1APPLYDELTARPM(8)            System Manager's Manual           APPLYDELTARPM(8)
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NAME

6       applydeltarpm - reconstruct an rpm from a deltarpm
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SYNOPSIS

10       applydeltarpm [-v] [-p] [-r oldrpm] deltarpm newrpm
11       applydeltarpm -c|-C deltarpm
12       applydeltarpm [-c|-C] -s sequence
13       applydeltarpm -i deltarpm
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DESCRIPTION

17       applydeltarpm applies a binary delta to either an old rpm or to on-disk
18       data to re-create a new rpm. The old rpm can be specified with  the  -r
19       option, if no rpm name is provided on-disk data is used. You can use -p
20       to make applydeltarpm print the percentage of completion, or -v to make
21       it more verbose about its operation.
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23       The  second an third form can be used to check if the reconstruction is
24       possible. It may fail if the on-disk data got  changed  (deltarpms  are
25       created  in  a  way  that  config  file  changes  do not matter) or the
26       deltarpm does not match the rpm the delta was generated  with.  The  -c
27       option  selects  full  (i.e.  slow)  on-disk  checking, whereas -C only
28       checks if the filesizes have not changed.
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30       Instead of a full deltarpm a sequence id  can  be  given  with  the  -s
31       sequence option. Such an id contains all the information that is needed
32       to do reconstruction checking.
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34       Finally information about a deltarpm can be printed with the -i option.
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MEMORY CONSIDERATIONS

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

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

50       makedeltarpm(8), rpm(8)
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AUTHOR

54       Michael Schroeder <mls@suse.de>
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58                                   Feb 2005                   APPLYDELTARPM(8)
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