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You have the order wrong. Assuming sdb1 ... sudo dd if=/dev/urandom of=/dev/sdb1 sudo cryptsetup -y -v luksFormat /dev/sdb1 sudo cryptsetup luksOpen /dev/sdb1 $name #change "$name" to any name you wish #now format mkfs.ext4 /dev/mapper/$name sudo mkdir /media/mount_point sudo mount /dev/mapper/$name /media/mount_point See: ...


For some reason the encryption doesn't seem to work properly. Until (if) that is resolved, reinstall without encrypting the disk.


I fix this problem with those steps: check the size (parted) of the physical partition (ie. /dev/sda5) is smaller than the lvm Physical volume (PV) (pvscan) disable lvm pvchange -an with fdisk -l, write down the starting block for each partition with fdisk delete the partition (ie. /dev/sda5) and write changes with fdisk create a new partition of the same ...


Current problem When using Ubuntu Full Disk Encryption(that is based on dm-crypt with LUKS) to set up full system encryption, the encryption key is kept in memory when suspending the system. This drawback defeats the purpose of encryption if you carry around your suspended laptop a lot. One can use the cryptsetup luksSuspend command to freeze all I/O and ...

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