How to install ASMLIB from Oracle’s public YUM

There are several ways to get ASMLIB, we can download it from the OTN here, or we can download it from from ULN (Unbreakable Linux Network).

Also it comes in the the Unbreakable Linux media, but if you are not subscribed to ULN and you are not using Unbreakable Linux then most people go to the OTN, where you have to select your Linux flavor and then navigate to the correct file according to the linux kernel and then download the 3 files one by one.

I’m going to explain here how easy is to get it from Oracle’s public YUM repository (how to configure the public YUM repository?)

Once you have the public YUM enabled do as root:

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yum install oracleasm-support oracleasmlib oracleasm-`uname -r`

ET VOILA!!! it will take just one minute to complete!.

Here is an example on a CentOS 5.4

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[root@scen503 yum.repos.d]# yum install oracleasm-support oracleasmlib oracleasm-`uname -r`
..
..   skipping a bunch of things...
..
Resolving Dependencies
--> Running transaction check
---> Package oracleasm-2.6.18-194.el5.x86_64 0:2.0.5-1.el5 set to be updated
---> Package oracleasm-support.x86_64 0:2.1.4-1.el5 set to be updated
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package                      Arch       Version          Repository       Size
================================================================================
Installing:
oracleasm-2.6.18-194.el5     x86_64     2.0.5-1.el5      el5_u5_base      25 k
oracleasm-support            x86_64     2.1.4-1.el5      ol5_u6_base      87 k
Transaction Summary
================================================================================
Install       2 Package(s)
Upgrade       0 Package(s)
Total download size: 113 k
Is this ok [y/N]: y
Downloading Packages:
(1/2): oracleasm-2.6.18-194.el5-2.0.5-1.el5.x86_64.rpm   |  25 kB     00:00
(2/2): oracleasm-support-2.1.4-1.el5.x86_64.rpm          |  87 kB     00:00
--------------------------------------------------------------------------------
Total                                           133 kB/s | 113 kB     00:00
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing     : oracleasm-support                                        1/2
Installing     : oracleasm-2.6.18-194.el5                                 2/2
Installed:
oracleasm-2.6.18-194.el5.x86_64 0:2.0.5-1.el5
oracleasm-support.x86_64 0:2.1.4-1.el5
Complete!

Then just follow the installation guide…here are some quick steps to configure ASMLIB:

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[root@scen503]# oracleasm configure -i
Configuring the Oracle ASM library driver.
This will configure the on-boot properties of the Oracle ASM library
driver.  The following questions will determine whether the driver is
loaded on boot and what permissions it will have.  The current values
will be shown in brackets ('[]').  Hitting <ENTER> without typing an
answer will keep that current value.  Ctrl-C will abort.
Default user to own the driver interface []: oracle
Default group to own the driver interface []: dba
Start Oracle ASM library driver on boot (y/n) [n]: y
Scan for Oracle ASM disks on boot (y/n) [y]:
Writing Oracle ASM library driver configuration: done
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[root@scen503]# /usr/sbin/oracleasm init
Creating /dev/oracleasm mount point: /dev/oracleasm
Loading module "oracleasm": oracleasm
Mounting ASMlib driver filesystem: /dev/oracleasm

Then we need to create all disks, change ASMLIBDISK1 according to your naming conventions:

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/usr/sbin/oracleasm createdisk ASMLIBDISK1 /dev/sdb1
Writing disk header: done
Instantiating disk: done

and finally scan and list the disks

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/usr/sbin/oracleasm scandisks
/usr/sbin/oracleasm listdisks

Find more of ASM here.

Good luck!

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