info: boot from network with 1024x768 screen and RAM >=128MB
    to customize this menu edit menumain and menusub and run update_bootmenu
    (the line "menu default" after "menu label.." determines the default entry)

(RAM: >=128 MB graphical mode (more with user addons), >=48 MB text mode) 

booting from network requires a ramdisk with network modules (F4: netboot.txt)
(use command changeramdisk inside SPBLinux to add modules to file ramdisk)

There are 2 ramdisks which have a fixed size: one for / and another for /usr
(spbrootsize=.. and spbaddonsize=.. ;=3,4,8,16,32,64 MB) and 2 ramdisks with
variable size mounted at /tmp and at /home (reduce / and /usr to save RAM)
Default ramdisk size is 4 MB for / and 32 MB for /usr.

the screen resolution is defined by: x:x=,x:y=,x:res= x:freq=)
(the command vbetest displays available vesa resolutions)

the network config 1,2,d (d=dhcp) is defined by net:config=1,..

addons are loaded from subdirectories (in /spblinux) defined by
 addons:subdir=basics:x:x2 as described in bootinfo.txt (displayed with F3).

the network from which spblinux is loaded is set by
 root=http://yourserver.net[:88]/dir/subdir (or ftp:// or tftp://)

(any key to continue; back in the menu press key tab to edit entries)