combinedeltarpm(8) [centos man page]

COMBINEDELTARPM(8)					      System Manager's Manual						COMBINEDELTARPM(8)

NAME

       combindeltarpm - combine multiple deltarpms to a single one

SYNOPSIS

       combinedeltarpm [-v] [-V version] [-z compression] [-S signaturerpm] olddeltarpms...  newdeltarpm

DESCRIPTION

       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 option 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 the -S 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 signed.

MEMORY CONSIDERATIONS

       The implementation of combinedeltarpm currently unpacks the add-blocks of the deltarpms in memory, thus it needs  about	twice  the  uncom-
       pressed payload size of the target rpm.

SEE ALSO

       makedeltarpm(8) applydeltarpm(8)

AUTHOR

       Michael Schroeder <mls@suse.de>

								     May 2005							COMBINEDELTARPM(8)

MAKEDELTARPM(8) 					      System Manager's Manual						   MAKEDELTARPM(8)

NAME

       makedeltarpm - create a deltarpm from two rpms

SYNOPSIS

       makedeltarpm [-v] [-V version] [-z compression] [-s seqfile] [-r] [-u] oldrpm newrpm deltarpm
       makedeltarpm [-v] [-V version] [-z compression] [-s seqfile] [-u] -p oldrpmprint oldpatchrpm oldrpm newrpm deltarpm

DESCRIPTION

       makedeltarpm  creates  a  deltarpm from two rpms. The deltarpm can later be used to recreate the new rpm from either filesystem data or the
       old rpm. Use the -v option to make makedeltarpm more verbose about its work (use it twice to make it even more verbose).

       If you want to create a smaller and faster to combine "rpm-only" deltarpm which does not work with filesystem data, specify the -r option.

       makedeltarpm normally produces a V3 format deltarpm, use the -V option 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 new rpm.

       The -s option makes makedeltarpm write out the sequence id to the specified file seqfile.

       If  you	also  use  patch rpms you should use the -p option to specify the rpm-print of oldrpm and the created patch rpm. This option tells
       makedeltarpm to exclude the files that were not included in the patch rpm but are not byteswise identical to the ones in oldrpm.

       makedeltarpm can also create an "identity" deltarpm by adding the -u switch. In this case only one rpm has to  be  specified.  An  identity
       deltarpm can be useful to just replace the signature header of a rpm or to reconstruct a rpm from the filesystem.

SEE ALSO

       applydeltarpm(8) combinedeltarpm(8)

AUTHOR

       Michael Schroeder <mls@suse.de>

								     Feb 2005							   MAKEDELTARPM(8)