http://nachostechbits.com/2018/03/16/unbootable-ssd/
网上这个人的ssd是：
sa2bw120g3a
(我的 ssd)
sudo hdparm -I /dev/sdc:
显示
INTEL SSDSA2CW120G3
Serial Number: BAD_CTX 00000166
....
Security:
not locked
frozen
How to: Fix an unbootable Intel SSD suffering from the 8MB bug
。。。The 8MB bug is caused by an unexpected power loss under specific conditions 。。。。
（意外断电引起的）
That’s right, all data on the drive is permanently lost. (这样修改后ssd可以工作了，但是数据永远没了！)
Mhdd: