RARE user and assistance email list

[Alexander Gall <>]

On Tue, 21 Feb 2023 09:44:31 +0100, David Franco <> said:

> Yes, I follow the steps you suggested in the previous email. I tried 
> several times but I get always to the same point.

> Here is the fdisk output... It is weird because fdisk shows the 
> partition while blkid doesn't (blkid /dev/sda1 returns an empty value).

This fdisk probably doesn't understand GPT :( Better use "sgdisk -p
/dev/sda". Partition 1 should have type 0xEF00, something like this

Number  Start (sector)    End (sector)  Size       Code  Name
   1            2048          526335   256.0 MiB   EF00  EFI System
   2          526336          788479   128.0 MiB   3000  ONIE-BOOT

/dev/sda1 should also be mounted when you boot ONIE. "df -T
/dev/sda1" shows you the file system. It should be vfat, e.g.

ONIE:/ # df -T /dev/sda1
Filesystem           Type       1K-blocks      Used Available Use% Mounted on
/dev/sda1            vfat          261868       272    261596   0% /boot/efi

For vfat (it's actually FAT16), the UUID is located at offset 39

ONIE:/ # dd bs=1 skip=39 count=4 if=/dev/sda1 2>/dev/null | od -x
0000000     5c78    9f2b                                                
0000004

and that's what should be printed by blkid

ONIE:/ # blkid /dev/sda1
/dev/sda1: LABEL="EFI System" UUID="9F2B-5C78"

How do these things look on your system?

--
Alex

> El 21/02/2023 a las 9:00, Alexander Gall escribió:
>> Hi David
>> 
>> On Tue, 21 Feb 2023 08:47:29 +0100, David Franco<>  
>> said:
>> 
>>> Good morning,
>>> I tried updating the ONIE and then reinstalling the ONL image but I
>>> still get the same error.
>> Just to make sure: did you also perform the "ONIE embed" step?
>> 
>>> I send you the output of /blkid /command.
>> /dev/sda1 is missing there. That should be the EFI system partition,
>> so something is not right. Can you please also show me the partition
>> table, e.g. with "fdisk -l /dev/sda"?
>> 
> -- 
> David Franco
> I2T Research Group, Department of Communications Engineering
> University of the Basque Country (UPV/EHU), Spain
> Tel: +34 946 018 251