Plan next semester without notebook, usually programming netbook is enough, also look at the general algorithm, so that netbook installed Centos7 and Kali, Netbook is APU, but these two versions of Linux are supported by a good.
First install CentOS, because familiar with Linux, so boot a zone, the root of a zone, the rest to the home, where the swap and home is two Linux shared, the specific installation of the partition on the line,
Note here that all partitions are EXT4, which defaults to the standard partition, otherwise Kali grub may not be recognized.
CentOS installation All normal, next install Kali, partition what everything is normal, finally installed grub unexpectedly how also ann not on! Do not know why, there is no way to skip installation grub, but into the system unexpectedly has grub,
This is odd, not installed Grub reboot several times after the bad, boot black screen Nothing shows, only repair grub.
Repair GRUB using the following command on the Kali Linux Live CD
mount/dev/sda5/mnt &N Bsp //here is the root directory mounted to mnt
Mount/dev/sda5/mnt/boot & nbsp //here is the boot partition mounted to/mnt/boot
MoU NT--bind/dev/mnt/dev . This is the original system of the Dev directory mount, to use the bind parameter
chroot/mnt &NBS P //Change the current root directory
G RUB-INSTALL/DEV/SDA &NB Sp //Reinstall Grub to the first partition
exit
Reboot
This will fix the grub, then modify the contents of the GRUB.D, and then reboot, the problem again, the display can not find the device, and then a string of numbers.
Check for a half day found mounted disk has such a number, called UUID, because changed the CentOS file system, the UUID changed, to the menuentry inside the string to change the number of the current CentOS boot partition
's UUID. Then Update-grub, after restarting no error, but not to go into the emergency. Check the system log, found or boot mount failed, the original also to modify the/etc/fstab file, the inside of the
Automatically mount the UUID of the disk into the later modified boot partition, then perfect into the system!
Install the dual Linux system and Kali grub repair again!