TIPS: Linux cannot be started.

Article Title: Tips to solve the problem that Linux cannot be started. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

If the Windows operating system crashes due to errors or other causes on a computer with multiple Boot Windows and Linux operating systems installed, if you do not back up the Windows operating system, you must reinstall the Windows operating system. The result is that the Linux operating system cannot be started, and only the Windows operating system can be started normally, what should I do now? Don't worry. Next I will introduce some of my experiences.

Theoretically, it is very simple to explain this situation. In general, GRUB boot loader is used to boot the machine, and then the user chooses the operating system to start. When the Windows operating system is reinstalled, the Windows operating system will not be able to start any other operating system, only Windows operating systems can be started. GRUB is different. It can retain the operating system's boot and cutting procedures. Therefore, you only need to re-install the GRUB boot and cutting program to achieve multi-boot.

The first step to find the Linux operating system installation disc, if it is a CD-ROM disc, with the first disc, if it is a DVD disc, then use this disc, insert the disc into the optical drive.

Step 2 restart the machine and press the "del" key to enter the CMOS for modification so that the machine will first boot from the CDROM.

Step 3: When "boot:" appears in the bottom line, type "linux rescue" and press the ammonium return key.

In step 4, a dialog box is displayed, asking you to select Chinese or english when you select a language. I chose english. After selecting a language, press Enter.

Step 5: a dialog box appears immediately. Select the keyboard type. The default value is "us". Press enter.

In step 6, a dialog box is displayed, asking you to select whether to open the network interface on your system. Generally, select "NO" and press Enter.

In step 7, the following dialog box appears: "Continue", "Read-only", and "Skip". The default dialog box is "Contiune, this is generally not required by the user. Press enter directly.

When a dialog box appears at the end of Step 8, press Enter. But you need to carefully read the above text, which is a prompt to teach you to proceed to the next step.

When you see the "SH-3.00 #" command prompt, type "chroot/mnt/sysimage" and press Enter.

In step 10, enter "grub-install/dev/had" and press Enter. Then, the GRUB boot loader has been installed.

In step 2, type "reboot" and restart the machine. When the machine conducts self-check, remove the disc. At this point, the multi-Boot Mode on your machine has been restored.

The above steps are implemented on my machine. My machine is installed with Windows XP sp2 and RHEL AS4 operating systems. Different machines may have different systems, different systems have been installed on my machine before, but they are generally the same. As long as you analyze specific problems, you only need to master the most basic principles, coupled with careful observation and careful analysis, you can easily solve some problems.