1. create ur own packages, put it into www home directory. let clients can visit from network

such as /var/www/html/my_repo

http://my_ip/my_repo even ftp://my_ip/my_repo

  1. create u repo files on clients


cat /etc/yum.repos.d/ceph.repo


name=My Cluster Repo $basearch



gpgcheck=0 # if u read further, we should change it to “1” for security.

  1. yum search some_pkgs

u should get ur repo now.

advanced for GPG signature.

  1. #gpg –gen-key

# if don’t have gpg , run yum install -y gnupg

gpg (GnuPG) 1.4.5; Copyright (C) 2008 Free Software Foundation, Inc.

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:

(1) DSA and Elgamal (default)

(2) DSA (sign only)

(5) RSA (sign only)

Your selection? 1

DSA keypair will have 1024 bits.

ELG keys may be between 1024 and 4096 bits long.

What keysize do you want? (2048) ****

Requested keysize is 2048 bits

Please specify how long the key should be valid.

0 = key does not expire

= key expires in n days w = key expires in n weeks m = key expires in n months y = key expires in n years Key is valid for? (0) **** Key does not expire at all Is this correct? (y/N) **y** You need a user ID to identify your key; the software constructs the user ID from the Real Name, Comment and Email Address in this form: “Heinrich Heine (Der Dichter) <[email protected]uesseldorf.de>” Real name: **Edy Liu** Email address: **[email protected]** Comment: Test the GPG sign You selected this USER-ID: “Edy Liu (Test the GPG sign) <[email protected]>” Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? **O** You need a Passphrase to protect your secret key. can’t connect to \`/root/.gnupg/S.gpg-agent’: No such file or directory gpg-agent[8794]: You may want to update to a newer pinentry gpg-agent[8794]: You may want to update to a newer pinentry We need to generate a lot of random bytes. It is a good idea to perform some other action (type on the keyboard, move the mouse, utilize the disks) during the prime generation; this gives the random number generator a better chance to gain enough entropy. **u can type the keyboard ……..wait a looooooong time.** gpg: key E69DC4CC marked as ultimately trusted public and secret key created and signed. gpg: checking the trustdb gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model gpg: depth: 0 valid: 1 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 1u pub 1024D/E69DC4CC 2009-07-03 Key fingerprint = DB61 772F 74D1 BC7A 2F10 E586 9390 14B2 E69D C4CC uid Edy Liu (Test the GPG sign) <[email protected]> sub 2048g/1CD071D3 2009-07-03 **Now we have our key, that we can use to sign RPM.** \# have a check gpg –list-keys /root/.gnupg/pubring.gpg ———————— pub 1024D/E69DC4CC 2009-07-03 uid Edy Liu (Test the GPG sign) <[email protected]> sub 2048g/1CD071D3 2009-07-03 edit ~/.rpmmacros %_signature gpg %\_gpg\_path /root/.gnupg %\_gpg\_name Edy Liu (Test the GPG sign) <[email protected]> %_gpgbin /usr/bin/gpg cd /var/www/html/my_repo rpm –addsign *.rpm 5. Make an export of our public key, so users can import it for use with the Repository. gpg –export -a “Edy Liu” > /var/www/html/RPM-GPG-KEY-ENLAMP rpm –import http://my_ip/RPM-GPG-KEY-ENLAMP ****\*\\*\*Very IMPORTANT\*\*\**** rm -rf /var/www/html/my_repo/repodata/ regenerate the repodata again: createrepo /var/www/html/my_repo** 6. Now yum install -y … Maybe some errors: Package does not match intended download yum clean all # on the clients. yum install -y …