kernel http://${fog-ip}/gparted/vmlinuz initrd=initrd.magic 
initrd http://${fog-ip}/gparted/initrd.img
imgargs vmlinuz boot=live union=overlay username=user config components quiet noswap  toram=filesystem.squashfs net.ifnames=0  nosplash fetch=http://${fog-ip}/gparted/filesystem.squashfs
boot || goto MENU

Gparted boots fine.

Out of curiosity, how come this was marked as solved?

Not sure if you noticed but this is an old topic that was marked solved even before you posted. That’s one of the reasons why we keep telling people to open their very own topics and post all their details in that new one. Makes things a lot clearer. If you think a lot of the information is in the old topic, then just link to it from your new one.

Please add details like the exact commands used to prepare the files and version of GParted you use as this might make a difference. As well post if you boot in UEFI or legacy BIOS mode and if it’s a VM setup or on hardware.

As far as the Kernel goes, running file /tftpboot/iso/gparted/live/vmlinuz returned:

/tftpboot/iso/gparted/live/vmlinuz: Linux kernel x86 boot executable bzImage, version 5.10.0-6-686 (debian-kernel@lists.debian.org) #1 SMP Debian 5.10.28-1 (2021-04-09), RO-rootFS, swap_dev 0x4, Normal VGA

It still will not boot to Gparted. Can you post instructions on how to properly download and
extract the iso to that folder? Maybe I did not do that correctly.

Here are my menu parameters:

Here is part of my ISO files:

[root@localhost ~]# sudo tree -d /tftpboot/iso/gparted/
/tftpboot/iso/gparted/
├── boot
│   └── grub
│   ├── i386-efi
│   └── x86_64-efi
├── [BOOT]
├── EFI
│   └── boot
├── live
├── syslinux
└── utils
├── linux
│   ├── x64
│   └── x86
├── mbr
├── win32
└── win64

16 directories
[root@localhost ~]# sudo tree /tftpboot/iso/gparted/live
/tftpboot/iso/gparted/live
├── filesystem.packages
├── filesystem.packages-remove
├── filesystem.squashfs
├── GParted-Live-Version
├── initrd.img
├── memtest
└── vmlinuz

By the way, do you think the double … vmlinuz vmlinuz … in that line is correct? I don’t think it’s causing an issue but nevertheless stumbled upon this.

Well that format is understood but still a little confusing to read. If you rewrite the call so its a bit clearer it would look like this

kernel tftp://${fog-ip}/iso/gparted/live/vmlinuz 
initrd tftp://${fog-ip}/iso/gparted/live/initrd.img
imgargs vmlinuz boot=live config components union=overlay username=user noswap noeject ip= vga=788 fetch=tftp://${fog-ip}/iso/gparted/live/filesystem.squashfs
boot

In regards to the OP’s error. One might think that secure boot is turned on or you are trying to boot a bois or uefi boot image with the opposite firmware.

What I might do is on the fog server and run file /tftpboot/iso/gparted/live/vmlinuz to see if it comes back as a valid linux kernel.

kernel tftp://${fog-ip}/iso/gparted/live/vmlinuz vmlinuz boot=live ...

Do you have the ISO file extracted to /tftpboot/iso/gparted/ on your FOG server?

@george1421 By the way, do you think the double ... vmlinuz vmlinuz ... in that line is correct? I don’t think it’s causing an issue but nevertheless stumbled upon this.

My menu config file parameters are

kernel tftp://${fog-ip}/iso/gparted/live/vmlinuz vmlinuz boot=live config components union=overlay username=user noswap noeject ip= vga=788 fetch=tftp://${fog-ip}/iso/gparted/live/filesystem.squashfs
initrd tftp://${fog-ip}/iso/gparted/live/initrd.img
boot

What might I be doing wrong?

OS: CentOS 8

Error: Operation not supported could not boot (http://ipxe.org/3c126003)

it stops there:

greedings User

So what can you do?

Move to one of the other supported protocols like tftp:// or nfs://

To use the tftp:// protocol you would update your menu to be something like this (note I fixed your fetch kernel parameter too).

kernel tftp://${fog-ip}/iso/gparted/live/vmlinuz vmlinuz boot=live config components union=overlay username=user noswap noeject ip= vga=788 fetch=tftp://${fog-ip}/iso/gparted/live/filesystem.squashfs
initrd tftp://${fog-ip}/iso/gparted/live/initrd.img

The only thing I’m unsure of is if the kernel supports tftp pulling. Also the variable ${fog-ip} is replaced by the fog menu with the IP address of your fog server. Hard coding the IP address in the fog menu doesn’t make it very portable.

So since we are using tftp:// protocol you need to place the files in /tftpboot/iso/gparted based directory.

If that doesn’t work then you could try nfs:// which should be supported by the linux kernel.