Bug 143261 - redundant data in subsequent src rpm packages
Summary: redundant data in subsequent src rpm packages
Alias: None
Product: Fedora
Classification: Fedora
Component: distribution (Show other bugs)
(Show other bugs)
Version: 3
Hardware: All Linux
Target Milestone: ---
Assignee: Bill Nottingham
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2004-12-17 19:54 UTC by Tom Mitchell
Modified: 2014-03-17 02:51 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2004-12-17 21:04:37 UTC
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Tom Mitchell 2004-12-17 19:54:12 UTC
Description of problem:

SRC packages commonly contain mostly redundant data from revision to
revision.  Since kernel is the most commonly looked at and downloaded
src I will start here. The problem may apply to any series of updated

for example all current kernel-2.6.9-1.*_FC3.src.rpm packages 
have linux-2.6.9.tar.bz2 (36261440 bytes) in common.  

Version-Release number of selected component (if applicable):

I was comparing 

How reproducible:

Steps to Reproduce:
1. use rpm2cpio and extract the contents of
into their own dir.

2.compare linux-2.6.9.tar.bz2 in both dirs.
 $ md5sum *-orig/linux*tar.bz2
 e921200f074ca97184e150ef5a4af825  678-orig/linux-2.6.9.tar.bz2
 e921200f074ca97184e150ef5a4af825  681-orig/linux-2.6.9.tar.bz2

  Note that the two packages contain ~36MB of bz2 compressed
data that is identical from update to update to update....
Actual results:
  I found redundant data to an extent I did not expect.

Expected results:
  I did not expect to see this level of redundancy.

Additional info:
   good folks reduced one duplication of kernel src with FC3
   and recent FC2 updates.   There is an opportunity to save
   bandwidth and disk space if the linux-2.6.9.tar.bz2
   file was packaged in something like kernel-base and distribute 
   the patches and spec/ build stuff in kernel-update

I suspect that any change to this has non trivial impact on the user
community so I do not wish to rush in....

I have no clear vision of a fix, I just wish to point out this
duplication of bits so a brighter mind than I has the chance to
inventing a way to tidy this up for FC4 or FC5....


Comment 1 Tom Mitchell 2004-12-17 19:55:04 UTC
speller in subject ;-(

Comment 2 Dave Jones 2004-12-17 20:35:53 UTC
as you mentioned, this affects a wider array of packages than just the
kernel. Assigning to distribution, as we should get a ruling common
across all packages imo.

Comment 3 Bill Nottingham 2004-12-17 21:04:37 UTC
This is probably not going to get fixed in the current RPM context any
time soon.

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