combindeltarpm - combine multiple deltarpms to a single one
] [-V version
] [-S signaturerpm
combinedeltarpm creates a new deltarpm from multiple old ones. Applying the
rsulting deltarpm has the same effect as applying each of the old ones in the
specified order. Use the -v
option to make combinedeltarpm more verbose
about its work.
combinedeltarpm normally produces a V3 format deltarpm, use the -V
to specify a different version if desired. The -z
option can be used to
specify a different compression method, the default is to use the same
compression method as used in the last of the old deltarpms.
If you want to use a different header signature you can also specify a rpm with
option which will be used as signature reference. This feature
can be used to if a deltarpm was made against an unsigned rpm which later got
The implementation of combinedeltarpm currently unpacks the add-blocks of the
deltarpms in memory, thus it needs about twice the uncompressed payload size
of the target rpm.
Michael Schroeder <email@example.com>