Problem with GPT and a 12TB RAID-5 partition
Garb Dowle
garb.dowle at gmail.com
Fri Sep 10 09:45:48 CEST 2010
Hi again,
here is some more information:
I now could run "gdisk -l /dev/sda" on the Ubuntu 10.04, which I installed
with fai and which is not booting:
----------------------------------------------------------------------
GPT fdisk (gdisk) version 0.5.1
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Found valid GPT with protective MBR; using GPT.
Disk /dev/sda: 23437369344 sectors, 10.9 TiB
Disk identifier (GUID): EF622145-AA15-406D-924E-EF9D566D5CF3
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 23437369310
Total free space is 29 sectors (14.5 KiB)
Number Start (sector) End (sector) Size Code Name
1 63 409662 200.0 MiB 0700 primary
2 409663 8798270 4.0 GiB 8200 primary
3 8798271 23437369070 10.9 TiB 0700 primary
4 23437369071 23437369310 120.0 KiB EF02 primary
----------------------------------------------------------------------
There are a /boot-Partition on 1, a swap-Partiton on 2 and a /-partition on
3 with 11TByte. The fourth partition was added by setup-storage because of
the "gpt-bios" disclabel. Unlike the partition table generated by the Ubuntu
Installer-CD, the free space is only 29 sectors, the bios-partition is at
the end and its size is smaller.
I used following setup-storage config:
----------------------------------------------------------------------
# <type> <mountpoint> <size> <fs type> <mount options> <misc options>
disk_config /dev/sda disklabel:gpt-bios
primary /boot 200 ext3 defaults
primary swap 4G swap defaults
primary / 20G- xfs defaults
----------------------------------------------------------------------
The root-nfs, with which the Ubuntu 10.04 was installed has the backported
lenny kernel "2.6.32-bpo.3-amd64". Ubuntu 10.04 uses GRUB2, and the loader
gets installed with "grub-install /dev/sda".
P.S.: Installing Ubuntu 10.04 with partitions <2TB works like a charm, and
we are using it heavily at our company. Thank you for this very useful
software!
On Thu, Sep 9, 2010 at 5:44 PM, Garb Dowle <garb.dowle at gmail.com> wrote:
> Hi,
>
> if I select "gpt-bios" as disklabel in my setup-storage config, then, after
> installation of a Ubuntu 10.04 Server with FAI 3.3.5 it won't boot. After
> the BIOS-Screen, there will be only a blinking cursor on a blank screen, and
> nothing happens.
>
> Installing Ubuntu 10.04 with an Installation-CD on that system works fine.
> It recognizes my 12TB RAID-5 and adds a 1MByte BIOS Partition. The output of
> "gdisk -l /dev/sda" on that system shows:
>
> ----------------------------------------------------------------------
> GPT fdisk (gdisk) version 0.5.1
>
> Partition table scan:
> MBR: protective
> BSD: not present
> APM: not present
> GPT: present
>
> Found valid GPT with protective MBR; using GPT.
> Disk /dev/sda: 23437369344 sectors, 10.9 TiB
> Disk identifier (GUID): E206388F-7243-4EDF-BE0A-18E4F038DC38
> Partition table holds up to 128 entries
> First usable sector is 34, last usable sector is 23437369310
> Total free space is 4029 sectors (2.0 MiB)
>
> Number Start (sector) End (sector) Size Code Name
> 1 2048 4095 1024.0 KiB EF02
> 2 4096 503807 244.0 MiB 0700
> 3 503808 23437367295 10.9 TiB 8E00
> ----------------------------------------------------------------------
>
> I noticed, that setup-storage will add the BIOS Partition for GPT always as
> the last partition. I tried to place it at the beginning of the partition
> table, so that the partition table will look like that one generated from
> the Installer-CD, but I wasn't successful.
>
> Does somebody know how I can get this working?
>
> Thanks!
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.uni-koeln.de/pipermail/linux-fai/attachments/20100910/40e2dd95/attachment.htm
More information about the linux-fai
mailing list