| rpm -ivh apache2.i386.rpm | Install package apache2 already download on the system. |
| rpm -i ftp://ftp.mynitor.com/apache-3.i386.rpm | You can do it with http:// as well. Simple of installing RPM from remote server. |
| rpm -ev apache2 | Uninstall apache2 package.. |
| rpm -Uvh apache2-1.i386.rpm | Upgrade an existing package. You can also do rpm -Uvh ftp/http to fetch pkg. |
| rpm –verify apache2 | List files that did not pass the verify tests. |
| rpm -qpl apache2.i386.rpm | List location where RPM would be installed. |
| rpm -ql apache2 | List location of files on the system where the RPM has already been installed. |
| rpm -qi apache2 | This one is my favorite. It displays pkg information such as version, release, installed date and much more. |
| rpm -qf /etc/apache2/conf/httpd.conf | This will tell you which package the file httpd.conf belongs to. |
| rpm -qa | List all installed RPM packages on the system. |
| rpm -qa –last | List all the recently installed RPM packages. |
| rpm -qR apache2.i386.rpm | Outputs dependencies for the RPM. |
# yum install iscsi-initiator-utils
or
$ sudo apt-get install open-iscsi
# vi /etc/iscsi/iscsid.conf
node.session.auth.username = My_ISCSI_USR_NAME
node.session.auth.password = MyPassword
discovery.sendtargets.auth.username = My_ISCSI_USR_NAME
discovery.sendtargets.auth.password = MyPassword
# /etc/init.d/iscsi start
# iscsiadm -m discovery -t sendtargets -p 192.168.1.5
# /etc/init.d/iscsi restart
# fdisk -l
We need several packages to create yum repository, you can install them from CD/DVD disks or ISO images.
# yum install createrepo wget
# cd /mnt # createrepo .
Mount your CD/DVD or ISO images
DVD Disk or DVD ISO image
* If you have DVD disk, please mount dvd-rom first, and then create yum repository:
# mkdir /mnt/dvd/
# mount /dev/cdrom /mnt/dvd/
* If you use DVD iso, please copy it to the system, and then create yum repository:
# mkdir /mnt/dvd/
# mount -o loop /root/rhel5.1-dvd.iso /mnt/dvd
CD images
If you have multiple CD image files, you should mount all iso images and then create yum repository.
* Mount all iso images:
# mkdir -p /mnt/{1,2,3,4,5}
# mount -o loop rhel5.1-disc1.iso /mnt/1
# mount -o loop rhel5.1-disc2.iso /mnt/2
# mount -o loop rhel5.1-disc3.iso /mnt/3
# mount -o loop rhel5.1-disc4.iso /mnt/4
# mount -o loop rhel5.1-disc5.iso /mnt/5
Install necessary package
* Find and install ‘createrepo’ package in /mnt directory:
# find /mnt -iname ‘createrepo*’
/mnt/dvd/Server/createrepo-0.4.11-3.el5.noarch.rpm
# rpm -ivh /mnt/dvd/Server/createrepo-0.4.11-3.el5.noarch.rpm
Create yum repository
Create metadata
* Create yum repository:
# cd /mnt/
# createrepo .
Define yum repository
Create yum repository define file /etc/yum.repos.d/dvdiso.repo:
[MailRepo]
name=MailRepo
baseurl=file:///mnt/
enabled=1
gpgcheck=0
Test it
# yum clean all
# yum list
If ‘yum list’ list all packages in DVD/CD disks or ISO images, it works. 
rpm -qa --last