Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 688329

Summary:	Support for limited ability to upgrade/install RPMs during runtime
Product:	Red Hat Enterprise Linux 6	Reporter:	Perry Myers <pmyers>
Component:	ovirt-node	Assignee:	Alan Pevec <apevec>
Status:	CLOSED WONTFIX	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.0	CC:	acathrow, apevec, bsarathy, cshao, gouyang, leiwang, moli, ovirt-maint, ycui
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-08-11 16:04:04 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	688330

Description Perry Myers 2011-03-16 19:57:58 UTC

Description of problem:
In some very limited use cases (including support situations) it may be necessary to upgrade or install RPMs during RHEVH runtime.  These modifications would be non-persistent since RHEVH filesystem is backed by an ISO image, but for some usages this is ok.

In order to support this in a controlled manner we need:
* wrapper around rpm command that remounts the rootfs as read/write
* does a dry run of the rpm install to determine what files would be installed 
  or modified and uses this info and a policy file to determine if the operation
  should be permitted
* creates a manifest file with sha1 hashes so that the pre and post hashes can 
  be compared

Certain rpms would never be applicable for this operation, such as the kernel and low level storage RPMs (lvm2, dmm)