.cache \ XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain-8-centos8_1/.config \ QEMU_AUDIO_DRV=spice \ /usr/libexec/qemu-kvm \ -name guest=centos8_1,debug-threads=on \ -S \ -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-8-centos8_1/master-key.aes \ -enable-fips \ -machine pc-q35-rhel8.2.0,accel=kvm,usb=off,vmport=off,dump-guest-core=off \ -cpu Skylake-Server-IBRS,ss=on,vmx=on,pdcm=on,hypervisor=on,tsc-adjust=on,clflushopt=on,umip=on,pku=on,md-clear=on,stibp=on,arch-capabilities=on,ssbd=on,xsaves=on,ibpb=on,ibrs=on,amd-stibp=on,amd-ssbd=on,skip-l1dfl-vmentry=on,pschange-mc-no=on
\ -m 24000 \ -overcommit mem-lock=off \ -smp 2,sockets=2,cores=1,threads=1 \ -uuid d1d4a827-fe87-4c49-9ab2-3b4f52423c2a \ -no-user-config \ -nodefaults \ -chardev socket,id=charmonitor,fd=38,server,nowait \ -mon chardev=charmonitor,id=monitor,mode=control \ -rtc base=utc,driftfix=slew \ -global kvm-pit.lost_tick_policy=delay \ -no-hpet \ -no-shutdown \ -global ICH9-LPC.disable_s3=1 \ -global ICH9-LPC.disable_s4=1 \ -boot strict=on \ -device pcie-root-port,port=0x10,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x2 \ -device pcie-root-port,port=0x11,chassis=2,id=pci.2,bus=pcie.0,addr=0x2.0x1 \ -device pcie-root-port,port=0x12,chassis=3,id=pci.3,bus=pcie.0,addr=0x2.0x2 \ -device pcie-root-port,port=0x13,chassis=4,id=pci.4,bus=pcie.0,addr=0x2.0x3 \ -device pcie-root-port,port=0x14,chassis=5,id=pci.5,bus=pcie.0,addr=0x2.0x4 \ -device pcie-root-port,port=0x15,chassis=6,id=pci.6,bus=pcie.0,addr=0x2.0x5 \ -device pcie-root-port,port=0x16,chassis=7,id=pci.7,bus=pcie.0,addr=0x2.0x6 \ -device pcie-root-port,port=0x17,chassis=8,id=pci.8,bus=pcie.0,addr=0x2.0x7 \ -device pcie-pci-bridge,id=pci.9,bus=pci.1,addr=0x0 \ -device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.2,addr=0x0 \ -device virtio-serial-pci,id=virtio-serial0,bus=pci.3,addr=0x0 \ -blockdev '{"driver":"file","filename":"/home/leek2/qemu/rhel8_1.qcow2","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \ -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"qcow2","file":"libvirt-2-storage","backing":null}' \ -device virtio-blk-pci,scsi=off,bus=pci.4,addr=0x0,drive=libvirt-2-format,id=virtio-disk0,bootindex=1 \ -device ide-cd,bus=ide.0,id=sata0-0-0 \ -netdev tap,fd=40,id=hostnet0,vhost=on,vhostfd=41 \ -device virtio-net-pci,netdev=hostnet0,id=net0,mac=6c:2b:59:e9:44:50,bus=pci.7,addr=0x0 \ -chardev pty,id=charserial0 \ -device isa-serial,chardev=charserial0,id=serial0 \ -chardev socket,id=charchannel0,fd=42,server,nowait \ -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \ -chardev spicevmc,id=charchannel1,name=vdagent \ -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0 \ -device usb-tablet,id=input0,bus=usb.0,port=1 \ -spice port=5900,addr=127.0.0.1,disable-ticketing,image-compression=off,seamless-migration=on \ -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pcie.0,addr=0x1 \ -device ich9-intel-hda,id=sound0,bus=pcie.0,addr=0x1b \ -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 \ -chardev spicevmc,id=charredir0,name=usbredir \ -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 \ -chardev spicevmc,id=charredir1,name=usbredir \ -device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 \ -device virtio-balloon-pci,id=balloon0,bus=pci.5,addr=0x0 \ -object rng-random,id=objrng0,filename=/dev/urandom \ -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.6,addr=0x0 \ -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \ -msg timestamp=on char device redirected to /dev/pts/2 (label charserial0) |
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