Loss of important Linux files resulting in system failures, repair methods (with Libc.so.6 library corruption, RPM package failures for example)

The first step: Find the damaged file and its installation package, install the fix. Before repairing, make clear that your corrupted files belong to that package, which can be viewed on a server with the same version that works.

Well know what the file is damaged, then just install the fix.

The second step: if the physical server has the above failure to press the restart button directly, if it is a virtual machine, then press the reset directly.

Step three: Boot from the CD drive and enter rescue mode.

Under the BIOS settings from the CD-ROM boot, different motherboard boot differently, the usual shortcut keys are F12
ESC usually has a hint when it is switched on.

Fourth step, install the corresponding software.

In the installation process, may be damaged in the RPM library can not be installed directly, error is as follows

ERROR:DB5 error (one) from Dbenv->open:resource temporarily unavailable
Error:cannot Open Packages Index using Db5-resource temporarily unavailable (11)
Error:cannot Open Packages Database in/var/lib/rpm

This situation requires rebuilding the RPM database.

C6 on the same way.

Loss of important Linux files resulting in system failures, repair methods (with Libc.so.6 library corruption, RPM package failures for example)