Delta RPMs disabled because /usr/bin/applydeltarpm not installed

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在使用centos 7.5 安装软件是出现的错误提示

[root@instance-lzteipxa ~]# yum update
Loaded plugins: langpacks, versionlock
baidu-bcm                                                | 1.2 kB     00:00
base                                                     | 3.6 kB     00:00
epel                                                     | 3.2 kB     00:00
extras                                                   | 3.4 kB     00:00
nginx                                                    | 2.9 kB     00:00
rpmfusion-free-updates                                   | 3.0 kB     00:00
rpmfusion-nonfree-updates                                | 3.0 kB     00:00
updates                                                  | 3.4 kB     00:00
(1/3): epel/x86_64/updateinfo                              | 948 kB   00:00
(2/3): epel/x86_64/primary                                 | 3.6 MB   00:00
(3/3): nginx/x86_64/primary_db                             |  35 kB   00:01
epel                                                                12703/12703
Resolving Dependencies
--> Running transaction check
---> Package nginx.x86_64 1:1.12.2-2.el7 will be updated
---> Package nginx.x86_64 1:1.14.0-1.el7_4.ngx will be an update
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package       Arch           Version                       Repository     Size
================================================================================
Updating:
 nginx         x86_64         1:1.14.0-1.el7_4.ngx          nginx         750 k

Transaction Summary
================================================================================
Upgrade  1 Package

Total download size: 750 k
Is this ok [y/d/N]: y
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
nginx-1.14.0-1.el7_4.ngx.x86_64.rpm                        | 750 kB   00:02
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Updating   : 1:nginx-1.14.0-1.el7_4.ngx.x86_64                            1/2
warning: /etc/nginx/nginx.conf created as /etc/nginx/nginx.conf.rpmnew
  Cleanup    : 1:nginx-1.12.2-2.el7.x86_64                                  2/2
  Verifying  : 1:nginx-1.14.0-1.el7_4.ngx.x86_64                            1/2
  Verifying  : 1:nginx-1.12.2-2.el7.x86_64                                  2/2

Updated:
  nginx.x86_64 1:1.14.0-1.el7_4.ngx

Complete!
[root@instance-lzteipxa ~]# systemctl restart nginx

增量 RPM 包包含旧版本和新版本的 RPM 包之间的差别。在旧 RPM 上应用增量 RPM 将得到全新的 RPM。不需要旧 RPM 的副本，因为增量 RPM 可以与已安装的 RPM 一起工作。增量 RPM 包的大小甚至比增补程序 RPM 小，这有利于通过因特网传送更新包。缺点是，涉及增量 RPM 的更新操作与使用纯粹 RPM 或增补程序 RPM 进行更新的情况相比，占用的 CPU 周期要长得多。

解决方法

yum provides '*/applydeltarpm'
yum install deltarpm

 

转载于:https://my.oschina.net/webcreazy/blog/2223121