GRUB Installation
Transcript of GRUB Installation
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/boot/grub/grub.conf
This is configuration file for grub boot loader.
grub-install /dev/hda
To install the grub boot loader in hda device.
grubby bootloader-probe
To show the current boot loader .
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Open the grubconfigurations file.
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The options rhgb quiet willstart xserver while booting.
Remove this options to bootthrough text mode.
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GrubConfiguration
Save the file and
exit.
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Now reboot thesystem.
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Now system is booting in textmode .
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Now system is booting in textmode .
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Now system is booting in textmode .
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Now system is booting in textmode .
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Now system is booting in textmode .
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Now system is booting in textmode .
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Now system is booting in textmode .
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Open the grubconfigurations file.
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The options rhgb quiet willstart xserver while booting.
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Now reboot the
system.
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Now system is booting ingraphical mode.
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In EL-4 redhat-config-* tools
are renamed as system-config-*.
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GRUB installation Now the boot
loader is lilo.
To install grub loader use thecommandgrub-install /dev/hda .
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Open the grubconfigurationfile.
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If default is set tozero then it bootthrough first
stanza.
Label for firststanza.
Label for secondstanza.
Flash screen to bedisplayed at boot time.
This represents that the followingfiles are in 5th partition of the harddisk on hd0.
Boots the kernelimage.
It loads the initial RAMdisk.
Loads the dualOS.
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To set password to thegrub boot loader.
It gives us the encrypted format of the password. This password is supposed to be entered in the grub.conf
file. This can be done by the following method.
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Following the above command type the
password two times, this will appendthe encrypted password to the grub.conf file.
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Open the
configuration file.
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Here we can seethe appended
password.
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Just cut and copythe password
here.
Save the file andrestart the system.
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Here you can see the grubloader prompting for the OS to
boot.
Type p to enter grub password if you want togo to single user mode.
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Enter the password here.
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Change the command promptto get in to single user mode to
do that press e.
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Enter 1 to get in torun level 1.
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Press b to boot.
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