On 02/05/2016 06:31 PM, Mark LaPierre wrote:
So let me get this straight. You are saying that you can make changes
to the MB ROM/EPROM/whatever hardware the vendor uses, by issuing an
erase command on a hard drive?
No, but you can erase the UEFI variables by issuing "rm" on them if the
OS presents them as a part of the filesystem, as Linux does. You know,
the UNIX design philosophy of "everything is a file"?
Not all of the filesystem represents sectors on a hard drive.
You might be able to trash the system on the HD to a point that it is
unrecoverable. I will believe that.
When you're done trashing the system you just have to reinstall the
system just like you would with a clean new HD.
https://github.com/systemd/systemd/issues/2402
On some systems, wiping the UEFI variables renders the system completely
unbootable. It shouldn't, but there are some bad UEFI implementations
out there.
All that UEFI crap is built into the MB in Read Only hardware. A new HD
does not come with any of the UEFI files or directories already on the
disk. All that is created at the initial install. Blowing them away
with a remove command does nothing to the MB hardware because it's Read
Only hardware.
The UEFI configuration is entirely RW.
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