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KVM Virsh Console Access On CentOS 7
Enable Serial Console on the Virtual Machine
1. console=ttyS0 추가
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 crashkernel=auto rhgb quiet console=ttyS0
vi /etc/default/grub
$ vi /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0 crashkernel=auto rhgb quiet console=ttyS0"
GRUB_DISABLE_RECOVERY="true"
2. grub2-mkconfig 명령어 실행
grub2-mkconfig -o /boot/grub2/grub.cfg
$ grub2-mkconfig -o /boot/grub2/grub.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-514.26.2.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-514.26.2.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-514.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-514.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-5de8b61aa93e42d1ad9231d4b5035ed7
Found initrd image: /boot/initramfs-0-rescue-5de8b61aa93e42d1ad9231d4b5035ed7.img
done
Enable Serial Console Access on the KVM host - 1
수정
<console type='pty' tty='/dev/pts/6'>
<source path='/dev/pts/6'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
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virsh edit ANSIBLEmn01
$ virsh edit ANSIBLEmn01
<console type='pty'>
<target type='serial' port='0'/>
</console>
...
<console type='pty' tty='/dev/pts/6'>
<source path='/dev/pts/6'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
</console>
2. VM 서버 다운
virsh shutdown ANSIBLEmn01
$ virsh shutdown ANSIBLEmn01
도메인 ANSIBLEmn01가 종료됨
3. VM 서버 기동
virsh start ANSIBLEmn01
$ virsh start ANSIBLEmn01
도메인 ANSIBLEmn01가 시작됨
4. 콘솔 접속
virsh console ANSIBLEmn01
$ virsh console ANSIBLEmn01
도메인 ANSIBLEmn01에 연결되었습니다
Escape character is ^]
CentOS Linux 7 (Core)
Kernel 3.10.0-514.26.2.el7.x86_64 on an x86_64
ANSIBLEmn01 login: root
암호:
Last login: Thu Aug 3 17:04:06 from 10.20.12.88
[root@ANSIBLEmn01 ~]#
Enable Serial Console Access on the KVM host - 2
systemctl start serial-getty@ttyS0
systemctl enable serial-getty@ttyS0
참고URL
- https://linuxadmin.io/enable-virsh-console-kvm/
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