On Mon, Jan 08, 2018 at 01:48:42PM +0100, Daniel Kiper wrote: > On Wed, Dec 20, 2017 at 12:35:20PM +0100, Thomas Schmitt wrote: > > Hi, > > > > i am unhappy about the state of the thread > > > > http://lists.gnu.org/archive/html/bug-grub/2017-12/msg00010.html > > "HP ProBook x360 11 G1 EE incompatible with grub" > > > > which is about an EFI implementation which SYSLINUX for EFI can operate > > from USB stick whereas GRUB from USB stick ends up with black screen. > > > > An allergy of the firmware towards ISO 9660 hybrid images on USB stick > > can surely be ruled out by > > http://lists.gnu.org/archive/html/bug-grub/2017-12/msg00022.html > > (The only known production ISO with SYSLINUX for EFI does work) > > http://lists.gnu.org/archive/html/bug-grub/2017-12/msg00024.html > > (A normal distro installation works after replacing GRUB by SYSLINUX) > > > > The bug reporter, Michel Bouissou, seems well apt enough to do experiments. > > But i am not apt enough to propose any beyond ISO 9660. > > Could people from this list please give Michel some hints about how to > > retrieve more information about the problem between GRUB and this > > peculiar EFI ? > > Thank you for a notice. Sorry for late reply. I am just back after a bit > longer vacation. Now I am recovering and trying to get at speed. I will > take closer look at the thread next week.
OK, I have looked through the email exchange. I have not seen any info about the UEFI/firmware update. Have you done that? If you have not please do. If it does not help please create bootable USB stick in following way. I assume that USB stick is /dev/sdb device. If not please change device path below accordingly. Additionally, if you use Debian, IIRC you do, please install at least following extra packages: dosfstools, gdisk, grub-common and grub-efi-amd64-bin. I assume that other distros has similar ones. 1) Zap GPT and MBR - DANGEROUS - it removes all GPT and MBR partitions # sgdisk -Z /dev/sdb 2) Create EFI System Partition (code EF00) using gdisk. 256.0 MiB will suffice. 3) Format EFI System Partition # mkdosfs /dev/sdb1 4) Create GRUB2 EFI bootable image # mount /dev/sdb1 /mnt # mkdir /mnt/efi/boot # grub-mkstandalone -O x86_64-efi -o /mnt/efi/boot/bootx64.efi # umount /dev/sdb1 Reboot HP machine from this USB stick. You should see normal GRUB2 prompt. If it does not happen then I will think about next steps. If you have any questions please drop me a line. Additionally, I will be at FOSDEM this weekend. So, if you wish and you will be there then you can bring the machine and I can take a look. Daniel _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel