Repairing SUSE Linux Enterprise Server using a Rescue CD

Most problems with SUSE Linux Enterprise Server arise when you restart it. Many problems on this operating system are hardware-based and therefore only manifest on a server reboot. In such situations the Rescue System on every SUSE Linux installation CD or DVD can play a useful role. Here, you'll learn how to manually start your server using this option.

When using a rescue CD to recover your server, nothing on the hard drive mounts automatically. That means that you'll need to mount all file systems yourself. This requires more work, but also allows you to fix any problems that occur in the mounting process. Mounting just your ordinary file systems, however, is not enough; you'll need to make sure that only special file systems such as /dev and /proc become available. If, after mounting these file systems, you want to continue booting your server, you'll have to use the CHROOT command to change your current root environment. Only then will you be able to run all services as you would normally do.

You have now completely reconstructed your SUSE environment.

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SUSE Linux Enterprise Server has a complete Rescue environment on the installation disk. Using this rescue environment, you can reconstruct your complete server environment if you run into trouble. Here we have discussed how to perform these tasks that will help you repair access to your server as quickly as possible. Good luck repairing your server!

ABOUT THE AUTHOR: Sander van Vugt is an author and independent technical trainer, specializing in Linux since 1994. Vugt is also a technical consultant for high-availability (HA) clustering and performance optimization, as well as an expert on SUSE Linux Enterprise Desktop 10 (SLED 10) administration.

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