2018-08-30 08:26:38 UTC
Before prepearing LUKS on a previous system with an old-fashioned drive it
was recommended first to fill up the partition that was to be encrypted with
dd if=/dev/urandom of=/dev/sda1
The partition was about 750GB for which the above writing took about 24
hours to complete.
Now with a new SSD and where the partition to be encrypted is 1.52TiB (at
/dev/nvmeOn1p1) I run the same:
dd if=/dev/urandom of=/dev/nvmeOn1p1
However, after about 10 minutes, the following error is returned:
dd: writing to '/dev/nvmeOn1p1': No space left on device
7773105+0 records in
7773104+0 recirds out
3979829248 bytes (3.7GB) copied, 395.103072 seconds, 9.6MB/s
Does anyone know why this happens and perhaps how encryption can best be
prepared on an SSD?