Author: parsec
Subject: J4205-ITX UEFI Mode CSM=off doesn't boot Ubuntu 16
Posted: 01 Jan 2017 at 2:02am
A picture of the blank screen won't help, no need for that.
I don't have much else to tell you, if it is a problem with the board's UEFI/BIOS, I cannot fix that myself.
A Windows UEFI booting installation has a legacy MBR partition, and an EFI partition, so it can boot in UEFI or legacy/BIOS mode.
You said you think Ubuntu is booting in legacy/BIOS mode with the CSM options configured as you described, but where is the legacy, non-EFI boot partition?
I don't know Ubuntu/Linux well enough to know what is happening in this situation.
Subject: J4205-ITX UEFI Mode CSM=off doesn't boot Ubuntu 16
Posted: 01 Jan 2017 at 2:02am
 Juanjo1982 wrote:About the test. CSM enabled and storage pRom in UEFI mode. It boots my Ubuntu installation and also my USB stick, it also boots if the other two options are in UEFI only. I think it isn't able to boot via UEFI and as CSM is enabled it boots via BIOS anyway. So we are back to the initial point. Some images: The UEFI device I choose when I try to boot from the USB image made with rufus (the same as unetbottin) http://imgur.com/b9ZqcBU My gparted information about the Ubuntu installation made in mode CSM:  I will add a photo of the blank screen if you need it but it doesn't help to much  |
A picture of the blank screen won't help, no need for that.
I don't have much else to tell you, if it is a problem with the board's UEFI/BIOS, I cannot fix that myself.
A Windows UEFI booting installation has a legacy MBR partition, and an EFI partition, so it can boot in UEFI or legacy/BIOS mode.
You said you think Ubuntu is booting in legacy/BIOS mode with the CSM options configured as you described, but where is the legacy, non-EFI boot partition?
I don't know Ubuntu/Linux well enough to know what is happening in this situation.