formatting external harddisk

[Philippe Landau]

Philippe Landau wrote:
>>> found no GUI formatting tool (is there one ?)
>> GParted
> i installed it now, switched to sda,
> created a disk label (default: dos),
> clicked on "unallocated", partition: new, fat32,
> apply but get "Error while creating /dev/sda1"
it worked now after a reboot.
is there a way to discover and tag bad blocks ?

kind regards    philippe