Fedora 9 Error Performing Checksum
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I tried to apply the latest CentOS 5.3 updates to one of my servers last week, I noticed that I was getting a number of "Error performing checksum" errors: $ yum repolist Loaded primary.sqlite.bz2 error performing checksum plugins: fastestmirror Determining fastest mirrors Updates | 1.2 kB 00:00 primary.xml.gz | 376 kB
Yum Ignore Checksum
00:00 http://updates/repo/centos/5.3/updates/repodata/primary.xml.gz: [Errno -3] Error performing checksum Trying other mirror. primary.xml.gz | 376 kB 00:00 http://updates/repo/centos/5.3/updates/repodata/primary.xml.gz: [Errno -3] Error performing checksum Trying python-hashlib rpm other mirror. Error: failure: repodata/primary.xml.gz from Updates: [Errno 256] No more mirrors to try. After reading through the code in yumRepo.py, I noticed that the error listed above is usually generated when the checksum algorithm
[errno -3] Error Performing Checksum
specified in the repomd.xml file isn't supported. The createrepo utility uses the sha256 algorithm by default in Fedora 11 (I created my repositories on a Fedora 11 host), so I decided to create my repository using the sha1 algorithm instead: $ createrepo -v -s sha1 /var/www/html/repo/centos/5.3/updates Once I created the repository metadata using the sha1 algorithm, everything worked as expected: $ yum clean all Loaded plugins: fastestmirror Cleaning up Everything python-hashlib rpm centos 5 Cleaning up list of fastest mirrors $ yum repolist Loaded plugins: fastestmirror Determining fastest mirrors Updates | 1.0 kB 00:00 primary.xml.gz | 367 kB 00:00 Updates 634/634 repo id repo name status Updates Updates enabled : 634 repolist: 634 This debugging experience made me realize two things: 1. Having your package manager written in Python makes debugging super easy 2. Python 2.6 uses hashlib to perform checksums, and Python 2.4 uses the SHA module to perform checksums. The version of the SHA module that ships with CentOS 5.3 doesn't support sha256, which is why we get the checksum error listed above. I had a h00t debugging this issue, and am glad everything is working correctly now! Nice! matty on November 26, 2009 | Filed Under Linux Debugging, Linux Package Management 10 Comments Fouad on March 22nd, 2010 Thanks I really tried to make a local repo on RHEL5 and it didn't work but after I did as you what said. Emmett O'Grady on April 16th, 2010 Thanks for this blog! Spent quite a bit of time looking before I found this! I was going from Fedora 12 (repository) to a RHEL 5.0 client. I looked into an existing RHEL 5.0 .repo file to see what it was using for
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Primary.sqlite.bz2: [errno -3] Error Performing Checksum
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Yum Metadata Does Not Match Checksum
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error make me craze that the yum does not work for me in fedora8 for some days. Research it for a long time to fix it. Now share it. The error below: when you use yum to update or install , it will output below message "Errno -3] Error performing checksumTrying other mirror." Details in below : # yum update python b1d2a15ae36ee1cbf8009d2b0 100% |=========================| 12 MB 00:07 http://mirrors.163.com/fedora/development/x86_64/os/repodata/b1d2a15ae36ee1cbf8009d2b0101cbe686239648e24f166dfc571d35ee698cbe-primary.sqlite.bz2: [Errno -3] Error performing checksumTrying other mirror.b1d2a15ae36ee1cbf8009d2b0 100% |=========================| 12 MB 00:08 http://ubuntu.cn99.com/fedora/development/x86_64/os/repodata/b1d2a15ae36ee1cbf8009d2b0101cbe686239648e24f166dfc571d35ee698cbe-primary.sqlite.bz2: [Errno -3] Error performing checksumTrying other mirror.b1d2a15ae36ee1cbf8009d2b0 100% |=========================| 12 MB 01:20 http://mirror1.ku.ac.th/fedora/development/x86_64/os/repodata/b1d2a15ae36ee1cbf8009d2b0101cbe686239648e24f166dfc571d35ee698cbe-primary.sqlite.bz2: [Errno -3] Error performing checksumTrying other mirror.b1d2a15ae36ee1cbf8009d2b0 100% |=========================| 6.0 MB 01:58 b1d2a15ae36ee1cbf8009d2b0 100% |=========================| 12 MB 01:21 http://ftp.jaist.ac.jp/pub/Linux/Fedora/development/x86_64/os/repodata/b1d2a15ae36ee1cbf8009d2b0101cbe686239648e24f166dfc571d35ee698cbe-primary.sqlite.bz2: [Errno -3] Error performing checksumTrying other mirror.http://ftp.linux.org.tr/fedora/development/x86_64/os/repodata/b1d2a15ae36ee1cbf8009d2b0101cbe686239648e24f166dfc571d35ee698cbe-primary.sqlite.bz2: [Errno 14] HTTP Error 403: ForbiddenTrying other mirror.b1d2a15ae36ee1cbf8009d2b0 100% |=========================| 12 MB 02:43 ftp://ftp.sfc.wide.ad.jp/pub/Linux/Fedora/development/x86_64/os/repodata/b1d2a15ae36ee1cbf8009d2b0101cbe68