Bug 757647

Summary: Can't unpack initrd.img from RHEL OS image
Product: Red Hat Enterprise Linux 6 Reporter: Jack Zhou <zhoudaxia>
Component: anacondaAssignee: Anaconda Maintenance Team <anaconda-maint-list>
Status: CLOSED NOTABUG QA Contact: Release Test Team <release-test-team>
Severity: high Docs Contact:
Priority: unspecified    
Version: 6.2CC: mgracik
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-11-28 09:02:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Jack Zhou 2011-11-28 08:47:44 UTC 
Description of problem:
  I need to add some extra files into initrd.img so that implement customized OS deployment. My designed script unpack initrd.img from RHEL OS image via "gzip -dc" command, add some files, then pack it. It works very well in previous RHEL version. But for RHEL 6.2, the "gzip -dc" execution gets error. The initrd.img is not in gzip format.

Version-Release number of selected component (if applicable):
  anaconda for RHEL 6.2

How reproducible:
  always

Steps to Reproduce:
  Use "gzip -dc isolinux/initrd.img > /tmp/ramdisk" to unpack the initrd.img
  
Actual results:
  initrd.img can't be unpacked. It is not in gzip format. 

Expected results:
  Add some extra files into initrd.img and implement customized OS deployment.

Additional info:
Comment 1 Martin Gracik 2011-11-28 09:02:12 UTC 
Use "xz -dc". The compression was changed to xz.