libvirt2.0 installation

Enterprise 2019-08-14 07:33:32 views: null

table of Contents

1.libvirt Introduction

Libvirt is open source API, daemon and management tools for managing virtualization platforms. It can be used to manage KVM, Xen, VMware ESX, QEMU and other virtualization technologies. There are many online articles to do, but here is not described in detail. libvirt installation process itself is not difficult, mainly centos native will own a version of libvirt, at the same time, if the self-compiled version before installing, did not release comes with libvirt clean uninstall, there will be a variety of error . The author is more busy, time rush, layout may not look good, please forgive me.

2. Uninstall system comes with libvirt

2.1. View related libvirt package is currently installed

 [root@localhost libvirt-2.0.0]# rpm -qa |grep libvirt

2.2. All uninstall

Due to the current environment is already the author of a clean uninstall, therefore, not demonstrated here

 [root@localhost libvirt-2.0.0]# yum remove `rpm -qa |grep libvirt`

3. Use tar package compiled and installed

3.1. Unzip

 [root@localhost home]# tar xvf libvirt-2.0.0.tar.xz

3.2. Generate Makefile

Note: If no parameter ./configure, various files will be installed, such as / usr / local, / var / local below, so inconsistent and native installation path, usually not
so mounted 1

./configure --prefix=/usr --localstatedir=/var  --sysconfdir=/etc --enable-debug=yes $ make $ sudo make install

3.3. Error Handling

Error 1: need to install the dependencies:

    configure: error: You must install the pciaccess module to build with udev
    [root@localhost libvirt-2.0.0]# yum install libpciaccess-devel
    configure: error: You must install the libyajl library & headers to compile libvirt
    [root@localhost libvirt-2.0.0]# yum install yajl-devel
    configure: error: You must install device-mapper-devel/libdevmapper >= 1.0.0 to compile libvirt
    [root@localhost libvirt-2.0.0]# yum install device-mapper-devel
    configure: error: xml2-config not found. Please check your libxml2 installation.
    
    yum -y install libxml2-devel
    configure: error: libnl-devel >= 1.1 is required for macvtap support
    configure: error: You must install the pciaccess module to build with udev
    [root@localhost libvirt-2.0.0]# yum install libpciaccess-devel
    configure: error: You must install the libyajl library & headers to compile libvirt
    [root@localhost libvirt-2.0.0]# yum install yajl-devel
    configure: error: You must install device-mapper-devel/libdevmapper >= 1.0.0 to compile libvirt
    [root@localhost libvirt-2.0.0]# yum install device-mapper-devel
    configure: error: xml2-config not found. Please check your libxml2 installation.
    yum -y install libxml2-devel

Error 2

No uninstall the system comes directly install the new version but the same

     #查看服务状态
        [root@192 libvirt-2.0.0]# systemctl status libvirtd
        ● libvirtd.service - Virtualization daemon
        
           Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
           Active: inactive (dead) since Sun 2019-04-21 16:48:37 CST; 25s ago
             Docs: man:libvirtd(8)
                   http://libvirt.org
          Process: 79857 ExecStart=/usr/sbin/libvirtd $LIBVIRTD_ARGS (code=exited, status=0/SUCCESS)
        Main PID: 79857 (code=exited, status=0/SUCCESS)
           CGroup: /system.slice/libvirtd.service
                   ├─2705 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelper
                   └─2706 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelper
        
        Apr 21 16:48:36 localhost.localdomain systemd[1]: Started Virtualization daemon.
        Apr 21 16:48:36 localhost.localdomain libvirtd[79857]: libvirt version: 2.0.0, package: 10.el7 (CentOS BuildSystem <http://bugs.centos.org>, 2016-11-12-02:15:12, c...entos.org)
        Apr 21 16:48:36 localhost.localdomain libvirtd[79857]: hostname: localhost.localdomain
        Apr 21 16:48:36 localhost.localdomain libvirtd[79857]: operation failed: network 'default' already exists with uuid 0c2459eb-2797-4a07-93af-6fb5857a6831
        Apr 21 16:48:37 localhost.localdomain dnsmasq[2705]: read /etc/hosts - 2 addresses
        Apr 21 16:48:37 localhost.localdomain dnsmasq[2705]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
        Apr 21 16:48:37 localhost.localdomain dnsmasq-dhcp[2705]: read /var/lib/libvirt/dnsmasq/default.hostsfile
        Apr 21 16:48:37 localhost.localdomain libvirtd[79857]: internal error: failed to initialize netcf
        Apr 21 16:48:37 localhost.localdomain libvirtd[79857]: Initialization of netcf state driver failed: internal error: failed to initialize netcf
        Apr 21 16:48:37 localhost.localdomain libvirtd[79857]: Driver state initialization failed
        Hint: Some lines were ellipsized, use -l to show in full.

Treatment to kill residual process

      [root@192 libvirt-2.0.0]# ps -ef|grep libvirt
        nobody     2705      1  0 12:20 ?        00:00:00 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelper
        root       2706   2705  0 12:20 ?        00:00:00 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshelper
        root      79999   3730  0 16:52 pts/0    00:00:00 grep --color=auto libvirt
        [root@192 libvirt-2.0.0]# kill -9 2705
        [root@192 libvirt-2.0.0]# ps -ef|grep libvirt
        root      80016   3730  0 16:53 pts/0    00:00:00 grep --color=auto libvirt

libvirt can work, but there are still error

Apr 21 16:53:45 localhost.localdomain libvirtd[80026]: operation failed: network 'default' already exists with uuid 0c2459eb-2797-4a07-93af-6fb5857a6831

View libvirt network configuration

    [root@192 libvirt-2.0.0]# virsh net-list --all 
    Name        State      Autostart     Persistent  
    --------------------------------------------------- 
    default      active     no                  no

# View xml network

[root@192 libvirt-2.0.0]# virsh net-dumpxml default

    <network>
      <name>default</name>
      <uuid>0c2459eb-2797-4a07-93af-6fb5857a6831</uuid>
      <forward mode='nat'>
        <nat>
          <port start='1024' end='65535'/>
        </nat>
      </forward>
      <bridge name='virbr0' stp='on' delay='0'/>
      <mac address='52:54:00:38:f8:e0'/>
      <ip address='192.168.122.1' netmask='255.255.255.0'>
        <dhcp>
          <range start='192.168.122.2' end='192.168.122.254'/>
        </dhcp>
      </ip>
    </network>

# Remove the net after the restart process encounters new problems libvirt

      Apr 21 19:18:52 localhost.localdomain libvirtd[82476]: Initialization of netcf state driver failed: internal error: failed to initialize netcf

After # close selinux, normal

     [root@localhost ~]# setenforce 0

# Network also rebuilt 2

       [root@localhost ~]# virsh net-list
        Name                 State      Autostart     Persistent
        ----------------------------------------------------------
        default              active     yes           yes

Error 3

    virsh: error while loading shared libraries: libvirt-lxc.so.0: cannot open shared object file: No such file or directory

This is because the dynamic database updates, no refresh, refresh needed

    bash-4.2# ldconfig
    bash-4.2# virsh --version
    2.0.0

Error 4

    [root@localhost libvirt-2.0.0]# virsh list
    error: failed to connect to the hypervisor
    error: no valid connection
    error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory

This is because the process did not start

    [root@localhost libvirt-2.0.0]# systemctl start libvirtd
    [root@localhost libvirt-2.0.0]# systemctl status libvirtd
    ● libvirtd.service - Virtualization daemon
       Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; disabled; vendor preset: enabled)
       Active: active (running) since Wed 2019-05-15 10:28:31 EDT; 5s ago
         Docs: man:libvirtd(8)
               http://libvirt.org
     Main PID: 81685 (libvirtd)
       CGroup: /system.slice/libvirtd.service
               ├─81685 /usr/sbin/libvirtd
               ├─81825 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshe...
               └─81826 /sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-script=/usr/libexec/libvirt_leaseshe...
    
    May 15 10:28:31 localhost.localdomain systemd[1]: Started Virtualization daemon.
    May 15 10:28:33 localhost.localdomain dnsmasq[81825]: started, version 2.76 cachesize 150
    May 15 10:28:33 localhost.localdomain dnsmasq[81825]: compile time options: IPv6 GNU-getopt DBus no-i18n IDN DHCP DHCPv6 no-Lua TFTP no...notify
    May 15 10:28:33 localhost.localdomain dnsmasq-dhcp[81825]: DHCP, IP range 192.168.122.2 -- 192.168.122.254, lease time 1h
    May 15 10:28:33 localhost.localdomain dnsmasq-dhcp[81825]: DHCP, sockets bound exclusively to interface virbr0
    May 15 10:28:33 localhost.localdomain dnsmasq[81825]: reading /etc/resolv.conf
    May 15 10:28:33 localhost.localdomain dnsmasq[81825]: using nameserver 192.168.233.2#53
    May 15 10:28:33 localhost.localdomain dnsmasq[81825]: read /etc/hosts - 2 addresses
    May 15 10:28:33 localhost.localdomain dnsmasq[81825]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 addresses
    May 15 10:28:33 localhost.localdomain dnsmasq-dhcp[81825]: read /var/lib/libvirt/dnsmasq/default.hostsfile
    Hint: Some lines were ellipsized, use -l to show in full.

4. Installation package src.rpm

As the author of the experimental environment was accidentally destroyed, in order to later problems can be compiled faster recovery environment, choose to use the jail chroot build environment inside a building, convenient backup and restore, but this way, make after the expiry, can not in a hosted environment make install, missing a lot of things, but do not want the environment outside the jail installed too many dependencies, otherwise it defeats the purpose, therefore, we decided to try src.rpm package to compile and install (here are in operation based chroot environment, the environment as ordinary operation mode, except that different paths yum install)

4.1. First, install the rpm package

bash-4.2# rpm -i libvirt-2.0.0-1.fc23.src.rpm
warning: libvirt-2.0.0-1.fc23.src.rpm: Header V4 DSA/SHA1 Signature, key ID de95bc1f: NOKEY
warning: user veillard does not exist - using root
warning: group veillard does not exist - using root
warning: user veillard does not exist - using root
warning: group veillard does not exist - using root

4.2. Rpmbuild directory into the implementation of the spec file

bash-4.2# cd /root/rpmbuild/
bash-4.2# ll
total 8
drwxr-xr-x. 2 root root 4096 Aug 11 06:52 SOURCES
drwxr-xr-x. 2 root root 4096 Aug 11 06:52 SPECS
bash-4.2# rpmbuild -bp S
SOURCES/ SPECS/   
bash-4.2# rpmbuild -bp SPECS/libvirt.spec
error: Failed build dependencies:
    xhtml1-dtds is needed by libvirt-2.0.0-1.el7.x86_64
    libxslt is needed by libvirt-2.0.0-1.el7.x86_64
    readline-devel is needed by libvirt-2.0.0-1.el7.x86_64
    ncurses-devel is needed by libvirt-2.0.0-1.el7.x86_64
    libtasn1-devel is needed by libvirt-2.0.0-1.el7.x86_64
    gnutls-devel is needed by libvirt-2.0.0-1.el7.x86_64
    libattr-devel is needed by libvirt-2.0.0-1.el7.x86_64
    libblkid-devel >= 2.17 is needed by libvirt-2.0.0-1.el7.x86_64
    augeas is needed by libvirt-2.0.0-1.el7.x86_64
    sanlock-devel >= 2.4 is needed by libvirt-2.0.0-1.el7.x86_64
    libpcap-devel is needed by libvirt-2.0.0-1.el7.x86_64
    libnl3-devel is needed by libvirt-2.0.0-1.el7.x86_64
    avahi-devel is needed by libvirt-2.0.0-1.el7.x86_64
    dnsmasq >= 2.41 is needed by libvirt-2.0.0-1.el7.x86_64
    radvd is needed by libvirt-2.0.0-1.el7.x86_64
    ebtables is needed by libvirt-2.0.0-1.el7.x86_64
    cyrus-sasl-devel is needed by libvirt-2.0.0-1.el7.x86_64
    polkit-devel >= 0.112 is needed by libvirt-2.0.0-1.el7.x86_64
    /usr/bin/qemu-img is needed by libvirt-2.0.0-1.el7.x86_64
    iscsi-initiator-utils is needed by libvirt-2.0.0-1.el7.x86_64
    parted-devel is needed by libvirt-2.0.0-1.el7.x86_64
    librados2-devel is needed by libvirt-2.0.0-1.el7.x86_64
    librbd1-devel is needed by libvirt-2.0.0-1.el7.x86_64
    glusterfs-api-devel >= 3.4.1 is needed by libvirt-2.0.0-1.el7.x86_64
    glusterfs-devel >= 3.4.1 is needed by libvirt-2.0.0-1.el7.x86_64
    libcap-ng-devel >= 0.5.0 is needed by libvirt-2.0.0-1.el7.x86_64
    fuse-devel >= 2.8.6 is needed by libvirt-2.0.0-1.el7.x86_64
    netcf-devel >= 0.2.2 is needed by libvirt-2.0.0-1.el7.x86_64
    libcurl-devel is needed by libvirt-2.0.0-1.el7.x86_64
    audit-libs-devel is needed by libvirt-2.0.0-1.el7.x86_64
    systemtap-sdt-devel is needed by libvirt-2.0.0-1.el7.x86_64
    nfs-utils is needed by libvirt-2.0.0-1.el7.x86_64
    dbus-devel is needed by libvirt-2.0.0-1.el7.x86_64
    scrub is needed by libvirt-2.0.0-1.el7.x86_64
    numad is needed by libvirt-2.0.0-1.el7.x86_64

4.3. One by one to repair dependence

yum --installroot=/home/user3/jail install -y xhtml1-dtds
yum --installroot=/home/user3/jail install -y  libxslt
yum --installroot=/home/user3/jail install -y readline-devel
yum --installroot=/home/user3/jail install -y libtasn1-devel
yum --installroot=/home/user3/jail install -y gnutls-devel
yum --installroot=/home/user3/jail install -y  libattr-devel
yum --installroot=/home/user3/jail install -y  libblkid-devel
yum --installroot=/home/user3/jail install -y augeas sanlock-devel sanlock
yum --installroot=/home/user3/jail install -y  libpcap-devel
...

Finally try again,

bash-4.2# rpmbuild -bp SPECS/libvirt.spec
error: Failed build dependencies:
    /usr/bin/qemu-img is needed by libvirt-2.0.0-1.el7.x86_64

Only this one, install the file can not solve for an unknown reason, and therefore access to information 3 , informed that this is not important, so you can modify the spec file, comment out this.

# From QEMU RPMs
# BuildRequires: /usr/bin/qemu-img

according to

 ./configure --prefix=/usr --localstatedir=/var  --sysconfdir=/etc --enable-debug=yes

--Enable-debug increase in the spec file configure at
compile

bash-4.2# rpmbuild -bb SPECS/libvirt.spec

If successful, it will generate

bash-4.2# ll RPMS/x86_64/
total 21284
-rw-r--r--. 1 root root     2716 Aug 11 07:47 libvirt-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root  4380632 Aug 11 07:47 libvirt-client-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   588380 Aug 11 07:47 libvirt-daemon-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root     3868 Aug 11 07:47 libvirt-daemon-config-network-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root     6356 Aug 11 07:47 libvirt-daemon-config-nwfilter-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root    47564 Aug 11 07:47 libvirt-daemon-driver-interface-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   669320 Aug 11 07:47 libvirt-daemon-driver-lxc-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   202876 Aug 11 07:47 libvirt-daemon-driver-network-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root    46672 Aug 11 07:47 libvirt-daemon-driver-nodedev-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root    71392 Aug 11 07:47 libvirt-daemon-driver-nwfilter-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   478708 Aug 11 07:47 libvirt-daemon-driver-qemu-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root    36804 Aug 11 07:47 libvirt-daemon-driver-secret-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   233904 Aug 11 07:47 libvirt-daemon-driver-storage-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root     1984 Aug 11 07:47 libvirt-daemon-kvm-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root     1956 Aug 11 07:47 libvirt-daemon-lxc-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root 10537260 Aug 11 07:47 libvirt-debuginfo-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   152084 Aug 11 07:47 libvirt-devel-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root  3781352 Aug 11 07:47 libvirt-docs-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root    52048 Aug 11 07:47 libvirt-lock-sanlock-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   334884 Aug 11 07:47 libvirt-login-shell-2.0.0-1.el7.x86_64.rpm
-rw-r--r--. 1 root root   123980 Aug 11 07:47 libvirt-nss-2.0.0-1.el7.x86_64.rpm

Then install all rpm packages

[root@localhost home]# rpm -i /home/user3/jail/root/rpmbuild/RPMS/x86_64/*

You may be prompted missing package, yum install it on the line

[root@localhost home]# yum  install -y augeas sanlock-devel sanlock

Start libvirtd process

[root@localhost home]# systemctl start libvirtd
[root@localhost home]# virsh list
Id    Name                           State
----------------------------------------------------

[root@localhost home]# virsh -v
2.0.0

Successful installation, see libvirtd path

[root@localhost home]# ps -ef|grep libvirtd
root      16193      1  0 16:04 ?        00:00:00 /usr/sbin/libvirtd
root      16407  21296  0 16:07 pts/0    00:00:00 grep --color=auto libvirtd

After testing, you can normally start the virtual machine

4.4. Error Handling

1. error can not start a virtual machine

[root@localhost user3]# virsh start vm_vbras_64
error: Failed to start domain vm_vbras_64
error: Failed to connect socket to '/var/run/libvirt/virtlogd-sock': Connection refused

Probably because there are no related processes to kill before reloading, what specifically do this thing has not been studied

[root@localhost user3]# ll /var/run/libvirt/virtlogd-sock
srw-rw-rw-. 1 root root 0 Aug 11 11:57 /var/run/libvirt/virtlogd-sock
[root@localhost user3]# systemctl stop libvirtd
[root@localhost user3]# rm /var/run/libvirt/virtlogd-sock
rm: remove socket ‘/var/run/libvirt/virtlogd-sock’? y
[root@localhost ~]# /usr/sbin/virtlogd --daemon
[root@localhost user3]# systemctl start libvirtd

And then re-run the virtual machine to normal

Updated: 20,190,911, update and maintain long-term ...

  1. Linux compiler installed qemu and the libvirt ↩

  2. Networking↩

  3. Re: [PATCH 20/27] libvirt.spec.in: remove most storage conditionals↩

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