How do I boot Backbox to the grub menu? I've tried spamming escape and shift during bootup but I always wind up at the splash screen.

I'm asking because my boot currently has some sort of issue where it's crashing at the splash screen so I want to start it up in single user mode.

I have some data on my Backbox VM that I spent the weekend processing, when I got in this morning the VM was crashed and I can't successfully boot completely. Please help me get into single-user mode so I can start debugging.

Backbox 4.5 as a guest inside VMWare Fusion on OS X. Latest versions of everything. Like I said, it was working last Friday, then I left the office with some stuff processing and when I came back the VM was hung and now it won't boot up again.

Thanks!

Or ...

sudo nano /etc/default/grub

And replace:

GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true

with

#GRUB_HIDDEN_TIMEOUT=0
#GRUB_HIDDEN_TIMEOUT_QUIET=true

Find:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

And replace with:

GRUB_CMDLINE_LINUX_DEFAULT="splash"

Commit changes:

update-grub

Make backup of your grub file as well.