用live usb安装centos！点击玩install centos 就出现这提示：
Starting Dracut Emergency Shell...

Warning:/dev/disk/by-label/LIVE does not exist

Warning:/dev/mapper/live-rw does not exist

Generating "/run/initramfs/rdsosreport.txt"

Entering emergency mode, Exit the shell to comtinue

type "jurnalctl" to view system logs.

You might want to save "/run/initramfs/rdsosrepoert.txt" to a USB stick or /boot

after mounting them and attach it to a bug report。

以前用live装系统都没这情况的！就这次有，fedora也是这样！当ubuntu就不会！在虚拟机安装也不会，就物理机安装就这样！

很明显是制作启动盘的方式不对
你怎么做启动盘的？