[issue]: Improve support to PorteuX about ventoy HOT 8 OPEN

porteux-v0.9-gnome-42.10-stable-x86_64.iso

This does not seem to UEFI64-boot even under VirtualBox when added as a Virtual CD.
How do you know that this actually works when UEFI64 booted ?
It also does not boot when using agFM and UEFI64.

from ventoy.

On UEFI hardware I got porteux-v0.9-xfce-4.18-stable-x86_64.iso to boot by extracting contents to fat32 flash drive. This is a SysLinux system not a grub system so grub mode wouldn't do anything afaik. I replaced the files in the iso with the files mentioned in this comment to no change. porteux/porteux#29 (comment)
If I had to guess a hook would need to be modified or created for this distribution.

from ventoy.

@steve6375, indeed using VirtualBox with EFI enabled it doesn't boot, the same way it doesn't for other Syslinux distros I tested, like Slax and Porteus. Is there a solution for this? Because as @catherinedoyel said, it works on a real machine.

@catherinedoyel, thanks for digging into this. Since PorteuX shares some of Porteus structure, I believe the hook would be very similar (maybe the same). Also, in Porteus the hook makes it work in grub mode as well.

from ventoy.

VBox boots it as a CD\DVD, catherinedoyel tested it on a real machine but extracted the ISO files to a flash drive - not the same thing!
Maybe the ISO boot code works by looking for a disk rather than optical media?

from ventoy.

from ventoy.

from ventoy.

Thanks, guys. I'm using this to generate the ISOs:

mkisofs -o "$ISONAME" -v -l -J -joliet-long -R -D -A "$CDLABEL" \
-V "$CDLABEL" -no-emul-boot -boot-info-table -boot-load-size 4 \
-b boot/syslinux/isolinux.bin -c boot/syslinux/isolinux.boot ../. > /dev/null 2>&1

And then:

isohybrid --partok "$ISONAME"

If I try to use isohybrid passing --uefi parameter it says unable to find efi image. Maybe those issues are all connected somehow.

from ventoy.

I managed to create an ISO using this command:

./xorriso -as mkisofs -no-emul-boot -boot-load-size 4 -boot-info-table -iso-level 4 \
-b boot/syslinux/isolinux.bin -eltorito-alt-boot -e EFI/boot/bootx64.efi -no-emul-boot \
-o porteux.iso iso-folder/

And finally isohybrid --uefi porteux.iso doesn't show any error, but VirtualBox still doesn't boot when EFI is enabled. :(

from ventoy.