![]() Replace xxxxxx with the actual device name of the device you want to lose all data on. If you just want to wipe the MBR (making that drive unbootable, and all data on all partitions on that disk unrecoverable), you can run this command: dd if=/dev/zero of=/dev/XXXXXX bs=512 count=1 Rewriting the MBR doesn't require any formatting. In Unix/Linux creating file systems and partition tables is more common and precise. Also note that the notion of formatting a drive comes from the old DOS days. Please note that Low-Level formatting a hard drive refers to something completely different and should never be done by an end user. You can now partition and format the device. The device should now be physically wiped. hdparm -user-master u -security-erase llformat /dev/sda Low-level format NOW, security will be disabled again and you canĬontinue using the device. It should now display "enabled" under "Security:". Then show the device info again with the capital "i" as parameter. hdparm -user-master u -security-set-pass llformat /dev/sda If the device shows "notįrozen", you can proceed. "suspend to RAM" mode, then wake it up again. Most devices will "un-freeze" if you put the system to What you need to do to "un-freeze" it depends on theĭevice. If the drive shows "frozen" you must first The parameter is a capital "i", not a lowercase "l", just in case theįont is ambiguous. You want to low-level format is "/dev/sda" and that you have "hdparm" Under unixoid systems you can do it with "hdparm". This is a copy of the answer, current as of Jas provided by no.human.being et al, How do I perform a low level format of a Sandforce solid state disk?.To find out how to do this on Linux, read this hdparm tutorial on , A Low Level Format (LLF) is an instruction sent to the disk. ![]() llformat is just a (misleading) password. Edit: This answer is about ATA Secure Erase. ![]()
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