Hi, Le 31/01/2018 à 22:37, Thomas Schmitt a écrit : > > In this case a run with grub-mkrescue-sed.sh will not make much sense. > First one will have to configure GRUB to enable at least one of the EFI > variants. I dimly remember that the machine was 64 bit, i.e. should run > bootx64.efi.
I'm happy to report that the USB stick I made today with grub-mkrescue-sed.sh does boot alright on tested machines. As a side note, the machine on wich I made it is a Manjaro that boots in UEFI 64 mode, so for sure it's grub is UEFI-capable. The HP tested machine has, AFAIK, no CSM "legacy" boot mode at all and I believe it doesn't boot anything but UEFI. That said, I don't have the machine on which I made the stick at hand and I made the ISO image in a tmpfs, so... But directly analyzing the USB stick I made, on another (Arch) machine now gives : root@zafu:/# xorriso -indev stdio:/dev/sdb -report_el_torito plain -report_system_area plain xorriso 1.4.8 : RockRidge filesystem manipulator, libburnia project. xorriso : NOTE : Loading ISO image tree from LBA 0 xorriso : UPDATE : 632 nodes read in 1 seconds libisofs: WARNING : Found hidden El-Torito image. Its size could not be figured out, so image modify or boot image patching may lead to bad results. xorriso : NOTE : Detected El-Torito boot information which currently is set to be discarded Drive current: -indev 'stdio:/dev/sdb' Media current: stdio file, overwriteable Media status : is written , is appendable Boot record : El Torito , MBR grub2-mbr cyl-align-off Media summary: 1 session, 8594 data blocks, 16.8m data, 14.8g free Volume id : 'ISOIMAGE' El Torito catalog : 141 1 El Torito cat path : /boot.catalog El Torito images : N Pltf B Emul Ld_seg Hdpt Ldsiz LBA El Torito boot img : 1 BIOS y none 0x0000 0x00 4 1487 El Torito boot img : 2 UEFI y none 0x0000 0x00 5760 7154 El Torito img path : 1 /boot/grub/i386-pc/eltorito.img El Torito img opts : 1 boot-info-table grub2-boot-info El Torito img blks : 2 1440 System area options: 0x00004a00 System area summary: MBR grub2-mbr cyl-align-off ISO image size/512 : 34376 Partition offset : 16 MBR heads per cyl : 64 MBR secs per head : 32 MBR partition table: N Status Type Start Blocks MBR partition : 1 0x80 0x00 64 28552 MBR partition : 2 0x00 0xef 28616 5760 Hope this helps (although I don't get much out of this myself ;-) ॐ -- Michel Bouissou <mic...@bouissou.net> OpenPGP ID 0xEB04D09C _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel