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Re: Wrong disk size when partitioning
From: |
Joel Granados |
Subject: |
Re: Wrong disk size when partitioning |
Date: |
Wed, 3 Dec 2008 04:42:24 -0500 (EST) |
----- "Raj Mathur" <address@hidden> wrote:
> On Tuesday 02 Dec 2008, Joel Granados wrote:
> > Hi Raj:
> >
> > What does `parted DEVCE print free` spit out?
>
> Well, I rebooted into an Ubuntu live CD, which allowed me to view the
>
> entire disk and make 15 partitions in a GPT partition table on it.
> It's working fine. However, see under...
>
> > I'm wondering if it would help to just erase the partition table
> `dd
> > if=/dev/zero of=DEVICE bs=1024 count=20` and then create a new one
> > from scratch.
>
> Oh damn, I thought the partition table was only the first 1024 bytes,
>
Well, the count=20 is a bit of an overkill, but will ensure that you erase
everything. It would also be good to wipe out the last sector as there is
where gpt stores its backup partition table.
> and had zeroed that out. That hadn't helped.
>
> In any case, there's still a potential problem with the other disks.
>
> Though they are working fine (15 partitions in a GPT each), no program
>
> that I've tried is able to show the table (/dev/sdc is one of the
> other
> 5 identical disks. All of them show the same result):
So let me get this strait :)
/dev/{sda,sdb,sdc,sdd} show an error message. and /dev/sde gives the correct
output?
what application did you use to partition the other disks?
>
> parted /dev/sdc print
> Error: Unable to open /dev/sdc - unrecognised disk label.
>
> While on the new disk (partitioned through parted on Ubuntu live):
>
> parted /dev/sde print
> Disk /dev/sde: 750GB
> Sector size (logical/physical): 512B/512B
> Partition Table: gpt
> Number Start End Size File system Name Flags
> 1 17.4kB 50.0GB 50.0GB primary raid
> 2 50.0GB 100GB 50.0GB primary raid
> 3 100GB 150GB 50.0GB primary raid
> 4 150GB 200GB 50.0GB primary raid
> 5 200GB 250GB 50.0GB primary raid
> 6 250GB 300GB 50.0GB primary raid
> 7 300GB 350GB 50.0GB primary raid
> 8 350GB 400GB 50.0GB primary raid
> 9 400GB 450GB 50.0GB primary raid
> 10 450GB 500GB 50.0GB primary raid
> 11 500GB 550GB 50.0GB primary raid
> 12 550GB 600GB 50.0GB primary raid
> 13 600GB 650GB 50.0GB primary raid
> 14 650GB 700GB 50.0GB primary raid
> 15 700GB 750GB 50.2GB primary raid
>
> This is on Debian Etch running kernel 2.6.18-5-686. While it's not
> currently impacting the system in any way, it's still a bit worrying
> to
> think that I might not be able to view or change the partitions on the
>
> other disks at a later stage in the running kernel.
>
> Regards,
>
> -- Raju
> --
> Raj Mathur address@hidden
> http://kandalaya.org/
> GPG: 78D4 FC67 367F 40E2 0DD5 0FEF C968 D0EF CC68 D17F
> PsyTrance & Chill: http://schizoid.in/ || It is the mind that
> moves
>
>
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--
Joel Andres Granados
Red Hat / Brno Czech Republic