What should I do if the boot disk cannot be found when the Linux system starts?

1. Fault phenomenon

CentOS 6.5 displays grub loading stage2 after restarting, and the screen display always stops at this place.

2. Cause of failure

The system cannot find the boot disk during startup

3.Solution Method

Mount the same system image through the virtual optical drive in BMC and restart

Select rescue installed system

Enter the Shell script input interface and enter the command#chroot /mnt/sysimage

#/sbin/grub-install /dev/sda

Then reboot and uninstall the mounted CD image.

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