Hello, Peter! I want to thank you for your great util syslinux! It works fine for me. I discovered all web and package content, man's, but i didn't find info about what are -f and -r options are used for. When I start syslinux.exe in Windows, I get such help message: Usage: syslinux.exe [-sfmar][-d directory] <drive>: [bootsecfile] I know: -s safe, slow, stupid version of loader, for old BIOSes -m write MBR to device -a make partition boot flag active But -f and -r options are undocumented. Thank you, Ruslan from Russia.