ubuntu下kvm 命令行安装64位ubuntu报"Couldn't find hvm kernel for Ubuntu tree."的问题分析

服务器 2024/12/24 佚名

3 2 1

帝王谷资源网 Design By www.wdxyy.com

1.安装ubuntu时使用的virt-install的配置：

virt-install --name test4 --ram 1024 --disk path=/data/01_ubuntu/ubuntu4.img,size=6 --vcpus 1 --hvm --os-type linux --network network=default --os-variant ubuntuquantal --graphics none --console pty,target_type=serial --location /data/00_osfile/ubuntu-16.04.1-server-amd64.iso --extra-args 'console=ttyS0,115200n8 serial'

报错如下：

ERROR Couldn't find hvm kernel for Ubuntu tree.
Domain installation does not appear to have been successful.

通过查资料发现，virt-install可以开debug模式的，加入--debug选项即可

2.virt-install的debug模式得到的结果：

[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (urlfetcher:268) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.xPL9y1/current/images/MANIFEST
[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (urlfetcher:89) Fetching URI: /var/lib/libvirt/boot/virtinstmnt.xPL9y1/install/netboot/version.info
Retrieving file version.info... | 58 B 00:00:00 
[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (urlfetcher:1164) Didn't find any known codename in the URL string
[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (urlfetcher:511) Detected distro name=Ubuntu osvariant=linux
[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (urlfetcher:268) local hasFile: Couldn't find /var/lib/libvirt/boot/virtinstmnt.xPL9y1/install/netboot/ubuntu-installer/i386/linux

这里就可以看出问题了，明明是64位的操作系统，为什么去找./install/netboot/ubuntu-install/i386/linux的路径

我们去看看iso文件中正确的路径是什么：

[root@11.102 01_ubuntu]$mount /data/00_osfile/ubuntu-16.04.1-server-amd64.iso /mnt
mount: /dev/loop2 is write-protected, mounting read-only
[root@11.102 01_ubuntu]$ls /mnt/install/netboot/ubuntu-installer/amd64/linux 
/mnt/install/netboot/ubuntu-installer/amd64/linux

基本确定，如果将路径的i386改为amd64，virt-install安装就没有问题。

debug模式剩余的log：

[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (urlfetcher:320) Cleaning up mount at /var/lib/libvirt/boot/virtinstmnt.xPL9y1
[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (cli:305) File "/usr/share/virt-manager/virt-install", line 1077, in <module>
sys.exit(main())
File "/usr/share/virt-manager/virt-install", line 1071, in main
start_install(guest, continue_inst, options)
File "/usr/share/virt-manager/virt-install", line 775, in start_install
fail(e, do_exit=False)
File "/usr/share/virt-manager/virtinst/cli.py", line 305, in fail
logging.debug("".join(traceback.format_stack()))
[Wed, 30 Nov 2016 11:16:07 virt-install 26900] ERROR (cli:306) Couldn't find hvm kernel for Ubuntu tree.
[Wed, 30 Nov 2016 11:16:07 virt-install 26900] DEBUG (cli:308) 
Traceback (most recent call last):
File "/usr/share/virt-manager/virt-install", line 747, in start_install
dom = guest.start_install(meter=meter, noboot=options.noreboot)
File "/usr/share/virt-manager/virtinst/guest.py", line 491, in start_install
self._prepare_install(meter, dry)
File "/usr/share/virt-manager/virtinst/guest.py", line 304, in _prepare_install
self.installer.prepare(self, meter)
File "/usr/share/virt-manager/virtinst/installer.py", line 200, in prepare
self._prepare(guest, meter)
File "/usr/share/virt-manager/virtinst/distroinstaller.py", line 451, in _prepare
self._prepare_kernel_url(guest, fetcher)
File "/usr/share/virt-manager/virtinst/distroinstaller.py", line 360, in _prepare_kernel_url
kernel, initrd, args = store.acquireKernel(guest)
File "/usr/share/virt-manager/virtinst/urlfetcher.py", line 603, in acquireKernel
{"distro": self.name, "type" : self.type})
RuntimeError: Couldn't find hvm kernel for Ubuntu tree.

3.修改virt-manager代码：

通过上面的报错，发现virt-manager使用python写的！正好想看什么源码来自，这个正好！

通过对virt-manager这一项目一步步debug，找到问题：

[root@11.102 ~]$grep -n -A22 "class DebianDistro" /usr/share/virt-manager/virtinst/urlfetcher.py
1076:class DebianDistro(Distro):
1077- # ex. http://ftp.egr.msu.edu/debian/dists/sarge/main/installer-i386/
1078- # daily builds: http://d-i.debian.org/daily-images/amd64/
1079- name = "Debian"
1080- urldistro = "debian"
1081- os_variant = "linux"
1082-
1083- def __init__(self, *args, **kwargs):
1084- Distro.__init__(self, *args, **kwargs)
1085-
1086- # Pull the tree's arch out of the URL text
1087- self._treeArch = 'i386'
1088- for pattern in ["^.*/installer-(\w+)/",
1089- "^.*/daily-images/(\w+)/"]:
1090- arch = re.findall(pattern, self.uri)
1091- if arch:
1092- self._treeArch = arch[0]
1093- break
1094-
1095- self._url_prefix = 'current/images'
1096- self._installer_dirname = self.name.lower() + "-installer"
1097- self._set_media_paths()

发现基于Debian的系统，__init__方法中self._treeArch初始化时是i386，估计是virt-manager读取ubuntu的iso文件时，出了什么问题，没读出该系统是x86_64类型，将该值改为amd64,就可以了。

再次运行virt-install，成功进入ubuntu安装界面！

附：CentOS命令行使用KVM安装64位ubuntu报"Couldn't find hvm kernel for Ubuntu tree."的解决办法

grep -n -A21 'class DebianDistro' /usr/lib/python2.6/site-packages/virtinst/OSDistro.py 命令可以查看DebianDistro类的__init__方法

[root@2 virtinst]$grep -n -A21 'class DebianDistro' /usr/lib/python2.6/site-packages/virtinst/OSDistro.py
892:class DebianDistro(Distro):
893- # ex. http://ftp.egr.msu.edu/debian/dists/sarge/main/installer-i386/
894- # daily builds: http://people.debian.org/~joeyh/d-i/
895-
896- name = "Debian"
897- os_type = "linux"
898-
899- def __init__(self, uri, arch, vmtype=None, scratchdir=None):
900- Distro.__init__(self, uri, arch, vmtype, scratchdir)
901- if uri.count("installer-i386"):
902- self._treeArch = "i386"
903- elif uri.count("installer-amd64"):
904- self._treeArch = "amd64"
905- else:
906- self._treeArch = "i386"
907-
908- if re.match(r'i[4-9]86', arch):
909- self.arch = 'i386'
910-
911- self._installer_name = self.name.lower() + "-" + "installer"
912- self._prefix = 'current/images'
913- self._set_media_paths()

改变__init__方法里的else：条件下面的一行，将"i386"改为"amd64"即可

- self._treeArch = 'i386'
+ self._treeArch = 'amd64'

kvm,kernel,kvm命令行

标签：

kvm,kernel,kvm命令行

帝王谷资源网 Design By www.wdxyy.com

广告合作：本站广告合作请联系QQ：858582 申请时备注：广告合作（否则不回）
免责声明：本站文章均来自网站采集或用户投稿，网站不提供任何软件下载或自行开发的软件！如有用户或公司发现本站内容信息存在侵权行为，请邮件告知！ 858582#qq.com

帝王谷资源网 Design By www.wdxyy.com

评论“ubuntu下kvm 命令行安装64位ubuntu报"Couldn't find hvm kernel for Ubuntu tree."的问题分析”

暂无评论...

www.wdxyy.com 帝王谷资源网

139,976互联网资源

144,792高清电影

21,817无损音乐

631,128技术资源

ubuntu下kvm 命令行安装64位ubuntu报"Couldn't find hvm kernel for Ubuntu tree."的问题分析

kvm,kernel,kvm命令行

linux下配置yum源方法详解

Nginx配置文件（nginx.conf）配置详解（总结）

评论“ubuntu下kvm 命令行安装64位ubuntu报"Couldn't find hvm kernel for Ubuntu tree."的问题分析”

稳了！魔兽国服回归的3条重磅消息！官宣时间再确认！

更新日志

友情链接