I'm also getting similar problems, although in my installation, even though there are errors, it seems to finish. (I'm using centos 6.4 and emperor release and I added the "defaults http and https" to the sudoers file for the ia1 node, though I didn't do so for the the ia2 and ia3 nodes.) So is everything "ok"? If so, why are there error statements? Here are the excerpt of the logs:
command that I executed --> ceph-deploy install ia1 ia2 ia3
First portion of the log -->
[ceph_deploy.cli][INFO ] Invoked (1.3.2): /usr/bin/ceph-deploy install ia1 ia2 ia3
[ceph_deploy.install][DEBUG ] Installing stable version emperor on cluster ceph hosts ia1 ia2 ia3
[ceph_deploy.install][DEBUG ] Detecting platform for host ia1 ...
[ia1][DEBUG ] connected to host: ia1
[ia1][DEBUG ] detect platform information from remote host
[ia1][DEBUG ] detect machine type
[ceph_deploy.install][INFO ] Distro info: CentOS 6.4 Final
[ia1][INFO ] installing ceph on ia1
[ia1][INFO ] Running command: sudo yum -y -q install wget
[ia1][DEBUG ] Package wget-1.12-1.8.el6.x86_64 already installed and latest version
[ia1][INFO ] adding EPEL repository
[ia1][INFO ] Running command: sudo wget http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
[ia1][ERROR ] --2013-11-22 13:40:52-- http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
[ia1][ERROR ] Resolving dl.fedoraproject.org... 209.132.181.23, 209.132.181.24, 209.132.181.25, ...
[ia1][ERROR ] Connecting to dl.fedoraproject.org|209.132.181.23|:80... connected.
[ia1][ERROR ] HTTP request sent, awaiting response... 200 OK
[ia1][ERROR ] Length: 14540 (14K) [application/x-rpm]
[ia1][ERROR ] Saving to: `epel-release-6-8.noarch.rpm.1'
[ia1][ERROR ]
[ia1][ERROR ] 0K .......... .... 100% 158K=0.09s
[ia1][ERROR ]
[ia1][ERROR ] 2013-11-22 13:40:52 (158 KB/s) - `epel-release-6-8.noarch.rpm.1' saved [14540/14540]
[ia1][ERROR ]
[ia1][INFO ] Running command: sudo rpm -Uvh --replacepkgs epel-release-6*.rpm
[ia1][ERROR ] warning: epel-release-6-8.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY
[ia1][DEBUG ] Preparing... ##################################################
[ia1][DEBUG ] epel-release ##################################################
[ia1][INFO ] Running command: sudo rpm --import https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc
[ia1][INFO ] Running command: sudo rpm -Uvh --replacepkgs http://ceph.com/rpm-emperor/el6/noarch/ceph-release-1-0.el6.noarch.rpm
[ia1][DEBUG ] Retrieving http://ceph.com/rpm-emperor/el6/noarch/ceph-release-1-0.el6.noarch.rpm
[ia1][DEBUG ] Preparing... ##################################################
[ia1][DEBUG ] ceph-release ##################################################
[ia1][INFO ] Running command: sudo yum -y -q install ceph
[ia1][ERROR ] warning: rpmts_HdrFromFdno: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY
[ia1][ERROR ] Importing GPG key 0x0608B895:
[ia1][ERROR ] Userid : EPEL (6) <epel@xxxxxxxxxxxxxxxxx>
[ia1][ERROR ] Package: epel-release-6-8.noarch (installed)
[ia1][ERROR ] From : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
[ia1][ERROR ] Warning: RPMDB altered outside of yum.
[ia1][INFO ] Running command: sudo ceph --version
[ia1][DEBUG ] ceph version 0.72.1 (4d923861868f6a15dcb33fef7f50f674997322de)
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