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Re: [linux-lvm] pvcreate problem





On Feb 13, 2008 2:34 PM, Yajith Ajantha Dayarathna | යජිත් අජන්ත දයාරත්න <yajith gmail com> wrote:
On Feb 13, 2008 2:07 PM, Mark Huth <mhuth redhat com> wrote:
Yajith Ajantha Dayarathna | ????? ????? ??????? wrote:
> Hi all,
> Forgive me if this is the wrong list to ask this question.
> I'm quite new to LVM(-and to this list) and one of my friends brought
> this question up to me..
>
> There is an error coming up when they try to "pvcreate"
>
> Below is the "fdisk -l" output.
>
> [root lwlsvr bin]# fdisk -l
>
>
> Disk /dev/cciss/c0d0: 145.6 GB, 145667358720 bytes
> 255 heads, 32 sectors/track, 34866 cylinders
> Units = cylinders of 8160 * 512 = 4177920 bytes
>
> Device Boot Start End Blocks Id System
> /dev/cciss/c0d0p1 * 1 25 101984 83 Linux
> /dev/cciss/c0d0p2 26 7554 30718320 83 Linux
> /dev/cciss/c0d0p3 7555 8068 2097120 82 Linux swap
> /dev/cciss/c0d0p4 8069 34866 109335840 5 Extended
> /dev/cciss/c0d0p5 8069 10578 10240784 83 Linux
> /dev/cciss/c0d0p6 10579 10587 36704 83 Linux
> /dev/cciss/c0d0p7 10588 10596 36704 83 Linux
> /dev/cciss/c0d0p8 10597 10725 526304 83 Linux
> /dev/cciss/c0d0p9 10726 10988 1073024 83 Linux
> /dev/cciss/c0d0p10 10989 11251 1073024 83 Linux
> /dev/cciss/c0d0p11 11252 11776 2141984 83 Linux
> /dev/cciss/c0d0p12 11777 12301 2141984 83 Linux
> /dev/cciss/c0d0p13 12302 12826 2141984 83 Linux
> /dev/cciss/c0d0p14 12827 13351 2141984 83 Linux
> /dev/cciss/c0d0p15 13352 13876 2141984 83 Linux
> /dev/cciss/c0d0p16 13877 34866 85639184 8e Linux LVM
>
> When a pvcreate is attempted on "/dev/cciss/c0d0p16" it produces the
> below output.
>
> [root lwlsvr informix]# pvcreate /dev/cciss/c0d0p16
> pvcreate -- can't open physical volume "/dev/cciss/c0d0p16" to get its
> size
>
AFAIK, the major/minor numbering scheme for block devices limits you to
15 partitions per device.

Mark

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thanks for the quick reply..
is it possible to create more than 15 partitions from fdisk, while major/minor numbering scheme limitation is there ?
could you point me to someplace i can read more about on this?

thanks again
--
Yajith Ajantha


even though the fdisk output contains "/dev/cciss/c0d0p16" there is no such device created under /dev/cciss/.
Is it because of the above mentioned limitation ?
--
Yajith Ajantha
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