I started a secure erase operation in Ubuntu using the disk utility (example below) and the machine locked up, I rebooted it, and now can no longer access the disk. Upon booting, the BIOS asks for the disk password, which I have no idea what it would be. I've tried empty and my linux user password, neither of which work. I suppose my hope is that the Disk utility uses some default password during erase, and that someone on here knows what that would be. One final note, I found this question which appears to have the answer I need, but unfortunately, I used the disk utility from the Live CD, thus, no logs.
I also tried using hdparm to unlock the drive, using the above passwords as well.
sudo hdparm -I /dev/sdb
yields:
...
Security:
Master password revision code = 65534
supported
enabled
locked
not frozen
not expired: security count
supported: enhanced erase
Security level high
564min for SECURITY ERASE UNIT. 564min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000c500c2e9cd0d
NAA : 5
IEEE OUI : 000c50
Unique ID : 0c2e9cd0d
Checksum: correct
sudo hdparm --user-master u --security-disable NULL /dev/sdb
yields:
/dev/sdb:
Issuing SECURITY_DISABLE command, password="", user=user
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 51 40 00 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 53 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sudo hdparm --user-master u --security-disable mypassword /dev/sdb
yields:
/dev/sdb:
Issuing SECURITY_DISABLE command, password="mypassword", user=user
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 51 40 00 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 53 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sudo hdparm --user-master m --security-disable mypassword /dev/sdb
yields:
/dev/sdb:
Issuing SECURITY_DISABLE command, password="mypassword", user=master
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 51 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 53 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sudo hdparm --user-master m --security-disable NULL /dev/sdb
yields:
/dev/sdb:
Issuing SECURITY_DISABLE command, password="", user=master
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 51 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 04 53 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
