I am in doubt whether I have partitioned my hdd correctly as GPT on a BIOS motherboard. I used gparted to partition and I don't know if I aligned the beginning/end of the disk correctly, used correct flags etc. The disk in question is sdc:     $ sudo lsblk -fNAME   FSTYPE LABEL           MOUNTPOINTsda                           sda1 ntfs   System Reserved sda2 ntfs   win7            sda3 ntfs   WINYANCI        sdb                           sdb1                        sdb5 ext4   YAHSI           sdc                           sdc1                        sdc2 swap                   [SWAP]sdc3 ext4                   /sdc4 ext4                   /homesdc5 ext4   store1          sdc6 ntfs   store2          sdd                           sdd1                        sdd2 ntfs   DEPO            sdd5 ntfs   HUSUSI          sr0  here is what gdisk shows:$ sudo gdisk /dev/sdcGPT fdisk (gdisk) version 0.8.8Partition table scan:  MBR: protective  BSD: not present  APM: not present  GPT: presentFound valid GPT with protective MBR; using GPT.Command (? for help): pDisk /dev/sdc: 1953525168 sectors, 931.5 GiBLogical sector size: 512 bytesDisk identifier (GUID): 2758BB06-C7E7-451B-9C92-F1B278721BB6Partition table holds up to 128 entriesFirst usable sector is 34, last usable sector is 1953525134Partitions will be aligned on 2048-sector boundariesTotal free space is 3437 sectors (1.7 MiB)Number  Start (sector)    End (sector)  Size       Code  Name   1            2048            6143   2.0 MiB     EF02     2            6144         8394751   4.0 GiB     8200     3         8394752        76754943   32.6 GiB    EF00     4        76754944       174409727   46.6 GiB    0700     5       174409728      1346283519   558.8 GiB   0700     6      1346283520      1953523711   289.6 GiB   0700  and parted shows this.Are there any mistakes?
Partitioning correctly for GPT in BIOS system
partition;gpt
To check if all partitions are properly aligned to 1MiB you should divide the start sector by 8. Let's see:1346283520/8=168285440174409728/8=2180121676754944/8=95943688394752/8=10493446144/8=7682048/8=256It looks good. The next thing is to check if the size of the partitions can also be divided by 8:(19535237111346283520+1)/8=75905024(1346283519174409728+1)/8=146484224(17440972776754944+1)/8=12206848(767549438394752+1)/8=8545024(83947516144+1)/8=1048576(61432048+1)/8=512It also looks good. You divide by 8 because of the technology called advanced format. Just look at the following images:But this concerns only disks that have this feature. If you don't have a disk with the advanced format technology, it doesn't matter what alignment you use. Most of modern disks use this thing, and most of partition tools align partitions to 1MiB by default. 