Diego Farias wrote: > 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 > same. > > I know I can use the older kernels to work, but I really want to fix this > if possible. > > Thanks in advance. Congrats. It's nice to know other folks have the same problem I do, except mine was on a honkin' Dell R730 server with lots of cores and memory. Btw, folks, the normal update installs teh "with debugging" as an option; I *assuem* that it has crash kernel enabled. However, /etc/kdump.conf is default configured to dump to /var/crash, which has nothing at all in it. Also - I believe I mentioned it, it kernel panics *just* as it tries to switch root. Diego, can you tell if you're getting a kernel panic? mark