Olyan is van yum-hoz is:
[root@admin ~]# yum info yum-plugin-fs-snapshot.noarch
Loaded plugins: downloadonly, rhnplugin
This system is receiving updates from RHN Classic or RHN Satellite.
Available Packages
Name : yum-plugin-fs-snapshot
Arch : noarch
Version : 1.1.30
Release : 14.el6
Size : 27 k
Repo : rhel-x86_64-server-optional-6
Summary : Yum plugin to automatically snapshot your filesystems during updates
License : GPLv2+
Description : When this plugin is installed it will automatically snapshot any
: filesystem that is touched by the packages in a yum update or yum remove.
Működik btrfs-re és LVM-re is :-)