[CentOS] In A UEFI World, "rm -rf /" Can Brick Your System
John R Pierce
pierce at hogranch.com
Mon Feb 1 22:13:05 UTC 2016
On 2/1/2016 2:07 PM, m.roth at 5-cent.us wrote:
> John R Pierce wrote:
>> >wait. would deleting the inode/sys/(whatever) actually modify UEFI
>> >memory? sure, writing to those inodes could do all sorts of harm, but
>> >deleting the inodes in the /sys filesystem, I'm not so sure this isn't a
>> >tempest in a teapot so to speak.
> It's going to get /boot. And under there, it'll get /boot/EFI.
so it will delete inodes there... does that damage the EFI
hardware? I would think you'd have to open files and write data to
actually modify the EFI stuff.
my only C7 systems right now are VMs which don't have uefi, so I can't
look and see what all this stuff actually is.
--
john r pierce, recycling bits in santa cruz
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