What's in this directory?

These are files containing the installer and other software for the Debian GNU/Linux operating system. The files in this directory are designed to work on both 32-bit and 64-bit PCs (i386 and amd64).

How do I use these files?

The files here are in "jigdo" format. Use jigdo tools to download the contents of the complete ISO image files from what's here and a normal Debian mirror. You should end up with an exact copy of each ISO image as though you'd downloaded it directly via HTTP or FTP.

Once you have downloaded all the ISO images you want, you will typically need to write them to installation media.

What size and type of media will I need?

The images described here are sized to be written to writeable DVD media at a minimum, but may be written to larger media if needed. For extra convenience, these images may also be written directly to a USB stick. So long as your computer will boot directly from that USB stick, it should start the Debian installer that way. The first DVD in this set is also deliberately limited in size so it should fit on a standard-sized 4GB USB stick.

How can I verify my download is correct and exactly what has been created by Debian?

There are files here (SHA1SUMS, SHA256SUMS, etc.) which contain checksums of the images. These checksum files are also signed - see SHA1SUMS.sign, SHA256SUMS.sign, etc. Once you've downloaded an image, you can check:

• that its checksum matches that expected from the checksum file; and
• that the checksum file has not been tampered with.

For more information about how to do these steps, read the verification guide.

Non-free Firmware

This is an official Debian image build and so only includes Free Software.

For convenience for some users, there is an alternative unofficial netinst CD build which includes non-free firmware for extra support for some awkward hardware. Look under /cdimage/unofficial/non-free/cd-including-firmware/ if you need that CD image instead.

Other questions?

See the Debian CD FAQ for lots more information about Debian CDs and installation.

The images here were put together by the Debian CD team , using debian-cd and other software.

	Name	Last modified	Size
	Parent Directory		-
	MD5SUMS	2017-04-09 22:51	84
	MD5SUMS.sign	2017-04-09 23:00	819
	SHA1SUMS	2017-04-09 22:51	92
	SHA1SUMS.sign	2017-04-09 23:00	819
	SHA256SUMS	2017-04-09 22:51	116
	SHA256SUMS.sign	2017-04-09 23:00	819
	SHA512SUMS	2017-04-09 22:51	180
	SHA512SUMS.sign	2017-04-09 23:00	819
	debian-stretch-DI-rc3-i386-amd64-source-DVD-1.jigdo	2017-04-09 06:47	117K
	debian-stretch-DI-rc3-i386-amd64-source-DVD-1.template	2017-04-09 06:47	38M