Sometimes when you are at a Linux site, there is no one available with the right credential information for doing emergency maintenance.
There is a way around it: boot your Linux in Single user mode. Then it will not ask for a password, and boot straight into the user root.
When you are lucky, your linux site:
- allows for console access
- boots through a boot loader like GRUB or LILO, which allows for speicifying the kernel boot parameters
Modern systems usually use GRUBand you can follow the steps in Read the rest of this entry »