[Users] Still unable to boot in system with UEFI

Wed Feb 15 16:35:50 UTC 2012

On 02/15/2012 11:05 AM, Federico Alberto Sayd wrote:
> El 15/02/12 12:34, Joey Boggs escribió:
>> On 02/15/2012 10:20 AM, Federico Alberto Sayd wrote:
>>> El 14/02/12 13:29, Joey Boggs escribió:
>>>> On 02/14/2012 10:36 AM, Federico Alberto Sayd wrote:
>>>>> El 14/02/12 10:35, Joey Boggs escribió:
>>>>>> On 02/14/2012 08:29 AM, Federico Alberto Sayd wrote:
>>>>>>> Hello:
>>>>>>>
>>>>>>> Recently I downloaded the ovirt stable node image. According to 
>>>>>>> releases notes since 2.2.2 UEFI installation bug has been fixed, 
>>>>>>> but I still can't boot from my server with UEFI. Ovirt installs 
>>>>>>> without problem, but when the system reboots nothing  happens, 
>>>>>>> the system don't boot. Then I try to boot with super grub disk 2 
>>>>>>> live cd, it detects ovirt installation and boots the system.
>>>>>>>
>>>>>>> I think that still there is a problem with UEFI in certain 
>>>>>>> hardware:
>>>>>>>
>>>>>>> Mi system is a IBM blade center HS22 7870
>>>>>>>
>>>>>>> Can anyone confirm problems with UEFI in 2.2.2 version?
>>>>>>>
>>>>>>> Thanks
>>>>>>>
>>>>>>> Federico
>>>>>>> _______________________________________________
>>>>>>> Users mailing list
>>>>>>> Users at ovirt.org
>>>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>>>
>>>>>> Can you boot the image like you did with the grub livecd and run 
>>>>>> efibootmgr -v also mount /dev/disk/by-label/EFI and run find on 
>>>>>> where you mounted it.
>>>>>>
>>>>>
>>>>> Ok,
>>>>>
>>>>> efibootmgr -v
>>>>>
>>>>> Fatal: Couldn't open either sysfs or procfs directories for 
>>>>> accessing EFI variables.
>>>>> Try 'modprobe efivars' as root
>>>>>
>>>>> I can't mount /dev/disk/by-label/EFI, when I create a directory 
>>>>> and try to mount the partition, mount says:
>>>>>
>>>>> mount: /dev/sda1 already mounted or disco busy
>>>>>
>>>>> however, mount output don't show that /dev/sda1 is mounted
>>>>>
>>>>> Some directories are in read only mode and I could not create a 
>>>>> directory to mount the partition, I tried into /config and /live.
>>>>>
>>>>> /dev/disk/by-label/EFI points to /dev/sda1 and "disco" is the 
>>>>> directory mount point.
>>>>>
>>>>> Also,  /proc/efi/vars/   and  /sys/firmware/efi/vars/ are not present
>>>>>
>>>>> Thanks
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at ovirt.org
>>>>> http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>> Ah.. was assuming the grub disc you booted from was EFI enabled. 
>>>> Try booting the node iso in EFI mode and run through those steps 
>>>> again.
>>>>
>>> Super grub disk detects the grub.cfg from ovirt's installation and 
>>> loads the system from this configuration. Therefore I assume that 
>>> the kernel parameters from grub config loads the system with EFI 
>>> enabled.
>>>
>>> The grub config from grub's console is:
>>>
>>> setparams 'oVirt Node Hypervisor 2.2.2-2.2.fc16'
>>>
>>> set root=(hd0,3)
>>> linux /vmlinuz0 root=live:LABEL=Root ro rootfstype=auto rootflags=ro 
>>> crashkernel=512M-2G:64M,2G-:128M elevator=deadline quiet rd_NO_LVM 
>>> rhgb rd.luks=0 rd.md=0 rd.dm=0
>>> initrd /initrd0.img
>>
>> EFI boot process is done before the grub config comes into play, and 
>> the grub config has a few extra lines in it. The machine I'm testing 
>> on when you goto the boot menu will show UEFI: $CD_DEVICE_NAME or for 
>> boot entries for ovirt it would show:  oVirt Node Hypervisor If your 
>> grub cd supports efi booting it will be noticeable in the boot menu. 
>> In order to do an efi installation it has to be booted in efi mode 
>> for it to properly setup the boot entries.
>>
> Before the Ovirt entry on Grub menu, Grub2 displays the config detected:
>
> setparams '(hd0,gpt3)/grub2/grub.cfg'  'hd0,gpt3' 
> '(hd0,gpt3)/grub2/grub.cfg'
>
> cfg_device="$2"
> cfg="$3"
> root="$cfg_device"
> configfile "$cfg"
>
> Is there where "UEFI:" parameter must be present?
>
> Sorry, I am a newbie to UEFI and Grub2, meanwhile I am reading all I 
> can about Grub2 and UEFI
>
> Thanks
>
> Thanks
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

You would see it just past the machine posting, on mine you would press 
F8 to reach a boot menu and then select cd/usb/etc from there. The uefi 
trigger happens similar to the machine reading a mbr on a drive. One way 
to notice if its working or not it a higher resolution perception on the 
monitor, text is smaller and the screen doesn't appear as the normal 
80x25 console line/columns. You just need to find the right combination 
of keys to get in the menu. By livecd-tools defaults the ovirt-node iso 
supports efi loading. Grub2/uefi support in Fedora isn't quite there 
yet, so in this case we're still using legacy grub's efi loader and 
writing an alternate grub config to match it, similar to how Fedora is 
doing it until grub2 support is there.