Heart failure (HF), often referred to as congestive heart failure (CHF), occurs when the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs. The terms chronic heart failure (CHF) or congestive cardiac failure (CCF) are often used interchangeably with congestive heart failure.
GRUB Rescue Shell. GRUB Rescue offers a limited set of commands to help you configure a one-time normal boot and repair GRUB from your operating system. Just because GRUB doesn't load properly doesn't mean your operating system is unbootable; the Linux filesystem is usually still intact and in good condition.
Boot-Repair is a free GRUB bootloader management utility which you can use in order to restore GRUB bootloader and fix errors which occur when you have a dual boot system setup of Linux and Windows on the same computer or when you have Ubuntu Linux installed with the Wubi installer, and one of them gets deleted.