Ubuntu server 14.04.3 can be installed only with EFI partition but I can't boot

[Sergiu Mihuleac]

How can the partition table be irrelevant? .. First of all, if you install
from usb the usb most be either dos or gpt, you can chose with rufus. If is
gpt the installation will be gpt the same if it is dos. What firmware are
you speeching about? Mdadm is software raid and also is a kernel module
that must be enabled and in ubuntu is enabled by default .. So the
possibility of an incompatibility is low, i've used it on many   system
including servers that had old hardware raid and a number of different
pc's, never had any issues with it. The problem in your case is a misstep
or a misconfiguration.
On Oct 26, 2015 1:09 PM, "Petter Adsen" <petter at synth.no> wrote:

> On Mon, 26 Oct 2015 12:26:07 +0200
> Sergiu Mihuleac <mihuleac.sergiu at gmail.com> wrote:
>
> > On what hdd is grub installed? Make sure bios boots from it. Second for
> dos
> > you may need to recrete partition table, boot from an live usb with gpart
> > and at device you will find create partition tabe then selec dos.
>
> The partition table type is completely irrelevant. The problem is that
> the firmware does not understand mdadm RAID. You can either place the
> EFI boot partition on a non-RAID partition, put it on a USB stick and
> boot from that, or manually duplicate a non-RAID EFI boot partition to
> the other disk and add UEFI boot entries for it with 'efibootmgr'.
>
> Petter
>
> > On Oct 26, 2015 12:16 PM, "Petter Adsen" <petter at synth.no> wrote:
> >
> > > On Mon, 26 Oct 2015 12:02:54 +0200
> > > Victor Sterpu <victor at casnt.ro> wrote:
> > >
> > > > Hello
> > > >
> > > > I installed Ubuntu server 14.04.3 a lot of times today.
> > > > My setup is 2 HDD in RAID 1, /boot, root and swap partitions.
> > > > If I install Ubuntu without a EFI partition I receive the error "This
> > > > GPT partition label contains no BIOS Boot Partition" when grub
> installs
> > > > and I can't boot.
> > > >
> > > > If I create a new partition of type EFI(RAID1) then grub install fine
> > > > but I can't boot from the system.
> > > > The Bios is in UEFI mode.
> > > > How can I fix this?
> > >
> > > Put the EFI boot partition outside the RAID?
> > >
> > > Petter
> > >
> > > --
> > > "I'm ionized"
> > > "Are you sure?"
> > > "I'm positive."
> > >
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>
>
>
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> "Are you sure?"
> "I'm positive."
>
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