centos yum更新失败

7/5/2023 linuxyum
bash-4.2# sudo yum makecache
Loaded plugins: fastestmirror, ovl
Determining fastest mirrors

base: mirrors.aliyun.com
extras: mirrors.aliyun.com
updates: mirrors.aliyun.com
base | 3.6 kB 00:00
extras | 2.9 kB 00:00
https://dl.bintray.com/tigervnc/stable/el7/RPMS/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: dl.bintray.com; Unknown error"
Trying other mirror.
One of the configured repositories failed (TigerVNC-el7),
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:

applescript
Copy

 1. Contact the upstream for the repository and get them to fix the problem.

 2. Reconfigure the baseurl/etc. for the repository, to point to a working
    upstream. This is most often useful if you are using a newer
    distribution release than is supported by the repository (and the
    packages for the previous distribution release still work).

 3. Run the command with the repository temporarily disabled
       yum --disablerepo=tigervnc-el7 ...

 4. Disable the repository permanently, 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 tigervnc-el7

    or
        subscription-manager repos --disable=tigervnc-el7

 5. Configure the failing repository to be skipped, if it is unavailable.
    Note that yum will try to contact the repo. when it runs most 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=tigervnc-el7.skip_if_unavailable=true

    failure: repodata/repomd.xml from tigervnc-el7: [Errno 256] No more mirrors to try.
    https://dl.bintray.com/tigervnc/stable/el7/RPMS/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: dl.bintray.com; Unknown error"
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

在用centos的时候,更换yum源,在创建新缓存的时候报错。

这里直接禁用tigervnc-el7即可yum-config-manager --disable tigervnc-el7之后重新创建即可