As I understand anaconda uses parted to partition (starting from centos 6), using this as example (kickstart configuration file): clearpart --all --drives=sda --initlabel part /boot --asprimary --size=200 --fstype=ext2 --ondisk=sda part swap --asprimary --size=16384 --fstype=swap --ondisk=sda part / --asprimary --size=512000 --fstype=ext4 --ondisk=sda part /scratch --asprimary --size=1 --grow --fstype=ext4 --ondisk=sda I can see no problems in parted: GNU Parted 2.1 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) p Model: Adaptec OS (scsi) Disk /dev/sda: 1999GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 211MB 210MB primary ext2 boot 2 211MB 537GB 537GB primary ext4 3 537GB 554GB 17.2GB primary linux-swap(v1) 4 554GB 1999GB 1445GB primary ext4 Yet, fdisk –l report: Disk /dev/sda: 1999.3 GB, 1999307276288 bytes 255 heads, 63 sectors/track, 243068 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0006e122 Device Boot Start End Blocks Id System /dev/sda1 * 1 26 204800 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 26 65297 524288000 83 Linux /dev/sda3 65297 67386 16777216 82 Linux swap / Solaris /dev/sda4 67386 243069 1411177472 83 Linux As you can see, /dev/sda1 End at 26 and /dev/sda2 Start at 26. But, fdisk –lu report otherwise: Disk /dev/sda: 1999.3 GB, 1999307276288 bytes 255 heads, 63 sectors/track, 243068 cylinders, total 3904897024 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0006e122 Device Boot Start End Blocks Id System /dev/sda1 * 2048 411647 204800 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 411648 1048987647 524288000 83 Linux /dev/sda3 1048987648 1082542079 16777216 82 Linux swap / Solaris /dev/sda4 1082542080 3904897023 1411177472 83 Linux I assume I can ignore it and it’s a bug on fdisk? This does not happen on 5.7.