Software

Managing Software Upgrades and Downgrades

You can use the J-Web interface to install upgrades from a remote server using FTP or HTTP, or, if necessary, by uploading the software image to the device. You can also downgrade the software from the J-Web interface.

• Installing Software Upgrades from a Remote Server
• Installing Software Upgrades by Uploading Files
• Downgrading the Software with the J-Web Interface

Installing Software Upgrades from a Remote Server

You can use the J-Web interface to install software packages that are retrieved with FTP or HTTP from the specified location.

Note: This procedure applies only to upgrading one JUNOS Software release to another or one JUNOS Software services release to another. To upgrade from the JUNOS Software to JUNOS Software services, see the Junos OS Migration Guide. Before installing the software upgrade, verify the available space on the internal media card. For information about verifying available internal media space, see the Junos OS Release Notes.

1. In the J-Web interface, select Maintain>Software>Install Package.
2. On the Install Remote page, enter the required information into the fields described in Table 196.

   Table 196: Install Package Summary

   Field	Function	Your Action
   Package Location (required)	Specifies the FTP or HTTP server, file path, and software package name.	Type the full address of the software package location on the FTP or HTTP server—one of the following: ftp://hostname/pathname/package-name http://hostname/pathname/package-name
   User	Specifies the username, if the server requires one.	Type the username.
   Password	Specifies the password, if the server requires one.	Type the password.
   Reboot If Required	If this box is checked, the device is automatically rebooted when the upgrade is complete.	Check the box if you want the device to reboot automatically when the upgrade is complete.
   Do not save backup	If this box is checked, the backup copy of the current Junos OS package is not saved.	Check the box if you want to save the backup copy of the Junos OS package.
   Format and re-partition the media before installation	If this box is checked, the storage media is formatted and new partitions are created.	Check the box if you want to format the internal media with dual-root partitioning.

3. Click Fetch and Install Package. The software is activated after the device reboots.

Installing Software Upgrades by Uploading Files

You can use the J-Web interface to install software packages uploaded from your computer. Before installing the software upgrade, you need to verify that there is enough available space on the internal media card.

Note: This procedure applies only to upgrading one JUNOS Software release to another or one JUNOS Software services release to another. To upgrade from JUNOS Software to JUNOS Software services, see the Junos OS Migration Guide.

1. In the J-Web interface, select Maintain>Software>Upload Package.
2. On the Upload Package page, enter information into the fields described in Table 197.

   Table 197: Upload Package Summary

   Field	Function	Your Action
   File to Upload (required)	Specifies the location of the software package on the local system.	Type the location of the software package, or click Browse to navigate to the location.
   Reboot If Required	If this box is checked the device is automatically rebooted when the upgrade is complete.	Select the check box if you want the device to reboot automatically when the upgrade is complete.
   Do not save backup	If this box is checked, the backup copy of the current Junos OS package is not saved.	Check the box if you want to save the backup copy of the Junos OS package.
   Format and re-partition the media before installation	If this box is checked, the storage media is formatted and new partitions are created.	Check the box if you want to format the internal media with dual-root partitioning.

3. Click Upload Package. The software is activated after the device has rebooted.

Downgrading the Software with the J-Web Interface

You can downgrade the Junos OS from the J-Web interface. For your changes to take effect, you must reboot the device.

To downgrade Junos OS with the J-Web interface:

1. In the J-Web interface, select Maintain>Software>Downgrade. The image of the previous version (if any) is displayed on this page.

   Note: After you perform this operation, you cannot undo it.

2. Select Downgrade to downgrade to the previous version of the software or Cancel to cancel the downgrade process.
3. When the downgrade process is complete, for the new software to take effect, click Maintain>Reboot from the J-Web interface to reboot the device.

   Note: To downgrade to an earlier version, follow the procedure for upgrading, using the software image labeled with the appropriate release.