# DATABLOCK TYPE and CDROM TYPE Creating a Virtual Machine

**URL:** <https://forum.opennebula.io/t/datablock-type-and-cdrom-type-creating-a-virtual-machine/340>\
**Category:** Product Support\
**Created:** [March 3, 2015, 1:23pm UTC](https://forum.opennebula.io/t/datablock-type-and-cdrom-type-creating-a-virtual-machine/340 "2015-03-03T13:23:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jiang\_Yu](https://avatars.discourse-cdn.com/v4/letter/j/ee7513/32.png) [@Jiang\_Yu](https://forum.opennebula.io/u/Jiang_Yu)\
**Post date:** [March 3, 2015, 1:23pm UTC](https://forum.opennebula.io/t/datablock-type-and-cdrom-type-creating-a-virtual-machine/340/1 "2015-03-03T13:23:45Z")

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DATABLOCK TYPE and CDROM TYPE,Both types can create a template to create a virtual machine, but how can the two types of virtual machine to install the system?

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**Author:** ![anandharaj](https://avatars.discourse-cdn.com/v4/letter/a/6bbea6/32.png) [@anandharaj](https://forum.opennebula.io/u/anandharaj)\
**Post date:** [March 4, 2015, 7:36am UTC](https://forum.opennebula.io/t/datablock-type-and-cdrom-type-creating-a-virtual-machine/340/2 "2015-03-04T07:36:13Z")

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Please explain in details as i do not understand your question correctly.