retry download failed in mozilla firefox

I am trying to download the iso of backtrack 5 r3 from my mozilla firefox. It is a 3.1GB file. Due to power failure, the download stopped some times in the middle. However, I used the mozilla's retry option to resume my download. It worked for sometimes. It stopped one more time because of power failure. And then, I tried the same mozilla retry. Unfortunately, it is not working.

So far, the download is complete upto 2.9 GB. I am able to see the partially downloaded file in my download as BT5R3-GNOME-32.iso.part. Please help me resume my download.

UPDATE 1:

I browsed a little and I found as if there is another way of resuming failed download. I decided to go with wget. I tried the following command:

wget -c -O /home/ramvignesh/Downloads/BT5R3-GNOME-32.iso.parts

But it isn't working. It just starts the download right from the beginning. The download time is horrendous for me. It says the remaining download time is 4days 11hours.

2 Answers

First of all make a copy backup from your BT5R3-GNOME-32.iso.part file, next:

Rename your copied BT5R3-GNOME-32.iso.part file to BT5R3-GNOME-32.iso and switch to Downloads directory cd /home/ramvignesh/Downloads which is your downloaded BT5R3-GNOME-32.iso file (being renamed) is there, then try to resume it by the following wget command:

wget -c ""

or use below command directly after renaming it to BT5R3-GNOME-32.iso instead:

wget -c "" -O /home/ramvignesh/Downloads/BT5R3-GNOME-32.iso

Found one more solution for this.

• create a new folder (say old part) inside your downloads folder
• move the .part file to the old part folder created
• now open your browser and start a new download of the same file to be downloaded
• pause it after some seconds. you'll now have a fresh .part file inside your downloads folder
• replace it with the .part file inside our old part folder
• resume the paused download from the browser and get the download going

That's it.