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Solve the problem that centos 6.4 cannot use yum install.

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Solve the problem that centos 6.4 cannot use yum install.

After centos 6.4 is created on qingcloud, you may encounter errors when installing emacs:

[Plain] view plaincopyprint?
  1. # Yuminstallemacs
  2. Loadedplugins: fastestmirror
  3. Determiningfastestmirrors
  4. Error: Cannotretrievemetalinkforrepository: epel. Pleaseverifyitspathandtryagain

The solution is to update ca-certificates.

[Plain] view plaincopyprint?
  1. # Yumupgradeca-certificates -- disablerepo = epel
  2. Loadedplugins: fastestmirror
  3. Loadingtransferspeedsfromcachedhostfile
  4. * Base: mirrors.skyshe.cn
  5. * Extras: ftp.sjtu.edu.cn
  6. * Rpmfusion-free-updates: ftp.sjtu.edu.cn
  7. * Rpmfusion-nonfree-updates: ftp.sjtu.edu.cn
  8. * Updates: mirrors.skyshe.cn
  9. Base | 3.7kB00: 00
  10. Base/primary_db | 4.6MB00: 04
  11. Emacs | 2.9kB00: 02
  12. Emacs/primary_db | 37kB00: 01
  13. Extras | 3.4kB00: 00
  14. Extras/primary_db | 37kB00: 00
  15. Rpmfusion-free-updates | 2.7kB00: 00
  16. Rpmfusion-free-updates/primary_db | 272kB00: 00
  17. Rpmfusion-nonfree-updates | 2.2kB00: 00
  18. Rpmfusion-nonfree-updates/primary_db | 65kB00: 00
  19. Updates | 3.4kB00: 00
  20. Updates/primary_db | 5.2MB00: 05
  21. SettingupUpgradeProcess
  22. ResolvingDependencies
  23. --> Runningtransactioncheck
  24. ---> Packageca-certificates.noarch0: 2010.63-3. el6_1.5willbeupdated
  25. ---> Packageca-certificates.noarch0: 2015.2.6-65.0.1.el6 _ 7 willbeanupdate
  26. --> ProcessingDependency: p11-kit-trust> = 0.18.4-2 forpackage: ca-certificates-2015.2.6-65.0.1.el6_7.noarch
  27. --> ProcessingDependency: p11-kit> = 0.18.4-2 forpackage: ca-certificates-2015.2.6-65.0.1.el6_7.noarch
  28. --> Runningtransactioncheck
  29. ---> Packagep11-kit.x86_640: 0.18.5-2. el6_5.2willbeinstalled
  30. --> ProcessingDependency: libtasn1.so. 3 (LIBTASN1_0_3) (64bit) forpackage: p11-kit-0.18.5-2.el6_5.2.x86_64
  31. --> ProcessingDependency: libtasn1.so. 3 () (64bit) forpackage: p11-kit-0.18.5-2.el6_5.2.x86_64
  32. ---> Packagep11-kit-trust.x86_640: 0.18.5-2. el6_5.2willbeinstalled
  33. --> Runningtransactioncheck
  34. ---> Packagelibtasn1.x86 _ 640: 2.3-6. el6_5willbeinstalled
  35. --> ProcessingConflict: p11-kit-trust-0.18.5-2.el6_5.2.x86_64conflictsnss <3.14.3-33
  36. --> RestartingDependencyResolutionwithnewchanges.
  37. --> Runningtransactioncheck
  38. ---> Packagenss. x86_640: 3.14.0.0-12. el6willbeupdated
  39. --> ProcessingDependency: nss = 3.14.0.0-12. el6forpackage: nss-tools-3.14.0.0-12.el6.x86_64
  40. --> ProcessingDependency: nss = 3.14.0.0-12. el6forpackage: nss-sysinit-3.14.0.0-12.el6.x86_64
  41. ---> Packagenss. x86_640: 3.21.0-0.3.el6 _ 7 willbeanupdate
  42. --> ProcessingDependency: nss-util> = 3.21.0forpackage: nss-3.21.0-0.3.el6_7.x86_64
  43. --> ProcessingDependency: nss-softokn (x86-64)> = 3.14.3-22 forpackage: nss-3.21.0-0.3.el6_7.x86_64
  44. --> ProcessingDependency: nspr> = 4.11.0forpackage: nss-3.21.0-0.3.el6_7.x86_64
  45. --> ProcessingDependency: libnssutil3.so (NSSUTIL_3.21) (64bit) forpackage: nss-3.21.0-0.3.el6_7.x86_64
  46. --> ProcessingDependency: libnssutil3.so (NSSUTIL_3.17.1) (64bit) forpackage: nss-3.21.0-0.3.el6_7.x86_64
  47. --> ProcessingDependency: libnssutil3.so (NSSUTIL_3.15) (64bit) forpackage: nss-3.21.0-0.3.el6_7.x86_64
  48. --> Runningtransactioncheck
  49. ---> Packagenspr. x86_640: 4.9.2-1. el6willbeupdated
  50. ---> Packagenspr. x86_640: 4.11.0-0.1.el6 _ 7 willbeanupdate
  51. ---> Packagenss-softokn.x86_640: 3.12.9-11. el6willbeupdated
  52. ---> Packagenss-softokn.x86_640: 3.14.3-23. el6_7willbeanupdate
  53. --> ProcessingDependency: nss-softokn-freebl (x86-64)> = 3.14.3-23. el6_7forpackage: nss-softokn-3.14.3-23.el6_7.x86_64
  54. ---> Packagenss-sysinit.x86_640: 3.14.0.0-12. el6willbeupdated
  55. ---> Packagenss-sysinit.x86_640: 3.21.0-0.3.el6 _ 7 willbeanupdate
  56. ---> Packagenss-tools.x86_640: 3.14.0.0-12. el6willbeupdated
  57. ---> Packagenss-tools.x86_640: 3.21.0-0.3.el6 _ 7 willbeanupdate
  58. ---> Packagenss-util.x86_640: 3.14.0.0-2. el6willbeupdated
  59. ---> Packagenss-util.x86_640: 3.21.0-0.3.el6 _ 7 willbeanupdate
  60. --> Runningtransactioncheck
  61. ---> Packagenss-softokn-freebl.x86_640: 3.12.9-11. el6willbeupdated
  62. ---> Packagenss-softokn-freebl.x86_640: 3.14.3-23. el6_7willbeanupdate
  63. --> FinishedDependencyResolution
  65. DependenciesResolved
  67. ========================================================== ========================================================== ========================================================== ========================================================== ====================================
  68. PackageArchVersionRepositorySize
  69. ========================================================== ========================================================== ========================================================== ========================================================== ====================================
  70. Updating:
  71. Ca-certificatesnoarch2015.2.6-65.0.1.el6_7updates1.2M
  72. Nssx86_643.21.0-0.3.el6_7updates858k
  73. Installingfordependencies:
  74. Libtasn1x86_642.3-6.el6_5base238k
  75. P11-kitx86_640.18.5-2.el6_5.2base94k
  76. P11-kit-trustx86_640.18.5-2.el6_5.2base71k
  77. Updatingfordependencies:
  78. Nsprx86_644.11.0-0.1.el6_7updates114k
  79. Nss-softoknx86_643.14.3-23.el6_7updates262k
  80. Nss-softokn-freeblx86_643.14.3-23.el6_7updates167k
  81. Nss-sysinitx86_643.21.0-0.3.el6_7updates46k
  82. Nss-toolsx86_643.21.0-0.3.el6_7updates435k
  83. Nss-utilx86_643.21.0-0.3.el6_7updates67k
  85. TransactionSummary
  86. ========================================================== ========================================================== ========================================================== ========================================================== ====================================
  87. Install3Package (s)
  88. Upgrade8Package (s)
  90. Totaldownloadsize: 3.5 M
  91. Isthisok [y/N]: y
  92. DownloadingPackages:
  93. (1/11): ca-certificates-2015.2.6-65.0.1.el6_7.noarch.rpm | 1.2MB00: 01
  94. (2/11): libtasn1-2.3-6.el6_5.x86_64.rpm | 238kB00: 00
  95. (3/11): nspr-4.11.0-0.1.el6_7.x86_64.rpm | 114kB00: 00
  96. (4/11): nss-3.21.0-0.3.el6_7.x86_64.rpm | 858kB00: 00
  97. (5/11): nss-softokn-3.14.3-23.el6_7.x86_64.rpm | 262kB00: 00
  98. (6/11): nss-softokn-freebl-3.14.3-23.el6_7.x86_64.rpm | 167kB00: 00
  99. (7/11): nss-sysinit-3.21.0-0.3.el6_7.x86_64.rpm | 46kB00: 00
  100. (8/11): nss-tools-3.21.0-0.3.el6_7.x86_64.rpm | 435kB00: 00
  101. (9/11): nss-util-3.21.0-0.3.el6_7.x86_64.rpm | 67kB00: 00
  102. (10/11): p11-kit-0.18.5-2.el6_5.2.x86_64.rpm | 94kB00: 00
  103. (11/11): p11-kit-trust-0.18.5-2.el6_5.2.x86_64.rpm | 71kB00: 00
  104. Certificate ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  105. Total601kB/s | 3.5MB00: 06
  106. Runningrpm_check_debug
  107. RunningTransactionTest
  108. TransactionTestSucceeded
  109. RunningTransaction
  110. Updating: nspr-4.11.0-0.1.el6_7.x86_641/19
  111. Updating: nss-util-3.21.0-0.3.el6_7.x86_642/19
  112. Updating: nss-softokn-freebl-3.14.3-23.el6_7.x86_643/19
  113. Updating: nss-softokn-3.14.3-23.el6_7.x86_644/19
  114. Updating: nss-sysinit-3.21.0-0.3.el6_7.x86_645/19
  115. Updating: nss-3.21.0-0.3.el6_7.x86_646/19
  116. Installing: libtasn1-2.3-6.el6_5.x86_647/19
  117. Installing: p11-kit-0.18.5-2.el6_5.2.x86_648/19
  118. Installing: p11-kit-trust-0.18.5-2.el6_5.2.x86_649/19
  119. Updating: ca-certificates-2015.2.6-65.0.1.el6_7.noarch10/19
  120. Updating: nss-tools-3.21.0-0.3.el6_7.x86_6411/19
  121. Cleanup: ca-certificates-2010.63-3.el6_1.5.noarch12/19
  122. Cleanup: nss-tools-3.14.0.0-12.el6.x86_6413/19
  123. Cleanup: nss-3.14.0.0-12.el6.x86_6414/19
  124. Cleanup: nss-sysinit-3.14.0.0-12.el6.x86_6415/19
  125. Cleanup: nss-softokn-3.12.9-11.el6.x86_6416/19
  126. Cleanup: nss-util-3.14.0.0-2.el6.x86_6417/19
  127. Cleanup: nspr-4.9.2-1.el6.x86_6418/19
  128. Cleanup: nss-softokn-freebl-3.12.9-11.el6.x86_6419/19
  129. Verifying: p11-kit-0.18.5-2.el6_5.2.x86_641/19
  130. Verifying: nss-util-3.21.0-0.3.el6_7.x86_642/19
  131. Verifying: nss-softokn-3.14.3-23.el6_7.x86_643/19
  132. Verifying: nss-softokn-freebl-3.14.3-23.el6_7.x86_644/19
  133. Verifying: nss-sysinit-3.21.0-0.3.el6_7.x86_645/19
  134. Verifying: libtasn1-2.3-6.el6_5.x86_646/19
  135. Verifying: nss-3.21.0-0.3.el6_7.x86_647/19
  136. Verifying: ca-certificates-2015.2.6-65.0.1.el6_7.noarch8/19
  137. Verifying: nspr-4.11.0-0.1.el6_7.x86_649/19
  138. Verifying: nss-tools-3.21.0-0.3.el6_7.x86_6410/19
  139. Verifying: p11-kit-trust-0.18.5-2.el6_5.2.x86_6411/19
  140. Verifying: nss-tools-3.14.0.0-12.el6.x86_6412/19
  141. Verifying: nss-3.14.0.0-12.el6.x86_6413/19
  142. Verifying: ca-certificates-2010.63-3.el6_1.5.noarch14/19
  143. Verifying: nss-softokn-freebl-3.12.9-11.el6.x86_6415/19
  144. Verifying: nss-util-3.14.0.0-2.el6.x86_6416/19
  145. Verifying: nss-sysinit-3.14.0.0-12.el6.x86_6417/19
  146. Verifying: nspr-4.9.2-1.el6.x86_6418/19
  147. Verifying: nss-softokn-3.12.9-11.el6.x86_6419/19
  149. DependencyInstalled:
  150. Libtasn1.x86 _ 640: 2.3-6. el6_5p11-kit.x86_640: 0.18.5-2. el6_5.2p11-kit-trust.x86_640: 0.18.5-2. el6_5.2
  152. Updated:
  153. Ca-certificates.noarch0: 2015.2.6-65.0.1.el6 _ 7nss. x86_640: 3.21.0-0.3.el6 _ 7
  155. DependencyUpdated:
  156. Nspr. x86_640: 4.11.0-0.1.el6 _ 7nss-softokn.x86_640: 3.14.3-23. el6_7nss-softokn-freebl.x86_640: 3.14.3-23. el6_7nss-sysinit.x86_640: 3.21.0-0.3.el6 _ 7
  157. Nss-tools.x86_640: 3.21.0-0.3.el6 _ 7nss-util.x86_640: 3.21.0-0.3.el6 _ 7
  159. Complete!

Now.

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