Re: [security-onion] install problem - GPT 10TB

[Moeen Yamani]

Hello Doug and SO community

I tried the /boot partition option and other online suggestions, but I haven't been able to install SO (or Ubuntu 12.04 for that matter) on a 10TB partition.  If I create a 2TB partition on the same server it installs without any issues. 

Any ideas and suggestions on how to install SO on a 10TB RAID-5 drive would be much appreciated.

Thank you

Moeen

On Wed, Sep 4, 2013 at 8:18 PM, Doug Burks <doug....@gmail.com> wrote:

Hi Moeen,

This isn't really a Security Onion problem, it's more related to the
underlying Ubuntu OS.  You can try googling for:
error out of disk grub rescue ubuntu 12.04

Most likely when you run through the Ubuntu installer, you'll need to
create a /boot partition at the beginning of the drive.  Make it about
500MB.

On Wed, Sep 4, 2013 at 8:15 PM, Moeen Yamani <hade...@gmail.com> wrote:
> Hello Everyone
> I am a linux and SO newbie.
> I have Dell PowerEdge 2950 server. I have updated the BIOS and the Perc 5i
> controller to the latest updates.  I have created a 10TB Raid 5 storage.
> After the SO installation completes the first time and requires a reboot,
> the server boots to:
>
> error: out of disk
>
> grub rescue>
>
>
> I have deleted the raid and recreated it.  I have downloaded the latest
> version of SO and tried 3 different copies.  I don't know what am I doing
> wrong.
>
> Please help !
>
> Thank you
>
> Moeen
>
>
>

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--
Doug Burks
http://securityonion.blogspot.com

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[Doug Burks]

All I can tell you is that I know of many servers with >20TB RAID5
arrays that work fine (assuming a small /boot partition at the
beginning of the drive).

If this doesn't work for you, then it's possible there is a bug in
Ubuntu. If that's the case, then we can't fix that, only Ubuntu can.
Please post to the Ubuntu forums for further assistance.

Thanks,
Doug

[Moeen Yamani]

Thank you Doug !

It finally worked !!  I am sharing my experience for the benefit of posterity.  :-)

This is what I was doing and it wasn't working.  I was creating the /boot partition during the installation.  I did this a few times, sometimes as /boot partition and sometimes /bios_grub partition.  Each time I would get the :out of disk error or it would simply not boot.

Per my colleague's advise, I created a small size Virtual Disk (VD) via the Raid Controller for the /boot partition at the beginning of the disk and 9+TB VD for the installation.  During the installation when it gives you the option to create the partitions manually, I pointed the /boot partition to the small VD and the / partition to the 9+TB VD.  Although, right before booting it gives:

>Out of disk

>No suitable mode found

error, but it boots just fine and has survived several reboots.

now to the next step.  need to start fine tuning it and need to put this baby into production.

Moeen

:

[Michal Purzynski]

On 9/18/13 1:31 AM, Moeen Yamani wrote:
> Hello Doug and SO community
> I tried the /boot partition option and other online suggestions, but I
> haven't been able to install SO (or Ubuntu 12.04 for that matter) on a
> 10TB partition. If I create a 2TB partition on the same server it
> installs without any issues.
>
> Any ideas and suggestions on how to install SO on a 10TB RAID-5 drive
> would be much appreciated.
>
> Thank you
>
> Moeen
>
>
>

mpurzynski@nsm5:~$ df -h
Filesystem Size Used Avail Use% Mounted on

/dev/sda3 71G 4.4G 63G 7% /

udev 32G 4.0K 32G 1% /dev
tmpfs 13G 768K 13G 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 32G 0 32G 0% /run/shm
/dev/sda1 961M 51M 861M 6% /boot

/dev/sdb1 28T 34M 28T 1% /data

28TB partition in one piece, XFS. I'm pretty sure grub could not boot
from it (one of our SRE tried that accidentally) so you just need a
separate /boot and / that are smaller, like 1GB and 20GB.

It's also safer (grub-wise) to boot from the EXT3/4.