今天在linux(个人采用debian,其他系统类似)上安装一个包的时候遇到了如下的错误: 重点有这么一行错误: Certificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕 Readingpackagelists。。。DonerootDESKTOPR5MSHA1:aptgetupdateErr:1https:mirrors。aliyun。comdebianbullseyeInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕Err:2https:mirrors。aliyun。comdebiansecuritybullseyesecurityInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕Err:3https:mirrors。aliyun。comdebianbullseyeupdatesInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕Err:4https:mirrors。aliyun。comdebianbullseyebackportsInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕Readingpackagelists。。。DoneW:https:mirrors。aliyun。comdebiandistsbullseyeInRelease:Nosystemcertificatesavailable。Tryinstallingcacertificates。W:https:mirrors。aliyun。comdebiansecuritydistsbullseyesecurityInRelease:Nosystemcertificatesavailable。Tryinstallingcacertificates。W:https:mirrors。aliyun。comdebiandistsbullseyeupdatesInRelease:Nosystemcertificatesavailable。Tryinstallingcacertificates。W:https:mirrors。aliyun。comdebiandistsbullseyebackportsInRelease:Nosystemcertificatesavailable。Tryinstallingcacertificates。W:Failedtofetchhttps:mirrors。aliyun。comdebiandistsbullseyeInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕W:Failedtofetchhttps:mirrors。aliyun。comdebiansecuritydistsbullseyesecurityInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕W:Failedtofetchhttps:mirrors。aliyun。comdebiandistsbullseyeupdatesInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕W:Failedtofetchhttps:mirrors。aliyun。comdebiandistsbullseyebackportsInReleaseCertificateverificationfailed:ThecertificateisNOTtrusted。Thecertificateissuerisunknown。Couldnothandshake:Errorinthecertificateverification。〔IP:219。144。101。241443〕W:Someindexfilesfailedtodownload。Theyhavebeenignored,oroldonesusedinstead。 解决方案,CA证书aptgetinstallreinstallcacertificates 然后重新运行aptgetupdate:rootDESKTOPR5MSHA1:aptgetupdateHit:1https:mirrors。aliyun。comdebianbullseyeInReleaseGet:2https:mirrors。aliyun。comdebiansecuritybullseyesecurityInRelease〔48。4kB〕Hit:3https:mirrors。aliyun。comdebianbullseyeupdatesInReleaseGet:4https:mirrors。aliyun。comdebianbullseyebackportsInRelease〔49。0kB〕Get:5https:mirrors。aliyun。comdebianbullseyecontribSources〔43。2kB〕Get:6https:mirrors。aliyun。comdebianbullseyenonfreeSources〔81。2kB〕Get:7https:mirrors。aliyun。comdebianbullseyemainSources〔8,633kB〕Get:8https:mirrors。aliyun。comdebianbullseyenonfreeamd64Packages〔97。7kB〕Get:9https:mirrors。aliyun。comdebianbullseyenonfreeTranslationen〔92。4kB〕Get:10https:mirrors。aliyun。comdebianbullseyecontribamd64Packages〔50。6kB〕Get:11https:mirrors。aliyun。comdebianbullseyecontribTranslationen〔46。9kB〕Get:12https:mirrors。aliyun。comdebiansecuritybullseyesecuritymainSources〔169kB〕Get:13https:mirrors。aliyun。comdebiansecuritybullseyesecuritymainamd64Packages〔200kB〕Get:14https:mirrors。aliyun。comdebiansecuritybullseyesecuritymainTranslationen〔129kB〕Get:15https:mirrors。aliyun。comdebianbullseyeupdatesmainSources〔4,812B〕Get:16https:mirrors。aliyun。comdebianbullseyebackportsmainSources〔358kB〕Get:17https:mirrors。aliyun。comdebianbullseyebackportscontribSources〔2,868B〕Get:18https:mirrors。aliyun。comdebianbullseyebackportsnonfreeSources〔4,552B〕Get:19https:mirrors。aliyun。comdebianbullseyebackportsmainamd64Packages〔361kB〕Get:20https:mirrors。aliyun。comdebianbullseyebackportsmainTranslationen〔297kB〕Get:21https:mirrors。aliyun。comdebianbullseyebackportsnonfreeamd64Packages〔14。3kB〕Get:22https:mirrors。aliyun。comdebianbullseyebackportsnonfreeTranslationen〔26。6kB〕Get:23https:mirrors。aliyun。comdebianbullseyebackportscontribamd64Packages〔4,400B〕Get:24https:mirrors。aliyun。comdebianbullseyebackportscontribTranslationen〔4,320B〕Fetched10。7MBin2min3s(86。9kBs)Readingpackagelists。。。Done