I believe the Linux kernel's default configuration is to filter out
these commands (so your webserver doesn't set a password for you :) --
see e.g.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/ata
/libata-scsi.c?id=HEAD#n3043
(Though I'm a bit confused, that's in the libata code, and I don't see
libata loaded on my laptop...)
Try adding libata.allow_tpm=1 to the kernel command line via's grub
edit-command option, and see if this changes the situation.
Thanks
** Changed in: hdparm (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1245255
Title:
IO-Error when trying to change the master password of a self
encrypting ssd
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