TAILIEUCHUNG - Solaris 9 System Administrator Exam phần 2

Bất kỳ tập tin được thay đổi bằng cách cài đặt bản vá này được lưu trong thư mục. Bạn có thể chỉ định một thư mục sao lưu khác nhau bằng cách sử dụng các-B đối số dòng lệnh. Các lệnh patchadd sẽ thất bại nếu có những điều sau đây xảy ra: | Installing and Maintaining Solaris 9 19 The default backup directories are located under var sadm pkg and are based on the installed package or packages being modified by the patch and the patch number. For example the SPARC patch 112875-01 modified the SUNWrcmds package. Any files changed by installing this patch are saved under the var sadm pkg SUNWrcmds 112875-01 directory. You can specify a different backup directory by using the -B command-line argument. The patchadd command will fail if any of the following occur A package being patched is not installed or is only partially installed. The patch requires another patch that is not installed. The patch is incompatible with another patch already installed. The current version or a higher version of the patch is already installed. The architecture of the patch and the system do not match. After unzipping a patch the zip file can be deleted to save space. Likewise after installing a patch the files associated with the patch in the patch spool directory can be deleted to save space. Determining Installed Patches Two commands can be used to generate a list of installed patches for a standalone system showrev -p patchadd -p These commands generate almost identical lists. The following example illustrates the use of the showrev command the output is formatted for readability showrev -p Patch 112875-01 Obsoletes Requires Incompatibles Packages SUNWrcmds When a patch is installed information regarding the patch is added to the pkginfo files of the package s that are updated by the patch. The pkginfo files are located in subdirectories under the var sadm pkg directory. The showrev and patchadd commands extract and format information from the pkginfo files. In addition to the patch number and the package s that the patch updates any related information such as other required patches or incompatible patches is listed. 20 Chapter 1 The patchadd command can be used to display a list of installed patches for other .

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