Upgrading to Junos OS Release 10.0 or Later with Dual-Root Partitioning on SRX Series Services Gateways

This topic includes the following sections:

To format the media with dual-root partitioning while upgrading to Junos OS Release 10.0 or later, use one of the following installation methods:

Installation from the boot loader using a TFTP server. This method is preferable if console access to the system is available and a TFTP server is available in the network.
Installation from the boot loader using a USB storage device. This method is preferable if console access to the system is available and the system can be physically accessed to plug in a USB storage device.
Installation from CLI using the special partition option. This method is recommended only when console access is not available. This installation can be performed remotely.

Note: After upgrading to Junos OS Release 10.0 or later, the U-boot and boot loader must be upgraded for the dual-root partitioning scheme to work properly.

Each of the aforementioned methods for installing Junos OS Release 10.0 or later with dual-root partitioning is described in detail in the following sections:

Installing Software on SRX Series Services Gateways from the Boot Loader Using a TFTP Server
Installing Software on SRX Series Services Gateways from the Boot Loader Using an USB Storage Device
Installing Software on SRX Series Services Gateways Using the Partition Option (CLI Procedure)
Installing Software on SRX Series Services Gateways Using the Partition Option (J-Web Procedure)

Installing Software on SRX Series Services Gateways from the Boot Loader Using a TFTP Server

See Installing Junos OS on the SRX Series Services Gateways from the TFTP Server for detailed information on installing Junos OS using a TFTP server.

Installing Software on SRX Series Services Gateways from the Boot Loader Using an USB Storage Device

See the Installing Software from the Boot Loader Using a USB Storage Device on SRX Series Services Gateways for detailed information on installing Junos OS using a TFTP server.

Installing Software on SRX Series Services Gateways Using the Partition Option (CLI Procedure)

To install Junos OS Release 10.0 with the partition option:

Upgrade the device to Junos OS Release 10.0 or later using the CLI or J-Web.
After the device reboots with Junos OS Release 10.0, upgrade the boot loader to latest version. See Upgrading the Boot Loader on SRX Series Services Gateways.
Reinstall the 10.0 image from the CLI using the request system software add command with the partition option. This will copy the image to the device, then reboot the device for installation. The device will boot up with the 10.0 or later image installed with the dual-root partitioning scheme.

When the partition option is used, the format and install process is scheduled to run on the next reboot. Therefore, it is recommended that this option be used together with the reboot option as shown in the example below.

Example

user@host>request system software add
 junos-srxsme-10.0R2-domestic.tgz no-copy no-validate partition reboot

Copying package junos-srxsme-10.0R2-domestic.tgz to var/tmp/install

Rebooting ...

The system will reboot and complete the installation.

This will format the internal media and install the new Junos OS image on the media with dual-root partitioning.

Note: This process might take 15 to 20 minutes. The system will not be accessible over the network during this time.

Warning: Using the partition option with the request system software add CLI command erases the existing contents of the media. Only the current configuration is preserved. Any important data should be backed up before starting the process.

Installing Software on SRX Series Services Gateways Using the Partition Option (J-Web Procedure)

To install Junos OS Release 10.0 or later :

In the J-Web interface, select Maintain>Software>Install Package.
On the Install Package page, enter the required information into the fields described in Table 132.
Click Fetch and Install Package. The software is activated after the device reboots.
This will format the internal media and install the new Junos OS image on the media with dual-root partitioning.

Table 132: 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 to format the internal media with dual-root partitioning.