If you've just installed CentOS 6 on software RAID and it won't boot off /dev/md0, try the following: 1. Using your CentOS install media, boot in to rescue mode 2. Once you are booted in to rescue mode, select the "start shell" option 3. Enter the following command: chroot /mnt/sysimage 4. Re-install GRUB (/dev/md0 may ... Read More...
Latest CentOS Kernel version
CentOS 7.6.1810: 3.10.0-957.21.3