KVM : Install VM Management Tools2023/04/26 |
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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 fedora38 /root total 28 dr-xr-x---. 3 root root 147 Apr 25 23:59 . dr-xr-xr-x. 18 root root 235 Apr 25 23:54 .. -rw-------. 1 root root 100 Apr 25 23:59 .bash_history -rw-r--r--. 1 root root 18 Jan 20 00:00 .bash_logout -rw-r--r--. 1 root root 141 Jan 20 00:00 .bash_profile -rw-r--r--. 1 root root 429 Jan 20 00:00 .bashrc -rw-r--r--. 1 root root 100 Jan 20 00:00 .cshrc drwx------. 2 root root 6 Apr 25 23:54 .ssh -rw-r--r--. 1 root root 129 Jan 20 00:00 .tcshrc -rw-------. 1 root root 901 Apr 25 23:57 anaconda-ks.cfg |
| [3] | [cat] a file in a virtual machine. |
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[root@dlp ~]# virt-cat -d fedora38 /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 ..... ..... |
| [4] | Edit a file in a virtual machine. |
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[root@dlp ~]# virt-edit -d fedora38 /etc/fstab # # /etc/fstab # Created by anaconda on Tue Apr 25 23:53:43 2023 # # 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. # /dev/mapper/fedora-root / xfs defaults 0 0 UUID=0cf11271-6767-4653-bd60-8fac9daa01a3 /boot xfs defaults 0 0 |
| [5] | Display disk usage in a virtual machine. |
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[root@dlp ~]# virt-df -d fedora38 Filesystem 1K-blocks Used Available Use% fedora38:/dev/sda2 983040 190732 792308 20% fedora38:/dev/fedora/root 15663104 1326256 14336848 9% |
| [6] | Mount a disk for a virtual machine. |
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[root@dlp ~]# guestmount -d fedora38 -i /media [root@dlp ~]# ll /media total 20 dr-xr-xr-x. 2 root root 6 Jan 19 09:00 afs lrwxrwxrwx. 1 root root 7 Jan 19 09:00 bin -> usr/bin dr-xr-xr-x. 5 root root 4096 Apr 26 08:56 boot drwxr-xr-x. 2 root root 6 Apr 26 08:53 dev drwxr-xr-x. 104 root root 8192 Apr 26 08:58 etc ..... ..... |
| [7] | Display the status of virtual machines. |
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[root@dlp ~]# virt-top
virt-top 09:35:04 - x86_64 4/4CPU 2399MHz 7925MB
2 domains, 1 active, 1 running, 0 sleeping, 0 paused, 1 inactive D:0 O:0 X:0
CPU: 0.0% Mem: 6144 MB (6144 MB by guests)
ID S RDRQ WRRQ RXBY TXBY %CPU %MEM TIME NAME
2 R 0.0 0.0 8:40.37 win2k22
- (fedora38)
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