Hi Heinrich,
Please find the answers to your queries below:
How to reproduce:
1.Take the upstream code
2.Place the capsule in /EFI/UpdateCapsule in the ESP
partition (in kernel)
3.Reboot
4.U-Boot fails to find the ESP partition and continues
with normal boot
Which caller fails:
/find_boot_device /function in /efi_capsule_scan_dir/ fails;
particularly /device_is_present_and_system_part/ in /find_boot_device/
(line 990) fails for all boot options
In /device_is_present_and_system_part/,
"/efi_dp_find_obj(dp, &efi_system_partition_guid, &rem);/" fails
In /efi_dp_find_obj/ function, in /find_handle/
function, this condition is triggered (in line 142): "/if (len_current >
len)/", because of which it skips the ESP partition handle. From the
below paths, we can see that the length of the ESP's path (len_current)
is greater than the length of the boot0000's path (len).
boot0000's device path:
/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,0000000000000000)/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,6e00000000000000)/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,7e00000000000000)/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,6c00000000000000)/Scsi(0,0)
ESP handle's device path:
/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,0000000000000000)/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,6e00000000000000)/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,7e00000000000000)/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b,6c00000000000000)/Scsi(0,0)/HD(1,GPT,2f2a74a5-4b82-da72-3110-7287ec562fb1,0x6,0x20000)
On 7/25/2025 7:31 PM, Heinrich Schuchardt wrote:
Could you, please, describe how to reproduce the issue you are seeing.
Which caller fails for you?
What are the values of the UEFI Boot####, BootNext variables that you
use to find the capsule?
What is the device-path of the ESP?
