Thursday, May 24, 2007
You can also export http_proxy variable and include the following in your .bashrc
Tuesday, May 22, 2007
The alternate cd can be downloaded from here .
Boot from the cd , and use the text mode to install. Follow the instructions till you reach the point where you are asked to choose to partition the harddrive .
1 - Do a ALT - F2 , and find out what is your external drive. Simpy execute fdisk -l.
2 - I didnt choose the LVM install , sometimes people face problems . Choose your usbdrive . it should be more like sda , sdb . Mine was the second drive so it was sdb.
3- Let the wizard do the package installation , you can do a ALT-F4 to see if its really installing the packages as at times it seems to get froze.
4- When you are asked to choose the location to install grub make sure you type/choose the name of your usbdrive . In my case it was /dev/sdb.
5 - You'll be asked to take the cd out and do a reboot after everything is done.
6- Dont take the cd out do the reboot , get into the rescue mode . You need to go through a few steps again like language settings , keyboard and all that. Finally you'll be presented with a screen to choose the partition where the root filesystem is installed / to be rescued.
Choose the correct partition , in my case it was /dev/sdb1. The installer will mount this partition can leave you at a Shell prompt . Do a ALT F 2 to open another shell and do su - t get a root shell.
7- vim /etc/initramfs-tools/modules add the following modules
8- vim /etc/mkinitramfs-tools/initramfs.conf , add the line
9- Recompile the initrd.img
mkinitramfs -o /boot/initrd.img-kernal-version
10- Edit the /boot/grub/menu.lst . Search for groot , change it to groot(hd0,0). Also just after the comment "End Default Options" change the root to (hd0,0) , repeat the same for rescue and memtest entries . Also change the entry for Windows incase you have a dual boot with windows , for this change root to (hd1,0).
Take the cd out , Reboot . Make sure you enabled boot from usb in the bios .
Modified from the original article from Ubuntu forums article for Ubuntu 5.10 Breezy Badger
Saturday, May 05, 2007
Installed linphone on two different linux distros and tried to establish connectivity , worked like a charm ; voice clarity was pretty decent as well. The most interesting thing was to see the packets captured through tcpdump/ethereal , the SIP messages and then the RTP packets with 20ms worth of payload data ( valid for ulaw/alaw).
Calculation of packet size for G.711 ( two versions alaw/ulaw )
bitrate(kbps) * packet size(ms) = packet size (bytes)
This was my first experiment with voip , it went really well so im happy .
I picked FreeBSD 6.2 and a spare HP Vectra box we had in our lab.The whole installation process was kinda different from most of the linux distros i have experienced so far.
The complete CLI based BSD installation can make you feel little uncomfortable if ur too used to Redhat's Anaconda. Sometimes i felt like im running in circles, configuring and choosing the same install parameteres twice, but well everything takes its little sweet time so in a few mins i got used to the interface. Harddrive partitioning was a little confusing but glad figured a way without getting messed and made a clean Standard Install. Choosing the packages is difficult , but worse was yet to come. Installer repeatedly asked for switching the cd's , i was kinda pissed with that part but then cant really help it.
The naming conventions for the drives are totally different in BSD , the same applies for the ethernet interfaces. Ethernet interfaces were named like dc01,dc0 , fxp0 .I had a single SATA hardrive on the HP box , BSD gave it a strange name /dev/ad0s1a unlike the usual hda0,hdb0 and so on.
The installation finally got completed now it was time boot up the box and put it on network. I struggled to bring the network , only after getting too disappointed i came to know about the "netif " , the network startup script in /etc/rc.d. So the network was up , now how to setup routes, again BSD has its own way of doing things, a different "route" syntax than usual linux box. Also BSD gives you a default csh instead of a regular bash.
Finally everything was set. The routes , IP Adresssing , DNS and i smiled , at least didnt had to switch the cd's again for something i had missed.
bsd01 # uname -a
FreeBSD bsd01 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Fri Jan 12 11:05:30 UTC 2007 email@example.com:/usr/obj/usr/src/sys/SMP i386
It took me such a long time to get started with guitar, i wish i did it when i was in highschool or university maybe. I hope its not too late now.
I go for guitar sessions twice a week. Its been like two months now since i started , i must say its not too hard to learn but again its not like learning some new programming language or reading a book. It really needs your quality time and attention on daily basis.
If you love music, there's no greater feeling than being able to make your own music, play your own songs . Just sitting in front of TV watching & listening songs like a passive observer doesnt even come closer to pleasure of actively playing it. Once you learn it , you'll be able to appreciate the music you experience in a lot better way , at least now i have a greater sense of respect for people who make music , its not easy at all .
Playing guitar is all about how nicely you can change the chords , its an art that you will only learn with time; there are no short cuts. But then its something that will remain a part of you forever , its worth all that hardwork . Right body posture and holding the notes correctly will always help you learn things quicky.
Well so far ive learned a few songs , and some chords like A, E, D . I hope i get past this A7 chord soon , been practising for a week and im not getting any better.
Its beautiful , its called "Sleep Walk" by Johnny and Santo , Thanks a lot my good friend