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I think we should not be discussing MBRs for so long on the BL3 list.
My email address can be found (by people, not bots) at my website address 
(which I posted for downloading a kernel and a program recently).  Please 
write me directly.

> I use EXT3 on Kurumin, a Debian-based distro (in Portuguese).
> I have no way to compare those FSs, since BL3 and Kurumin are very different
> each other.

You can copy Kurumin to a partition that was formatted ext2 and compare 
sizes.

> 2kb is big enough for making a lot of things in Assembly or machine
> language.
> In the past I've programmed Burroughs  mini-computers and all I had were 512
> "memory words", what means 512 bytes.

I programmed a very small computer that took one card.  My partner made a 
4K DOS text editor in assembler language that works under dosemu.


> > So why won't LILO boot floppy work either?  Does the floppy disk version
> > look at the MBR or other parts of track 0?
>
> I hope not.
> But it certainly looks for the bootable partition, which is determined by
> the user.

I will try LILO again from floppy boot disk and maybe from MBR.

> I believe it just looks for a bootable partition, since it can be hda1,
> hda2, etc.
> since Linux users are not obliged to install the system oon MBR.

Is this the linux partition, or the partition where I put the kernel and 
boot.b?   I could put them in hda2 instead of hda1.

> > Are they entirely in track 0?
>
> Well, 1kb is big enough to handle a lot of information.
> These viruses alter the MBR table and point to other locations on HD where
> the malware really is.
> This is to say that malware codes can be placed out of track 0, but since
> the pointers are zeroed these files can't be executed anymore.

The rest of the drive is also zeroed.
> Teixeira

Sindi

keesan AT sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org