Installing and Removing Flash Cards

For information about replacing flash cards, see ERX Hardware Guide, Chapter 4, Installing Modules, or E120 and E320 Hardware Guide, Chapter 4, Installing Modules.

Before you remove the second flash card (disk1) on the SRP 120 module or the SRP 320 module, you must first unmount the card with the no mount command. This command causes the file system to reject all subsequent requests for opening files on the flash card and closes all open files. When this is accomplished, the disk is marked as safely unmounted and a status message indicates that is safe to eject the disk. A status message is displayed when you issue the mount or no mount command:

• When you issue the mount command:

  % Device is mounted

  % Device is already mounted

  % Device is not present

• When you issue the no mount command:

  % Device is dismounted

  % Device is already dismounted

  % Device is not present

  % Command failed, files are open on device

  Caution: When you eject a mounted disk 0 while the router is in an operational state, the SRP module initiates a reload. When you eject a mounted disk 1, data on the disk can be corrupted, but the router does not reboot.

mount

• Use to mount the disk. If the disk was not safely unmounted previously, then before mounting the file system and permitting user access the command initiates disk and file system integrity checks. These checks are the same ones that are automatically performed when a disk is installed and the SRP module is reloaded.
• This command applies only to the flash card installed in slot 1 on an SRP 320 module. The command is rejected if you specify disk0, because that card is required for system operation and cannot be unmounted.
• Example

  host1#mount disk1

• The no version prepares the flash card for safe removal. The router subsequently behaves as if the second flash card is no longer present. To access the second card, you must either eject and re-insert the card, or issue the mount command for the card. You can use the force keyword to force the dismount even when files on the flash disk are open for modification.
• See mount.

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