mdadm: /dev/sda1 is too small: 0K - solution

I was creating a RAID array and got this error: mdadm: /dev/sda1 is too small: 0K
mdadm: create aborted

Of course sda1 is not too small, both partitions sda1 and sdb1 are identical in size:

Disk /dev/sda: 2000.3 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1         974     7823623+  83  Linux
/dev/sda2             975        3407    19543072+  83  Linux
/dev/sda3   *        3408       60801   461017305   83  Linux
/dev/sda4           60802      243201  1465128000    5  Extended
/dev/sda5           60802      231009  1367195728+  83  Linux
/dev/sda6          231010      243201    97932208+  83  Linux

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         974     7823623+  83  Linux
/dev/sdb2             975        3407    19543072+  83  Linux
/dev/sdb3   *        3408       60801   461017305   83  Linux

 The solution is simple, use partprobe to read-read the partitions

Just run:

partprobe

And it will work, but the weird thing is that these partitions were created a few reboots ago.  This is obviously some weird quick with the older mdadm version.


Tags:

mdadm, dev, sda, solutioni, creating, raid, array, aborted, partitions, sdb, identical, disk, gb, bytes, sectors, cylinders, identifier, linux, extended, partprobe, reboots,

Latest Articles

  • RTL8821AU Setup Configure Wifi Realtek 8821 in Linux Debian Mint Ubuntu Howto
  • How To Tell Which Repository a Package Comes From Debian Mint Ubuntu
  • How To Reload All Kernel Modules And List Required Moduels for Each Device - Linux Mint Debian Ubuntu Troubleshooting
  • Debian Ubuntu Mint How To Change Default Display Manager
  • Ubuntu Mint Debian Howto Execute Command / Script / Program Upon Wakeup From Sleep
  • Linux Debian Mint Ubuntu How To Add Non-Free Repositories and Contrib
  • Debian Ubuntu Mint DHCP dhclient quits and how to make it persistent if first attempt to get DHCP lease fails
  • ssh Too many authentication failures not prompting for password
  • LightDM Mint Ubuntu Debian won't start errors Nvidia Graphics
  • WARNING: Unable to determine the path to install the libglvnd EGL vendor library config files. Check that you have pkg-config and the libglvnd development libraries installed, or specify a path with --glvnd-egl-config-path. Linux Ubuntu Mint Debian E
  • How To Upgrade Linux Mint 18.2 to 18.3 to 19.x and 20.x
  • MP3s Won't Play / ID3 Version 2.4 Issues in Cars and Other MP3 Players/CDs/DVDs Solution
  • LXC Containers LXD How to Install and Configure Tutorial Ubuntu Debian Mint
  • GlusterFS HowTo Tutorial For Distributed Storage in Docker, Kubernetes, LXC, KVM, Proxmox
  • Ubuntu Mint audio output not working pulseaudio "pulseaudio[13710]: [pulseaudio] sink-input.c: Failed to create sink input: too many inputs per sink."
  • How To Shrink Dynamically Allocated VM QEMU KVM VMware Disk Image File
  • How To Enable Linux Swapfile Instead of Partition Ubuntu Mint Debian Centos
  • 404 Not Found [IP: 151.101.194.132 80] apt update Debian 11 Bullseye Solution The repository 'http://security.debian.org bullseye/updates Release' does not have a Release file.
  • WARNING: Can't download daily.cvd from db.local.clamav.net freshclam clamav error solution
  • (firefox:9562): LIBDBUSMENU-GLIB-WARNING **: Unable to get session bus: Failed to execute child process "dbus-launch" (No such file or directory) Solution