install*.sh: add short sleep after parted commands
I wasn't able to install to my Optane SSD due to the following error:
Formatting /dev/nvme0n1p1 to vfat...
mkfs.fat 4.1 (2017-01-24)
mkfs.vfat: unable to open /dev/nvme0n1p1: No such file or directory
Target install-efi failed
A couple lines later I see:
[ 10.265401] nvme0n1: p1 p2 p3
Then looking at the device itself after booting from a USB stick:
root@intel-corei7-64: ~# ls /dev/nvme0n1*
/dev/nvme0n1 /dev/nvme0n1p1 /dev/nvme0n1p2 /dev/nvme0n1p3
So it looks like the parted commands return before the device node is
actually created.
Work around this issue by waiting for device nodes for a short duration.
Signed-off-by: California Sullivan <california.l.sullivan@intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
