Знаем
В слаке есть пакет, пишется на дискетку и позволяющий дальше загрузиться с других устройств (в т.ч. CD-ROM)
Описание:
btmgr: btmgr (Smart Boot Manager)
btmgr:
btmgr: Smart BootManager is a tiny, powerful and multi-language boot manager
btmgr: written in assembler. SBM supports many features in only 30K bytes
btmgr: including multi-languages and themes, a user friendly menu system,
btmgr: partition auto scan, boot schedule, password protection, and more.
btmgr: SBM is the first GPLed boot manager to embed an IDE ATAPI CD-ROM
btmgr: driver, it can boot Win95/98/2K, Linux, FreeBSD, OpenBSD, and BeOS
btmgr: from CD-ROM. Multi-bootable image CDs are supported as well.

брать тут: [link]ftp://ftp.slackware.com/pub/slackware/slackware-9.1/extra/btmgr-3.7/[/link]