[CentOS] In A UEFI World, "rm -rf /" Can Brick Your System

[m.roth at 5-cent.us]

John R Pierce wrote:
> 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.

Yeah, I don't think we really know, until someone's willing to brick a
many-thousand-dollar server....

     mark