Unable to boot the original system after installing centos7 under windows

Foreword:

Install the centOS7 system in the original Window7 system to run dual systems on the notebook. After transferring the files on the system D drive, delete the volume label, make the USB drive a CentOS7 boot disk, and perform normal installation.

Problem:

After installing CentOS7, I found that the original Windos7 system could not be entered.

Solution:

Mount the Windows 7 system disk in CentOS7 and automatically generate the system boot file through grub2.

1. Make sure CentOS7 has grub2 installed

/sbin/grub2-install  /dev/sda

Restart the system.

2. Mount the Windows 7 system disk in CentOS7

Mainly install ntfs-3g, the method is:

at www.tuxera.com/community/open-source -ntfs-3g/Download the latest ntfs-3g installation package source file, unzip it and enter the folder, type ./configure, make, makeinstall commands to install ntfs-3g.

Check the disk partition and find the windows7 system disk: fdisk -l. It can be seen that sda1 is the windows7 system disk (the format is NTFS)

Mount the windows7 system disk sda1:

mount -t ntfs-3g /dev/sda1  mnt/windows/c

3. Execute

grub2 -mkconfig -o /boot/grub2/grub.cfg

under the root user. The system will automatically search for the windows7 system and automatically set the searched system to the grub.cfg file.

Related tutorial recommendations: centos tutorial

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