Kickstart - Partitioning....possible to use whole disk for LVM without creating a LVM partition

[James Harrison]

Hi,From what I remember,it depends on the use of the disk. If its a boot disk, you have to have one DOS boot partition to start the system. However, if the disk is a second disk, then the whole disk can be folded into LVM.
Thanks
James 

     On Monday, 9 March 2015, 14:18, Jerry Billing <jebi01 at handelsbanken.se> wrote:
   

 Hi

For virtual servers it is nice to usethe whole disk for LVM instead of creating a LVM partition on the disk.Then you can just increase the size of the disk in VMware and later extendthe file system instead of having to add another disk and extend.
Is it possible to use this setup inthe kickstart? What syntax do one use if it is possible?

If I have done it manually it whouldhave been like this:
pvcreate /dev/sdb (instead of usinga LVM partition called /dev/sdb1)
vgcreate DataVG /dev/sdb
lvcreate -n DataLV -l 100%FREE DataVGDataLV

At the moment I have the following partitioningscript in my kickstart file for RHEL6/7 as a pre script:

DISK_TYPE=$(parted -s /dev/sda print|grep Model | awk '{print $2}')
echo "Disk type = $DISK_TYPE"

if [ "$DISK_TYPE" = "VMware"]

then
echo "This is a VMware server,disk type=$DISK_TYPE"
cat > /tmp/partitioning.cfg <<EOF
part /boot --fstype="xfs"--size=1024 --ondisk=sda
part pv.01 --size=10240 --grow --ondisk=sda
volgroup VGos pv.01
logvol / --vgname=VGos --name=LVroot--size=10240 --grow
logvol swap --vgname=VGos --name=LVswap--recommended
part pv.02 --size=1000 --grow --ondisk=sdb
volgroup VGdata pv.02
logvol /usr/users --vgname=VGdata --name=LVhome--size=20480
logvol /app --vgname=VGdata --name=LVapp--size=1000 --grow
EOF

else
echo "This is a Physical server,disk type=$DISK_TYPE"
cat > /tmp/partitioning.cfg <<EOF
part /boot --fstype="xfs"--size=1024 --ondisk=sda
part pv.01 --size=10240 --grow --ondisk=sda
volgroup VGos pv.01
logvol / --vgname=VGos --name=LVroot--size=10240 --grow
logvol swap --vgname=VGos --name=LVswap--recommended
logvol /var --vgname=VGos --name=LVvar--size=20480
EOF

fi


Regards Jerry
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