Re: Partition check order in fs/partition/check.c?

jw schultz (jw@pegasys.ws)
Tue, 1 Apr 2003 12:24:46 -0800


On Tue, Apr 01, 2003 at 03:14:56PM +0200, Peter Oberparleiter wrote:
> Hm, what do you think of these additional checks:
>
> 1. Check for overlap of partitions

Be very careful here. While you better not _use_ overlapping
partitions, a partition table with overlapping partitions is
a traditional UNIX default. It is usually something like

part start length
a 0 3/8 drive
b 3/8 1/8 drive
c 0 whole drive
d 0 1/3 drive
e 1/3 1/3 drive
f 2/3 1/3 drive
g 1/3 2/3 drive
h 1/2 1/2 drive

In this way admins wouldn't repartition, just use the default
partitions in suitable combinations. This actually reduced
the likelihood of overlapping partitions because the
partitioning tools were sometimes confusing causing custom
partition to have 1 cylinder overlaps. When drives got to be
larger than 2GB these default partition sizes became
increasingly pointless.

-- 
________________________________________________________________
	J.W. Schultz            Pegasystems Technologies
	email address:		jw@pegasys.ws

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