b8b072ddcd
Per systemctl(1), it "is asynchronous; it will return after the reboot operation is enqueued, without waiting for it to complete". This differs from kexec(8), which calls reboot(2) and therefore does not return. When not using fallback, this confusingly results in: error trying to perform 'systemctl kexec': 0 Aborted. Press any key to exit. on screen for a bit, followed by successful kexec. To reduce the likelihood of hitting this case, add a delay on successful return. Ultimately, the systemd interface is racy: we can't avoid it entirely unless we never fallback on success. Signed-off-by: Robbie Harwood <rharwood@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. 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'