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Archive for August, 2010

Boot Image Recovery on a Cisco ASA Firewall

August 27, 2010 8 comments

I was performing some basic maintenance on a Cisco ASA5510 firewall. When I was finished performing the maintenance I proceeded to reload the device. Next thing you know the firewall went into a boot loop, not good! So I hooked up a console cable to figure out what was going on. It appears that somehow my software image had become corrupted and the ASA would not boot.

I was getting the following error message:

Error 15: File not found

Unable to boot an image

So I fired up the WiFi hotspot on my Motorola Droid and proceeded to download the appropriate software image from the Cisco Support website.

Here are the required steps to recover from a missing or corrupt boot image:

  • Connect a console cable from the ASA to your computer and open up a serial connection using Putty
  • Disable any software firewall on your computer
  • Install TFTP server software on your computer – I used Solarwinds TFTP server
  • Place the Cisco software image in the TFTP-Root folder (asa821-k8.bin) and start the TFTP service
  • Assign a static IP address to your computer – I used 192.168.20.1 (an address outside of my existing subnet)
  • Connect an Ethernet cable between your computer and port 0/0 on the ASA
  • Power off the ASA then power it back on
  • Press the escape key to boot into ROMMON mode
  • Enter the following commands in the ASA (the first part of these commands must be in caps)

    rommon #1> ADDRESS=192.168.20.10
    rommon #2> SERVER=192.168.20.1
    rommon #3> GATEWAY=192.168.20.1
    rommon #4> IMAGE=asa821-k8.bin
    rommon #5> PORT=Ethernet0/0

  • These commands assign an IP address of 192.168.20.10 to port 0/0 on the ASA and tell it to look at your TFTP server 192.168.20.1 and to select the ASA software image.
  • Next, execute the command to transfer the image from the TFTP server to the ASA

    rommon #6> tftp

Once the file transfer completes reboot the ASA and cross your fingers. If everything works the device should successfully reload and your existing configuration should remain intact.

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2010 Camaro SS Cold Air Intake & Long Tube Header Installation

August 2, 2010 1 comment

Now that the Camaro is almost a week old, I figured it is never too soon for additional horsepower, right? For the first round of mods I chose to install a Roto-Fab cold air intake system (CAI), and a set of Kooks long tube headers. I followed the rule that if you allow your engine to breathe easier it will better produce more power. The LS3 is no exception to this rule.

I decided to install the CAI first. This is about the easiest mod that one can perform; installation takes less than one hour to complete.

Here is a virgin photo

I have to give GM credit here. The engineers did what appears a pretty good job on this stock intake system. There are no severe bends or restrictions at all, and the lower part of the air filter housing contains a large port to suck in cold air. I was beginning to wonder if I would see any gains by installing the Roto-Fab setup. After reading several forums, and looking at dyno test results for the Roto-Fab, people are seeing peak gains of 15 hp and 11.7 ft/lb torque. The average hp and torque gains were 11hp and 11 ft/lb across the RPM range….sold!

Here is the engine with the factory air intake system removed

Now for installation of the Roto-Fab system

Finished!

Now for the more difficult of the two mods, the Kooks long tube header installation. I won’t go into all of the details of installing these headers, but basically I followed the instructions found here: How To: Install Header System on a 2010 Camaro SS

Here are the stock exhaust manifolds/cats removed from the vehicle

Here is a side by side – Stock vs. the Kooks long tube header with off-road connection pipe

The overall length of the Kooks header with off-road connection pipe is the exact same as the stock setup. This allows you to bolt right up to the factory exhaust (which I did) or install an aftermarket exhaust with no cutting or welding required. This setup removes the catalytic converters from the exhaust system, so custom programing of the PCM is necessary to tell the computer to not to set a check engine light due to the missing cats. Even if you choose to go with the catted version of these headers, a custom tune is required to allow you to utilize the full potential of these headers.

Here is a photo of the driver side header installed

Conclusion:

This combination of CAI, headers, and custom tuning is good for about 50 RWHP! At idle and when cruising, you can hardly tell the difference in the sound of the exhaust. However when you mash the go pedal it becomes apparent that the headers are installed, the exhaust comes alive. As for a cat back exhaust, I am probably going to stick with the stock setup for now. You get 2.5″ true dual exhaust with an H pipe from the factory. Adding an aftermarket cat back exhaust only adds 5-10 additional horsepower, but makes the exhaust considerably louder. I kind of like the sleeper factor with the stock setup anyway!

2010 Camaro SS

August 2, 2010 1 comment

On Monday July 26th, I took delivery of my 2010 Camaro! My original plan was to wait until spring 2011 to purchase, but GM was closing out the 2010’s and I couldn’t pass up the price. My only requirement was that the car had a manual transmission. There were only two 2010’s with manual transmissions left in the region; both of those vehicles were red, so I got red!

Here are the details:

2010 Camaro 1SS Base package

RS Package – adds body color roof ditch moldings, HID headlamps, and RS unique tail lamps

Polished 20″ Aluminum Wheels

Boston Acoustics sound system – this needs serious improvement… I’m sure that this will be the topic of several blog posts in the future

The car drives and feels great. The six speed manual feels good with relatively smooth shifts. Wow it feels good to drive a stick again! I have been taking it easy trying to break the vehicle in properly – this is no easy task! Look for posts in the future to see what progress has been made on the car.

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