To check for this partition misalignment, use the command 'fdisk -l' (lowercase Lima):
[Expert@SomeFirewall]# fdisk -l
Disk /dev/sda: 240.1 GB, 240057409536 bytes, 468862128 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
Disk label type: dos
Disk identifier: 0x00023875
Device Boot Start End Blocks Id System
/dev/sda1 * 63 610469 305203+ 83 Linux
Partition 1 does not start on physical sector boundary.
/dev/sda2 610470 35696429 17542980 82 Linux swap / Solaris
Partition 2 does not start on physical sector boundary.
/dev/sda3 35696430 468857024 216580297+ 8e Linux LVM
Partition 3 does not start on physical sector boundary.
A system with properly aligned partitions won't have the "does not start on physical sector boundary" messages. It should look like this:
[Expert@SomeFirewall]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sda: 400.1 GB, 400088457216 bytes, 781422768 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
Disk label type: gpt
Disk identifier: 01234567-89AB-CDEF-0123-456789ABCDEF
# Start End Size Type Name
1 2048 4095 1M BIOS boot parti
2 4096 618495 300M Microsoft basic
3 618496 33124351 15.5G Linux swap
4 33124352 781422591 356.8G Linux LVM