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Howto list installed packages sorted by size

Giany — Thu, 01 Oct 2009 18:57:08 +0000

rpm -qa –queryformat ‘%{SIZE} %{NAME} %{VENDOR}\n’ | sort -n -r | head -10

Check :rpm –querytags for all the tags

RPM relocatable packages

Giany — Thu, 18 Jun 2009 04:28:33 +0000

RPM has an option (–prefix) that allows users to install rpms in other directories than the default ones.
Packages that allow to be installed in other directories are called : relocatable

[root@localhost gcc]# rpm -qpi libxslt-1.1.24-4.fc11.i586.rpm | grep Relocations
Name : libxslt Relocations: /usr
[root@localhost gcc]# rpm -qi libxslt | grep Relo
Name : libxslt Relocations: /usr

So basically you can install this package in other directory.

[root@localhost gcc]# rpm -ihv libxslt-1.1.24-4.fc11.i586.rpm –prefix $PWD –force
Preparing… ########################################### [100%]
1:libxslt ########################################### [100%]
[root@localhost gcc]# ls
bin lib libxslt-1.1.24-4.fc11.i586.rpm share

For example gcc is not relocatable and installing it in an different directory is not allowd:

[root@localhost gcc]# rpm -qi gcc | grep Relo
Name : gcc Relocations: (not relocatable)
[root@localhost gcc]# rpm -Uhv gcc-4.1.2-33.i386.rpm –prefix=$PWD
error: package gcc is not relocatable

cpio and rpm2cpio howto

Giany — Thu, 18 Jun 2009 04:16:03 +0000

To extract a cpio file:

cpio -iv < cpio_file

To list the contents of a cpio file:

cpio -itv < cpio_file

To create a cpio file with all files in the current directory:

ls | cpio -o > cpio_file

To extract all files from an RPM:

rpm2cpio RPM_file | cpio -idv

To extract individual file(s) from an RPM:

rpm2cpio RPM_file | cpio -id individual_file(s)

e.g. Extracting libcrypto.so.0.9.7a and libssl.so.0.9.7a from openssl-0.9.7a-2.i386.rpm:

rpm2cpio openssl-0.9.7a-2.i386.rpm | cpio -it egrep “libcrypto.so.0.9.7a|libssl.so.0.9.7a”

-rwxr-xr-x 1 root root 992092 Feb 27 12:10 ./lib/libcrypto.so.0.9.7a
-rwxr-xr-x 1 root root 216004 Feb 27 12:10 ./lib/libssl.so.0.9.7a

rpm2cpio openssl-0.9.7a-2.i386.rpm | cpio -idv ./lib/libssl.so.0.9.7a ./lib/libcrypto.so.0.9.7a

This will extract the two files from the RPM into a ./lib subdirectory.