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raw image going from 1.2Gb to 60Gb when transferring

asked 2014-07-02 06:56:58 -0500

Deeptanshu gravatar image

updated 2014-07-02 17:20:34 -0500

smaffulli gravatar image

I have downloaded one qemu image of ubantu listed below. I have converted this image to RAW with the option given below. Actual size of the RAW image is 1.2 GB but when i am trying to upload it through glance it is showing 60 GB as actual image is created with 60 GB. When i am copying this image to other location it is transferring 60 GB image file. Please suggest any solution so it will occupy only actual size i.e 1.2 GB.

 qemu-img convert -f qcow2 -O raw ubuntu-precise_x86_64_60G.qcow2 Ubantu.img

 407M    ubuntu-precise_x86_64_60G.qcow2

 Raw image size  1.2G    Ubantu.img

Size while copying the image to other location 61G Ubantu.img

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something went wrong somewhere... have you looked at logs? tried converting it again? update the question as you find out more details.

smaffulli gravatar imagesmaffulli ( 2014-07-02 17:21:48 -0500 )edit

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answered 2014-07-05 07:28:36 -0500

dachary gravatar image

ubuntu-precise_x86_64_60G.qcow2 is a compressed 60GB disk that is expanded into 60GB of actual space when converted to raw. If this is not what you want, you can get a smaller image from the Ubuntu repositories and upload it with

 glance add name="ubuntu-precise-12.04" disk_format=raw container_format=bare < precise-server-cloudimg-amd64-disk1.img
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Asked: 2014-07-02 06:56:58 -0500

Seen: 158 times

Last updated: Jul 05 '14