is there difference between VTY and vty in sysinstall?

[aa]

hi

i'm unclear that the sysintall show "Go to VTY4 now by typing ALT-F4" when I press "2 CDROM/DVD Use the live filesystem CDROM/DVD" under Fixit menu. however, i scroll the screen up to see booting message, it shows: /stand/sysinstall running as init on vty0. as such, if  vty0 is coresponding to keystroke 'ALT-F1' then , is it that vty4 coresponding to 'ALT-F5'? or is there defference between VTY(uppercase) and vty(lowercase)?

---- dmesg snippet ----
...
Trying to mount root from ufs:/dev/md0
/stand/sysinstall running as init on vty0
...

---- press ALT-F4 or sysinstall call it 'VTY4' ----
...
Good Luck!

Fixit# tcsh
# echo $tty
ttyv3
#

 		 	   		  
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