This is my syslinux.cfg
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default vesamenu.c32
timeout 100
menu background splash.jpg
menu title Welcome to CentOS-6.5-x86_64-LiveCD!
menu color border 0 #ffffffff #00000000
menu color sel 7 #ffffffff #ff000000
menu color title 0 #ffffffff #00000000
menu color tabmsg 0 #ffffffff #00000000
menu color unsel 0 #ffffffff #00000000
menu color hotsel 0 #ff000000 #ffffffff
menu color hotkey 7 #ffffffff #ff000000
menu color timeout_msg 0 #ffffffff #00000000
menu color timeout 0 #ffffffff #00000000
menu color cmdline 0 #ffffffff #00000000
menu hidden
menu hiddenrow 5
label rd.live.check0
menu label Verify and Boot
kernel vmlinuz0
append initrd=initrd0.img root=live:CDLABEL=LIVE rootfstype=vfat rw liveimg overlay=LABEL=LIVE quiet nodiskmount nolvmmount rhgb vga=791 rd.luks=0 rd.md=0 rd.dm=0 rd.live.check
label linux0
menu label Boot
kernel vmlinuz0
append initrd=initrd0.img root=live:CDLABEL=LIVE rootfstype=vfat rw liveimg overlay=LABEL=LIVE quiet nodiskmount nolvmmount rhgb vga=791 rd.luks=0 rd.md=0 rd.dm=0
menu default
label linuxtext0
menu label Boot (Text Mode)
kernel vmlinuz0
append initrd=initrd0.img root=live:CDLABEL=LIVE rootfstype=vfat rw liveimg overlay=LABEL=LIVE 3 quiet nodiskmount nolvmmount rhgb vga=791 rd.luks=0 rd.md=0 rd.dm=0
label linux0
menu label Boot (Basic Video)
kernel vmlinuz0
append initrd=initrd0.img root=live:CDLABEL=LIVE rootfstype=vfat rw liveimg overlay=LABEL=LIVE quiet nodiskmount nolvmmount rhgb vga=791 rd.luks=0 rd.md=0 rd.dm=0 xdriver=vesa nomodeset
label install0
menu label Install
kernel vmlinuz0
append initrd=initrd0.img root=live:CDLABEL=LIVE rootfstype=vfat rw liveimg overlay=LABEL=LIVE liveinst noswap nolvmmount rd.luks=0 rd.md=0 rd.dm=0
label textinstall0
menu label Install (Text Mode)
kernel vmlinuz0
append initrd=initrd0.img root=live:CDLABEL=LIVE rootfstype=vfat rw liveimg overlay=LABEL=LIVE textinst noswap nolvmmount rd.luks=0 rd.md=0 rd.dm=0
label memtest
menu label Memory Test
kernel memtest
label local
menu label Boot from local drive
localboot 0xffff
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