Twin directories of biosboot:

[DIR]  ftp://ftp.ticklers.org/pub/NetBSD/NetBSD-current/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.ticklers.org/pub/NetBSD/NetBSD-release-3-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.ticklers.org/pub/NetBSD/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.ticklers.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.freebsd.org/pub/FreeBSD/development/NetBSD-CVS/src/sys/arch/i386/stand/biosboot/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.freebsd.org/pub/FreeBSD/development/NetBSD-CVS/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.esat.net/mirrors/.3/ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://128.118.2.96/pub/.mirrors/1/ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.lug.udel.edu/pub/netbsd/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.nrc.ca/pub/systems/bsd/netbsd/NetBSD-current/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.jp.netbsd.org/pub/NetBSD-cvs/main/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.in2p3.fr/pub/FreeBSD/branches/4.0-stable/src/sys/pc98/boot/biosboot/
[DIR]  ftp://ftp.in2p3.fr/pub/FreeBSD/branches/4.0-stable/src/sys/i386/boot/biosboot/
[DIR]  ftp://ftp.in2p3.fr/pub/FreeBSD/branches/3.0-stable/src/sys/i386/boot/biosboot/
[DIR]  ftp://ftp.in2p3.fr/pub/FreeBSD/branches/3.0-stable/src/sys/pc98/boot/biosboot/
[DIR]  ftp://ftp.in2p3.fr/pub/FreeBSD/branches/2.2-stable/src/sys/pc98/boot/biosboot/
[DIR]  ftp://ftp.in2p3.fr/pub/FreeBSD/branches/2.2-stable/src/sys/i386/boot/biosboot/
[DIR]  ftp://ftp.nrc.ca/pub/systems/bsd/netbsd/NetBSD-release-3-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.krokus.ru/pub/OpenBSD/src/sys/arch/i386/stand/biosboot/
[DIR]  ftp://ftp.krokus.ru/pub/OpenBSD/src/sys/arch/amd64/stand/biosboot/
[DIR]  ftp://ftp.filearena.net/mnt1/freebsd-cvs/src/sys/pc98/boot/biosboot/
[DIR]  ftp://ftp.filearena.net/mnt1/freebsd-cvs/src/sys/i386/boot/biosboot/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.freebsd.org/pub/FreeBSD/development/OpenBSD-CVS/src/sys/arch/i386/stand/biosboot/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.freebsd.org/pub/FreeBSD/development/OpenBSD-CVS/src/sys/arch/amd64/stand/biosboot/
[DIR]  ftp://ftp.usa.openbsd.org/pub/OpenBSD/cvs/src/sys/arch/i386/stand/biosboot/
[DIR]  ftp://ftp.usa.openbsd.org/pub/OpenBSD/cvs/src/sys/arch/amd64/stand/biosboot/
[DIR]  ftp://ftp.jpix.ad.jp/pub/FreeBSD-jp/PAO/PAO-19990405/release/backup-PAO/necmg/boot/biosboot/
[DIR]  ftp://ftp.jp.xemacs.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.jp.xemacs.org/pub/NetBSD/NetBSD-release-3-1/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.jp.xemacs.org/pub/NetBSD/NetBSD-release-3-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.radio-msu.net/.1/ftp.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/src/sys/pc98/boot/biosboot/
[DIR]  ftp://ftp.rmt.ru/.1/ftp.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/src/sys/pc98/boot/biosboot/
[DIR]  ftp://ftp.radio-msu.net/.1/ftp.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/src/sys/i386/boot/biosboot/
[DIR]  ftp://ftp.rmt.ru/.1/ftp.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/src/sys/i386/boot/biosboot/
[DIR]  ftp://ftp.gascom.ru/pub/FreeBSD/development/FreeBSD-CVS/src/sys/i386/boot/biosboot/
[DIR]  ftp://ftp.sh.cvut.cz/storage/1/netbsd/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://129.186.1.197/pub/netbsd/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.esat.net/mirrors/.3/ftp.netbsd.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://128.118.2.96/pub/.mirrors/1/ftp.netbsd.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://202.18.64.24/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.jp.netbsd.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.lug.udel.edu/pub/netbsd/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/
[DIR]  ftp://ftp.nrc.ca/pub/systems/bsd/netbsd/NetBSD-release-4-0/src/sys/arch/i386/stand/boot/biosboot/