第一部分 Zeroc 官方文件

在ubuntu上安裝ICE的官方文件：

1. 安裝 Zeroc key

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 5E6DA83306132997

2. 新增 repository

sudo apt-add-repository "deb http://zeroc.com/download/apt/ubuntu`lsb_release -rs` stable main"

3. 更新 package 列表，然後 安裝

sudo apt-get update
sudo apt-get install zeroc-ice
 
-all-runtime zeroc-ice-all-dev

另外， 由於 ICE 執行熱備份之類的管理任務需要用到 Berkeley DB ，故還需要安裝 db5.3-util

sudo apt-get install db5.3-util

第二部分 為什麼我就是安裝不了ICE

這部分說一下我在安裝時遇到的問題。

[email protected]:~$ sudo apt-get install zeroc-ice-all-runtime
zeroc-ice-all-dev [sudo] password for icebergwu: Reading package
lists… Done Building dependency tree Reading state
information… Done Some packages could not be installed. This may
mean that you have requested an impossible situation or if you are
using the unstable distribution that some required packages have not
yet been created or been moved out of Incoming. The following
information may help to resolve the situation:

The following packages have unmet dependencies: zeroc-ice-all-dev :
Depends: libzeroc-ice-dev (= 3.6.3-1000)
Depends: libzeroc-ice-java (= 3.6.3-1000) but it is not installable zeroc-ice-all-runtime : Depends: libzeroc-ice3.6
(= 3.6.3-1000) but it is not installable
Depends: libzeroc-freeze3.6 (= 3.6.3-1000) but it is not installable
Depends: zeroc-glacier2 (= 3.6.3-1000) but it is not installable
Depends: zeroc-icebox (= 3.6.3-1000) but it is not installable
Depends: zeroc-icegrid (= 3.6.3-1000) but it is not installable
Depends: libzeroc-icestorm3.6 (= 3.6.3-1000) but it is not installable
Depends: zeroc-icepatch2 (= 3.6.3-1000) but it is not installable
Depends: zeroc-ice-utils (= 3.6.3-1000) but it is not installable
Depends: zeroc-ice-utils-java (= 3.6.3-1000) but it is not going to be installed E: Unable to correct problems, you
have held broken packages.

[email protected]:~$

百度了很長時間也沒找到原因，後來從下往上依次執行 sudo apt-get install xxx.後來才懷疑是找不到包。

[email protected]:~$ sudo apt-get install zeroc-ice-utils Reading
package lists… Done Building dependency tree Reading state
information… Done Package zeroc-ice-utils is not available, but is
referred to by another package. This may mean that the package is
missing, has been obsoleted, or is only available from another source

E: Package ‘zeroc-ice-utils’ has no installation candidate
[email protected]:~$

最後想到要驗證 repository 是不是弄錯了。於是開啟下面的連結，發現無論是在虛擬機器ubuntu，還是在宿主windows上，總是報 NoSuchKey。

然後在公司的linux server上再連這個網址，它居然就可以開啟。我覺得應該是公司的防火牆對windows主機做了一些過濾導致不能正常列出Zeroc的檔案。

後來在家裡試了試，也是報 NoSuchKey。
安裝不了怎麼辦？最後只能研究如何用原始碼安裝ICE。

具體的會在下一篇文章裡介紹。