Difference between revisions of "Luks File"
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(Created page with "=My Info= It is reccomended to fill and encrypted data container with random data. You can however if you are in a hurry use a sparse file. dd of=crypt bs=1 count=0 seek=9...") |
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dd of=crypt bs=1 count=0 seek=900G | dd of=crypt bs=1 count=0 seek=900G | ||
| − | It will not allocate the space immediately. | + | It will not allocate the space immediately. We can fill it later. |
| + | |||
| + | losetup /dev/loop0 /path/to/crypt | ||
| + | |||
| + | cryptsetup luksFormat /dev/loop0 | ||
| + | |||
| + | cryptsetup luksOpen /dev/loop0 crypt | ||
| + | |||
| + | If we fill the mapper with zeros it will write random data to crypt (Really?) | ||
| + | |||
| + | dd if=/dev/zero of=/dev/mapper/crypt | ||
| + | |||
| + | mkfs.ext2 /dev/mapper/crypt | ||
| + | |||
| + | mount | ||
| + | |||
| + | |||
| + | ==Notes== | ||
| + | *http://stackoverflow.com/questions/257844/quickly-create-a-large-file-on-a-linux-system | ||
| + | *http://wiki.centos.org/HowTos/EncryptedFilesystem | ||
Latest revision as of 19:07, 2 February 2013
My Info
It is reccomended to fill and encrypted data container with random data.
You can however if you are in a hurry use a sparse file.
dd of=crypt bs=1 count=0 seek=900G
It will not allocate the space immediately. We can fill it later.
losetup /dev/loop0 /path/to/crypt
cryptsetup luksFormat /dev/loop0
cryptsetup luksOpen /dev/loop0 crypt
If we fill the mapper with zeros it will write random data to crypt (Really?)
dd if=/dev/zero of=/dev/mapper/crypt
mkfs.ext2 /dev/mapper/crypt
mount
