Filed under: *Nix, E51, IRL, Red Hat, life on the wired, oracle | Tags: EBS, linux, nfs, ORA-27054, oracle, redhat, rhel
I previously encountered this issue on my 10.2 RAC nodes running on top of HP-UX. I faced it the 2nd time when performing postclone operation on a Oracle EBS 12.0.0.5 on AIX. This time, the error popped up when I’m trying to perform postclone for Oracle EBS HCM module on a RHEL 4U6 x86-64. A reference in using nfs for Oracle can be found here. My NFS partition is mounted using :
mount 172.16.2.82:/hcmdev /u01 -o rw,bg,intr,hard, timeo=600,wsize=32768,rsize=32768,nfsver=3,tcp
I don’t have to put “noac” on the option since the RHEL node is not an RAC cluster
Ever want to run oracle’s sqlplus with crontab? Most of the time, the script won’t be executed, even though you’re already using the right user account. This is because crontab does not source the user’s environment variable when executing the command, and this cause some specific ORACLE variables not having the correct vaules, and in turn caused sqlplus to be unable to find some files required to run.
To solve this, you need to source the environment variables on your script. This is how the crontab script looks like :
$ more gstat.sh
. /home/oracle/.profile
/scripts/gstatsql.sh
and gstatsql.sh contains the sqlplus command that I want to run, while the gstat.sh is the one called by crontab. This is how my crontab looks like :
30 19 * * * /scripts/gstat.sh
With this, crontab will source the environment variables for the user oracle, and sqlplus will be able to run correctly.
Yes, I voted
While it might not get the right people to the right position, at least it help by getting rid of the wrong one
choose your destiny!
*faint*
for your future
Yes, they are holding a goddamn Facebook training. Topics includes on how to create a facebook account, retouching photos (using pirated Photoshop no doubt), etc etc
This is one of the reason that why I rarely gave my hard-earned money to beggars.
Yes, when you have to beg for money so that you can eat, the first thing that you have to buy is ofcourse.. a cigarette..
Filed under: *Nix, IRL, Ubuntu, life on the wired | Tags: gutsy, LEAP, network manager, Ubuntu, wireless
I’m currently attending a 4 days training on IBM’ Websphere Application Server. They provide us with a Windows XP loaded laptop. Being a Linux zealot, I ask whether I can use my own laptop.
They also provide a wireless connection (which also connected to the internet) secured by CISCO’s LEAP protocol.
After a lil bit of tinkering, I was able to “extract” the credential used to connect to the wireless connection, and use it on my laptop. Gutsy’s Network Manager applet is able to recognize that it’s a LEAP wireless connection, and properly provided me the option to input the correct username and password.
Day 2
As usual, I boot up my laptop, and logged in. The Network Manager applet immediately tried to connect to the LEAP secured wireless network, but somehow seems to b stuck somewhere. When I hover the mouse over the network manager icon it says “waiting for network key for wireless network xyz..” but it did not show me the windows dialog for entering the LEAP credential.
My immediate suspicion went to the the Gnome Keyring manager. Opened the keyring manager, and check the entry related to the said wireless network. I found out that instead storing the LEAP credential that I provided earlier, the keyring saved the WEP keys that the LEAP protocol provides after authenticating. I decided to delete the keyring which was related to the said wireless connection. No go. Delete all of the keyrings. Nope.
I then created a new user account, and used it to connect to the wireless connection. It worked flawlessly. I was able to choose the right wireless connection, and choose LEAP as the authentication method. This, and the way the keyring behaves when storing credential for LEAP secured wireless connection led me to the conclusion that the reconnection failed due to the Network Manager Applet was unable to automatically determine whether the stored LEAP connection requires LEAP credential. It instead assumes that the wireless connection is secured using only WEP.
I currently haven’t found a solution that can fix the way network manager applet stores the correct information when handling a LEAP authenticated wireless network. The only thing that I can do is to delete any information stored by Network Manager applet, so that it will recognize that wireless connection as a new one, and provides me with the network key window dialog. To delete the stored information do the following on a terminal:
surfer@M5Mobile:~$ cd /home/surfer/.gconf/system/networking/wireless/networks/
surfer@M5Mobile:~/.gconf/system/networking/wireless/networks$ ls -la
total 16
drwx—— 4 surfer surfer 4096 2008-10-29 11:45 .
drwx—— 3 surfer surfer 4096 2008-06-22 21:05 ..
-rw——- 1 surfer surfer 0 2008-10-29 11:41 %gconf.xml
drwx—— 2 surfer surfer 4096 2008-10-29 11:45 xyz
drwx—— 2 surfer surfer 4096 2008-10-29 11:41 MWifo1
Notice that the information for the network xyz which was secured with LEAP was stored on it’s own folder. To delete the information, simply remove the folder.
surfer@M5Mobile:~/.gconf/system/networking/wireless/networks$rm -rf xyz
Restart the laptop. After that you will be provided with the network key dialoga to choose LEAP as the authentication method, and enter the correct username and password. For convenience, you can delete the information before logging out of your laptop.
Filed under: Go Go Gadget..Stuff!!, IRL, K100D, Pentax, Photography, time out | Tags: lens, limited, pancake, Pentax, prime, SMC DA70
Finally got my hand around this little neat thing.
SMC Pentax-DA 70mm F2.4 Limited
SMC Pentax-DA 70mm F2.4 Limited
Sibling to the DA40 pancake, the lens is pretty small. Built quality, just like the DA40 or any Pentax Limited lens, is superb. The all metal construction felt sturdy, with no wobbly parts that shake or rattle. The focus ring, -the best yet out of all of my autofocus lenses- is a lot better than the DA40 with a dampened feel that together with the Quick-Shift Focus System makes manual focusing a breeze.
Naturally, given it’s focal length, the use of this lens will be portrait photography. Such as these 
ISO800
ISO800
Tack sharp when stopped down.
ISO200, F9.0
ISO 200 F4.5
Photos of the lens were taken using SMC P-FA50
Filed under: *Nix, IRL, Ubuntu | Tags: *Nix, 3D, ati, intel, nvidia, Ubuntu
To put it simply, I’m currently in the market for a new notebook. As this notebook will be the replacement for my current notebook and desktop machine, one thing that it absolutely has to support is 3D Graphic Acceleration on Linux.
Turns out, it’s not a simple as I previously thought. Currently there are three major vendor in notebook graphic solution. Intel on the low range, and Nvidia and ATI on higher end. While Intel support on Linux is amazing, the performance is not something to write home about. Since the notebook will be my main computing machine, I’d like it to have more graphic power behind it’s lid, thus leaving me to choose between Nvidia and ATI.
ATI current lineup, the ATI HD4xxx series performs quite well. Sadly, it’s not the case with ATI linux driver. Yes, there were major leap in term of support from ATI, with them providing same day support on Linux driver and opening up their specs. But what’s keeping me from upgrading to Catalyst 8.4 and above (thus keeping me on Gutsy) was the mediocre support on xvideo/texture video. Playback of xvideo flickers, (even showing black screen on some case) whether Compiz is running or not. Even worst, on 8.4, 3D output is garbage, rendering Google Earth unusable. To get xvideo works, I have to resort to using XGL, and making an XGL disabled account for 3D applications, which was now dumped in favor of AIGLX on the ATI’s 8.4 (and above) version of Catalyst.
On the other hand, Nvidia has been praised for the quality of their binary driver. My ideal notebook will be the Benq Joybook S41, which is equipped with Nvidia 8600M GS chip. But the recent development on the faulty Nvidia chip story has me thinking twice.
Let’s hope that Intel next-in-the-line Larrabee graphic chip, is able to compete with ATI and Nvidia, so we won’t have to put up with the lack of choice that we are currently facing, as well as forcing ATI and Nvidia to get their act together, and stop releasing an half ass product for their customer.
As for now, I guess if I really need a new notebook, my best bet will be purchasing an ATI equipped platform, and pray to God that ATI will churn out better driver (or FOSS community comes up with better FOSS driver) sooner or later. Or I’ll just wait for Nvidia 6-month-cycle to phase out their current buggy chip line, and wait for their newer chip to be adopted by notebook manufacturers, plus a couple of more months to wait for the price to come down to be affordable by my pocket
Any suggestion?
Filed under: *Nix, IRL, Ubuntu, life on the wired | Tags: gutsy, Ubuntu, minbar, prayer
Keeping up with the Ramadhan theme, I decided to install Minbar on my Gutsy installation. Minbar is a gnome application for muslim prayer time notification. It was included with the Ubuntu Muslim Edition along with a bunch of other application such as zekr, etc.
The newest version of minbar is already available on ubuntu repositories (mine is Gutsy), so all you have to do to install it is by using apt-get
sudo apt-get install minbar
To manually install, download the ubuntu/debian package here. You can doubleclick the deb file to start automatic installation.. ok that’s not manual install hehe…
After Minbar is installed, test it by typing minbar on a terminal
surfer@M5Mobile:~$ minbar
Next is to add Minbar to your session (more…)
I just found out how dependent my lifestyle to electricity. No, I’m not just referring to my everyday computing activity, but the entire lifestyle.
I realized this while preparing my bag for a 2 day leave from the office to accompany my mom to a trip to Pekanbaru. , visiting one of my uncle who has been sick for a very long time.
then I realized that my bag was full of chargers. There is one for the cellphone, one for the NDS, one for the iPod, and one AA battery charger for my photography kit (luckily, my K100D and the AF360FGZ flashgun share the same AA type NiMH batteries).
Mind you, I was planning to bring along my laptop. That’s one additional charger 
Gah..
