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Top Forums UNIX for Dummies Questions & Answers Can't login as SU anymore - SU: NO SHELL Post 302071728 by blowtorch on Monday 24th of April 2006 06:15:56 AM
Old 04-24-2006
Have run into this before. The only thing that we could do was reboot.
1. reboot from cdrom
2. mount the '/' filesystem as /a
3. vi /a/etc/passwd and change the shell to the required value
4. save and exit
5. reboot from disk
 

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HALT(8) 							       halt								   HALT(8)

NAME
halt, poweroff, reboot - Halt, power-off or reboot the machine SYNOPSIS
halt [OPTIONS...] poweroff [OPTIONS...] reboot [OPTIONS...] DESCRIPTION
halt, poweroff, reboot may be used to halt, power-off or reboot the machine. OPTIONS
The following options are understood: --help Prints a short help text and exits. --halt Halt the machine, regardless of which one of the three commands is invoked. -p, --poweroff Power-off the machine, regardless of which one of the three commands is invoked. --reboot Reboot the machine, regardless of which one of the three commands is invoked. -f, --force Force immediate halt, power-off, reboot. Do not contact the init system. -w, --wtmp-only Only write wtmp shutdown entry, do not actually halt, power-off, reboot. -d, --no-wtmp Do not write wtmp shutdown entry. --no-wall Do not send wall message before halt, power-off, reboot. EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise. NOTES
These are legacy commands available for compatibility only. SEE ALSO
systemd(1), systemctl(1), shutdown(8), wall(1) systemd 208 HALT(8)
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