makedeltarpm(8) - phpMan

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



NAME
       makedeltarpm - create a deltarpm from two rpms


SYNOPSIS
       makedeltarpm  [-v] [-V version] [-z compression] [-m mbytes] [-s seqfile] [-r] [-u] oldrpm
       newrpm deltarpm
       makedeltarpm [-v] [-V version] [-z compression] [-s  seqfile]  [-u]  -p  oldrpmprint  old-
       patchrpm 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  dif-
       ferent  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.


MEMORY CONSIDERATIONS
       makedeltarpm normally needs about three to four times the size of the  rpm's  uncompressed
       payload.  You  can use the -m option to enable a sliding block algorithm that needs mbytes
       megabytes of memory. This trades memory usage with the size of the created deltarpm.  Fur-
       thermore,  the  uncompressed deltarpm payload is currently also stored in memory when this
       option is used, but it tends to be small in most cases.


SEE ALSO
       applydeltarpm(8) combinedeltarpm(8)


AUTHOR
       Michael Schroeder <mls AT suse.de>



                                             Jul 2010                             MAKEDELTARPM(8)

Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-04-26 23:38 @18.218.70.93 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)