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Bug 1100959 - Make the image virtual size as small as possible.
Summary: Make the image virtual size as small as possible.
Keywords:
Status: CLOSED DUPLICATE of bug 1100962
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: guest-images
Version: 6.5
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Joey Boggs
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 977028 1016787
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-05-24 14:10 UTC by Jaroslav Henner
Modified: 2014-06-19 13:56 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
: 1100962 (view as bug list)
Environment:
Last Closed: 2014-06-19 13:56:03 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Jaroslav Henner 2014-05-24 14:10:11 UTC 
Description of problem:
In the bug BZ#1045242 Perry requested to increase the virtual disk size to 16GB, because in that time, the image was not able to resize the root partition, thus neither the root FS. This is now possible with RHEL 6.5 (BZ#977028) as well as with 7.0 images, so now it would certainly be better to have the image virtual size as small as possible to make it fit as small flavor as possible. Note it cannot be shrunk easily, but can be easily enlarged. [1]

The minimum requirements for rhel 6 is 1G [2].

[1] Resizing the virtual disk size
`--> qemu-img info rhel-guest-image-6.5-20140522.0.x86_64.qcow2
image: rhel-guest-image-6.5-20140522.0.x86_64.qcow2
file format: qcow2
virtual size: 17G (18253611008 bytes)
disk size: 293M
cluster_size: 65536
.-(/tmp)----------------------------------------------------------------------(jhenner@veverka)-
`--> qemu-img resize rhel-guest-image-6.5-20140522.0.x86_64.qcow2 -1G
qemu-img: This image format does not support resize
.-(/tmp)----------------------------------------------------------------------(jhenner@veverka)-
`--> qemu-img resize rhel-guest-image-6.5-20140522.0.x86_64.qcow2 +1G
Image resized.
.-(/tmp)----------------------------------------------------------------------(jhenner@veverka)-
`--> qemu-img info rhel-guest-image-6.5-20140522.0.x86_64.qcow2
image: rhel-guest-image-6.5-20140522.0.x86_64.qcow2
file format: qcow2
virtual size: 18G (19327352832 bytes)
disk size: 293M
cluster_size: 65536 


[2] http://www.redhat.com/resourcelibrary/articles/articles-red-hat-enterprise-linux-6-technology-capabilities-and-limits




Version-Release number of selected component (if applicable):
rhel-guest-image-6.5-20140522.0

How reproducible:
always

Steps to Reproduce:
1. qemu-img info rhel-guest-image-6.5-20140522.0.x86_64.qcow2                          
2.
3.

Actual results:
qemu-img info rhel-guest-image-6.5-20140522.0.x86_64.qcow2                          
image: rhel-guest-image-6.5-20140522.0.x86_64.qcow2
file format: qcow2
virtual size: 16G (xxx bytes)
disk size: 293M
cluster_size: 65536


Expected results:
virtual size: 1G
Comment 2 Jaroslav Henner 2014-05-24 14:45:40 UTC 
Am I too dare and is it too late to have this in 6.5?
Comment 3 Joey Boggs 2014-06-19 13:56:03 UTC 

*** This bug has been marked as a duplicate of bug 1100962 ***
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