Re: [qubes-users] No boot after dom0 security repo update on may 15

[Marek Marczykowski-Górecki]

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Hash: SHA256

On Thu, May 17, 2018 at 11:54:03AM -, awokd wrote:
> On Wed, May 16, 2018 1:51 pm, pony...@keemail.me wrote:
> > Hi all. My machine directly boots into BIOS screen if my Asus Zenbook
> > UX303 after updating Qubes 4.0 dom0, security repo enabled. I don't
> > remember the error messages (s.th. with keys).
> > So I boot from rescue USB Stick. Have to choose (3), going directly to
> > shell. —
> > And here I'm stuck, since many, many hours. No really helpful, _accurate_
> > instructions for medium talented users found. ;)
> > How to replace dom0? Or restore boot files?I've got a pretty fresh
> > complete backup on external USB drive, but don't want to install
> > everything anew.
> 
> Reinstall/restore might be fastest. If you want to try to fix it, search
> this mailing list for "efibootmgr" assuming you have UEFI boot. Sounds
> like something got corrupted. Reinstall GRUB if not using UEFI.

If that's UEFI, verify content of /boot/efi/EFI/qubes/xen.cfg (/boot/efi
is a separate partition, the first one on default install). Verify that
default= entry points at existing section and it is the newest one. Also
verify if files referenced there looks sane (if you've run out of disk
space, those might be smaller than the rest). By editing this file you
can also boot earlier kernel.

Here is example xen.cfg file:
https://www.qubes-os.org/doc/uefi-troubleshooting/#installation-finished-but-qubes-boot-option-is-missing-and-xencfg-is-empty

- -- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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Re: [qubes-users] No boot after dom0 security repo update on may 15

[awokd]

On Wed, May 16, 2018 1:51 pm, pony...@keemail.me wrote:
> Hi all. My machine directly boots into BIOS screen if my Asus Zenbook
> UX303 after updating Qubes 4.0 dom0, security repo enabled. I don't
> remember the error messages (s.th. with keys).
> So I boot from rescue USB Stick. Have to choose (3), going directly to
> shell. —
> And here I'm stuck, since many, many hours. No really helpful, _accurate_
> instructions for medium talented users found. ;)
> How to replace dom0? Or restore boot files?I've got a pretty fresh
> complete backup on external USB drive, but don't want to install
> everything anew.

Reinstall/restore might be fastest. If you want to try to fix it, search
this mailing list for "efibootmgr" assuming you have UEFI boot. Sounds
like something got corrupted. Reinstall GRUB if not using UEFI.

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Re: [qubes-users] No boot after dom0 security repo update on may 15

[ponyboy]

>> My machine directly boots into BIOS screen if my Asus Zenbook UX303 after 
>> updating Qubes 4.0 dom0, security repo enabled. I don't remember the error 
>> messages (s.th. with keys).
>> So I boot from rescue USB Stick. Have to choose (3), going directly to 
>> shell. —
>> And here I'm stuck, since many, many hours. No really helpful, _accurate_ 
>> instructions for medium talented users found. ;)
>> How to replace dom0? Or restore boot files?>> I've got a pretty fresh 
>> complete backup on external USB drive, but don't want to install everything 
>> anew.
>
>
>
>
>  I think I'm on the right way.
>
>
>
>
>   1) Booting from USB installer/rescue stick
>
>   2) 'Rescue' mode
>
>   3) Number (1), waiting _patiently_ for decryption
>
>   4) Following
>
>   > https://www.qubes-os.org/doc/uefi-troubleshooting 
> > ,
>
>   section 'Installation finished but “Qubes” boot
>
>   option is missing and xen.cfg is empty'
>
>
>
>
>   Let's see ...
>




 Yay!




  Deleted new kernel entries, changed default in

  xen.cfg to older kernel.




  Uff.

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Re: [qubes-users] No boot after dom0 security repo update on may 15

[ponyboy]

> My machine directly boots into BIOS screen if my Asus Zenbook UX303 after 
> updating Qubes 4.0 dom0, security repo enabled. I don't remember the error 
> messages (s.th. with keys).
> So I boot from rescue USB Stick. Have to choose (3), going directly to shell. 
> —
> And here I'm stuck, since many, many hours. No really helpful, _accurate_ 
> instructions for medium talented users found. ;)
> How to replace dom0? Or restore boot files?> I've got a pretty fresh complete 
> backup on external USB drive, but don't want to install everything anew.




 I think I'm on the right way.




  1) Booting from USB installer/rescue stick

  2) 'Rescue' mode

  3) Number (1), waiting _patiently_ for decryption

  4) Following

  https://www.qubes-os.org/doc/uefi-troubleshooting 
,

  section 'Installation finished but “Qubes” boot

  option is missing and xen.cfg is empty'




  Let's see ...

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