tetra12 opened a new issue #5350:
URL: https://github.com/apache/cloudstack/issues/5350
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##### ISSUE TYPE
<!-- Pick one below and delete the rest -->
* Improvement Request
##### COMPONENT NAME
<!--
Categorize the issue, e.g. API, VR, VPN, UI, etc.
-->
~~~
Agent, Core
~~~
##### CLOUDSTACK VERSION
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New line separated list of affected versions, commit ID for issues on main
branch.
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4.16.0-Snapshot
~~~
##### CONFIGURATION
<!--
Information about the configuration if relevant, e.g. basic network,
advanced networking, etc. N/A otherwise
-->
Built the latest qemu version from source
##### OS / ENVIRONMENT
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Information about the environment if relevant, N/A otherwise
-->
Ubuntu 20.04 and newer
##### SUMMARY
<!-- Explain the problem/feature briefly -->
CS Agent requires `qemu-kvm` installation. However, newer versions of `qemu`
have dropped dependency on `qemu-kvm` in favor of `qemu-system-x86`.
If I build and install the latest `qemu` from source, I'm unable to install
the CloudStack Agent due to its dependency on `qemu-kvm`, which was dropped in
recent releases of `qemu`.
Thus, I can't use the latest release of `qemu`, since trying to `apt install
-y qemu-kvm` yields in the following error :
```
bku@ttx0:~/work/qemu/build$ sudo apt install -y qemu-kvm
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting 'qemu-system-x86' instead of 'qemu-kvm'
qemu-system-x86 is already the newest version (1:5.2+dfsg-9ubuntu3.1).
qemu-system-x86 set to manually installed.
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
cloudstack-agent : Depends: qemu-kvm (>= 2.5)
Depends: ebtables but it is not going to be installed
Depends: vlan but it is not going to be installed
Depends: ipset but it is not going to be installed
Depends: python3-libvirt but it is not going to be
installed
Depends: ethtool but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or
specify a solution).
```
##### STEPS TO REPRODUCE
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test-case. Use Screenshots if accurate.
For new features, show how the feature would be used.
-->
<!-- Paste example playbooks or commands between quotes below -->
~~~
1. Clone qemu repository
2. Build and install qemu from master
3. Install a stock libvirt for Ubuntu
3. Validate qemu and virsh installation: `qemu-img --version` , `libvirtd
--version`
4. Try to install CloudStack Agent on the node
5. Observe error installing the CS agent
~~~
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##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
~~~
Agent works with the latest qemu and libvirt
~~~
##### ACTUAL RESULTS
<!-- What actually happened? -->
<!-- Paste verbatim command output between quotes below -->
~~~
Fail to install CS Agent on the node with the latest `qemu` is installed
~~~
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