系统运维
libguestfs修改qcow2镜像文件
apt install libguestfs-tools?
# guestfish -a /home/lsz/centos7.qcow2
welcome to guestfish, the guest filesystem shell for
editing virtual machine filesystems and disk images.
type: \\\’help\\\’ for help on commands
? \\\’man\\\’ to read the manual
? \\\’quit\\\’ to quit the shell
><fs> run
100% 00:00
><fs> list-filesystems
/dev/sda1: xfs
/dev/centos/root: xfs
/dev/centos/swap: swap
><fs> mount /dev/centos/root /
><fs> cat /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
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
ftp:x:14:50:ftp user:/var/ftp:/sbin/nologin
nobody:x:99:99:nobody:/:/sbin/nologin
systemd-network:x:192:192:systemd network management:/:/sbin/nologin
dbus:x:81:81:system message bus:/:/sbin/nologin
polkitd:x:999:998:user for polkitd:/:/sbin/nologin
sshd:x:74:74:privilege-separated ssh:/var/empty/sshd:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
><fs> unmount /
asav增加console:
><fs> mount /dev/sda2 /?
><fs> touch /use_ttys0
><fs> unmount /
><fs> exit
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