KVM : Install VM Management Tools2022/11/22 |
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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 fedora37 /root total 28 dr-xr-x---. 2 root root 135 Nov 21 06:51 . dr-xr-xr-x. 18 root root 235 Nov 21 06:45 .. -rw-------. 1 root root 16 Nov 21 06:51 .bash_history -rw-r--r--. 1 root root 18 Jul 23 01:15 .bash_logout -rw-r--r--. 1 root root 141 Jul 23 01:15 .bash_profile -rw-r--r--. 1 root root 429 Jul 23 01:15 .bashrc -rw-r--r--. 1 root root 100 Jul 23 01:15 .cshrc -rw-r--r--. 1 root root 129 Jul 23 01:15 .tcshrc -rw-------. 1 root root 887 Nov 21 06:48 anaconda-ks.cfg |
| [3] | cat] a file in a virtual machine. |
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[root@dlp ~]# virt-cat -d fedora37 /etc/passwd root:x:0:0:root:/root:/bin/bash bin:x:1:1:bin:/bin:/sbin/nologin daemon:x:2:2:daemon:/sbin:/sbin/nologin adm:x:3:4:adm:/var/adm:/sbin/nologin lp:x:4:7:lp:/var/spool/lpd:/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:/sbin/nologin ..... ..... |
| [4] | Edit a file in a virtual machine. |
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[root@dlp ~]# virt-edit -d fedora37 /etc/fstab # # /etc/fstab # Created by anaconda on Mon Nov 21 06:44:58 2022 # # 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=9659f2e4-0d20-42fd-a3cf-b6882e2a72e5 /boot xfs defaults 0 0 |
| [5] | Display disk usage in a virtual machine. |
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[root@dlp ~]# virt-df -d fedora37 Filesystem 1K-blocks Used Available Use% fedora37:/dev/sda2 983040 179712 803328 19% fedora37:/dev/fedora/root 15663104 1365096 14298008 9% |
| [6] | Mount a disk for a virtual machine. |
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[root@dlp ~]# guestmount -d fedora37 -i /media [root@dlp ~]# ll /media total 20 dr-xr-xr-x. 2 root root 6 Aug 9 22:27 afs lrwxrwxrwx. 1 root root 7 Aug 9 22:27 bin -> usr/bin dr-xr-xr-x. 5 root root 4096 Nov 21 15:47 boot drwxr-xr-x. 2 root root 6 Nov 21 15:44 dev drwxr-xr-x. 102 root root 8192 Nov 21 15:49 etc ..... ..... |
| [7] | Display the status of virtual machines. |
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[root@dlp ~]# virt-top
virt-top 16:40:07 - x86_64 4/4CPU 2399MHz 7941MB
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
- (fedora37)
- (win2k22)
.....
.....
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