creating Ubuntu based VM Template

Mainly you will need to create Ubuntu VM manually and then do the following steps to the template before converting it to Template

1. create new Ubuntu vm and while installing it make sure you do the following steps
   • make the boot partition is separate from other partitions (you can choose any file system for it)
   • remaining partitions should be lvm based storage be on lvm based storage

         so that after you are done installing the following when you do lvdisplay
     lvdisplay
       --- Logical volume ---
       LV Name                /dev/ubuntu/root
       VG Name                ubuntu
       LV UUID                FRarW6-pk6o-BibE-dkIy-3c8O-U1l9-en27mC
       LV Write Access        read/write
       LV Status              available
       # open                 1
       LV Size                19.39 GiB
       Current LE             4964
       Segments               2
       Allocation             inherit
       Read ahead sectors     auto
       - currently set to     256
       Block device           254:0
     
       --- Logical volume ---
       LV Name                /dev/ubuntu/swap_1
       VG Name                ubuntu
       LV UUID                s4PNXH-vtLx-U09C-Ggzn-2wg6-vbFC-qReidn
       LV Write Access        read/write
       LV Status              available
       # open                 1
       LV Size                376.00 MiB
       Current LE             94
       Segments               1
       Allocation             inherit
       Read ahead sectors     auto
       - currently set to     256
       Block device           254:1

     and df output is

     df -h
     Filesystem            Size  Used Avail Use% Mounted on
     /dev/mapper/ubuntu-root
                            20G   14G  4.8G  74% /
     tmpfs                 751M     0  751M   0% /lib/init/rw
     udev                  737M   76K  737M   1% /dev
     tmpfs                 751M     0  751M   0% /dev/shm
     /dev/xvda1            228M   16M  201M   8% /boot
     
     

     Note: the sizes are not important

• now we need to make scripts run automatically on system startup ,

get the script file: xenicastart.sh from your xenica package (or you can get it from HERE) and put inside /etc/ so that you will have the file locations as follows

/etc/xenicastart.sh

assign the executable mode to the file by the command

chmod +x /etc/xenicastart.sh

Open the file /etc/rc.local in edit mode and put the line

/etc/xenicastart.sh

inside /etc/rc.local

• now make sure xentools installed
• install in the vm parted package

  apt-get install parted

• do fdisk -ul and write down the number you get in this section

  fdisk -ul 
  dev/xvda1   *        2048      499711      248832   83  Linux
  Partition 1 does not end on cylinder boundary.
  /dev/xvda2          501758    16775167     8136705    5  Extended

  in my case it was 16775167 (the end of /dev/xvda2 partition)

• now open the script at /etc/xenicastart.sh and edit the line

(echo n; echo p; echo 3; echo 16775168; echo ; echo t; echo 3; echo 8e; echo w) | fdisk -u /dev/xvda

to the number you got in step 5 +1

• convert to template