[arch-general] can not login after upgrade

[Arno Gaboury]

Le 12. 06. 12 22:25, Δημήτρης Ζέρβας a écrit :
> i would advise you to have only Arch and just "deal with it" (hours and
> hours was eaten to just make something "the arch way") ... but it's out of
> the subject
> did you find any solutions?
>
> (\_ /) copy the bunny to your profile
> (0.o ) to help him achieve world domination.
> (>  <) come join the dark side.
> /_|_\ (we have cookies.)
>
>
> On Tue, Jun 12, 2012 at 11:20 PM, Arno Gaboury<arnaud.gaboury at gmail.com>wrote:
>
>> Le 12. 06. 12 21:57, Δημήτρης Ζέρβας a écrit :
>>
>>> oh yes, it's not mounted at all, that's why you can't see it from ubuntu
>>> (arch&   ubuntu? how could you? :P)
>>>
>>> it's not a problem, just mount the boot partition to /<arch-mount>/boot
>>> and the /boot partition CAN'T be empty, because you can't login, but you
>>> actually boot!
>>>
>>> (\_ /) copy the bunny to your profile
>>> (0.o ) to help him achieve world domination.
>>> (>   <) come join the dark side.
>>> /_|_\ (we have cookies.)
>>>
>>>
>>> On Tue, Jun 12, 2012 at 10:52 PM, Mateusz Loskot<mateusz at loskot.net>
>>>   wrote:
>>>
>>>   On 12 June 2012 20:50, Δημήτρης Ζέρβας<01ttouch at gmail.com>   wrote:
>>>>
>>>>> another guy had problems with his VPS...
>>>>> when he updated he lost any connection with the VPS
>>>>> do you have /boot on a separate partition?
>>>>>
>>>>
>>>> Indeed, and if it is on separate partition it's probably not
>>>> getting mounted properly.
>>>> May be issue with changes regarding using fstab/labels vs UUID.
>>>>
>>>> Best regards,
>>>> --
>>>> Mateusz Loskot, http://mateusz.loskot.net
>>>>
>>>>
>> As for Ubuntu and Arch on same machine, Ubutnu was a good way for me to
>> learn. Once I felt comfortable, I switched to Arch, and NEVER LOOK BACK !!
>>   :-)
>> But I am still a, let's say a n00b++, and this issue is puzzling me.
>> Yes, /boot and /usr are not on the root /, and you are right, the boot CAN
>> NOT be empty, it is just NOT mounted.
>> It seems I can do everything from Ubuntu, but I am not so sure to know
>> how. I will try to figure out, and LEARN, again and again...
>>

I do not want to flame, but let me give you an advise too : BOTTOM POST 
in the ML, it is much more easy to follow  :-)

Yes, I have a solution, follwoing Corentin Delcourt and Kacper Zuk answer :

https://wiki.archlinux.org/index.php/Chroot

If that's the issue, you can mount your root partition in Ubuntu, chroot 
to it (read Change Root article on archwiki), edit /etc/mkinitcpio.conf 
and run mkinitcpio -p linux.

Never did it before, but will manage to achieve to solve this issue.

Learning, again and again.