Check /boot for free space

1. On the Oracle® Enterprise Session Border Controller, check for adequate space in the /boot volume to upload the new boot image and bootloader. Use the check-space-remaining boot command.

   ORACLE# check-space-remaining boot
   code: 24759488/25760512 bytes (99%) remaining
   ORACLE#

   You may delete files from an SFTP client if you need to free space.