[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




More information about the CentOS mailing list