Partitions?

[James Sefton <james-3k2nYdb70uTQXOPxS62xeg@public.gmane.org>]

Hi,

I have got my /dev/bcache0 device showing up and attached the cache.

I then used fdisk to add a single partition to it but it gave an error on exit:

WARNING: Re-reading the partition table failed with error 22: Invalid argument.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)


I have had this before quite a bit and often have to run partprobe after leaving 
fdisk for the partition table to be read and partitions populated in /dev.

However, when running partprobe (or partprobe /dev/bcache0) I get the following:

Error: Error informing the kernel about modifications to partition 
/dev/bcache0p1 -- Invalid argument.  This means Linux won't know about any 
changes you made to /dev/bcache0p1 until you reboot -- so you shouldn't mount it 
or use it in any way before rebooting.
Error: Failed to add partition 1 (Invalid argument)


I checked /dev and confirmed that bcache0p1 was not present.


What did I do wrong?

Many thanks,

James