The following upgrade methods format the internal media before installation:
■
Installation from the boot loader using a TFTP server
■
Installation from the boot loader using a USB storage device
■
Installation from the CLI using the special
partition
option (available in JUNOS
Release 10.1)
The following upgrade methods retain the existing partitioning scheme:
■
Installation using the CLI
■
Installation using J-Web
WARNING:
Upgrade methods that format the internal media before installation wipe
out the existing contents of the media. Only the current configuration will be
preserved. Any important data should be backed up before starting the process.
NOTE:
Once the media has been formatted with the dual-root partitioning scheme,
you can use conventional CLI or J-Web installation methods, which retain the existing
partitioning and contents of the media, for subsequent upgrades.
Upgrading to JUNOS Release 10.1 Without Transitioning to Dual-Root Partitioning
If dual-root partitioning is not desired, use the conventional CLI and J-Web installation
methods, as described in the
JUNOS Software Administration Guide for Security Devices
.
Upgrading to JUNOS Release 10.1 with Dual-Root Partitioning
To format the media with dual-root partitioning while upgrading to JUNOS Release
10.1, 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 Release 10.1, the U-boot and boot loader must be
upgraded for the dual-root partitioning scheme to work properly.
Dual-Root Partitioning Scheme Documentation for SRX Series Services Gateways
■
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Dual-Root Partitioning Scheme Documentation for SRX Series Services Gateways