OS version: CentOS7 / Debian9

發(fā)現(xiàn)alien這個命令時很驚喜，之前在debian上安裝etcd找不到安裝包感覺很不科學，有了alien命令事情一下就變簡單了。

這里以etcd為例，將etcd從rpm包轉(zhuǎn)換成deb包，然后傳送到debian機器上安裝。(這個命令也可以把deb包轉(zhuǎn)換成rpm包)

1、找一臺centos機器，下載etd安裝包

在centos上下載rpm包需要安裝一個插件

# yum install -y yum-plugin-downloadonly

下載rpm包

# yum install etcd --downloadonly --downloaddir=/tmp/

這時，在/tmp下就能看到剛才下載的包了。

2、找一臺debian機器測試安裝

# dpkg -i etcd_3.2.9-4_amd64.deb

Selecting previously unselected package etcd.

(Reading database ... 87613 files and directories currently installed.)

Preparing to unpack etcd_3.2.9-4_amd64.deb ...

Unpacking etcd (3.2.9-4) ...

Setting up etcd (3.2.9-4) ...

/var/lib/dpkg/info/etcd.postinst: line 6: [: configure: integer expression expected

Processing triggers for man-db (2.7.6.1-2) ...

# etcd --version

etcd Version: 3.2.9

Git SHA: f1d7dd8

Go Version: go1.8.3

Go OS/Arch: linux/amd64

# dpkg -L etcd

# systemctl start etcd

# systemctl status etcd

● etcd.service - Etcd Server

Loaded: loaded (/usr/lib/systemd/system/etcd.service; enabled; vendor preset: enabled)

Active: active (running) since Fri 2018-01-05 10:51:34 CST; 7s ago

Main PID: 20249 (etcd)

CPU: 85ms

CGroup: /system.slice/etcd.service

└─20249 /usr/bin/etcd --name=default --data-dir=/var/lib/etcd/default.etcd --listen-client-urls=http://localhost:2379

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: 8e9e05c52164694d received MsgVoteResp from 8e9e05c52164694d at term 2

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: 8e9e05c52164694d became leader at term 2

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: raft.node: 8e9e05c52164694d elected leader 8e9e05c52164694d at term 2

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: setting up the initial cluster version to 3.2

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: published {Name:default ClientURLs:[http://localhost:2379]} to cluster cdf818194e3a8c32

Jan 05 10:51:34 BJ-S-22-v06 systemd[1]: Started Etcd Server.

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: ready to serve client requests

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: serving insecure client requests on 127.0.0.1:2379, this is strongly discouraged!

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: set the initial cluster version to 3.2

Jan 05 10:51:34 BJ-S-22-v06 etcd[20249]: enabled capabilities for version 3.2

總結(jié)

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