5e5a15872d
The environment block is a preallocated 1024-byte file which serves as persistent storage for environment variables. It has its own format which is sensitive to corruption if an editor does not know how to process it. Besides that the editor may inadvertently change grubenv file size and/or make it sparse which can lead to unexpected results. This patch adds a message to the grubenv file to warn a user against editing it by tools other than grub-editenv. Signed-off-by: Michael Chang <mchang@suse.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'