Comment 3 for bug 181525

I do not have the system available at this time.
I can recreate it however, currently it is at work.
Last I recall ubiquity exits in error since it doesn't successfully
install grub stage1 into mbr.

Long story of it:

It is not a desktop system really, but figured I would see how known
installation processes handle the large arrays, anything past 2TB.
It seemed that the Grub2 didn't have all that needed initially, but I
will have to recreate the situation again, which I can do tomorrow, or
make strides.

We are building debian 64bit system, using it embedded for our
security product.
I use ubuntu on my desktop and other system, just our products are
using the debian 64 distro.
I have spent a lot of time looking at various ways to configure large
arrays, things larger than 2TB, but most of our systems are 6 to 14
TB.

I basically use the first drive as OS, then create one large gpt
partition on the 6 to 8 TB array. But Grub has issue, grub2 had other
issues. I also notices fdisk, parted, and cfdisk have various querks
as well dealing with gpt.
At any rate I got around our configuring issues with our image restore
of embededed 64bit debian distro.

we use dump and restore, I essentially interrogate the devices, if I
get sda, it get sliced up as OS, then sdb, gets gpt and ext2, and
mounted to our application space.

In summary, I will try to recreate so that this issue can be analyzed.
most of it would be better for us if the Raid controller allowed for
carving, like 3ware does, so we don't waist space with unimportant
areas, or ares that don't grow.
I work for High Tower Software, inc.... high-tower.com if you have
need to understand what we are doing.
I dove into the ubiquity abit to figure out some of the logic, since
I didn't want to recreate the wheel.
<quote who="TerryG">
> Triaged to Incomplete. Looks like a problem with GRUB accessing the
> MBR
> of your large drive. It may have something to do with going through
> the
> PERC6 RAID controller and 7 TB of disk. Is this really a desktop?
> What
> happens when you load the Live CD and choose: Boot from First Hard
> Disk?
>
>
> ** Changed in: ubiquity (Ubuntu)
> Status: New => Incomplete
>
> --
> On GPT disk label, grub-install fails with Fatal error. Stage1 not
> read correctly.
> https://bugs.launchpad.net/bugs/181525
> You received this bug notification because you are a direct subscriber
> of the bug.
>

--
Mark