Re: Linux not adhering to BIOS Drive boot order?

David Balazic (david.balazic@uni-mb.si)
Thu, 18 Jan 2001 17:55:49 +0100


Matti Aarnio (matti.aarnio@zmailer.org) wrote :

> On Wed, Jan 17, 2001 at 08:22:22PM +0100, Werner Almesberger wrote:
> > The only cases when you really need to know the name of a disk is when
> > - doing disk-level management, e.g. partitioning or creating file
> > systems (*)
> > - adding a swap partition (sigh)
> > - telling your boot loader where to put its boot sector
>
> 2.4.0 with devfs mounted at boot time into /dev/
>
> Only thing missing is that here /dev/scsi/host0/ propably should be
> a symlink to something like /dev/bus/pci/BB/II.F ...
> Or perhaps /dev/scsi/BUS/BB/II.F/busN/targetT/lunL/partP
> but mixing in ISA-bus controllers is somewhat tough..
>
> $ mount
> /dev/scsi/host0/bus0/target0/lun0/part3 on / type ext2 (rw)
> /dev/scsi/host0/bus0/target2/lun0/part2 on /home type ext2 (rw)
> /dev/scsi/host0/bus0/target0/lun0/part4 on /usr type ext2 (rw)
> /dev/scsi/host0/bus0/target2/lun0/part1 on /usr/src type ext2 (rw)
> /dev/scsi/host0/bus0/target0/lun0/part1 on /boot type ext2 (rw)
> I do, of course, use mounting with LABEL=
>
> This new style (which contains, hopefully, physical PCI location)
> mount device paths will failry easily handle question about which
> is where... And the partitions are PHYSICAL partition numbers,
> not some logical ones. That is true with /dev/sdXP case as well
> as with /dev/hdXP case.

What is the difference between physical and logical partitions ?
How does this solve the "I deleted hda5 and now the old hda6 became
hda5"
problem ?

-- 
David Balazic
--------------
"Be excellent to each other." - Bill & Ted
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