# check-disk

#### Syntax

check-disk [ repair ] [ disk0 | disk1 ]

#### Release Information

Command introduced before JunosE Release 7.1.0.
disk0 and disk1 keywords added in JunosE Release 7.2.0.
Privileged Exec mode added in JunosE Release 8.0.0.

#### Description

Finds and repairs structural inconsistencies and damage in the DOS file system in unmounted flash cards on the primary SRP module. There is no no version.

#### Options

- disk0—Specifies flash card in slot 0 of the SRP module; default value is disk0; available only in Boot mode, because disk0 cannot be in an unmounted state in a router outside of Boot mode
- disk1—Specifies flash card in slot 1 of the SRP module; supported only on the E120 router and the E320 router

#### Mode

Boot, Privileged Exec