// VerifyKVMEnabled makes sure that the host OS is Ubuntu, and that the required
// packages are installed, and that the host CPU is able to support KVM.
func VerifyKVMEnabled() error {
if !utils.IsUbuntu() {
return fmt.Errorf(kvmNeedsUbuntu)
}
supported, err := IsKVMSupported()
if err != nil {
// Missing the kvm-ok package.
return fmt.Errorf(neetToInstallKVMOk)
}
if !supported {
return fmt.Errorf(kvmNotSupported)
}
// Check for other packages needed.
toInstall := []string{}
for _, pkg := range requiredPackages {
if !apt.IsPackageInstalled(pkg) {
toInstall = append(toInstall, pkg)
}
}
if len(toInstall) > 0 {
return fmt.Errorf(missingKVMDeps, strings.Join(toInstall, " "))
}
return nil
}
func (s *AptSuite) TestIsPackageNotInstalled(c *gc.C) {
s.patchDpkgQuery(c, false)
c.Assert(apt.IsPackageInstalled("foo-bar"), jc.IsFalse)
}