How the hell do you write an ISO to a thumbdrive on Linux without using syslinux/bootiso (as it's a Windows ISO)?

dd
wine plus rufus
ISO with > 4 GB Windows Installation Files, you'll need 2 partitions.
One EFI vfat containing all folders + (sources dir containing only one file - boot.wim)
Other NTFS containing complete sources directory.

@Haxk20 Never heard of it, might be worth a look!

@IntrusionCM Wait, Rufus works in Wine???

Yes.

And Rufus is the best in my opinion.

There are a lot of projects like winusb or others which are not maintained or forked and then discontinued.

Rufus works.

sudo dd bs=4M if=iso.iso of=/dev/sdx

Alternatively Ubuntu has an Image Writer that can write all kinds of disk images.

@620hun this ☝🏻. Ain't getting more basic than that.

@620hun
Recently tried that, this is not working for a Windows 10 ISO
For Linux you are right

Bloated, but easiest flashing ui and works on all platforms
https://www.balena.io/etcher/

Use dd command

@lonelydev @620hun @IntrusionCM it's not hybrid (as it's a Windows ISO) so no dd. I'm using Fedora, so no Ubuntu writer. (The Fedora "image writer" is literally just a dd writer and the third-party ones I can find are as well.) I tried Rufus and winusb like an hour ago in Wine, neither see the stick.

If u see it in dmesg....

sudo bash -l
parted --align opt /dev/sde (or whatever device)
mklabel gpt
mkpart boot fat32 1MiB 1GiB
set 1 esp on
mkpart sources ntfs 1GiB 100 %
quit
mkfs.vfat /dev/sde1
mkfs.ntfs /dev/sde2

mkdir /mnt/win
mkdir /mnt/win_boot
mkdir /mnt/win_sources

mount -t auto -o loop,ro wherever the windows image is /mnt/win

mount -t auto -o rw /dev/sde1 /mnt/win_boot

mount -t auto -o rw /dev/sde2 /mnt/win_sources

rsync -v --exclude 'sources' /mnt/win /mnt/win_boot

mkdir /mnt/win_boot/sources

cp /mnt/win/sources/boot.wim /mnt/win_boot/sources

cp -R /mnt/win/sources /mnt/win_sources

umount /mnt/win*
sync

Done.

Everything out of memory. Feel free to ask

For latest Windows ISO containing a wim File > 4 GB, which cannot be written in FAT32 btw.

Assuming UEFI boot / x64

/dev/sde - USB stick, necessary 8 GB plus. (5 GB plus)

@IntrusionCM i dont have root access to system

@IntrusionCM i need it programmatically without using root

Eh.... Wut?!

If you do not have root access it seems impossible.

Why do u not have root access....?!!

Etcher?

@IntrusionCM the WIM is actually 1 byte under 4GB. Things are... distributed outside of it as well, leading to that.
(Also i'm saving that as a script, if you're OK with it.)

No Problem.

Just Check that i made no mistake and it works.