KVM : Install VM Management Tools2023/11/15 |
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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 fedora39 /root total 28 dr-xr-x---. 3 root root 147 Nov 14 00:14 . dr-xr-xr-x. 18 root root 235 Nov 14 00:07 .. -rw-------. 1 root root 16 Nov 14 00:14 .bash_history -rw-r--r--. 1 root root 18 Jul 21 00:00 .bash_logout -rw-r--r--. 1 root root 141 Jul 21 00:00 .bash_profile -rw-r--r--. 1 root root 429 Jul 21 00:00 .bashrc -rw-r--r--. 1 root root 100 Jul 21 00:00 .cshrc drwx------. 2 root root 6 Nov 14 00:07 .ssh -rw-r--r--. 1 root root 129 Jul 21 00:00 .tcshrc -rw-------. 1 root root 865 Nov 14 00:11 anaconda-ks.cfg |
| [3] | [cat] a file in a virtual machine. |
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[root@dlp ~]# virt-cat -d fedora39 /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 fedora39 /etc/fstab # # /etc/fstab # Created by anaconda on Tue Nov 14 00:07:21 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. # UUID=c55317bd-79de-45ad-b58e-1842a027877c / xfs defaults 0 0 UUID=2928b52e-b869-4de8-982d-645fe089cc46 /boot xfs defaults 0 0 |
| [5] | Display disk usage in a virtual machine. |
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[root@dlp ~]# virt-df -d fedora39 Filesystem 1K-blocks Used Available Use% fedora39:/dev/sda2 983040 235356 747684 24% fedora39:/dev/fedora/root 15663104 1437976 14225128 10% |
| [6] | Mount a disk for a virtual machine. |
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[root@dlp ~]# guestmount -d fedora39 -i /media [root@dlp ~]# ll /media total 20 dr-xr-xr-x. 2 root root 6 Jul 21 09:00 afs lrwxrwxrwx. 1 root root 7 Jul 21 09:00 bin -> usr/bin dr-xr-xr-x. 5 root root 4096 Nov 14 09:10 boot drwxr-xr-x. 2 root root 6 Nov 14 09:07 dev drwxr-xr-x. 105 root root 8192 Nov 14 09:12 etc drwxr-xr-x. 3 root root 20 Nov 14 09:10 home ..... ..... |
| [7] | Display the status of virtual machines. |
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[root@dlp ~]# virt-top
virt-top 09:11:45 - x86_64 8/8CPU 2399MHz 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
- (fedora39)
- (win2k22)
.....
.....
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