I want to remake rpm package without srpm

Question

1. Goal

   I have a rpm package, but I want to substitute several files in the rpm, and make a new rpm.

2. Backgroud

   I couldn't find srpm of a certain software. What I could download is the rpm package.

3. Operations

   a. I got the spec file from the rpm by rpmrebuild --package --notest-install -sxxx.spec xxx.rpm

   b. I got all the files in the rpm by rpm2cpio pkgname | cpio -ivd

   c. I copied the files from above into ~/rpmbuild/SOURCE, and copied the xxx.spec to ~/rpmbuild/SPECS

   d. I did rpmbuild -bb xxx.spec but I found File not found: for every file.

4. Question

   I don't know how to solve this problem. Should I make a tarball of the files from rpm2cpio pkgname | cpio -ivd and then go to modify the spec file?

   Or I must install the rpm first and then try to run rpmrebuild to create a new rpm?

   I want to know the traditional way to solve this problem, thanks very much.

Answer 1

You relly need to open up that spec and adapt it to the files it expects. The spec file itself holds the answer to most of your questions:

• The Source tag(s) will tell you the source files that are needed and their names.

• The %files section will tell you what files are expected to be in the in the rpm after building it.

I advise you to open another question and post the spec file and a list of the files you extracted wit rpm2cpio