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I'd like to install Ubuntu in my computer. I learned that if I install an alternate version, I can choose the .deb packages I need. But when I log in the system, I always face the problem that there are some packages I should have installed which I have not.

I tried a desktop version, and it ran well. So it must be that I made some mistakes when installed it.

So where can I get a list of .deb packages, and what are these .debs used for?

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Welcome Laurie Li , you mentioned about some packages you wanted to install but had not , can you please specify which ones you wanted. – atenz Jul 28 '12 at 17:33

.deb packages are basically the installable Applications packages ( similar to Windows .exe ) packed by and for Ubuntu.

The Ubuntu Alternate Cd version avails advanced mode of installation suited for experienced and professional users to control every part of Installation.

For viewing the .deb packages and the application related to them , you can visit

For installing through Alternate CD , you can view this Illustrated guide

For installing other packages that you thought was missing , you can search for them in Ubuntu software center available in the Dash menu or by pressing super+A keys , or through Ubuntu Applications Web page.

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.deb files are debian package files. These are often used to install programs. Alternate versions (of Ubuntu) are just Ubuntu with a different list of .debs. Ubuntu Software Center installs these .deb files. And welcome to Ask Ubuntu!

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Also, see Ubuntu minimal and must have packages and search Ask Ubuntu for "minimal CD". – user25656 Jul 28 '12 at 16:51

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