On Tue, Dec 1, 2009 at 10:18 AM, Peter Jones <pjo...@redhat.com> wrote:
> On 12/01/2009 10:42 AM, Sir Gallantmon wrote: > > > I found another tool that claims to be able to search and boot a USB > device, > > from a floppy disk no less! The tool is called PLoP[1], and it is a > custom > > boot manager that can boot USB, CD, and hard disks. > > > > Maybe that will help some people figure out how it is done. > > > > [1]: http://www.plop.at/en/bootmanager.html > > That's pretty neat, but probably not much help to us. What this is is a > custom (proprietary, closed source, it seems) bootloader which basically > does this: > > 1) installs what amounts to a DOS TSR driver for each of: > a) IDE (of some unspecified variety) > b) [EOU]HCI > c) ATAPI and similar (i.e. SCSI MMC/SBC command sets along with > encapsulation for CDROM and USB-storage) > d) notably not any SATA/AHCI/etc > 2) acts as a chainloading boot loader for whatever bootloader is on > media that it finds. > > Which is also just a fancy way of saying it /replaces/ some of your BIOS's > int 13h routines with what are plausibly slightly smarter (but also > plausibly slightly dumber) ones. > > If somebody wants to implement an open source version of this, it could be > helpful, I guess. But it's a lot of fairly difficult work, and the only > real advantage it has over the other scheme I've discussed is that the CD > (or whatever) you're booting from doesn't have to match the OS being > booted. > > Anyway, if somebody's looking for a truly complex and isolating project to > work on, go right ahead, but I'm not going to ;) > > -- > Peter > > The Shuttle is now going five times the sound of speed. > -- Dan Rather, first landing of Columbia > > Couldn't something like that be implemented into GRUB/GRUB2? Unlike PLoP, GRUB doesn't really have a size restriction, so maybe smarter methods of detection could be implemented.
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