9.8. Changing Runlevels at Boot Time

在​​​​​​​Red Hat Enterprise Linux里​​​​​​​，你​​​​​​​可​​​​​​​以​​​​​​​在​​​​​​​引​​​​​​​导​​​​​​​时​​​​​​​改​​​​​​​变​​​​​​​缺​​​​​​​省​​​​​​​的​​​​​​​运​​​​​​​行​​​​​​​级​​​​​​​别​​​​​​​。​​​​​​​
要​​​​​​​在​​​​​​​引​​​​​​​导​​​​​​​会​​​​​​​话​​​​​​​里​​​​​​​改​​​​​​​变​​​​​​​运​​​​​​​行​​​​​​​级​​​​​​​别​​​​​​​，使​​​​​​​用​​​​​​​以​​​​​​​下​​​​​​​指​​​​​​​令​​​​​​​：
  • 当​​​​​​​ GRUB 菜​​​​​​​单​​​​​​​绕​​​​​​​过​​​​​​​屏​​​​​​​幕​​​​​​​（bypass screen）出​​​​​​​现​​​​​​​时​​​​​​​，按​​​​​​​任​​​​​​​何​​​​​​​键​​​​​​​来​​​​​​​进​​​​​​​入​​​​​​​ GRUB 菜​​​​​​​单​​​​​​​（在​​​​​​​ 3 秒​​​​​​​钟​​​​​​​之​​​​​​​内​​​​​​​）。​​​​​​​
  • 按​​​​​​​ a 键​​​​​​​可​​​​​​​以​​​​​​​在​​​​​​​ kernel 命​​​​​​​令​​​​​​​后​​​​​​​附​​​​​​​加​​​​​​​选​​​​​​​项​​​​​​​。​​​​​​​
  • Add <space><runlevel> at the end of the boot options line to boot to the desired runlevel. For example, the following entry would initiate a boot process into runlevel 3: 
    grub append> ro root=/dev/VolGroup00/LogVol00 rhgb quiet 3
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