Installing And Removing Flash Cards - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SYSTEM BASICS CONFIGURATION GUIDE 2010-10-04 Configuration Manual

Installing and Removing Flash Cards

mount
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rebooting procedure. See "Booting the System" on page 495. Do not reboot the router by
switching it off and on.
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.
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.
Chapter 6: Managing Modules
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