APPLYDELTARPM man page on Oracle

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       applydeltarpm - reconstruct an rpm from a deltarpm

       applydeltarpm [-v] [-p] [-r oldrpm] deltarpm newrpm
       applydeltarpm -c|-C deltarpm
       applydeltarpm [-c|-C] -s sequence
       applydeltarpm -i deltarpm

       applydeltarpm applies a binary delta to either an old rpm or to on-disk
       data to re-create a new rpm. The old rpm can be specified with  the  -r
       option, if no rpm name is provided on-disk data is used. You can use -p
       to make applydeltarpm print the percentage of completion, or -v to make
       it more verbose about its operation.

       The  second an third form can be used to check if the reconstruction is
       possible. It may fail if the on-disk data got  changed  (deltarpms  are
       created	in  a  way  that  config  file	changes	 do not matter) or the
       deltarpm does not match the rpm the delta was generated	with.  The  -c
       option  selects	full  (i.e.  slow)  on-disk  checking, whereas -C only
       checks if the filesizes have not changed.

       Instead of a full deltarpm a sequence id	 can  be  given	 with  the  -s
       sequence option. Such an id contains all the information that is needed
       to do reconstruction checking.

       Finally information about a deltarpm can be printed with the -i option.

       applydeltarpm was written to work on systems with limited  memory.   It
       uses  a	paging	algorithm to keep the size of in-core data low and not
       bring the system in an out-of-memory situation.

       applydeltarpm returns 0 if the rpm could be recreated or	 the  checking
       succeeded,  it returns 1 and prints an error message to stderr if some‐
       thing failed.

       makedeltarpm(8), rpm(8)

       Michael Schroeder <>

				   Feb 2005		      APPLYDELTARPM(8)

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