I run Ubuntu in a virtual machine and I've managed to reset my password in recovery mode, by editing the parameters according to these instructions on Superuser.com. Summarizing my steps:

I changed ro single at the end of the line beginning with Linux to rw init=/bin/bash, while booting, then using the command passwd <username>, entered the new password twice. The password is reported to be updated successfully.

However, when I try to reboot the system nothing happens. I tried the command reboot, but it does not work. If I type exit I get kernel panic.

Any tips on how to proceed?

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1 Answer

Try telinit 6 you don't need sudo since your in single user mode.

EDIT:

If it wont reboot using the standard tools there is a way to do it straight through to the kernel, however this does not close file systems nicely.

Found this here

you must activate the magic SysRq option:

echo 1 > /proc/sys/kernel/sysrq

When you are ready to reboot the machine simply run the following:

echo b > /proc/sysrq-trigger

This does not attempt to unmount or sync filesystems, so it should only be used when absolutely necessary..

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