Todd,
Before you run mkfs...., understand that your device sdb1 will be
formatted(all previous data will be gone).  So be VERY CAREFUL with mkfs....



On Sun, Jul 29, 2012 at 7:37 PM, Todd And Margo Chester <
[log in to unmask]> wrote:

> Hi All,
>
> I can set up "/dev/mapper/lin-bak" with
>
>     # cryptsetup luksOpen /dev/sdb1 lin-bak
>
> but it disappears after I reboot. This messes up my
> crypttab/fstab. Any idea what I am doing wrong?
>
> Many thanks,
> -T
>