Ubuntu Pastebin

Paste from jakkio at Mon, 14 Sep 2015 14:22:35 +0000

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root@ubuntu-gnome:~# bash erase
dm-crypt
dd: writing to ‘/dev/sda4’: No space left on device
4194305+0 records in
4194304+0 records out
2147483648 bytes (2.1 GB) copied, 85.9362 s, 25.0 MB/s

real	1m29.373s
user	0m3.136s
sys	0m24.152s

openssl
error writing output file

real	0m23.735s
user	0m1.140s
sys	0m2.552s

shred
shred: /dev/sda4: pass 1/1 (random)...
shred: /dev/sda4: pass 1/1 (random)...403MiB/2.0GiB 19%
shred: /dev/sda4: pass 1/1 (random)...851MiB/2.0GiB 41%
shred: /dev/sda4: pass 1/1 (random)...1.2GiB/2.0GiB 63%
shred: /dev/sda4: pass 1/1 (random)...1.7GiB/2.0GiB 85%
shred: /dev/sda4: pass 1/1 (random)...2.0GiB/2.0GiB 100%

real	0m23.107s
user	0m3.584s
sys	0m1.012s
root@ubuntu-gnome:~# ^C



contents of erase:


crypt_erase() {

cryptsetup open --type plain /dev/sda4 container --key-file /dev/random
dd if=/dev/zero of=/dev/sda4
cryptsetup close container

}

echo dm-crypt
time crypt_erase

echo
echo openssl
time openssl enc -aes-128-ctr -v -pass pass:"$(openssl rand -base64 128)" -nosalt < /dev/zero > /dev/sda4

echo
echo shred
time shred -v -n1 /dev/sda4
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