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dnf: Peers Certificate issuer is not recognized

asked 2017-10-05 15:58:57 -0500

afodata gravatar image

updated 2017-10-06 16:35:23 -0500

I can't do anything with dnf on a Fedora 25 system.

when I do dnf -v update I I get the following error:
cachedir: /var/cache/dnf
Loaded plugins: protectedpackages, download, copr, config-manager, generatecompletioncache, builddep, Query, playground, needs-restarting, noroot, debuginfo-install, reposync
DNF version: 1.1.10
Cannot download '
64': Cannot prepare internal mirrorlist: Curl error (60): Peer certificate cannot be authenticated with given CA certificates for [Peer's Certificate issuer is not recognized.].
Error: Failed to synchronize cache for repo 'fedora'

I tried many things that did not help:
dnf clean all
dnf -v makecache
dnf update --refresh
dnf --refresh upgrade

Then I tried adding ... sslverify=0 ... the the config file and all sorts of wackiness ensued (revive Fedora ?!?) ... so I aborted and did not continue. Results below:

dnf --verbose install wkhtmltopdf
cachedir: /var/cache/dnf
Loaded plugins: Query, protectedpackages, builddep, debuginfo-install, copr, reposync, generatecompletioncache, config-manager, needs-restarting, download, noroot, playground
DNF version: 1.1.10
reviving: 'fedora' can be revived.
not found updateinfo for: Fedora 25 - x86
reviving: failed for 'updates', mismatched sha256 sum.
Fedora 25 - x8664 - Updates 4.4 MB/s | 25 MB 00:05
fedora: using metadata from Tue Nov 15 13:49:18 2016.
updates: using metadata from Wed Oct 4 16:39:55 2017.
Last metadata expiration check: 0:00:06 ago on Thu Oct 5 15:31:31 2017.
Completion plugin: Generating completion cache...
--> Starting dependency resolution
---> Package wkhtmltopdf.x86
64 0.12.3-2.fc24.1 will be installed

6 Oct Update:
Strange, yesterday I got this ...
dnf update
Error: Failed to synchronize cache for repo 'updates'
... and today I got this ...
dnf update
Error: Failed to synchronize cache for repo 'fedora'

How can I fix?

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what is the time and date of your computer?

aeperezt gravatar imageaeperezt ( 2017-10-05 18:02:56 -0500 )edit

right now is Thu Oct 5 18:38:46 CDT 2017

afodata gravatar imageafodata ( 2017-10-05 18:39:01 -0500 )edit

Wow. Nobody interested? Anybody there?

afodata gravatar imageafodata ( 2017-10-09 15:29:34 -0500 )edit

1 Answer

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answered 2018-12-13 23:48:54 -0500

updated 2018-12-14 11:30:44 -0500

it's a useful in fedora 29 / 25

A. reference document

B. Run command - Super User

 dnf clean all
 dnf update -v

Loaded plugins: builddep, config-manager, copr, debug, debuginfo-install, download, generate_completion_cache, needs-restarting, playground, repoclosure, repodiff, repograph, repomanage, reposync DNF version: 4.0.9 cachedir: /var/cache/dnf

sometimes it's a happening a unplugged cable...or power off me..! it's a still effect in fedora 29 and lower system. written by simmon

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Asked: 2017-10-05 15:58:57 -0500

Seen: 541 times

Last updated: Dec 14 '18