文章目录
- 1. 创建目录
- 2. 上传镜像并改名
- 3. 创建虚拟磁盘qcow2
- 4. 登录eve网页
- 5. 查找lab UUID和虚拟机编号
- 6. 将系统提交成模板
- 7. 压缩镜像（可选）
1. 创建目录
root@eve-ng:/opt/unetlab/addons/qemu
2. 上传镜像并改名
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
total 2213072
drwxr-xr-x 2 root root 4096 Aug 5 10:54 ./
drwxr-xr-x 47 root root 4096 Aug 5 09:14 ../
-rw-r--r-- 1 root root 2265972736 Aug 5 10:57 Rocky-8.6-x86_64-minimal.iso
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
total 2213072
drwxr-xr-x 2 root root 4096 Aug 5 10:57 ./
drwxr-xr-x 47 root root 4096 Aug 5 09:14 ../
-rw-r--r-- 1 root root 2265972736 Aug 5 10:57 cdrom.iso
3. 创建虚拟磁盘qcow2
qcow2文件大小决定了虚拟机最大的磁盘使用量，根据实际使用来占用磁盘空间
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
Formatting 'virtioa.qcow2', fmt=qcow2 size=32212254720 cluster_size=65536 lazy_refcounts=off refcount_bits=16
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
total 2213072
drwxr-xr-x 2 root root 4096 Aug 5 10:57 ./
drwxr-xr-x 47 root root 4096 Aug 5 09:14 ../
-rw-r--r-- 1 root root 2265972736 Aug 5 10:57 cdrom.iso
-rw-r--r-- 1 root root 197088 Aug 5 10:54 virtioa.qcow2
4. 登录eve网页
- 新建node，并选择linux-Rocky-8，建议新建lab只建要自定义的镜像node，方便后续查询编号。
- 开机进行系统安装。
- 安装完成，重启之前，删除cdrom.ios
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
5. 查找lab UUID和虚拟机编号
POD ID:在首页上方第二个manaement的user management中查看pod
lab UUID获取：点击左侧的LAB DETAILS，ID: 0bb92614-1544-4090-b631-b453fe512320
虚拟机编号：右键点击linux主机node后，主机名（）里面内容就是虚拟机编号，例如Linux（1）
6. 将系统提交成模板
根据获取到的UUID和虚拟机编号进入运行中的实验目录找到镜像，目录：
/opt/unetlab/tmp/POD ID/UUID/虚拟机编号
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
root@eve-ng:/opt/unetlab/tmp/0/0bb92614-1544-4090-b631-b453fe512320/1
total 2525984
drwxrwsr-x 5 root unl 4096 Aug 5 11:00 ./
drwxrwsr-x 3 root unl 4096 Aug 5 11:00 ../
drwxr-sr-x 3 root root 4096 Jul 12 12:33 dev/
drwxr-xr-x 5 root root 4096 Jun 15 16:04 jail/
lrwxrwxrwx 1 root root 8 May 3 07:46 lib -> jail/lib/
lrwxrwxrwx 1 root root 10 May 3 07:46 lib64 -> jail/lib64/
drwxr-sr-x 14 root root 4096 Jun 15 16:09 opt/
-rw-rw-r-- 1 root unl 0 Aug 5 11:00 .prepared
lrwxrwxrwx 1 root root 8 May 3 07:46 usr -> jail/usr/
-rw-r--r-- 1 root unl 2586640384 Aug 5 11:25 virtioa.qcow2
-rw-rw-r-- 1 root unl 112 Aug 5 11:25 wrapper.txt
root@eve-ng:/opt/unetlab/tmp/0/0bb92614-1544-4090-b631-b453fe512320/1
Image committed.
7. 压缩镜像（可选）
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
[ 0.1] Create overlay file in /tmp to protect source disk
[ 0.2] Examine source disk
◓ 25% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒═══════════════════════════════════════════════════════════════════════════════════⟧ --:--
100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ 00:00
[ 77.4] Fill free space in /dev/sda1 with zero
[ 78.1] Clearing Linux swap on /dev/sda2
[ 79.6] Fill free space in /dev/sda3 with zero
100% ⟦▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒⟧ 00:00
[ 524.7] Copy to destination and make sparse
[1273.0] Sparsify operation completed with no errors.
virt-sparsify: Before deleting the old disk, carefully check that the
target disk boots and works correctly.
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
total 3.4G
drwxr-xr-x 2 root root 4.0K Aug 5 11:40 ./
drwxr-xr-x 47 root root 4.0K Aug 5 09:14 ../
-rw-r--r-- 1 root root 964M Aug 5 11:52 compressedvirtioa.qcow2
-rw-r--r-- 1 root root 2.5G Aug 5 11:29 virtioa.qcow2
root@eve-ng:/opt/unetlab/addons/qemu/linux-rocky-8
参考：https://www.eve-ng.net/index.php/documentation/howtos/howto-create-own-linux-host-image/
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