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Please can we see the passwd and group files, e.g. # grep "virt\|107\|qemu\|" /etc/{passwd,group} mine shows as /etc/passwd:qemu:x:107:107:qemu user:/:/sbin/nologin /etc/group:kvm:x:36:qemu /etc/group:qemu:x:107:myuser I added myuser to the qemu group during random troubleshooting |
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[root@lotap ~]# egrep "virt|107|qemu" /etc/{passwd,group} /etc/passwd:qemu:x:107:107:qemu user:/:/sbin/nologin /etc/group:kvm:x:36:qemu /etc/group:qemu:x:107: [root@lotap ~]# |
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Look, I'm a noob, but I see a similar problem here: https : //bugzilla.redhat.com/show_bug.cgi?id=883832 HTH |
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same here https://www.centos.org/forums/viewtopic.php?t=48075&p=204352 |
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@KeiKun, no - that is a different issue. |
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Aug 24 22:03:48 localhost systemd[1]: Started Virtualization daemon. Aug 24 22:03:48 localhost libvirtd[10752]: libvirt version: 1.1.1, package: 29.el7_0.1 (CentOS BuildSystem <http://bugs.centos.org>, 2014-07-22-19:38:59, worker1.bsys.centos.org) Aug 24 22:03:48 localhost libvirtd[10752]: Unable to lookup SELinux process context: Invalid argument Aug 24 22:03:48 localhost dnsmasq[976]: read /etc/hosts - 9 addresses Aug 24 22:03:48 localhost dnsmasq[976]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses Aug 24 22:03:48 localhost dnsmasq-dhcp[976]: read /var/lib/libvirt/dnsmasq/default.hostsfile Aug 24 22:03:57 localhost libvirtd[10752]: failed to connect to monitor socket: No such process Aug 24 22:03:57 localhost libvirtd[10752]: internal error: process exited while connecting to monitor: qemu-kvm: -chardev pty,id=charserial0: Failed to create chardev Aug 24 22:03:57 localhost libvirtd[10752]: Unable to lookup SELinux process context: Invalid argument Aug 24 22:06:24 localhost systemd[1]: Started Virtualization daemon. |
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I was able to fix the issue regarding user error - User record for user '107' was not found: No such file or directory - and similar group error by modifying the /etc/nsswitch.conf file passwd: files sss shadow: files sss group: files sss to passwd: files shadow: files group: files |
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I am now getting the error regarding chardev Aug 24 23:59:16 *.com libvirtd[3268]: failed to connect to monitor socket: No such process Aug 24 23:59:16 *.com libvirtd[3268]: internal error: process exited while connecting to monitor: qemu-kvm: -chardev pty,id=charserial0: Failed to create chardev |
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@codebauss Right, sssd is not enabled on my system either, so this seems the right fix. Re the chardev error, look at KeiKun's link above. My system is not having the chardev error. |
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"Unable to lookup SELinux process context" You may have disabled SELinux. See if re-enabling SELinux helps. If this causes problems, you can try "setenforce 0" to make SELinux work in permissive mode. |
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I've tried both, neither work. Definitely looks to be something with CentOS as Fedora 20 and RHEL 7 work perfectly fine. The versions of qemu-kvm, libvirt-daemon, and virt-install are different on Fedora and RHEL than on CentOS. |
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codebauss, please run rpm -qi over the packages which provide those applications and paste here the output. If you also have access to RHEL7, please run the same test and also include the result here. |
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Same problem. After that I have add pseudo serial device all works fine. I hope that is useful for you. Pasquale |
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I wronged. I added a serial attached to null device. After that, creation of VM work fine. |
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Still waiting for the results from rpm -qi qemu-kvm libvirt-daemon virt-install |
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This is my result [root@vmsrv ~]# rpm -qi qemu-kvm libvirt-daemon virt-install Name : qemu-kvm Epoch : 10 Version : 1.5.3 Release : 60.el7_0.5 Architecture: x86_64 Install Date: Fri 05 Sep 2014 05:47:24 PM CEST Group : Development/Tools Size : 5772808 License : GPLv2+ and LGPLv2+ and BSD Signature : RSA/SHA256, Fri 25 Jul 2014 02:34:35 PM CEST, Key ID 24c6a8a7f4a80eb5 Source RPM : qemu-kvm-1.5.3-60.el7_0.5.src.rpm Build Date : Fri 25 Jul 2014 07:40:36 AM CEST Build Host : worker1.bsys.centos.org Relocations : (not relocatable) Packager : CentOS BuildSystem <http://bugs.centos.org> Vendor : CentOS URL : http://www.qemu.org/ Summary : QEMU is a FAST! processor emulator Description : qemu-kvm is an open source virtualizer that provides hardware emulation for the KVM hypervisor. qemu-kvm acts as a virtual machine monitor together with the KVM kernel modules, and emulates the hardware for a full system such as a PC and its assocated peripherals. As qemu-kvm requires no host kernel patches to run, it is safe and easy to use. Name : libvirt-daemon Version : 1.1.1 Release : 29.el7_0.1 Architecture: x86_64 Install Date: Fri 05 Sep 2014 05:47:11 PM CEST Group : Development/Libraries Size : 2797603 License : LGPLv2+ Signature : RSA/SHA256, Wed 23 Jul 2014 03:48:10 AM CEST, Key ID 24c6a8a7f4a80eb5 Source RPM : libvirt-1.1.1-29.el7_0.1.src.rpm Build Date : Tue 22 Jul 2014 09:43:06 PM CEST Build Host : worker1.bsys.centos.org Relocations : (not relocatable) Packager : CentOS BuildSystem <http://bugs.centos.org> Vendor : CentOS URL : http://libvirt.org/ Summary : Server side daemon and supporting files for libvirt library Description : Server side daemon required to manage the virtualization capabilities of recent versions of Linux. Requires a hypervisor specific sub-RPM for specific drivers. Name : virt-install Version : 0.10.0 Release : 20.el7 Architecture: noarch Install Date: Fri 05 Sep 2014 06:12:10 PM CEST Group : Applications/Emulators Size : 69295 License : GPLv2+ Signature : RSA/SHA256, Fri 04 Jul 2014 07:41:31 AM CEST, Key ID 24c6a8a7f4a80eb5 Source RPM : virt-manager-0.10.0-20.el7.src.rpm Build Date : Mon 09 Jun 2014 10:50:47 PM CEST Build Host : worker1.bsys.centos.org Relocations : (not relocatable) Packager : CentOS BuildSystem <http://bugs.centos.org> Vendor : CentOS URL : http://virt-manager.org/ Summary : Utilities for installing virtual machines Description : Package includes several command line utilities, including virt-install (build and install new VMs) and virt-clone (clone an existing virtual machine). |
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@pdifeo: As member in the QA team, I know very well what should those packages be. What I want is to make sure that the original poster uses CentOS packages. And to find out which exact versions are different from the upstream ones as he claims in http://bugs.centos.org/view.php?id=7507#c20757 |
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Ok, but I had the same initial problem. The creation of the VM was not done and gave the error "libvirtError: internal error: process exited while connecting to monitor: qemu-kvm: -chardev pty, id = charserial0: Failed to create chardev. " By adding a fake serial, I have solved the problem and wanted to share the news. I hope this can be of help to someone. greetings paschal |
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[root@unplugmybrain ~]# rpm -qi qemu-kvm libvirt-daemon virt-install Name : qemu-kvm Epoch : 10 Version : 1.5.3 Release : 60.el7_0.5 Architecture: x86_64 Install Date: Sun 07 Sep 2014 11:27:11 PM EDT Group : Development/Tools Size : 5772808 License : GPLv2+ and LGPLv2+ and BSD Signature : RSA/SHA256, Fri 25 Jul 2014 08:34:35 AM EDT, Key ID 24c6a8a7f4a80eb5 Source RPM : qemu-kvm-1.5.3-60.el7_0.5.src.rpm Build Date : Fri 25 Jul 2014 01:40:36 AM EDT Build Host : worker1.bsys.centos.org Relocations : (not relocatable) Packager : CentOS BuildSystem <http://bugs.centos.org> Vendor : CentOS URL : http://www.qemu.org/ Summary : QEMU is a FAST! processor emulator Description : qemu-kvm is an open source virtualizer that provides hardware emulation for the KVM hypervisor. qemu-kvm acts as a virtual machine monitor together with the KVM kernel modules, and emulates the hardware for a full system such as a PC and its assocated peripherals. As qemu-kvm requires no host kernel patches to run, it is safe and easy to use. Name : libvirt-daemon Version : 1.1.1 Release : 29.el7_0.1 Architecture: x86_64 Install Date: Sun 07 Sep 2014 11:26:19 PM EDT Group : Development/Libraries Size : 2797603 License : LGPLv2+ Signature : RSA/SHA256, Tue 22 Jul 2014 09:48:10 PM EDT, Key ID 24c6a8a7f4a80eb5 Source RPM : libvirt-1.1.1-29.el7_0.1.src.rpm Build Date : Tue 22 Jul 2014 03:43:06 PM EDT Build Host : worker1.bsys.centos.org Relocations : (not relocatable) Packager : CentOS BuildSystem <http://bugs.centos.org> Vendor : CentOS URL : http://libvirt.org/ Summary : Server side daemon and supporting files for libvirt library Description : Server side daemon required to manage the virtualization capabilities of recent versions of Linux. Requires a hypervisor specific sub-RPM for specific drivers. Name : virt-install Version : 0.10.0 Release : 20.el7 Architecture: noarch Install Date: Sun 07 Sep 2014 11:59:27 PM EDT Group : Applications/Emulators Size : 69295 License : GPLv2+ Signature : RSA/SHA256, Fri 04 Jul 2014 01:41:31 AM EDT, Key ID 24c6a8a7f4a80eb5 Source RPM : virt-manager-0.10.0-20.el7.src.rpm Build Date : Mon 09 Jun 2014 04:50:47 PM EDT Build Host : worker1.bsys.centos.org Relocations : (not relocatable) Packager : CentOS BuildSystem <http://bugs.centos.org> Vendor : CentOS URL : http://virt-manager.org/ Summary : Utilities for installing virtual machines Description : Package includes several command line utilities, including virt-install (build and install new VMs) and virt-clone (clone an existing virtual machine). [root@unplugmybrain ~]# |
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Unfortunately I decided to go with Ubuntu w/VirtualBox as I was still having issues with Fedora as well :( I was able to resolve the sssd issue by installing and configuring sssd rather than modifying nsswitch.conf but still getting the chardev error. I am coming back to this as I would much rather prefer to use rpm based CentOS than Ubuntu. |
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@codebauss Read my posts. In creation phase I added a fake serial (null) and after all work fine. |
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@pdifeo, unfortunately I do not know how to do so. Can you outline the steps or provide link to article? |
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1) Into "step 5 of 5" select "Customize configuration before install" 2) Click on "Finish" 3) At next screen click on "Add hardware" 4) Select "Serial" from list and on the right select "Device type : null device" 5) Click on finish. The serial device don't show on the list. Don't worry. 6) Click on "Begin installation" on the top. The creation start without problems. Regards |
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Ah, thank you! |
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So then the issue looks to be with libvirt or qemu-kvm creating the serial device. I am looking further into it as this is a new area and while I was able to create the device via virt-manager, would really like this to work as it did previously without any intervention or at least be able to understand the mechanics of why it is not working and how to fix besides point and click but thank you very much as I at least do not have to be held up from working. |
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@pdifeo that's hard for no GUI centos7 anyway, i already sent a report like days ago https://bugzilla.redhat.com/show_bug.cgi?id=1138502 |
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This is the part that regards serial configuration in .conf xml file <serial type='null'> <target port='0'/> </serial> <console type='null'> <target type='serial' port='0'/> </console> |
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@pdifeo i don't still find that file can you pinpoint me where it is located? |
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The file is locate under /etc/libvirt/qemu and have VM-Name.xml as filename. But this is the filemane created by virt-manager. I think that with cmd line command the correct parameter in vm creation is -chardev null,id=charserial0 but I'm not sure. |
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I am unable to find that particular VM-Name.xml(actually the name i was looking is vm1).. this is what i executed virt-install \ --os-variant=rhel7 \ --disk path=/var/lib/libvirt/images/vm1.img,size=10 \ --location=http://mirror.ovh.net/ftp.centos.org/7/os/x86_64/ \ --graphics vnc \ --vcpus 2 \ --ram=1024 \ --name=vm1 \ --hvm \ --noautoconsole [root@localhost qemu]$ pwd /etc/libvirt/qemu [root@localhost qemu]$ ls -lah total 12K drwx------ 3 root root 4.0K Sep 13 12:36 . drwx------ 6 root root 4.0K Sep 13 12:37 .. drwx------ 3 root root 4.0K Sep 13 12:40 networks [root@localhost qemu]$ |
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I figured it out I believe. Modify your /etc/fstab and then restart your server: vi /etc/fstab You will/should see a line starting with devpts. Copy the line just in case something goes wrong and comment out the original. Modify the copied line to look like this: devpts /dev/pts devpts gid=5,mode=620 0 0 Comment back letting us know if it works. Worked for me! |
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Previously guest log showed: 2014-09-08 08:46:03.988+0000: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin /usr/libexec/qemu-kvm -name websrv1 -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off -m 1024 -realtime mlock=off -smp 1,sockets=1,cores=1,threads= 1 -uuid 3b80618b-4ce5-413b-bc34-f3b773a85de2 -nographic -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/websrv1.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-reboot -boot strict=on -kernel /var/lib/libvirt/boot/virtinst-vmlinuz.ZnAYt_ -initrd /var/lib/libvirt/boot/virtinst-initrd.img.92jTwK -append console=ttyS0 -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/libvirt/images/websrv1.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/root/c7min.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=28,id=hostnet0,vhost=on,vhostfd=29 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:88:f1:66,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 qemu-kvm: -chardev pty,id=charserial0: Failed to create chardev Now: 2014-09-19 10:43:04.238+0000: starting up LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin /usr/libexec/qemu-kvm -name websrv1 -S -machine pc-i440fx-rhel7.0.0,accel=kvm,usb=off -m 1024 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid e5d20a8e-34ca-4b43-917f-02ce3fdd7434 -nographic -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/websrv1.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-reboot -boot strict=on -kernel /var/lib/libvirt/boot/virtinst-vmlinuz.rBi0TD -initrd /var/lib/libvirt/boot/virtinst-initrd.img.lOsjFG -append console=ttyS0 -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/var/lib/libvirt/images/websrv1.img,if=none,id=drive-virtio-disk0,format=raw,cache=none -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -drive file=/var/lib/libvirt/images/c7min.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=24,id=hostnet0,vhost=on,vhostfd=25 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ca:48:89,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 char device redirected to /dev/pts/1 (label charserial0) |
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[root@server ~]# virt-install -n websrv1 -r 1024 --nographics --location /var/lib/libvirt/images/c7min.iso --disk path=/var/lib/libvirt/images/websrv1.img,size=8 -x "console=ttyS0" Starting install... Retrieving file .treeinfo... | 1.9 kB 00:00:00 Retrieving file vmlinuz... | 9.4 MB 00:00:00 Retrieving file initrd.img... | 67 MB 00:00:00 Creating domain... | 0 B 00:00:00 Connected to domain websrv1 Escape character is ^] [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.10.0-123.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.2 20140120 (Red Hat 4.8.2-16) (GCC) ) #1 SMP Mon Jun 30 12:09:22 UTC 2014 [ 0.000000] Command line: console=ttyS0 [ 0.000000] e820: BIOS-provided physical RAM map: ... ... ... Installing iwl3945-firmware (292/292) Performing post-installation setup tasks Performing post-installation setup tasks . Installing bootloader . Configuring installed system . Writing network configuration . Creating users . Configuring addons . Generating initramfs . Running post-installation scripts . Use of this product is subject to the license agreement found at /usr/share/centos-release/EULA Installation complete. Press return to quit [anaconda] 1:main* 2:shell 3:log 4:storage-log 5:program-log |
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So, I have a fresh install of CentOS on another server and fstab has the same "defaults" instead of gid=5,mode=620. Unfortunately I cannot re-image this server however if someone wants/is able to do a fresh install and see if fstab still has defaults and whether or not it works right out the box and then if it works modifying fstab I believe we can put this bug to rest. |
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@codebauss, in my /etc/fstab I deleted devpts line and now works also for me. For the same line in fstab I have also had problems with the VNC connection when opening gnome-terminal. After deletion, all works fine. |
- Anonymous
