Comment 0 for bug 1288564

Description:
==========
Installed Ubuntu beta1 build ISO on a Power 8 machine as a KVM guest

Trying to create partition on a 1 tera byte scsi disk using fdisk, but could not create as the cylinders are not shown if it is more than 65535.

also,

uname -a
========
Linux ubuntu 3.13.0-14-generic #34-Ubuntu SMP Thu Feb 27 22:35:16 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux

Detail logs
========

user@ubuntu:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1T 0 disk
vda 253:0 0 80G 0 disk
├─vda1 253:1 0 7M 0 part
├─vda2 253:2 0 76.7G 0 part /
└─vda3 253:3 0 3.3G 0 part

====> create parition on sda using fdisk

root@ubuntu:~# fdisk /dev/sda
The number of cylinders for this disk is set to 65535.
This is larger than 1024, and may cause problems with:
1) software that runs at boot time (e.g., LILO)
2) booting and partitioning software form other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
Warning: invalid flag 7300 of partition table 4 will be corrected by w(rite)

Command (m for help): p

Disk /dev/sda: 255 heads, 63 sectors, 65535 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot Begin Start End Blocks Id System

Command (m for help): n
Command action
   e extended
   p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-65535): 1
Last cylinder or +size or +sizeM or +sizeK ([1]-65535): 65535 =====> cannot select more than 65535 as I want to create more partition using all cylinders of the disk

Command (m for help): p

Disk /dev/sda: 255 heads, 63 sectors, 65535 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot Begin Start End Blocks Id System
/dev/sda1 1 1 65535526409856 83 Linux native

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
(Reboot to ensure the partition table has been updated.)
Syncing disks.

WARNING: If you have created or modified any DOS 6.x
partitions, please see the fdisk manual page for additional
information.

=======> check if the parition is created
root@ubuntu:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1T 0 disk
├─sda1 8:1 0 502G 0 part
├─sda2 8:2 0 208G 0 part
├─sda3 8:3 0 176G 0 part
└─sda4 8:4 0 144G 0 part

====> dmesg logs:
[ 104.576752] type=1006 audit(1394083820.277:27): pid=844 uid=0 old auid=4294967295 new auid=1000 old ses=4294967295 new ses=1 res=1
[ 246.220015] sda: sda1 sda2 sda3 sda4
[ 246.220772] sda: p2 size 1811966464 extends beyond EOD, enabling native capacity
[ 246.222415] sda: sda1 sda2 sda3 sda4
[ 246.222541] sda: p2 size 1811966464 extends beyond EOD, truncated
[ 246.222619] sda: p3 size 1879076352 extends beyond EOD, truncated
[ 246.222673] sda: p4 size 1946186240 extends beyond EOD, truncated
[ 248.252926] sda: sda1 sda2 sda3 sda4
[ 248.253858] sda: p2 size 1811966464 extends beyond EOD, truncated
[ 248.253930] sda: p3 size 1879076352 extends beyond EOD, truncated
[ 248.253995] sda: p4 size 1946186240 extends beyond EOD, truncated
[ 456.215618] type=1006 audit(1394084171.917:28): pid=914 uid=0 old auid=4294967295 new auid=1000 old ses=4294967295 new ses=2 res=1
[ 560.438928] kjournald starting. Commit interval 5 seconds

====> Problem : I did not create the last 3 partition and they are not in size as I need, so fdisk tool needs support for the large disk

====> my guest xml

<domain type='kvm' id='93'>
  <name>spartan_b1_disktest</name>
  <uuid>4b1d8ea3-5674-c98c-dd21-a42172b46070</uuid>
  <memory unit='KiB'>2097152</memory>
  <currentMemory unit='KiB'>2097152</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='ppc64' machine='pseries'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/var/lib/libvirt/images/abdul/ubuntu_b1_disktest.qcow2'/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </disk>
    <disk type='block' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source dev='/dev/sdf'/>
      <target dev='sdf' bus='scsi'/>
      <alias name='scsi0-0-0-1'/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <controller type='usb' index='0'>
      <alias name='usb0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <controller type='scsi' index='0'>
      <alias name='scsi0'/>
      <address type='spapr-vio' reg='0x2000'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:c0:a8:7a:18'/>
      <source network='default'/>
      <target dev='vnet21'/>
      <model type='e1000'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/7'/>
      <target port='0'/>
      <alias name='serial0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </serial>
    <console type='pty' tty='/dev/pts/7'>
      <source path='/dev/pts/7'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
      <address type='spapr-vio' reg='0x30000000'/>
    </console>
  </devices>
  <seclabel type='dynamic' model='selinux' relabel='yes'>
    <label>system_u:system_r:svirt_t:s0:c51,c857</label>
    <imagelabel>system_u:object_r:svirt_image_t:s0:c51,c857</imagelabel>
  </seclabel>
</domain>

Please let me know if you need more information

Thanks