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Top Forums UNIX for Dummies Questions & Answers Not able to log into single user mode. Post 302501195 by pinga123 on Thursday 3rd of March 2011 12:34:59 AM
Old 03-03-2011
Not able to log into single user mode.

Hi as per the article given.
Boot Linux Grub Into Single User Mode

I m modifying the boot entry

Code:
grub edit> kernel /vmlinuz-2.6.18-92.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet Single

and then booting from it by pressing b.
However the machine is getting booted into runlevel 5.

if the above entry is modified as
Code:
grub edit> kernel /vmlinuz-2.6.18-92.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet 1

then it goes into runlevel 1.

I just want to know why Single word is not working? and
Is booting the system into runlevel 1 is same as single user mode?



when i try with following parameter (note : s is small letter)
Code:
grub edit> kernel /vmlinuz-2.6.18-92.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet single

the machine get booted to an environment which looks similar to single user mode but when i type runlevel is says unknown.
Code:
#runlevel
unknown


Last edited by pinga123; 03-03-2011 at 01:48 AM..
 

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GRUB-REBOOT(8)						  System Administration Utilities					    GRUB-REBOOT(8)

NAME
grub-reboot - set the default boot entry for GRUB, for the next boot only SYNOPSIS
grub-reboot [OPTION] MENU_ENTRY DESCRIPTION
Set the default boot menu entry for GRUB, for the next boot only. -h, --help print this message and exit -V, --version print the version information and exit --boot-directory=DIR expect GRUB images under the directory DIR/grub instead of the /boot/grub directory MENU_ENTRY is a number, a menu item title or a menu item identifier. Please note that menu items in submenus or sub-submenus require speci- fying the submenu components and then the menu item component. The titles should be separated using the greater-than character (>) with no extra spaces. Depending on your shell some characters including > may need escaping. More information about this is available in the GRUB Manual in the section about the 'default' command. REPORTING BUGS
Report bugs to <bug-grub@gnu.org>. SEE ALSO
grub-set-default(8), grub-editenv(1) The full documentation for grub-reboot is maintained as a Texinfo manual. If the info and grub-reboot programs are properly installed at your site, the command info grub-reboot should give you access to the complete manual. grub-reboot (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-REBOOT(8)
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