My Linksys WRT54GL wireless router running on OpenWRT

Followed a workaround as discussed in Bugzilla 702953 by setting the GPU power to mid instead of using the max power

[root@fedora ~]# acpi -t
Thermal 0: ok, 78.0 degrees C

Now set the GPU power to mid

[root@fedora ~]# echo mid > /sys/class/drm/card0/device/power_profile

Temperature goes down instantly

[root@fedora ~]# echo `date` && acpi -t
Sun Dec 4 06:18:35 SGT 2011
Thermal 0: ok, 71.0 degrees C
[root@fedora ~]# echo `date` && acpi -t
Sun Dec 4 06:30:05 SGT 2011
Thermal 0: ok, 68.0 degrees C

One alternative way of monitoring temperature is by the use of lm_sensors

[root@fedora ~]# sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +83.0°C (crit = +103.0°C)

radeon-pci-0100
Adapter: PCI adapter
temp1: +84.0°C

Im running ATI Radeon HD5730 video card

It has been a long day for me.. RHCSA exam in the morning and RHCE exam in the afternoon. Finally after months of self study and 4 days on the rapid track course, i nailed both exam.
Pretty much to say that i’m so proud  on the cert. This is not the type of exam that you will just choose among the multiple choice or configure in a simulated environment. It will test your knowledge on how well you understood Redhat.
On future takers, i advised you to know the exam objectives inside and out. SELinux looks like intimidating at first, but as soon as you understand how it works,it will be a piece of cake for you

Materials/books used

RHCSA/RHCE Red Hat Linux Certification Study Guide (Exams EX200 & EX300), 6th Edition (Certification Press)  – Michael Jang
Highly recommend!!! Comes with a CD with pdfs and labs exams at the end of every chapter. My fav source of info for the exam.

Hands-on Guide to the Red Hat® Exams: RHCSA™ and RHCE® Cert Guide and Lab Manual (Certification Guide) — Damian Tommasino
Lots of errors, but hey, as soon as you pointed the errors in the book, it just shows that you know your stuffs. Used to counter check configs and setup.

RH300 RHCE Rapid Track course
Final review for the exam. It cost much but highly recommended also. It guides me and helps to fill in the gaps on what i have learned already on my home lab. Before taking the course, i advised that you first do your home work. Learn the exam objectives, build your own home lab, simulate the configs as advised on Michael and Damian’s book. In this way when you attend the course, you can ask all the questions that you have on your instructor. This is fast-paced course so make full use of it.

texastwister/OpenRHCE - GitHub - This is a beast study guide. I used this as a last minute review before taking the exam. Reading the whole week while in the train Highly recommended also

As  always, we signed the Non-disclosure Agreement so i will not divulge anything specific about the exam. I might update this blog,but will not be on the RHCE exam specific anymore.
Study!!! study!!!! study!!!!! lab!!!! lab!!!! lab!!!! simulate!!!! simulate!!!! and always follow the KISS principle..

reposted from RHCSA/RHCE Exam notes August 26 2011

[root@rhel01 ~]# pvcreate /dev/sda1
Physical volume “/dev/sda1″ successfully created

Create volume group lab_group1

[root@rhel01 ~]# vgcreate lab_group1 /dev/sda1
Volume group “lab_group1″ successfully created

In this sample i created 10MB of logical volume mount to /mnt
[root@rhel01 ~]# lvcreate -L 10M lab_group1 -n lab01
Rounding up size to full physical extent 12.00 MiB
Logical volume “lab01″ created
[root@rhel01 ~]# mkfs.ext4 /dev/lab_group1/lab01
mke2fs 1.41.12 (17-May-2010)

[root@rhel01 ~]# mount /dev/lab_group1/lab01 /mnt

[root@rhel01 ~]# df -h /mnt

Filesystem            Size  Used Avail Use% Mounted on

/dev/mapper/lab_group1-lab01

12M  1.2M   10M  11% /mnt

Extending Logical Volume using new disk

Initialize new disk

[root@rhel01 ~]# pvcreate /dev/sdb1
Wiping software RAID md superblock on /dev/sdb1
Physical volume “/dev/sdb1″ successfully created

Extend lab_group1 volume group
[root@rhel01 ~]# vgextend lab_group1 /dev/sdb1
Volume group “lab_group1″ successfully extended
[root@rhel01 ~]# vgdisplay lab_group1
— Volume group —
VG Name               lab_group1
System ID
Format                lvm2
Metadata Areas        2
Metadata Sequence No  3
VG Access             read/write
VG Status             resizable
MAX LV                0
Cur LV                1
Open LV               0
Max PV                0
Cur PV                2
Act PV                2
VG Size               56.00 MiB
PE Size               4.00 MiB
Total PE              14
Alloc PE / Size       3 / 12.00 MiB
Free  PE / Size       11 / 44.00 MiB
VG UUID               o8kB09-P20F-QLFx-UmPE-5BB5-mlu9-o867qV

Extend logical volume lab01
[root@rhel01 ~]# lvextend -L +10M /dev/lab_group1/lab01
Rounding up size to full physical extent 12.00 MiB
Extending logical volume lab01 to 24.00 MiB
Logical volume lab01 successfully resized
[root@rhel01 ~]# df -h /mnt
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/lab_group1-lab01
12M  1.2M   10M  11% /mnt
[root@rhel01 ~]# resize2fs /dev/lab_group1/lab01
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/lab_group1/lab01 is mounted on /mnt; on-line resizing required
old desc_blocks = 1, new_desc_blocks = 1
Performing an on-line resize of /dev/lab_group1/lab01 to 24576 (1k) blocks.
The filesystem on /dev/lab_group1/lab01 is now 24576 blocks long.
[root@rhel01 ~]# df -h /mnt
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/lab_group1-lab01
24M  1.2M   22M   5% /mnt

Your Score : 70

Result: PASS

Whoa i barely passed  Oracle Certified System Admin for Solaris 10 (310-202) Part 2 exam. Caught off guard on LDAP and I just hate Jumpstart questions. Already convinced myself that  i failed the exam because of the low percentile per topic, but what a relief when the examiner handed me the test printout with the word PASS.

Have to relax first this weekend before i go back to my labs.. hopefully RHCE eh

running install…

running /sbin/loader

Hit tab key in Grub and enter this at the end of the line

linux apm=off acpi=off pci=noacpi

Referrence http://www.samlesher.com/category/fedora

I’m not sure if i will add this cert on my CV.  Free cert without exam?  Bad idea i guess..