KVM : Install VM Management Tools2025/11/10 |
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Install useful tools for virtual machine management. |
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| [1] | Install required packages. |
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[root@dlp ~]# dnf -y install guestfs-tools virt-top
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| [2] | [ls] a directory in a virtual machine. |
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[root@dlp ~]# virt-ls -l -d fedora43 /root total 24 dr-xr-x---. 3 root root 126 Nov 10 00:32 . dr-xr-xr-x. 18 root root 235 Nov 10 00:32 .. -rw-r--r--. 1 root root 18 Jul 25 00:00 .bash_logout -rw-r--r--. 1 root root 144 Jul 25 00:00 .bash_profile -rw-r--r--. 1 root root 575 Jul 25 00:00 .bashrc -rw-r--r--. 1 root root 100 Jul 25 00:00 .cshrc drwx------. 2 root root 6 Nov 10 00:30 .ssh -rw-r--r--. 1 root root 129 Jul 25 00:00 .tcshrc -rw-------. 1 root root 941 Nov 10 00:32 anaconda-ks.cfg |
| [3] | [cat] a file in a virtual machine. |
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[root@dlp ~]# virt-cat -d fedora43 /etc/passwd root:x:0:0:Super User:/root:/bin/bash bin:x:1:1:bin:/bin:/usr/sbin/nologin daemon:x:2:2:daemon:/sbin:/usr/sbin/nologin adm:x:3:4:adm:/var/adm:/usr/sbin/nologin lp:x:4:7:lp:/var/spool/lpd:/usr/sbin/nologin sync:x:5:0:sync:/sbin:/bin/sync shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown halt:x:7:0:halt:/sbin:/sbin/halt mail:x:8:12:mail:/var/spool/mail:/usr/sbin/nologin operator:x:11:0:operator:/root:/usr/sbin/nologin games:x:12:100:games:/usr/games:/usr/sbin/nologin ..... ..... |
| [4] | Edit a file in a virtual machine. |
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[root@dlp ~]# virt-edit -d fedora43 /etc/fstab # # /etc/fstab # Created by anaconda on Tue Nov 5 00:12:10 2024 # # Accessible filesystems, by reference, are maintained under '/dev/disk/'. # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info. # # After editing this file, run 'systemctl daemon-reload' to update systemd # units generated from this file. # UUID=76659839-7ade-40bd-b583-c9e74df1eaa6 / xfs defaults 0 0 UUID=f9de0525-8178-40e1-89cf-855f70e98f05 /boot xfs defaults 0 0 |
| [5] | Display disk usage in a virtual machine. |
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[root@dlp ~]# virt-df -d fedora43 Filesystem 1K-blocks Used Available Use% fedora43:/dev/sda2 2031616 318040 1713576 16% fedora43:/dev/fedora/root 15663104 1876812 13786292 12% |
| [6] | Mount a disk for a virtual machine. |
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[root@dlp ~]# guestmount -d fedora43 -i /media [root@dlp ~]# ll /media total 20 dr-xr-xr-x. 2 root root 6 Jul 30 09:00 afs lrwxrwxrwx. 1 root root 7 Jul 30 09:00 bin -> usr/bin dr-xr-xr-x. 5 root root 4096 Nov 10 09:32 boot drwxr-xr-x. 2 root root 6 Nov 10 09:28 dev drwxr-xr-x. 119 root root 8192 Nov 10 09:34 etc drwxr-xr-x. 3 root root 20 Nov 10 09:32 home ..... ..... |
| [7] | Display the status of virtual machines. |
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[root@dlp ~]# virt-top
virt-top 10:02:41 - x86_64 8/8CPU 2400MHz 15976MB
2 domains, 0 active, 0 running, 0 sleeping, 0 paused, 2 inactive D:0 O:0 X:0
CPU: 0.0% Mem: 0 MB (0 MB by guests)
ID S RDRQ WRRQ RXBY TXBY %CPU %MEM TIME NAME
- (Win2k25)
- (fedora43)
.....
.....
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