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Subject[PATCH] sun disk label: fix signed int usage for sector count
Date
From
Dear listmembers,
citing Jeff Mahoney:

> I'm not sure how many people out there are using Sun disk labels with sizes > 1TB.
> It seems like a pretty rare corner case, but there's no reason any data stored in
> those partitions wouldn't be invalid, and it will suddenly cut them off. Is this a
> rare enough occurrence that we don't care?

I am one of those guys using Sun disklabels with sizes > 1TB. And I would highly appreciate if nobody out there would make my disk drive useless by simply discarding anything larger than 1 TB. This would render our department server useless, what is everything but desirable :-)

Fdisk says:

Kommando (m für Hilfe):
Disk /dev/sda (Sun disk label): 1024 heads, 63 sectors, 36187 cylinders
Units = Zylinder of 64512 * 512 bytes

Gerät Flag Start End Blocks Id System
/dev/sda1 0 1 32256 83 Linux native
/dev/sda2 u 1 64 2032128 82 Linux Swap
/dev/sda3 0 36187 -980235776 5 Whole disk
/dev/sda4 64 320 8257536 1 Boot
/dev/sda5 320 4864 146571264 83 Linux native
/dev/sda6 4864 16384 371589120 83 Linux native
/dev/sda7 16384 36187 638765568 83 Linux native

Kommando (m für Hilfe):

cat /proc/partitions says:
/home/fred> cat /proc/partitions
major minor #blocks name

8 0 1171874880 sda
8 1 32256 sda1
8 2 2032128 sda2
8 3 -980235776 sda3
8 4 8257536 sda4
8 5 146571264 sda5
8 6 371589120 sda6
8 7 638765568 sda7

but do not leave sda3 useless by changing the code. If there would be a chance to make fdisk and /proc/partitions not to display negative numbers (since, though obvious, they are nonsense) it would be preferrable.

Many thanks for your help,
take care


Dieter Jurzitza

--
________________________________________________

HARMAN BECKER AUTOMOTIVE SYSTEMS

Dr.-Ing. Dieter Jurzitza
Manager Hardware Systems
System Development

Industriegebiet Ittersbach
Becker-Göring Str. 16
D-76307 Karlsbad / Germany

Phone: +49 (0)7248 71-1577
Fax: +49 (0)7248 71-1216
eMail: DJurzitza@harmanbecker.com
Internet: http://www.becker.de



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