Welcome to fdisk (util-linux 2.29.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Device does not contain a recognized partition table.
Created a new DOS disklabel with disk identifier 0xd50ae9f0.

Command (m for help): Partition type
   p   primary (0 primary, 0 extended, 4 free)
   e   extended (container for logical partitions)
Select (default p): Partition number (1-4, default 1): First sector (2048-536870911, default 2048): Last sector, +sectors or +size{K,M,G,T,P} (2048-536870911, default 536870911): 
Created a new partition 1 of type 'Linux' and of size 5 GiB.

Command (m for help): The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

2018-10-12 11:05:55 mkdir -p /var/tmp
2018-10-12 11:05:55 mke2fs -t ext3 -b 1024 -J size=1 -q /dev/vda1
2018-10-12 11:06:00 mount -t ext3 /dev/vda1 /var/tmp
sed -e 's/{DEFAULT_METADATA}/1.2/g' \
-e 's,{MAP_PATH},/run/mdadm/map,g'  mdadm.8.in > mdadm.8
/usr/bin/install -D -m 644 mdadm.8 /usr/share/man/man8/mdadm.8
/usr/bin/install -D -m 644 mdmon.8 /usr/share/man/man8/mdmon.8
/usr/bin/install -D -m 644 md.4 /usr/share/man/man4/md.4
/usr/bin/install -D -m 644 mdadm.conf.5 /usr/share/man/man5/mdadm.conf.5
/usr/bin/install -D -m 644 udev-md-raid-arrays.rules /lib/udev/rules.d/63-md-raid-arrays.rules
/usr/bin/install -D -m 644 udev-md-raid-assembly.rules /lib/udev/rules.d/64-md-raid-assembly.rules
/usr/bin/install -D  -m 755 mdadm /sbin/mdadm
/usr/bin/install -D  -m 755 mdmon /sbin/mdmon
Testing on linux-4.19.0-rc5-00182-gd595567 kernel
tests/02lineargrow... FAILED - see /var/tmp/log for details
Testing on linux-4.19.0-rc5-00182-gd595567 kernel
tests/02r1add... succeeded
Testing on linux-4.19.0-rc5-00182-gd595567 kernel
tests/02r1grow... succeeded
Testing on linux-4.19.0-rc5-00182-gd595567 kernel
tests/02r5grow... succeeded
Testing on linux-4.19.0-rc5-00182-gd595567 kernel
tests/02r6grow... succeeded