Verifying Available Compact Flash Space

Before you start the upgrade, verify that you have enough space on the compact flash to successfully upgrade.

To see how much space is available on the compact flash, use the CLI operational mode command show system storage:

Filesystem              Size       Used      Avail  Capacity   Mounted on
/dev/ad0s1a             213M       119M        92M       57%  /
devfs                   1.0K       1.0K         0B      100%  /dev
devfs                   1.0K       1.0K         0B      100%  /dev/
/dev/md0                155M       155M         0B      100%  /junos
/cf                     213M       119M        92M       57%  /junos/cf
devfs                   1.0K       1.0K         0B      100%  /junos/dev/
procfs                  4.0K       4.0K         0B      100%  /proc
/dev/bo0s1e              24M        16K        24M        0%  /config
/dev/md1                168M       7.2M       147M        5%  /mfs
/dev/md2                 58M        42K        53M        0%  /jail/tmp
/dev/md3                7.7M       100K       7.0M        1%  /jail/var/etc
devfs                   1.0K       1.0K         0B      100%  /jail/dev
/dev/md4                1.9M       6.0K       1.7M        0%  /jail/html/oem

The show system storage command output displays information about the root file system on the compact flash on the line that contains only a forward slash (/) in the Mounted on column. In this example, the compact flash has 92 MB of available space.

If the show system storage command output displays:

• Available compact flash space—135 MB or more. See Installing Software Upgrades with the CLI to proceed with the upgrade.
• Available compact flash space—less than 135 MB. See Removing the Swap Partition to increase the compact flash space.