Public bug reported:
Downloaded the daily build (2020 April 17) of Focal Fossa 20.04 and
flashed it to a 64GB USB stick using the Ubuntu built-in program. The
USB is correctly recognized but the BIOS cannot boot into GRUB. The
screen goes black and after a second or so the boot device list is shown
again.
ThinkPad info:
Lenovo Carbon X1 6th
UEFI BIOS Version: N23ET71 (1.46)
UEFI BIOS Date: 2020-02-20
Embedded Controller Version: N23HT35W (1.20)
ME Firmware Version: 11.8.70.3626
Machine Type Model: 20KHCT01WW
CPU Type: Intel Core i7-8550U
Installed memory: 16384MB
Startup info:
UEFI Secure Boot: Off
UEFI/Legacy Boot: Both
UEFI/Legacy Boot Priority: UEFI First
CSM Support: Yes
USB info:
Partition type: GPT
Model: Extreme GO USB 3.1 64GB
Partition filesystem: FAT32
What I have tried to do:
I tried both MBR and GPT partitions. I tried to use the built-in program to
flash the USB. I tried to copy the ISO to the USB just using 7z. I tried to set
UEFI/Legacy Boot to "Legacy only" or "UEFI only". I tried a different port.
VERY IMPORTANT: the same USB stick and the same BIOS settings work for
Ubuntu 18.04.
What I expected to happen:
that the GRUB menu is shown.
What happened instead:
black screen and then the boot device list is shown again.
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: focal
** Description changed:
Downloaded the daily build (2020 April 17) of Focal Fossa 20.04 and
flashed it to a 64GB USB stick using the Ubuntu built-in program. The
USB is correctly recognized but the BIOS cannot boot into GRUB. The
screen goes black and after a second or so the boot device list is shown
again.
ThinkPad info:
Lenovo Carbon X1 6th
UEFI BIOS Version: N23ET71 (1.46)
UEFI BIOS Date: 2020-02-20
Embedded Controller Version: N23HT35W (1.20)
ME Firmware Version: 11.8.70.3626
Machine Type Model: 20KHCT01WW
CPU Type: Intel Core i7-8550U
Installed memory: 16384MB
Startup info:
UEFI Secure Boot: Off
UEFI/Legacy Boot: Both
UEFI/Legacy Boot Priority: UEFI First
CSM Support: Yes
USB info:
Partition type: GPT
Model: Extreme GO USB 3.1 64GB
Partition filesystem: FAT32
What I have tried to do:
- I tried both MBR and GPT partitions. I tried to use the built-in program. I
tried to copy the ISO to the USB just using 7z. I tried to set UEFI/Legacy Boot
to "Legacy only" or "UEFI only". I tried a different port.
+ I tried both MBR and GPT partitions. I tried to use the built-in program to
flash the USB. I tried to copy the ISO to the USB just using 7z. I tried to set
UEFI/Legacy Boot to "Legacy only" or "UEFI only". I tried a different port.
VERY IMPORTANT: the same USB stick and the same BIOS settings work for
Ubuntu 18.04.
What I expected to happen:
that the GRUB menu is shown.
What happened instead:
black screen and then the boot device list is shown again.
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https://bugs.launchpad.net/bugs/1873503
Title:
Focal does not boot in Lenovo Carbon X1 6th gen
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