Frank Thommen wrote: > ** WARNING: This mail is from an external source ** > > > Hi, > > how can a specific device driver in CentOS 7 be blacklisted, so that it > doesn't load at boot time? We have Infiniband adapters which are not > completely supported by CentOS and we want to silence the error messages > for the time being. > > I tried with the files > > /etc/modprobe.d/blacklist > /etc/modprobe.d/blacklist.conf > > and with entries > > mlx5_core > mlx5_ib > > blacklist mlx5_core > blacklist mlx5_ib > > install mlx5_core /dev/null > install mlx5_ib /dev/null > > all found on different websites. > > None of these entries helps. mlx5_core and mlx5_ib are still loaded and > the system is flooded with error messages. They are probably being loaded via the initramfs at boot time - i.e. before the real root is mounted (where the blacklist entries exist) I believe you can either add 'rd.driver.blacklist=<driver_name>' to the grub2 boot cmdline - or generate a new initramfs (using 'dracut -f -v' - make a copy of your current initramfs first) - as this should pull in entries in /etc/modprobe.d/ James Pearson