what to do with a new harddisk

[Paul Howarth]

Charles Li wrote:
> I can ignore this error?
> 
>>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.
>>Syncing disks.

Yes. It's just a warning. You rebooted and the kernel started using the 
new table, which you can tell because the partition type changed to 
"Linux LVM" as you requested.

Paul.