1. Misdescription

[sdb] No Caching mode page found
[sdb] Assuming drive cache:write through
....
Could not boot
/dev/root does not exist
Copy the code

2. When entering the installation interface, press E key (or Tab)

Vmlinuz initrd=initrd.img inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 rd.live.check quiet Vmlinuz initrd=initrd.img inst.stage2=hd:/dev/sdb4:/ quiet

Press CTRL + X (or Enter) again to continue installation.

Description:

Sdb4 is the mount name of your usb drive, which can be obtained from ls /dev/sd*.

Generally sDB1, because the hard disk is generally SDA, may be different, depending on the situation.

I install the process, encountered: SDB4, SDA4