jacks@Gen4:~$ sudo hdparm -s 1 -S 4 /dev/sdb
/dev/sdb:
Use of -s1 is VERY DANGEROUS.
This requires BIOS and kernel support to recognize/boot the drive.
Please supply the --yes-i-know-what-i-am-doing flag if you really want this.
Program aborted.
-s 是 conf 中的 poweron_standby
-s Enable/disable the power-on in standby feature, if supported by the drive. VERY DANGEROUS.
Do not use unless you are absolutely certain that both the system BIOS (or firmware) and the
operating system kernel (Linux >= 2.6.22) support …hdparm ×1