Rolling Back an Update Post: 302637043

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Operating Systems Linux Rolling Back an Update Post 302637043 by Brandon9000 on Tuesday 8th of May 2012 09:26:55 AM

05-08-2012

Registered User

Quote:

Originally Posted by mark54g

Coming from a UNIX engineering perspective:

If your software ever tried to update other packages in this way, I would uninstall it, create an incident, and bring my legal team together to get you sued out of existence.

You handle YOUR software. You manage your own paths, and bring your own stuff to the party. If you update components on another person's system, you risk breaking it, and costing them a tremendous amount of money and pain.

That will translate into YOUR pain. Don't do it.

Manage your software, not theirs.

What you should do, is follow current best practices:

Create an installer that VERIFIES the minimum versions of software as provided by the OS. You can do that with apt, rpm, yum, whatever. When your vetting is done, you then issue message to the console, or via a log, etc that the system has been verified and may continue, and the installer continues, or that they are missing the per-requisites, and list them. By NO means should you go and get them. That is asking for trouble. You are a vendor, not a systems administrator.

The customers buy my software specifically for the purpose of managing their PCs, including installed applications, and installed applications are updated only on their specific orders. This is the exact function for which they buy my product.

Brandon9000

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yum-verify

yum-verify(1)															     yum-verify(1)

NAME

       yum verify plugin

SYNOPSIS

       yum [options] verify [package ...]

DESCRIPTION

       This plugin extends yum with some commands that give verification information on the installed system, much like rpm -V. You can change how
       the verification is done and which files it applies to.

       added yum commands are:
	* verify
	* verify-rpm
	* verify-all

       all of which take the same arguments as the list yum command, obviously you can only verify packages that are installed on the system.

       verify Is the generic verification command, and is intended to give the most useful output. It removes all false matches  due  to  multilib
	      and ignores changes to configuration files by default.

       verify-rpm
	      Is meant to be 100% compatible with rpm -V output, and any differences should be considered as bugs.

       verify-all
	      Is used to list all the differences, including some that rpm itself will ignore.

GENERAL OPTIONS

       These are the options added to yum that are available in the verify commands.  They are:

       --verify-filenames
	      This option is used to limit the filenames that the packages will perform verification.

       --verify-configuration-files
	      This  option is only useful in the generic verify command, and will enable/disable verification of files that are tagged as configu-
	      ration files.

EXAMPLES

       To do the same as rpm -Va, use:

	      yum verify-rpm

       To verify the packages starting with the name yum, use:

	      yum verify 'yum*'

       To verify the binaries that are in a bin directory, use:

	      yum verify --verify-filenames='*bin/*'

       To verify all include files, Eg. for multilib problems, use:

	      yum verify-all --verify-filenames='/usr/include/*'

SEE ALSO

       yum (8)
       yum.conf (5)
       the verify.conf file in /etc/yum/plugins.d

AUTHORS

       James Antill <james.antill@redhat.com>.

BUGS

       Currently yum-verify does not do verify-script checking or dependency checking,
       only file checking.

       Should you find any other bugs, you should first
       consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if unsuccessful
       in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org.
       To file a bug use http://bugzilla.redhat.com for Fedora/RHEL/Centos
       related bugs and http://yum.baseurl.org/report for all other bugs.

James Antill							   01 March 2008						     yum-verify(1)