Qemu 2.10 is the latest release of the popular open-source emulator that can run various operating systems on a single machine. With CentOS 7, users can easily install and configure Qemu 2.10 to run virtual machines on their server.
One of the main advantages of Qemu 2.10 is its ability to support a wide range of guest operating systems, including Windows, Linux, Solaris, and BSD. This makes it an ideal choice for developers who need to test their software on different platforms or for users who need to run legacy applications on modern operating systems.
Qemu 2.10 also includes several new features and improvements, such as the ability to run nested virtualization for improved performance, support for encrypted virtual disks, and enhanced networking options. Additionally, Qemu 2.10 now supports the SPICE remote display protocol, which provides faster and more responsive graphical user interfaces (GUIs) for virtual machines.
Setting up Qemu 2.10 on CentOS 7 is a straightforward process. Users can install the necessary packages using the default package manager, yum. After installation, the Qemu command line interface (CLI) can be used to create, manage, and monitor virtual machines. The virt-manager GUI tool can also be used for a more user-friendly interface.
Overall, Qemu 2.10 is a powerful and flexible emulator that can provide users with a wide range of benefits. Whether you need to test your software across multiple platforms or require additional security and networking features for your virtual environments, Qemu 2.10 has you covered.
Все последние пакеты доступны в репозитории https://copr.fedorainfracloud.org/coprs/jmliger/virt7-upstream/
Нам нужно обновить пакеты:
libcacard-ev qemu-img-ev qemu-kvm-common-ev qemu-kvm-ev qemu-kvm-tools-ev
Вышло официальное обновление до версии QEMU 2.10
Установите репозиторий:
yum install centos-release-qemu-ev
И выполним обновление:
yum update yum install epel-release yum install qemu-img-ev qemu-kvm-common-ev qemu-kvm-ev qemu-kvm-tools-ev
Ссылки на информацию об изменении в версии QEMU 2.10:
http://wiki.qemu.org/ChangeLog/2.10
Error
yum install qemu-img-ev qemu-kvm-common-ev qemu-kvm-ev qemu-kvm-tools-ev
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.yandex.ru
* elrepo: ftp.colocall.net
* epel: fedora-mirror01.rbc.ru
* extras: mirror.corbina.net
* updates: mirror.corbina.net
http://mirror.centos.org/altarch/7/virt/x86_64/kvm-common/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Trying other mirror.
To address this issue please refer to the below wiki article
https://wiki.centos.org/yum-errors
If above article doesn't help to resolve this issue please use https://bugs.centos.org/.
One of the configured repositories failed (CentOS-7 - QEMU EV),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:
1. Contact the upstream for the repository and get them to fix the problem.
2. Reconfigure the baseurl/etc. for the repository, to point to a working
upstream. This is most often useful if you are using a newer
distribution release than is supported by the repository (and the
packages for the previous distribution release still work).
3. Run the command with the repository temporarily disabled
yum --disablerepo=centos-qemu-ev ...
4. Disable the repository permanently, so yum won't use it by default. Yum
will then just ignore the repository until you permanently enable it
again or use --enablerepo for temporary usage:
yum-config-manager --disable centos-qemu-ev
or
subscription-manager repos --disable=centos-qemu-ev
5. Configure the failing repository to be skipped, if it is unavailable.
Note that yum will try to contact the repo. when it runs most commands,
so will have to try and fail each time (and thus. yum will be be much
slower). If it is a very temporary problem though, this is often a nice
compromise:
yum-config-manager --save --setopt=centos-qemu-ev.skip_if_unavailable=true
failure: repodata/repomd.xml from centos-qemu-ev: [Errno 256] No more mirrors to try.
http://mirror.centos.org/altarch/7/virt/x86_64/kvm-common/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
Исправить
nano /etc/yum.repos.d/CentOS-QEMU-EV.repo
Edit add
baseurl=http://mirror.centos.org/centos/$releasever/virt/$basearch/kvm-common/
Example
# CentOS-QEMU-EV.repo # # Please see http://wiki.centos.org/SpecialInterestGroup/Virtualization for more # information [centos-qemu-ev] name=CentOS-$releasever - QEMU EV #baseurl=http://mirror.centos.org/$contentdir/$releasever/virt/$basearch/kvm-common/ baseurl=http://mirror.centos.org/centos/$releasever/virt/$basearch/kvm-common/ gpgcheck=1 enabled=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-Virtualization [centos-qemu-ev-test] name=CentOS-$releasever - QEMU EV Testing baseurl=http://buildlogs.centos.org/centos/$releasever/virt/$basearch/kvm-common/ gpgcheck=0 enabled=0
