Cannot start centos6.4

  
after double system reinstalling windows7

1. Download CentOS-6.4 installation CD ISO2. Use UltraISO to burn it to U disk 3. Restart to enter the BIOS interface, select boot from U disk 4. to install CD In the interface, select Rescue install system to enter the rescue mode. 5. After a series of settings, enter the shell mode. 6. Execute the following command, reinstall grub[php] # chroot /mnt/sysimage # /sbin/grub-install /dev/sda

7. View/edit grub configuration file [php] #vi /boot/grub/grub.conf

8. If there is no Windows
startup item, you can add it manually. #Windowstitle windows7root (hd0,0)makeactivechainloader +19.Save, exit, restart [php] #exit #reboot

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