scsi 0:0:0:0 alua: not attached 1, wait a while, let the system execute to the command line
that appears # , check the installation disk path, ls /dev/sd*; mine is /dev/sdb4
2. Start the installation. When entering the installation interface and displaying the interface of Install CentOS 7, select the second option, press e to edit the startup item, and set vmlinuz initrd=initrd.imginst.stage2=hd:LABEL=CentOS\x207\ x20x86_64 rd.live.check quiet changed to: vmlinuz initrd=initrd.img inst.stage2=hd:/dev/sdb4 video=eDP-1:d quite, then ctrl+x to start
scsi 0:0:0:0 alua: not attached 1, wait a while, let the system execute to the command line
that appears # , check the installation disk path, ls /dev/sd*; mine is /dev/sdb4
2. Start the installation. When entering the installation interface and displaying the interface of Install CentOS 7, select the second option, press e to edit the startup item, and set vmlinuz initrd=initrd.imginst.stage2=hd:LABEL=CentOS\x207\ x20x86_64 rd.live.check quiet changed to: vmlinuz initrd=initrd.img inst.stage2=hd:/dev/sdb4 video=eDP-1:d quite, then ctrl+x to start