Content Comparison

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1. Download RESCUE64.img.gz image from the sedutil page
2. Decompress the Rescue system
   1. Linux: gunzip RESCUE64.img.gz
   2. Windows: Use 7-Zip
3. Transfer the Rescue image to the USB stick
   1. Linux: dd if=RESCUE64.img of=/dev/sdX
   2. Windows: Use Win32DiskImager to write the image to the USB stick
4. Boot the USB stick.
5. You will see the login prompt, enter "root" there is no password and you will get a root shell prompt

6. Check for TCG Enterprise compliant drives using

   Code Block
   sedutil-cli --scan

   Output will look like this

   Code Block
   Scanning for Opal compliant disks /dev/sda    E SAS ST600MP0015      NT03

7. Check Locking status of the drive using 
   

   Code Block
   sedutil-cli --query

   Output will look like this

   Code Block

   /dev/sda SAS ST600MP0015      NT03 SEAGATE TPer function (0x0001)     ACKNAK = N, ASYNC = N. BufferManagement = N, comIDManagement  = N, Streaming = Y, SYNC = Y Locking function (0x0002)     Locked = Y, LockingEnabled = Y, LockingSupported = Y, MBRDone = N, MBREnabled = N, MediaEncrypt = Y Geometry function (0x0003)     Align = N, Alignment Granularity = 1 (528), Logical Block size = 528, Lowest Aligned LBA = 0 Enterprise function (0x0100)     Range crossing = Y, Base comID = 0x07fe, comIDs = 2

   If output shows "Locked = Y" then this drive shall be unlockedNote

8. Note PSID on the drive label
   
Image Modified
Note that every drive has its own unique PSID!

9. With the matching PSID the drive can be unlocked with following command, replace "sda" with the matching "sdX" number of the drive you want to unlock
   1. For HGST and Western Digital drives

      1. For TCG Enterprise drives

         Code Block
         sedutil-cli --PSIDrevertAdminSP PSIDpasswordPrintedOnLabel /dev/sda

      2. For TCG Opal/Pyrite/Ruby drives

         Code Block
         sedutil-cli –-yesIreallywanttoERASEALLmydatausingthePSID PSIDpasswordPrintedOnLabel /dev/sda

   2. For Seagate drives

      Code Block
      sedutil-cli –-yesIreallywanttoERASEALLmydatausingthePSID PSIDpasswordPrintedOnLabel /dev/sdX

10. If multiple drives are used and to find the matching "sdX" and disk serial use following command

    Code Block
    find -L /sys/class/block -maxdepth 4 -name vpd_pg80 -exec cat {} \; -exec echo {} \;

    This will show a list of all connected drives, including the "sdX" and disk serial

    W461R3VJ /sys/class/block/sde/device/vpd_pg80

11. Repeat these steps with all drives which need to be unlocked.

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