Have you tried running Etcher as administrator?
That helped. Now I can flash the USB, but the message is still the same after the boot: “Welcome to GRUB”.
So some parts of the code on the USB are read, but not all.
It the network connection needed in this boot up process?
It means you have some issue at bios level.
no
I have created several USB keys with Etcher. Used Etcher to unpack, unpacked with 7-zip, downloaded the image file using Firefox and Edge.
Updated BIOS to newest version, disabled secure boot, check mark in USB boot, booted and F10 to enter the boot menu.
USB key correctly selected as boot.
BUT STILL “WELCOME TO GRUB”
No more good ideas…
I always use an old USB drive with these settings. I never manged to get new USB drives over 32 GB to work.
Torben
That’s not my experience with Balena Etcher.
I have used 128GByte and 256GByte USB sticks without issue.
According to the Etcher home page, there is no need for a format of the USB key as the program will handle this as part of the process.
I get the USB key name when I press F10 during the boot and I then press enter to continue - and then the “Welcome to GRUB”.
I run the Etcher program as administrator and the process looks like it runs without any error messages.
It seems to me that your device is not seeing the USB as a bootable device. You must have the boot process set as UEFI in the bios. Also when you view the storage devices in bios you should see your USB in the list and it should say UEFI partition 1 or something similar.