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** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Tags added: trusty
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https://bugs.launchpad.net/bugs/1288564
Title:
[beta1] tool fdisk do not support disks with more than 65535 cylinders
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
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
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