GPT on BIOS system partitions scheme



Could someone using GPT on a BIOS system confirm if I got the GPT
partitioning right on a BIOS system

I followed the documentation from http://www.rodsbooks.com/gdisk/

This is the out put after partitioning the HDD using Ubuntu 11.10 live CD

root@ubuntu:/home/ubuntu# gdisk /dev/sda
GPT fdisk (gdisk) version 0.6.14

Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present

Found valid GPT with protective MBR; using GPT.

Command (? for help): p
Disk /dev/sda: 1465149168 sectors, 698.6 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 8C5F38B2-BFAB-4A48-8720-5E6BB4434046
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1465149134
Partitions will be aligned on 2048-sector boundaries
Total free space is 1058782 sectors (517.0 MiB)

Number Start (sector) End (sector) Size Code Name
1 2048 411647 200.0 MiB EF00 EFI System
2 675840 677887 1024.0 KiB EF02 BIOS boot partition
3 942080 3039231 1024.0 MiB 0700 Linux/Windows data
4 3303424 1464884942 696.9 GiB 8E00 Linux LVM

Command (? for help):

================================
*Partition3 will be used for /boot
partition4 - LVM over LUKS

*============================

Used Fdisk to mark the first partition as boot.



root@ubuntu:/home/ubuntu# fdisk /dev/sda

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk
doesn't support GPT. Use GNU Parted.


The device presents a logical sector size that is smaller than
the physical sector size. Aligning to a physical sector (or optimal
I/O) size boundary is recommended, or performance may be impacted.

Command (m for help): p

Disk /dev/sda: 750.2 GB, 750156374016 bytes
256 heads, 63 sectors/track, 90845 cylinders, total 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
/dev/sda1 * 1 1465149167 732574583+ ee GPT
Partition 1 does not start on physical sector boundary.

Command (m for help):

--
Kind regards,
Yudi