Examine the following kernel boot command-line parameters. kernel
/vmlinuz-2.6.32-220.e16 ro root = /dev/VolGroup00/LogVol00 init = /bin/bash ether = 0, 0,
eth1 rhgb quiet. Which two statements are true?
A.
An unrecognized kernel boot command-line parameter has been used.
B.
It will not probe for any hard drive.
C.
The system will boot without password.
D.
Boot argument ether will force probing for a second ethernet card (NIC).
what i am able to find are below. These prove that D is correct but B is missing as there is no “hdb=noprobe”. So the other correct answer might be C ?
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The ‘hd=noprobe’ option
Do not probe for this drive. For example,
hdb=noprobe hdb=1166,7,17
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ether=irq,iobase,[ARG1,ARG2],name
Where,
ether: ETHERNET DEVICES
For example, following boot argument force probing for a second Ethernet card (NIC), as the default is to only probe for one (irq=0,iobase=0 means automatically detect them).
ether=0,0,eth1
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rhgb = redhat graphical boot – This is a GUI mode booting screen with most of the information hidden while the user sees a rotating activity icon spining and brief information as to what the computer is doing.
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quiet = hides the majority of boot messages before rhgb starts. These are supposed to make the common user more comfortable. They get alarmed about seeing the kernel and initializing messages, so they hide them for their comfort.
in redhat root password recover document, i found a step in the middle of process:
Press “e” key again to edit and remove:
quiet splash
and add:
init=/bin/bash
from this, i understand that the option C can be logical..