Boot into single user mode on various unixes

January 24, 2013 at 07:40 AM | categories: Sysadmin, Tips, Unix, Linux | View Comments

Linux/Grub

Press a to append to the boot options then add single

grub append> ro root=LABEL=/ single

Solaris/OpenBoot PROM

Press L1+a or STOP+a to enter OpenBoot PROM then type

boot -s

AIX

Select maintanance mode from the boot menu or type telinit S on a running machine

HP-UX

Interrupt the boot process when prompted and at the prompt type boot pri isl to get the ISL prompt that allows you to boot into single user mode. At the ISL prompt type

ISL> prompt: hpux -iS /stand/vmunix
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