[syslinux] syslinux, append initrd Limitations

[Daniel Rindt]

Hello Readers,

i try to load via SYSLINUX a initrd file. My syslinux.cfg on a loop
device contains the following:
=== 8< ===
default linux
prompt 1
timeout 1
display boot.msg
F1 boot.msg
F2 options.msg
F3 general.msg
F4 param.msg
F5 rescue.msg
F7 snake.msg
label linux
  kernel vmlinuz
  append initrd=initrd.img ramdisk_size=786432 ks=file:/ks.cfg \
console=tty1 console=ttyS0,57600
=== 8< ===

my initrd is 535M big, and is comopressed with grzip -9. The initrd
tried to load on startup but later after some points it stops loading
and seems to hang.
So my Question is - How big can be a initrd for syslinux?


Thanks in advance 
Daniel
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