IBP: provisioning script should create BIOS boot partition

[Alexei Sheplyakov]

IBP installs BIOS variant of grub2 (grub-pc) as a boot loader.
Since hard drives are partitioned via GPT a special "BIOS boot" (code ef02) partition should be created.
Otherwise grub might fail to read its core image. Also some EFI firmwares in BIOS simulation mode
refuse to boot from a hard drive which 1) has GPT, 2) don't have a "BIOS boot" partition

[root@node-10 ~]# gdisk -l /dev/vda
GPT fdisk (gdisk) version 0.8.4

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

Found valid GPT with protective MBR; using GPT.
Disk /dev/vda: 67108864 sectors, 32.0 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): FF44CDB7-191C-4128-B84C-F536F3C99DE4
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 67108830
Partitions will be aligned on 2048-sector boundaries
Total free space is 114621 sectors (56.0 MiB)

Number Start (sector) End (sector) Size Code Name
   1 2048 51199 24.0 MiB EF02 primary
   2 51200 460799 200.0 MiB 0700 primary
   3 460800 870399 200.0 MiB 0700 primary
   4 870400 40847359 19.1 GiB 0700 primary
   5 40847360 53901311 6.2 GiB 0700 primary
   6 53901312 66955263 6.2 GiB 0700 primary
   7 66955264 66996223 20.0 MiB 0700 primary

[Vladimir Kozhukalov (kozhukalov)]

Alexey,

This partition is what you mean when say "BIOS boot"

1 2048 51199 24.0 MiB EF02 primary