How can I verify that a downloaded Debian ISO image is correct?

2

1

I've just downloaded debian-504-i386-businesscard.iso from a mirror and wanted to be sure that the file is OK.

The Debian CD FAQ says:

For HTTP or FTP downloads, use the md5sum utility to calculate the checksums of the files you downloaded, then compare them to the checksums in the MD5SUMS files which are distributed alongside the jigdo files of official releases.

"jigdo files of official releases" is a link to a download area but there are only md5sums for the live versions.

Am I missing something or are the md5sums for all Debian ISOs (except live CDs) really missing?

Ludwig Weinzierl

Posted 2010-06-24T15:15:10.683

Reputation: 7 695

Answers

4

Check the MD5SUM file. You will see

d359c8e33e29b2bc3833046b0625a02f  debian-504-i386-CD-1.iso
b2916f09a44b7632e44c2e02b0a8abc6  debian-504-i386-CD-10.iso
6fb72493a15a52ec331d970529bce349  debian-504-i386-CD-11.iso
3d674d36e13361e2a63b13c11f9b7648  debian-504-i386-CD-12.iso
189ee9b7dae9676e311502bd854fb626  debian-504-i386-CD-13.iso
13f1860db17101fb2ea7c9577607f7a6  debian-504-i386-CD-14.iso
de9ba8cfaf1a6a230e09784f07ce9f39  debian-504-i386-CD-15.iso
ef06f05acb4aca82627b88f5e9bec53f  debian-504-i386-CD-16.iso
67c84fde644d8ada29ccf9af1fd5446a  debian-504-i386-CD-17.iso
cbf1821fd25040133f4a353bb73a4d83  debian-504-i386-CD-18.iso
c79037209733e5db2771f860084fe439  debian-504-i386-CD-19.iso
407803df6857653eb2aa8236e9504b4c  debian-504-i386-CD-2.iso
1d4a2c5afeb0a0b90f1a25de74fc3d75  debian-504-i386-CD-20.iso
412f28f98829176ace48113dae1f1bcd  debian-504-i386-CD-21.iso
dbd3f26f02aa53d0125d3af149244ed2  debian-504-i386-CD-22.iso
2cffc7baea1a42497c31346e9d78237e  debian-504-i386-CD-23.iso
6c2d473b10e5e851d90e4914c501c34d  debian-504-i386-CD-24.iso
e0e65a5548b2a85665497184e0bd3fd3  debian-504-i386-CD-25.iso
4ce331d420044026cfd22c29137345ec  debian-504-i386-CD-26.iso
c0976b25b0b1035f8df396170c905083  debian-504-i386-CD-27.iso
439926e65066241b553b6d4e00a38fe4  debian-504-i386-CD-28.iso
ab4dc35c042e832e048d8f3fa4d9d2f0  debian-504-i386-CD-29.iso
13d4ab80b1fd1a8a2743c1f2f2ecddce  debian-504-i386-CD-3.iso
1d11d4d0d3976643c91119026df55e3f  debian-504-i386-CD-30.iso
e287369bee280f4efed4dd683c8fcf86  debian-504-i386-CD-31.iso
c8b5402c2aa9e1348558535d26b15877  debian-504-i386-CD-4.iso
1c3ecc23395155de7ee4171d10c1a061  debian-504-i386-CD-5.iso
46986bc17b3cab1b33433a6efb411dc4  debian-504-i386-CD-6.iso
df97f52c3469f849ff14a3d07eba284c  debian-504-i386-CD-7.iso
2851aced30c59c8f0db7e6156d47fe0e  debian-504-i386-CD-8.iso
07cfc2b463956fafa457cd65ddef6d14  debian-504-i386-CD-9.iso
f0bd15d662ad1aa751c70c1cc01fe76d  debian-504-i386-businesscard.iso
fd0424739359671f840cb87c14304bc6  debian-504-i386-kde-CD-1.iso
96d01d5f287c93d252c0ad73006b5ab8  debian-504-i386-netinst.iso
37084a93a23d11520534dc4a90324981  debian-504-i386-xfce+lxde-CD-1.iso
4427c95516d7f156a365e422c0e8e19c  debian-update-5.0.4-i386-CD-1.iso
cea1038fdfbc17e0ad743f6ffe9c8300  debian-update-5.0.4-i386-CD-2.iso
7b76a81bf893ebc363b9a348ee638b9a  debian-update-5.0.4-i386-CD-3.iso
f16e5019dec307b3453ec65818ce04a3  debian-update-5.0.4-i386-CD-4.iso
70e9c02883bd557d6bc864068621d925  debian-update-5.0.4-i386-CD-5.iso
f38abc68dc9dae0cad226e3da73a9c5e  debian-update-5.0.4-i386-CD-6.iso

Specifically

f0bd15d662ad1aa751c70c1cc01fe76d  debian-504-i386-businesscard.iso

Josh K

Posted 2010-06-24T15:15:10.683

Reputation: 11 754

I must be blind. Where exactly is the MD5SUM file? It's not in http://cdimage.debian.org/debian-cd/5.0.4/i386/bt-cd/

– Ludwig Weinzierl – 2010-06-24T16:30:41.877

@Ludwig: I found it in another directory. I figured that {distro}/{arch}/{iso-cd}.

– Josh K – 2010-06-24T16:56:12.157

Thanks Josh, it's really there and the md5 matches the file I downloaded:-) – Ludwig Weinzierl – 2010-06-24T17:12:44.600

Asked: 2010-06-24T15:15:10.683

Viewed: 1 250 times

Active: 2010-06-24T15:18:14.360