[英]Unable to upgrade r-base-core package to backports in Debian
I am trying to upgrade r-base-core
from version 3.1.1-1 in Debian Jessie to version 3.3.2-1 in jessie-backports. 我正在尝试将Debian Jessie中的3.1.1-1版本的
r-base-core
升级到jessie-backports中的3.3.2-1版本。 My setup: 我的设置:
$ apt-cache policy r-base-core
r-base-core:
Installed: 3.1.1-1+deb8u1
Candidate: 3.1.1-1+deb8u1
Version table:
3.3.3-1~jessiecran.0 0
500 http://cran.cnr.berkeley.edu/bin/linux/debian/ jessie-cran3/ Packages
3.3.2-1~bpo8+1 0
100 http://ftp.debian.org/debian/ jessie-backports/main amd64 Packages
*** 3.1.1-1+deb8u1 0
1000 http://security.debian.org/ jessie/updates/main amd64 Packages
1000 http://security.debian.org/ stable/updates/main amd64 Packages
100 /var/lib/dpkg/status
3.1.1-1+b2 0
900 http://ftp.us.debian.org/debian/ jessie/main amd64 Packages
900 http://mirrors.kernel.org/debian/ stable/main amd64 Packages
900 http://ftp.us.debian.org/debian/ stable/main amd64 Packages
When I execute sudo apt-get -t jessie-backports install r-base-core
, I get: 当我执行
sudo apt-get -t jessie-backports install r-base-core
,我得到:
Reading package lists... Done
Building dependency tree
Reading state information... Done
r-base-core is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 205 not upgraded.
Why doesn't it see the jessie-backports
version as being newer? 为什么为什么看不到
jessie-backports
版本较新? How do I debug this? 我该如何调试? Thanks for any help.
谢谢你的帮助。
The display shows the ***
for the selected variant. 显示屏显示所选变量的
***
。 Below is the all-important score of a 1000 which is higher than the alternatives of 100 and 500, respectively, for the higher versions. 以下是1000的最重要的分数 ,分别高于较高版本的100和500的替代分数 。
This is a feature called apt-pinning. 这是一个称为apt-pinning的功能。 You need to adjust the ranking you give the different repos.
您需要调整给出不同存储库的排名。 At equal or lower score , the upgrade to a higher version happens as you would expect.
分数相等或较低时 ,将按照您的期望升级到较高版本。
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