One of the configured repositories failed (Unknown),
and yum doesn't have enough cached data to continue. At this point
the only
safe thing yum can do is fail. There are a few ways to work "fix"
this:
1. Contact the upstream for the repository and get them to fix
the problem.
2. Reconfigure the baseurl/etc. for the repository, to point t
o a working
upstream. This is most often useful if you are using a newe
r
distribution release than is supported by the repository (a
nd the
packages for the previous distribution release still work).
3. Disable the repository, so yum won't use it by default. Yum
will then
just ignore the repository until you permanently enable it
again or use
--enablerepo for temporary usage:
yum-config-manager --disable <repoid>
4. Configure the failing repository to be skipped, if it is un
available.
Note that yum will try to contact the repo. when it runs mo
st commands,
so will have to try and fail each time (and thus. yum will
be be much
slower). If it is a very temporary problem though, this is
often a nice
compromise:
yum-config-manager --save --setopt=<repoid>.skip_if_una
vailable=true
Cannot find a valid baseurl for repo: base/7/x86_64
uj5u.com熱心網友回復：
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我是在下載dicker的是個出現這個的
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