Format drive larger than 2TiB in Alicloud

date: Aug 28, 2019


This is a quick reference for formatting Alicloud cloud drive that is higher than 2 TiB because the original guide is messy.


  1. Check parted and e2fsprogs are both installed.
  2. Usually cloud drive is automatically mounted at /dev/vdb, /dev/vdc, etc. check using fdisk -l.
  3. Run parted /dev/vdx.
  4. In new prompt, run mklabel gpt.
  5. Create partition.
    • For ext4: mkpart primary ext4 0 -1.
    • For xfs: mkpart primary xfs 0 -1.
  6. print to check partition then exit by exit.
  7. Run partprobe to make system re-read the partition table.
  8. Set property to partion.
    • For ext4: mke2fs -O 64bit,has_journal,extents,huge_file,flex_bg,uninit_bg,dir_nlink,extra_isize /dev/vdb1.
    • For xfs: mkfs -t xfs /dev/vdb1.
  9. mkdir /storage && mount /dev/vdb1 /storage to mount at /storage.
  10. umount /storage to un-mount.

Startup Setup

  1. Backup fstab by cp /etc/fstab /etc/fstab.bak.
  2. echo /dev/vdb1 /storage ext4 defaults 0 0 >> /etc/fstab for ext4 and echo /dev/vdb1 /storage xfs defaults 0 0 >> /etc/fstab for xfs.
  3. Verify by cat /etc/fstab.


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