[ovirt-users] Failed to open grubx64.efi

[Yuval Turgeman]

Hi,

I checked a little more, anaconda uses blivet to detect if the machine is
EFI for its boot partition requirements, and blivet checks if
/sys/firmware/efi exists [1].
The kernel registers /sys/firmware/efi only if EFI_BOOT is enabled [2], and
this is set in on setup, when the kernel searches for an EFI loader
signature
in boot_params [3] (the signatures are defined as "EL32" and "EL64").

You can access boot_params under /sys/kernel/boot_params/data, so if you
want
to understand what's going on with your machine, you can try to use strings
to
see if it's enabled while running anaconda - on my test machine it looks
like this:


[anaconda root at localhost ~]# strings /sys/kernel/boot_params/data

EL64

fHdrS


Hope this helps :)
Yuval.

[1]
https://github.com/storaged-project/blivet/blob/44bd6738a49cd15398dd151cc2653f175efccf14/blivet/arch.py#L242
[2]
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree/drivers/firmware/efi/efi.c?h=v3.10.108#n90
[3]
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree/arch/x86/kernel/setup.c#n930


On Tue, Nov 21, 2017 at 8:57 PM, Yuval Turgeman <yuvalt at redhat.com> wrote:

> Boot partition reqs should be handled the same on both ovirt node and
> centos (or rhel) and you having to add this manually on rhel can give us a
> hint that this is a bug in anaconda (doesnt detect efi?).
>
> In other words, if you need to add this to rhel you'd need to add it to
> ovirt node and autopart shouldnt scare you off, just follow the
> partitioning guidelines, add your changes and you are all set.  You can
> grab some ks examples here:
>
> git clone https://gerrit.ovirt.org/ovirt-node-ng
>
> On Nov 21, 2017 20:13, "Luca 'remix_tj' Lorenzetto" <
> lorenzetto.luca at gmail.com> wrote:
>
>> On Tue, Nov 21, 2017 at 4:54 PM, Yuval Turgeman <yuvalt at redhat.com>
>> wrote:
>> > Hi,
>> >
>> > I tried to recreate this without success, i'll try with different hw
>> > tomorrow.
>> > The thing is, autopart with thinp doesn't mean that everything is
>> lvm-thin -
>> > /boot should be a regular (primary) partition (for details you can check
>> > anaconda's ovirt install class)
>> > This could be a bug in anaconda or in the kickstart that deploys the
>> node
>> > (if not installing directly from the iso), can you install CentOS-7.4
>> with
>> > UEFI enabled on this machine ?  If you have some installation logs, that
>> > would help :)
>>
>> Hi,
>>
>> on the same hardware i can install with success rhel 7.4 using UEFI.
>> This required to change my default partitioning to another one
>> containing
>> /boot/efi/ partition, adding this entry:
>>
>> part /boot/efi --fstype=efi --size=200 --ondisk=sda
>>
>> I suppose that autopart doesn't create this partition.
>>
>> Luca
>>
>>
>> --
>> "E' assurdo impiegare gli uomini di intelligenza eccellente per fare
>> calcoli che potrebbero essere affidati a chiunque se si usassero delle
>> macchine"
>> Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)
>>
>> "Internet è la più grande biblioteca del mondo.
>> Ma il problema è che i libri sono tutti sparsi sul pavimento"
>> John Allen Paulos, Matematico (1945-vivente)
>>
>> Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <
>> lorenzetto.luca at gmail.com>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20171122/2121d0ff/attachment.html>