[CentOS] Kernel crash

Thu Oct 12 20:46:02 UTC 2017
Diego Farias <dnfarias at uc.cl>

Hi everyone,

I updated the kernel from 3.10.0-514.16.1.el7.x86_64
to  3.10.0-693.2.2.el7.x86_64 . While I was following these steps
https://wiki.centos.org/HowTos/Laptops/Wireless/Broadcom (I knew that I
needed to compile again everything) in order to activate WIFI, the laptop
crashed doing

# depmod -a
# modprobe wl

Noting that I replaced (naively) # depmod $(uname -r) from the guide
(stupid mistake, I use tcsh and the command above didn't work; that's why
the replacement).

After the crash, I had to manually shutdown the laptop. Then, I booted the
same kernel and it went to 'emergency mode'; as I don't have the root
password (second stupid mistake; I'm superuser but I don't remember the
root password/nor I can change it -I don't know-) I couldn't do a thing.

Then, I booted the previous kernel, 3.10.0-514.16.1.el7.x86_64 (which works
fine), removed 3.10.0-693.2.2.el7.x86_64 (yum remove), and reinstalling it
from zero. Oddly,
when I boot with the new kernel, the laptop crashes before login; the caps
lock light tilts and nothing happens. I've done this several times and the

I know I can use the older kernels to work, but I really want to fix this
if possible.

Thanks in advance.