RARE user and assistance email list

[Alexander Gall <>]

Hi David

On Tue, 21 Feb 2023 11:10:41 +0100, David Franco <> said:

> I had a short, but very clarifying, VC with Frederic and it finally worked.

> Frederic suggested that, as you told me in a previous mail, it would be 
> better to burn a USB with the ONIE recovery image. I did so and the 
> partition table was rebuilt correctly, so eventually, the installer did 
> its job.

Happy to hear that :) It would have been interesting to understand why
it didn't work with the onie-self-update method because that should do
the same thing, I think. We should add this procedure to our Howto for
the Netberg so we won't forget (again) for next time :)

-- 
Alex

> Thank you very much for your time and help,

> David

> El 21/02/2023 a las 10:47, Alexander Gall escribió:
>> 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

> -- 
> David Franco
> I2T Research Group, Department of Communications Engineering
> University of the Basque Country (UPV/EHU), Spain
> Tel: +34 946 018 251