Re: BLKPG changes pushed

[Curtis Gedak]

Jim Meyering wrote:
> ... I just tried to add a couple partitions (in free space),
> and each time, I got this:
>
>     $ sudo ./parted -s $dev u B mkpart F13-root $s2 $e2
>     Warning: WARNING: the kernel failed to re-read the partition table on
>     /dev/sda (Device or resource busy).  As a result, it may not reflect all
>     of your changes until after reboot.
>
> I thought the intent was to avoid such warnings when they do not apply.
> The kernel was indeed notified of the creation of the two new
> partitions, and I was able to create file systems on them.
>   

Do you have an active LVM on a partition on the drive?

If so then that might be the reason why the warning is encounted.  
Having an active LVM on a partition is similar to having a mounted 
partition in that the partition is busy.  I think that parted fails to 
detect active LVM partitions as being busy.

This problem was first brought to my attention by a GParted user.
GParted fails to edit/delete partitions if active LVM on same disk device
https://bugzilla.gnome.org/show_bug.cgi?id=608712

Regards,
Curtis Gedak