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Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions
From: |
Thomas Schmitt |
Subject: |
Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions |
Date: |
Thu, 18 Apr 2019 15:50:59 +0200 |
Hi,
Florian Pelz wrote:
> I find a efi/boot/bootx64.efi PE executable inside efi.img on the Guix
> ISO. On Debian the long name is EFI/boot/bootx64.iso in capital letters
(I assume s/bootx64.iso/bootx64.efi/)
It's FAT filesystem. Upper case or lower case does not matter.
Most probably it is a matter of mount options whether you see capital
or small letters.
The image files seem to contain the names in capital letters:
# mount guixsd-install-0.16.0.x86_64-linux.iso /mnt/iso
$ strings /mnt/iso/efi.img | head -9
MTOO4021
Hf3NO NAME FAT12
EFI
.
..
BOOT
.
..
BOOTX64 EFI
# umount /mnt/iso
# mount debian-live-9.8.0-amd64-xfce.iso /mnt/iso
$ strings /mnt/iso/boot/grub/efi.img | head -17
mkfs.fat
dNO NAME FAT12
This is not a bootable disk. Please insert a bootable floppy and
press any key to try again ...
EFI
KNKN
.
KNKN
..
KNKN
BOOT
KNKN
.
KNKN
..
KNKN
BOOTX64 EFI
> How would I check if it gets run?
Interesting question. If it says "GRUB" or "Guix", then it runs. But up
to then it may start and fail silently.
> the Guix USB drive
> merely does not show up (for Debian, it shows up as an EFI partition
> in the boot menu).
So probably it is not run.
I'll develop a xorriso repack run for the layout of Debian ISOs, as
strange as it is.
Have a nice day :)
Thomas
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, (continued)
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/17
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/17
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/17
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/17
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/17
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/18
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/18
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/18
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/18
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/18
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions,
Thomas Schmitt <=
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/18
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, pelzflorian (Florian Pelz), 2019/04/19
- Re: [Bug-xorriso] ISO installer image: GPT versus MBR partitions, Thomas Schmitt, 2019/04/19