Description of problem: Xen guest with boot partition in qcow image file fails to boot on each second start. Version-Release number of selected component (if applicable): kernel-xen-2.6.18-194.el5xen xen-3.0.3-107 Guest kernel - kernel-2.6.18-194 How reproducible: 50% - Fail on each second boot Steps to Reproduce: 1. Install RHEL 5.4 as xen hvm guest using qcow image 2. Start guest 10x times Actual results: Each second start fails - No boot disk error message Expected results: No start fail Additional info:
I found out that this is caused by wrong handling big endian flag. This cause to switch endian on each startup - this cause only one of two starts succeed. Code for handling old images is not correct and need fix. This problem is probably even in upstream - I'm going to try it.
*** Bug 568580 has been marked as a duplicate of this bug. ***
QA verified this bug on xen-3.0.3-115.el5: 1. Create a qcow image without backing file via qcow-create. 2. Create a HVM guest with this qcow image, then install OS on it. 3. The HVM could boot successfully after OS Installation. Additional information: Creating a qcow image with backing file(raw format with OS installed), we could also boot a HVM guest with that qcow image. So change this bug to VERIFIED.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2011-0031.html