Bug#982591: grub-pc can't be updated non-interactively on debian/buster64
Le 12/02/2021 à 19:14, Evgeni Golov a écrit :
> On Fri, Feb 12, 2021 at 06:55:35PM +0100, Emmanuel Kasper wrote:
>> Le 12/02/2021 à 12:36, Evgeni Golov a écrit :
>>> On Fri, Feb 12, 2021 at 10:03:08AM +0100, Thomas Lange wrote:
>>>> This behaviour was also reported as #982182
>>>
>>> Interesting, thanks!
>>>
>>> To me the GRUB change seems reasonable, even if a tad unexpected in a
>>> point release.
>>>
>>> You change to FAI [1] looks pretty much how I would envision a correct
>>> fix in the Vagrant box too, just executed at a different time.
>>>
>>> Thanks!
>>>
>>> [1] https://github.com/faiproject/fai-config/commit/bf90f3048f552f2dc1a0f50766646dff9f67aef9
>>>
>>
>> Thanks Thomas for the pointer to #982182.
>> The bug on the Vagrant box is similar but the root cause is different.
>> On the latest buster box:
>>
>> vagrant ssh -- sudo debconf-show grub-pc | grep grub-pc/install_devices:
>> * grub-pc/install_devices: /dev/vda
>>
>> This is because the box is built with packer which uses virtio-blk from
>> qemy by default and create such devices.
>>
>> So for the vagrant side of this, at least for buster we should switch
>> the default disk driver to virtio-scsi, which creates during the install
>> a /dev/sda debconf entry, which is the same device name grub sees on
>> VirtualBox and its sata controller.
>
> This would break here, as my Vagrant uses virtio-blk too (and I think
> that's the default these days in libvirt).
>
> However here (albeit on 10.4, see #982592),
> debconf-show grub-pc | grep grub-pc/install_devices
> yields empty, and this is also probably the reason why it fails to
> upgrade to 10.8.
ah you're using the libvirt box
these boxes are built with vmdebootstrap which is unmaintained:/
there is work in progress to replace vmdebootstrap with fai-diskimage at
https://salsa.debian.org/cloud-team/debian-vagrant-images which should
fix this. Until then I am afraid we have to live with manually setting
echo 'grub-pc grub-pc/install_devices multiselect /dev/vda' | sudo
debconf-set-selections
before doing an apt upgrade
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