Disk /dev/sda: 465,8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x0e2676e2

Device     Boot     Start       End   Sectors   Size Id Type
/dev/sda1  *         2048 156461055 156459008  74,6G 83 Linux
/dev/sda2       156463102 976771071 820307970 391,2G  5 Extended
/dev/sda5       156463104 168179711  11716608   5,6G 82 Linux swap / Solaris
/dev/sda6       168181760 976771071 808589312 385,6G 83 Linux

Partition 2 does not start on physical sector boundary.