Re: md lock issue, I suppose

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"partprobe" command helps me in cases i'm adding partitions on device
which is already partitions which are mounted

On Thu, Jun 24, 2010 at 10:07 PM, Piergiorgio Sartor
<piergiorgio.sartor@xxxxxxxx> wrote:
> Hi,
>
> thanks for the hint, basically that exactly
> what was needed, i.e. informing the kernel
> about the new partition.
>
> The only different with your suggestion was
> to use "addpart", instead of "partx".
>
> Thanks again,
>
> bye,
>
> pg
>
> On Tue, Jun 22, 2010 at 08:22:33AM +1000, Neil Brown wrote:
>> On Mon, 21 Jun 2010 23:25:21 +0200
>> Piergiorgio Sartor <piergiorgio.sartor@xxxxxxxx> wrote:
>>
>> > Any other suggestions or ideas?
>> >
>>
>> You cannot use the BLKRRPART ioctl while any partition of the device is open.
>> However you can use BLKPG_ADD_PARTITION to add a new partition providing it
>> doesn't overlap any existing partition.
>> Unfortunately parted doesn't use this ioctl, nor am I aware of anything which
>> does. (Google suggests something called DeviceKit does, but I know nothing
>> about that).
>> You could write a program which reads the the partition table and tries to
>> add each partition individually.  Some might fail but others might succeed.
>> ... or maybe you don't need to- 'partx' in util-linux-ng seems to do what you
>> want.
>>
>> NeilBrown
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> --
>
> piergiorgio
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