Cobbler/koan missing file problem.

asked 2011-12-05 09:12:34 -0500

goozbach
63 ●3 ●3 ●6

I have a cobbler server (Cobbler 2.3.1) running on a Fedora16 box.

This cobbler server has an rsync mirror of Centos-6.0(x86_64)

When I do an install using koan I get this error in anaconda:

IOError: [Errno 2] No such file or directory: '/mnt/sysimage/var/cache/yum/anaconda-CentOS-201107091641.x86_64/15e391ebee579435eae835cd0aefff94a74e7773-primary.sqlite.gz'

I jumped into the shell on the installing guest and found these files in /var/cache/yum/

-bash-4.1# ls -R /mnt/sysimage/var/cache/yum/
/mnt/sysimage/var/cache/yum/:
anaconda-CentOS-201107091641.x86_64  source-1

/mnt/sysimage/var/cache/yum/anaconda-CentOS-201107091641.x86_64:
8fa85f9f49e38a8607566f402f7b1cce63427661-2a7e0c1da38a40e2961c0cec6acca8b8446d974b1fc055216ebde88bb4a19eb9-c6-x86_64-comps.xml
cachecookie
packages
repomd.xml

/mnt/sysimage/var/cache/yum/anaconda-CentOS-201107091641.x86_64/packages:

/mnt/sysimage/var/cache/yum/source-1:
15e391ebee579435eae835cd0aefff94a74e7773-primary.sqlite.gz
8fa85f9f49e38a8607566f402f7b1cce63427661-2a7e0c1da38a40e2961c0cec6acca8b8446d974b1fc055216ebde88bb4a19eb9-c6-x86_64-comps.xml
cachecookie
packages
repomd.xml

/mnt/sysimage/var/cache/yum/source-1/packages:

When I run the same koan command against a Centos6 based cobbler server(Cobbler 2.3.1) the install finishes without issue.

The only differences between cobbler servers are the following:

Centos6.0 running the working cobbler server
Centos6 repo imported via iso image loopback mounted on working server
Centos6 repo imported via rsync mirror on non-working server

Any ideas?

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answered 2011-12-12 12:30:39 -0500

goozbach
63 ●3 ●3 ●6

I finally found the bug responsible.

https://bugzilla.redhat.com/show_bug.cgi?id=766235

It's likely not to be fixed.

There are two things you can do to fix if if you run into the same problem:

1) upgrade the version of yum on your centos6.0 box to the version which ships with centos6.1

or

2) manually generate an appropriate repomod.xml and comps.xml after running createrepo

run createrepo with --compress-type=bz2 flag (and maybe also -s sha)

copy the non-compressed comps.xml to a temp file

cp repodata/<SHA>-comps.xml repodata/temp-comps.xml

gzip the temp comps.xml file
```
gzip repodata/temp-comps.xml
```

move the temp-comps.xml.gz file to it's proper location by first figuring out it's sha1 sum

sha1sum repodata/temp-comps.xml.gz
mv repodata/temp-comps.xml.gz repodata/<SHA1SUM from above>-comps.xml.gz

modify the parts of the file repodata/repomd.xml which reference the broken file ('group_gz' section) to match the newly created file from the last step.