Disc upgrade - how to reread partition table?

[Kuba Ober]

You don't have to reboot *if* none of the partitions on that partition table 
are mounted.

fdisk itself will ask the kernel to re-read the partition table if you change 
partitions, and none partitions on that drive are mounted. It has always 
worked for me. If you resize a disk with active partitions (say your root 
partition), you'll have to reboot, unfortunately.

There should be a way to get kernel more intelligent about it, but I guess 
noone cared enough to get a patch into the kernel :)

Cheers, Kuba

On Wednesday 14 November 2007, Macka Radek wrote:
> Ouups, thanks for info, that is the one thing I was worried about :-(
> Windows should do the same without reboot, grrr :-)
>
> Regards
> /Radek
>
> -----Original Message-----
> From: L.P.H. van Belle [mailto:belle at bazuin.nl]
> Sent: Wednesday, November 14, 2007 10:35 AM
> To: Macka Radek
> Subject: RE: Disc upgrade - how to reread partition table?
>
> Hi, to reread a partition table you must reboot your server.
>
> Louis
>
> >-----Oorspronkelijk bericht-----
> >Van: linux-poweredge-bounces at dell.com
> >[mailto:linux-poweredge-bounces at dell.com] Namens Macka Radek
> >Verzonden: woensdag 14 november 2007 10:14
> >Aan: linux-poweredge at lists.us.dell.com
> >Onderwerp: Disc upgrade - how to reread partition table?
> >
> >Hello guys,
> >
> >
> >
> >               Some easy question for guru`s:
> >
> > I`ve received new hdd into poweredge server, succesfully
> >enlarge the RAID virtual disc BUT I do not know whether I am
> >able (without rebooting) reread partition table under Debian
> >Etch? Is it possible (and how)?
> >
> >sfdisk -R did not help me L it still shows the former size of disc.
> >
> >
> >
> >Thanks for hints
> >
> >Kind Regards
> >
> >/Radek
>
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