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organelle-m resize SD card

  • get a shell on the organelle-m, and become root

    sudo su -
    
  • check what filesystem is mounted at /sdcard (e.g. /dev/mmcblk0p3)

    df -h
    
  • remount writeable

    scripts/remount-rw.sh
    
  • launch fdisk interactively

    fdisk /dev/mmcblk0
    
  • in fdisk shell:

    • list partitions

      p
      
    • copy Start of the partition with the device we saw in df -h

    • delete partition

      d
      
    • choose partition to delete. we want the one with the device we saw in df -h

      3
      
    • new partition

      n
      
    • select partition type. we want "primary"

      p
      
    • accept default for partition number (partition 3)

    • paste the Start number we copied for first sector

    • accept default for last sector

    At this point I got a warning: Partition #3 contains a ext4 signature. and was prompted to remove it or not. I selected yes.

    • write the changes

      w
      

    I got a warning here: Re-reading the partition table failed.: Device or resource busy, and fdisk exited. Things still worked fine though, YMMV

    • quit fdisk (if that above stuff didn't happen)

      q
      
  • reboot (but we're not finished)

    reboot
    
  • get a shell back, become root, and remount rw again

    sudo su -
    scripts/remount-rw.sh
    
  • run resize2fs on the /sdcard device (maybe check df -h again)

    resize2fs /dev/mmcblk0p3 # /sdcard from df
    
  • reboot and you're all set

    reboot
    
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