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第 27 章 POWER 系​​​​​​​统​​​​​​​的​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​

万​​​​​​​一​​​​​​​你​​​​​​​的​​​​​​​系​​​​​​​统​​​​​​​无​​​​​​​法​​​​​​​引​​​​​​​导​​​​​​​，你​​​​​​​可​​​​​​​以​​​​​​​在​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​中​​​​​​​使​​​​​​​用​​​​​​​安​​​​​​​装​​​​​​​磁​​​​​​​盘​​​​​​​。​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​使​​​​​​​你​​​​​​​能​​​​​​​够​​​​​​​进​​​​​​​入​​​​​​​系​​​​​​​统​​​​​​​上​​​​​​​的​​​​​​​磁​​​​​​​盘​​​​​​​分​​​​​​​区​​​​​​​，因​​​​​​​此​​​​​​​你​​​​​​​可​​​​​​​以​​​​​​​进​​​​​​​行​​​​​​​必​​​​​​​要​​​​​​​的​​​​​​​修​​​​​​​改​​​​​​​来​​​​​​​补​​​​​​​救​​​​​​​安​​​​​​​装​​​​​​​。​​​​​​​
To boot in rescue mode on IBM System i with power control NWSD , follow the instructions for booting the installation program, with this change: In the NWSD, set the IPL parameters field to 'rescue' (including the quotes), or to 'dd rescue' if you need to load the SCSI driver. On other systems, specify the rescue or dd rescue (without quotes) after the default kernel name at the YABOOT prompt.
After the Language Selection screen (第 12.13 节 “语​​​​​​​言​​​​​​​选​​​​​​​择​​​​​​​”), the installation program attempts to mount the disk partitions on your system. It then presents you with a shell prompt where you can make the changes you need. These changes may include storing the kernel and command line into the IPL source, as described in the Installation Complete section (第 12.26 节 “安​​​​​​​装​​​​​​​完​​​​​​​成​​​​​​​”).
当​​​​​​​完​​​​​​​成​​​​​​​了​​​​​​​所​​​​​​​做​​​​​​​改​​​​​​​变​​​​​​​后​​​​​​​，你​​​​​​​可​​​​​​​以​​​​​​​使​​​​​​​用​​​​​​​ exit 0 来​​​​​​​退​​​​​​​出​​​​​​​ shell。​​​​​​​这​​​​​​​会​​​​​​​导​​​​​​​致​​​​​​​ C 边​​​​​​​的​​​​​​​重​​​​​​​新​​​​​​​引​​​​​​​导​​​​​​​。​​​​​​​要​​​​​​​从​​​​​​​ A 或​​​​​​​ B 边​​​​​​​或​​​​​​​从​​​​​​​ *NWSSTG 重​​​​​​​新​​​​​​​引​​​​​​​导​​​​​​​，你​​​​​​​应​​​​​​​该​​​​​​​关​​​​​​​闭​​​​​​​系​​​​​​​统​​​​​​​而​​​​​​​不​​​​​​​是​​​​​​​退​​​​​​​出​​​​​​​ shell。​​​​​​​

27.1. 从​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​中​​​​​​​使​​​​​​​用​​​​​​​ SCSI 工​​​​​​​具​​​​​​​的​​​​​​​特​​​​​​​殊​​​​​​​考​​​​​​​虑​​​​​​​因​​​​​​​素​​​​​​​

如​​​​​​​果​​​​​​​你​​​​​​​的​​​​​​​系​​​​​​​统​​​​​​​使​​​​​​​用​​​​​​​原​​​​​​​始​​​​​​​ DASD 磁​​​​​​​盘​​​​​​​，你​​​​​​​可​​​​​​​能​​​​​​​需​​​​​​​要​​​​​​​从​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​使​​​​​​​用​​​​​​​ SCSI 工​​​​​​​具​​​​​​​。​​​​​​​这​​​​​​​些​​​​​​​工​​​​​​​具​​​​​​​位​​​​​​​于​​​​​​​驱​​​​​​​动​​​​​​​程​​​​​​​序​​​​​​​光​​​​​​​盘​​​​​​​上​​​​​​​。​​​​​​​驱​​​​​​​动​​​​​​​程​​​​​​​序​​​​​​​光​​​​​​​盘​​​​​​​不​​​​​​​能​​​​​​​从​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​被​​​​​​​挂​​​​​​​载​​​​​​​，除​​​​​​​非​​​​​​​你​​​​​​​采​​​​​​​取​​​​​​​了​​​​​​​特​​​​​​​殊​​​​​​​的​​​​​​​步​​​​​​​骤​​​​​​​。​​​​​​​这​​​​​​​些​​​​​​​步​​​​​​​骤​​​​​​​如​​​​​​​下​​​​​​​所​​​​​​​描​​​​​​​述​​​​​​​。​​​​​​​
如​​​​​​​果​​​​​​​你​​​​​​​有​​​​​​​一​​​​​​​个​​​​​​​分​​​​​​​派​​​​​​​给​​​​​​​ Linux 系​​​​​​​统​​​​​​​的​​​​​​​第​​​​​​​二​​​​​​​个​​​​​​​光​​​​​​​盘​​​​​​​驱​​​​​​​动​​​​​​​器​​​​​​​，你​​​​​​​可​​​​​​​以​​​​​​​在​​​​​​​第​​​​​​​二​​​​​​​个​​​​​​​驱​​​​​​​动​​​​​​​器​​​​​​​中​​​​​​​挂​​​​​​​载​​​​​​​驱​​​​​​​动​​​​​​​程​​​​​​​序​​​​​​​光​​​​​​​盘​​​​​​​。​​​​​​​
如​​​​​​​果​​​​​​​你​​​​​​​只​​​​​​​有​​​​​​​一​​​​​​​个​​​​​​​光​​​​​​​盘​​​​​​​驱​​​​​​​动​​​​​​​器​​​​​​​，你​​​​​​​必​​​​​​​须​​​​​​​设​​​​​​​置​​​​​​​ NFS 引​​​​​​​导​​​​​​​，使​​​​​​​用​​​​​​​以​​​​​​​下​​​​​​​步​​​​​​​骤​​​​​​​：
  1. 使​​​​​​​用​​​​​​​ linux rescue askmethod 命​​​​​​​令​​​​​​​来​​​​​​​从​​​​​​​光​​​​​​​盘​​​​​​​引​​​​​​​导​​​​​​​。​​​​​​​这​​​​​​​会​​​​​​​允​​​​​​​许​​​​​​​你​​​​​​​手​​​​​​​工​​​​​​​地​​​​​​​选​​​​​​​择​​​​​​​ NFS 作​​​​​​​为​​​​​​​你​​​​​​​的​​​​​​​救​​​​​​​援​​​​​​​介​​​​​​​质​​​​​​​源​​​​​​​，而​​​​​​​不​​​​​​​是​​​​​​​默​​​​​​​认​​​​​​​的​​​​​​​光​​​​​​​盘​​​​​​​驱​​​​​​​动​​​​​​​器​​​​​​​。​​​​​​​
  2. 把​​​​​​​第​​​​​​​一​​​​​​​个​​​​​​​安​​​​​​​装​​​​​​​光​​​​​​​盘​​​​​​​复​​​​​​​制​​​​​​​到​​​​​​​另​​​​​​​一​​​​​​​个​​​​​​​ Linux 系​​​​​​​统​​​​​​​的​​​​​​​文​​​​​​​件​​​​​​​系​​​​​​​统​​​​​​​上​​​​​​​。​​​​​​​
  3. 通​​​​​​​过​​​​​​​ NFS 或​​​​​​​ FTP 来​​​​​​​使​​​​​​​这​​​​​​​个​​​​​​​安​​​​​​​装​​​​​​​光​​​​​​​盘​​​​​​​可​​​​​​​被​​​​​​​利​​​​​​​用​​​​​​​。​​​​​​​
  4. 禁​​​​​​​用​​​​​​​或​​​​​​​关​​​​​​​闭​​​​​​​你​​​​​​​需​​​​​​​要​​​​​​​救​​​​​​​援​​​​​​​的​​​​​​​系​​​​​​​统​​​​​​​。​​​​​​​按​​​​​​​照​​​​​​​在​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​中​​​​​​​引​​​​​​​导​​​​​​​安​​​​​​​装​​​​​​​光​​​​​​​盘​​​​​​​的​​​​​​​说​​​​​​​明​​​​​​​来​​​​​​​设​​​​​​​置​​​​​​​它​​​​​​​的​​​​​​​ IPL 参​​​​​​​数​​​​​​​，不​​​​​​​过​​​​​​​ IPL 源​​​​​​​应​​​​​​​该​​​​​​​指​​​​​​​向​​​​​​​你​​​​​​​的​​​​​​​ IFS 上​​​​​​​的​​​​​​​ boot.img（从​​​​​​​上​​​​​​​面​​​​​​​的​​​​​​​第​​​​​​​一​​​​​​​个​​​​​​​步​​​​​​​骤​​​​​​​）。​​​​​​​
  5. Make sure the installation disc is not in your CD-ROM drive.
  6. IPL 载​​​​​​​入​​​​​​​ Linux 系​​​​​​​统​​​​​​​。​​​​​​​
  7. Follow the prompts as decribed in 第 27 章 POWER 系​​​​​​​统​​​​​​​的​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​. An additonal prompt for the installation source appears. Select NFS or FTP (as appropriate) and complete the following network configuration screen.
  8. 当​​​​​​​ Linux 系​​​​​​​统​​​​​​​引​​​​​​​导​​​​​​​如​​​​​​​救​​​​​​​援​​​​​​​模​​​​​​​式​​​​​​​后​​​​​​​，光​​​​​​​盘​​​​​​​驱​​​​​​​动​​​​​​​器​​​​​​​就​​​​​​​可​​​​​​​被​​​​​​​使​​​​​​​用​​​​​​​，你​​​​​​​就​​​​​​​可​​​​​​​以​​​​​​​挂​​​​​​​载​​​​​​​驱​​​​​​​动​​​​​​​程​​​​​​​序​​​​​​​介​​​​​​​质​​​​​​​来​​​​​​​使​​​​​​​用​​​​​​​ SCSI 工​​​​​​​具​​​​​​​。​​​​​​​