Re: Extended Linux partition

Marek Michalkiewicz (
Wed, 4 Oct 1995 18:36:26 +0100 (MET)

I wrote:
> > it might be a good idea to work around this problem in Linux by creating
> > a new partition type: Linux extended partitions. It would work exactly
> > the same as the normal DOS extended partitions, but a different partition
> > type byte would not confuse the DOS FDISK program.

Albert Cahalan wrote:
> Or not so trivial: use 64-bit linear sector numbers in
> a fixed table with room for 16+ partitions.

Good, although 32 bits should be enough for next 10 years or so (max disk
size: 2 terabytes). Room for more partitions would be good thing.

> This is a very good idea, /dev/vbd?, the virtual block device.
> Any contiguous group of sectors can become a block device.
> This lets an unfragmented file (say, the Windows swap file)
> become a swap _partition_ with full speed advantages or an

If it were possible to create contiguous files on the ext2 filesystem...
One Linux box here has too small swap partition (no one expected there
will be so many users when partitioning the disk in the old 0.99.14 days),
swap file works but the performance is non-optimal. Currently the only
way is to back up everything somewhere and partition the disk again.