Linux Tips

Maybe you want the user to enter a password in order to boot the Recovery Mode or your secondary OS. You have to set that password in the /boot/grub/menu.lst - for higher security you should crypt your password with md5. You have two ways to do that. The first one might-not work for all. 1. You can use the utility 'grub-md5-crypt' to generate the md5. So type at terminal: $ grub-md5-crypt enter your desired password twice and copy the generated crypt-hash into the menu.lst, for example: title Ubuntu (Kernel 2.6.12-9-386) - Recovery Mode password --md5 $1$HSX1$JYNyfBY0pVizk5kyMQOqn/ root (hd0,2) kernel /boot/vmlinuz-2.6.12-9-386 root=/dev/hda3 ro single initrd /boot/initrd.img-2.6.12-9-386 boot Now reboot and try to start the protected boot-option, enter your password. 2. Reboot your machine and enter the grub-menu. Now press "c" key on your keyboard to enter the command line of grub. Now type: md5crypt Enter your desired 'password' and write d...