Solaris的Patch策略,简单而言，可以概括为以下几点
1）Bugfix打Patch
2）功能强化发布Release更新
Release更新的名称如下：
...
Solaris 10 9/10 (Update 9)
Solaris 10 8/11 (Update 10)
Solaris 10 1/13 (Update 11)
其中的1/13指13年1月。
3）Release更新也会收集很多Bugfix的Patch
相当于IE的累计更新，被Release更新收集的Patch就被"obsoleted"了。
4）Release更新也是Patch的形式，所以可以把Release认为是一个特殊的Patch
5）每个Patch(包括Release)有个PatchID，
比如：120061-02，其中02代表是这个Patch的第2次修正版
6）Patch之间有依赖关系，子Patch依赖于父Patch
由于这个依赖关系，就需要按顺序打Patch，但因为Release更新会收集一堆Patch又一定程度上简化了升级的过程。
升级过程变成了：
-
打当前Release更新的Bugfix Patch
-
下一个版本的Release更新Patch
-
下一个版本Release更新的Bugfix Patch
-
下下一个版本的Release更新Patch
-
...
详细参考:
https://blogs.oracle.com/patch/entry/solaris_10_kernel_patchid_progression
每个Patch的详细参考
比如：
几个相关的命令
1. 查看Solaris版本
bash-3.2$ cat /etc/release
Oracle Solaris 10 8/11 s10s_u10wos_17b SPARC
Copyright (c) 1983, 2011, Oracle and/or its affiliates. All rights reserved.
Assembled 23 August 2011
bash-3.2$ showrev
Hostname: NODE1
Hostid: 84f9f16d
Release: 5.10
Kernel architecture: sun4v
Application architecture: sparc
Hardware provider: Oracle Corporation
Domain:
Kernel version: SunOS 5.10 Generic_147440-01
2. 查看详细的Patch一览
bash-3.2$ showrev -a
...
3. 查看某个文件来自哪个包
bash-3.2$ pkgchk -lp /lib/sparcv9/libc.so.1
NOTE: Couldn't lock the package database.
Pathname: /lib/sparcv9/libc.so.1
Type: regular file
Expected mode: 0755
Expected owner: root
Expected group: bin
Expected file size (bytes): 1792616
Expected sum(1) of contents: 24625
Expected last modification: Jul 07 00:00:41 2011 Referenced by the following packages:
SUNWcslr
Current status: installed
4. 查看包的版本（没查到Patch号，但有Patch的时间戳）
bash-3.2$ pkginfo -l SUNWcslr
PKGINST: SUNWcslr
NAME: Core Solaris Libraries (Root)
CATEGORY: system
ARCH: sparc
VERSION: 11.10.0,REV=2005.01.21.15.53
BASEDIR: /
VENDOR: Oracle Corporation
DESC: core software for a specific instruction-set architecture
PSTAMP: on10ptchfeat20110620074843
INSTDATE: Aug 29 2013 19:39
HOTLINE: Please contact your local service provider
STATUS: completely installed
FILES: 245 installed pathnames
2 shared pathnames
5 directories
133 executables
36290 blocks used (approx)
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