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First look for firmware files in the source directory and then, if not found, look for them in locations where Debian installs them. Prefer to use the unified firmware file and, if not found, use the pflash firmware files split in to code and variables. By looking for files in the source directory first, system firmware files can be overridden and it can be ensured that the tests can be run regardless of the distro or where the system firmware files are stored. If no firmware files are found, print an error message and exit with error. If a firmware VARS file is found, use it with snapshot mode enabled, which makes the VARS writable to the virtual machine, but does not write back the changes to the file. This allows using the readonly system VARS file without copying it or using it in readonly mode, which causes the ARM machine to fail. This also gives tests effectively their own ephemeral VARS file that can be written to without causing side-effects for other tests. Signed-off-by: Glenn Washburn <development@efficientek.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. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. 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'