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From: DervishD <lkml@dervishd.net> To: Petr Vandrovec <vandrove@vc.cvut.cz> Cc: Jeff Garzik <jgarzik@pobox.com>, Linux-kernel <linux-kernel@vger.kernel.org> Subject: Re: [RESEND] Hard disk LBA sector count is not always the same
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Mail-Followup-To: Petr Vandrovec <vandrove@vc.cvut.cz>, Jeff Garzik <jgarzik@pobox.com>, Linux-kernel <linux-kernel@vger.kernel.org> References: <20050523121424.GB339@DervishD> <42922175.8090005@pobox.com> <20050523200221.GE57@DervishD> <42925760.9010603@vc.cvut.cz>
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Hi Petr :)
Thanks for your answer :)
* Petr Vandrovec <vandrove@vc.cvut.cz> dixit: > >>DervishD wrote: > >>> current capacity is 156299375 > >>> native capacity is 156301488 > >>Hard drives have a feature that can reserve a certain amount of space= =20 > >>away from the user. > > Yes, I know, but the problem is that 2.4 kernels *does* reserve > >that space but 2.6 certainly not, and if I boot into 2.6 and then > >reboot into 2.4, then 2.4 *does NOT* reserve that space. > Yes. It is normal...
I'm surprised :??? Does 2.6 'stroking' by default? I supposed that maybe Debian people had activated stroking... =20 > > See the paragraph above: if I partition the disk under 2.6 the > >partition will have a bigger address than the one that will be > >available under 2.4, and that can give errors while accessing that > >extra sectors. What can I do? For technical limitations in my box, I > >have to use 2.6 for repartitioning that disk (and I will be doing > >that in less than a month) and this will lead to unaccesible sectors > >when I boot back into my usual 2.4 kernel :( > (1) You do not have to create partition over full disk.
I would prefer to do it. Otherwise I have to calculate where the partition must end in order to not disturb the kernel. Moreover, in that space will go the swap partition, probably... =20 > (2) If you'll build your 2.4.x kernel with CONFIG_IDEDISK_STROKE=3Dy > ('Auto-Geometry Resizing support'), I bet that your problems with 2.4.x > kernels disappear.
I'll try right now... YES, it works!. I don't understand, my BIOS is AMI, not Awards, and I assumed that the stroke option was used only for Awards BIOS'es. I've looked at the code in the kernel and it doesn't seem to be particular for Award :?? It should be specified in the documentation.
Thanks a lot for your suggestion and for solving my problem :)
Ra=FAl N=FA=F1ez de Arenas Coronado
--=20 Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net & http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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