5b9308aff0
When reading data off a disk, sector values are based on the disk sector length. Within grub_util_fd_open_device(), the start of the partition was taken directly from grub's partition information structure, which uses the internal sector length (currently 512b), but never transformed to the disk's sector length. Subsequent calculations were all wrong for devices that have a diverging sector length and the functions eventually skipped to the wrong stream location, reading invalid data. Signed-off-by: Mihai Moldovan <ionic@ionic.de> 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'