12-20-2007
you can get the full version from /etc/issue. I don't know of any more direct way of getting the RedHat version. Most system methods will give you the kernel version.
You have to remember that RedHat is just the distribution. All the system stuff is related to the kernel and the architecture. System calls will be designed with this in mind.
You can also supposedly get the info from /proc/version, but I've never seen that match the actual distro version number, so that might be a red herring.
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LEARN ABOUT CENTOS
cache_restore
CACHE_RESTORE(8) System Manager's Manual CACHE_RESTORE(8)
NAME
cache_restore - restore cache metadata file to device or file
SYNOPSIS
cache_restore [options] -i {device|file} -o {device|file}
DESCRIPTION
cache_restore restores cache metadata created by the respective device-mapper target dumped into an XML formatted (see cache_dump(8)) file
, which optionally can be preprocessed before the restore to another device or file. If restored to a metadata device , the metadata can
be processed by the device-mapper target.
-i, --input {device|file}
Input file or device with metadata.
-o, --output {device|file}
Output file or device.
{--debug-override-metadata-version} <integer>
ONLY FOR DEBUGGING PURPOSES:
override the version stored in the metadata.
-h, --help
Print help and exit.
-V, --version
Output version information and exit.
EXAMPLE
Restores the XML formatted cache metadata on file metadata to logical volume /dev/vg/metadata for further processing by the respective
device-mapper target:
cache_restore -i metadata -o /dev/vg/metadata
DIAGNOSTICS
cache_restore returns an exit code of 0 for success or 1 for error.
SEE ALSO
cache_dump(8) cache_check(8) cache_repair(8)
AUTHOR
Joe Thornber <ejt@redhat.com>
Heinz Mauelshagen <HeinzM@RedHat.com>
Red Hat, Inc. Thin Provisioning Tools CACHE_RESTORE(8)