Code later on checks if variables inside the struct are 0 to see if they have been set, like if there were addresses in the bootpath. The variables were not initialized however, so the check might succeed with uninitialized data, and a new interface with random addresses and the same name is added. This causes $net_default_mac to point to the random one, so, for example, using that variable to load per-mac config files fails. Bug-Ubuntu: https://bugs.launchpad.net/bugs/1785859 Signed-off-by: Julian Andres Klode <julian.klode@canonical.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'
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