Junos Software service Release version 19. If there are any vmhost coredumps, copy them from /var/crash on the vmhost to Junos OS VM /var/tmp : request vmhost file-copy crash from-jnode <core-node-xxx. Introduction to Next Generation Routing Engine (NG-RE): NG-RE is a new RE model sharing common infrastructure for multiple platforms such as MX and PTX. Only oder devices like MX80/MX104 support the "request system software" command. When the reboot is complete, the switch displays the login prompt. 2R1. You can use this command on either Routing Engine in a dual-Routing Engine system. 8. Upgrading or downgrading Junos OS might take several hours, depending on the size and configuration of the network. tgz or request vmhost software add pathvector-juniper. tgz (or appropriate file for current JunOS version) Tell RE1 to upgrade the firmware on its next reboot (NOTE: this can only be done when the RE is the master) request system firmware upgrade re i40nvm. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. Perform a unified in-service software upgrade (ISSU). VM Host Operations and Management. Modification History. Only oder devices like MX80/MX104 support the "request system. Stop the host OS and Junos OS running on the device. The primary objective is: Introduction of NG-RE. Description. You can see this is the case by doing the request vmhost software rollback and rebooting. request vmhost software add (Multiple Packages) user@host> request vmhost software add set [/var/tmp/junos-vmhost-install-ptx-x86-64-15. Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. Let us know what you think. reboot —(Optional) After adding the software package or bundle, reboot the system. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. To download and install FreeBSD 11. 4R3-S2. On this platform, only "request vmhost software" is supported, as with every NG-RE platform. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the MX Series. 4R2. Solution This behavior is seen when one or more of the following conditions are met: VM Host requires an upgrade Transient hardware error False alarm RE faulty. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. or the 'request vmhost software add' command on the package. For example, to upgrade the QFX10002-60C device from the installed personality of QFX10002-60C to the new personality of PTX10002-60C device using the PXE Boot Server Option: Copy the image you want installed on the QFX10002-60C device to the PXE. Hello Community, Planning to upgrade two 204 MX routers (each with single RE) from 18. update_os_parsers] Parsing device output in. You can use this procedure to upgrade Junos OS on device with a single Routing Engine. tgz Junos Validation begin. Create a recovery snapshot of the currently running and active file system partitions on the backup disk to recover the primary disk in case of failure. Product Affected ACX, EX, MX, PTX, QFX, NFX, SRX Alert Description. Study ResourcesThis section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. Roll back the Junos OS and the host OS software packages to the previous versions. 10. In this case, we need to bring both REs onto the same Junos OS release, copy the Junos OS installation file that is available on one RE, and then take it to the other RE by using a USB device. user@host> request vmhost software add <package name> Reboot: user@host> request system reboot . 226Add the VM host image again and reboot the device to clear the alarm. This sample code audits all changes to the configuration secret data and sends the logs to a file named syslog:This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. S. Bases: jnpr. On this platform, only "request vmhost software" is supported, as with every NG-RE platform. Load the firmware file to RE1. Config (dev, mode=None, **kwargs) [source] ¶. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the MX Series. Input your product in the "Find a Product" search box. By default, the Host Software package on QFX-series platforms is not upgraded by the <request-package-add> RPC. Solution. 1. 10. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. Rebooting occurs only if the upgrade is successful. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS. re0 | re1. EX4300. (Optional) Specify the Routing Engine on which Junos OS and the host OS are to be rebooted. At the moment I can only seem to get basic info like this :Configuring LAN access on the NFX150 management port¶. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. Article IDTN303. 4R2-S1 is now available. 7 and RE1 is the backup with 15. update_os] Issuing command: request vmhost software add /var/tmp/junos-vmhost-install-ptx-x86-64-18. root> request vmhost software add /var/tmp/junos-vmhost-install-mx-x86-64-19. 1R1 New and Changed Features Hardware. 1R3-S9 is now available. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. Migration, Upgrade, and Downgrade Instructions. Initializes an SSD in the specified external SSD slot. Devices in a chassis cluster can be upgraded separately one at a time. 2R3, all Junos OS products which were previously running on FreeBSD 11. For upgrading Cul -u; on. Run the VMHost upgrade command as follows: > request vmhost software add /var/tmp/junos-vmhost-install-ex92xx-x86-64-17. The following output will be seen when attempting to upgrade: root@ex9200-re0> request vmhost software add /var/tmp/junos-vmhost-install-ex92xx-x86-64-21. When the reboot is complete, the switch displays the login prompt. [edit system] syslog {. tgz in the request system software add command. In this case, we need to bring both REs onto the same Junos OS release, copy the Junos OS installation file that is available on one RE, and then take it to the other RE by using a USB device. Rebooting occurs only if the upgrade is successful. Select the Install Package as need and follow the prompts. util. The following options are available:When you use this method, you must specify the regular package in the request system software add command. The "force-host" option was not available for QFX5200 in Junos 15. The issue can be due to a corrupted Junos OS installation file. NEXT arrow_forward request vmhost zeroize. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. 4R3. The RE is booted with the boot image in set p . Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. tgz no. Users may encounter scenarios where the Junos VM is running a different version and the host VM is running an older version. request vmhost software add ; request vmhost software in-service-upgrade ; request vmhost software rollback; request vmhost zeroize; The output of following show commands are modified for the Routing Engine RE-PTX-X8-64G: show chassis environment routing-engine; show chassis hardware;You can use this procedure to upgrade Junos OS on router or switch with a single Routing Engine. Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. Input your product in the "Find a Product" search box. The RE-S-X6-64G ships with two SSDs installed in the slot labeled DISK1 and DISK2. 1R1. S. 11. modules. Solution. Select the Install Package as need and follow the prompts. STEP 2: Remove “Ads by Vmhost. 1F5, the statement request system software add installs a software package for the guest OS only for the MX2010 and MX2020 routers. Junos OS with upgraded FreeBSD for QFX platforms that are Linux based; this prefix indicates the image includes the host software as well as Junos OS. Use the 'request vmhost reboot' command to reboot the system. tgz re0 no-validate" This upgrade installs the host image along with the compatible Junos OS. S. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. MX960. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. user@host# run request vmhost software add junos-vmhost-install-x. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. request vmhost software add /var/tmp/junos-vmhost-install-mx-x86-64-20. Junos OS 22. Perform the following: user@mx10003> start shell user root password: <-- Type the root password. When the reboot is complete, the switch displays the login prompt. Customers in the United States and Canada use the following command: user@host> request system software add source /jinstall-host-qfx-5-x86-64-18. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. Junos Software service Release version 19. For installing the host software as well as Junos OS, specify the package name. tgz> reboot. 11 and got a little confused about below: from Juniper docHello all, I'm trying to upgrade a Juniper MX204 to the suggested J-TAC software release 18. The build image loaded on a device defines the personality of the device. 3R2. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the MX Series. request vmhost software in-service-upgrade. This is the recommended mode of upgrade because this method installs the host image along with the compatible Junos OS. tgz reboot 2021-02-26 07:19:54,117 | [INFO][junos_ops. Upgrading or downgrading Junos OS might take several hours, depending on the size and configuration of the network. Rebooting occurs only if the upgrade is successful. Roll back the Junos OS and the host OS software packages to the previous versions. Use this command to reboot the device software. Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. re1 Install package on RE1. Display snapshot details including Linux host kernel version, software version, and other package version details for both the sets of software in the backup disk. The unified ISSU must be in progress and you must issue this command from a router session other than the one on which you issued the request vmhost software in-service-upgrade command to launch the unified ISSU. set [package-names] —(Optional) Additional Information Before upgrading the software on the router, when you have a known stable system, issue the request vmhost snapshot command to back up the software. 1R1. userhost request vmhost software add vartmpjunos vmhost install ptx x86 64 151F5 from CS 101 at Faculty of Chemical and Food Technology STU. 17. Input your product in the "Find a Product" search box. S. However, installation using the vmhost package is. The NSSU feature enables you to upgrade the Junos OS software running on a switch or Virtual Chassis with redundant Routing Engines with minimal disruption to network traffic. Initially, you log in as the user root with no password. version) Adding the reboot command reboots the switch after the upgrade is installed. VM Host. For example: user@host> request vmhost software add /var/tmp/junos-vmhost-install-ptx-x86-64-18. 1R1. Copy the device configuration files back to the device. From the Version drop-down menu, select your version. Save the CѴ; in the /var/tmp directory. 3R2. 4R2-S1 is now available. 2R1. Because Junos OS Release 21. 4 File (s) Description Release File Date Downloads 64 Bit - MX High-End Series 23. This upgrade requires that you use a VM host package—for example, a junos-vmClean up temporary files, crash generated files, and log files located in the /var/tmp, /var/crash, and /var/log directories respectively on the host OS. The files under /config and /var. Behavior of the "request vmhost software add" command without the "re0/re1" option. 168. pkgadd (remote_package, vmhost=False, **kvargs) [source] ¶ Issue the RPC equivalent of the ‘request system software add’ command or the ‘request vmhost software add’ command on the package. Classic; Flipcard; Magazine;. Take a snapshot after the alarm clears > request. Subscribe. RE1> request vmhost software add /var/tmp/junos-vmhost-install-ms-x86-64-19. root> request vmhost software add /var/tmp/junos-vmhost-install-mx-x86-64-19. From the Type/OS drop-down menu, select Junos SR. Upgrade the SSD disk1 Cul -u;ĺ NOTE: In releases before Junos OS Release 18. Junos Software service Release version 16. 8. Junos Software service Release version 22. Description For Juniper Networks EX9200 Series switches with RE-S-EX9200-2X00x6 Routing Engines, the VMHost upgrade might fail because the firmware version of the i40e-nvm. Install or upgrade the Junos OS and host software packages on the device. Options request vmhost software add. Let us know what you think. 33 please update i40e NVM exitting with failure Input your product in the "Find a Product" search box. 1 release. 2R1 23 Jun 2023 gz. version) Adding the reboot command reboots the switch after the upgrade is installed. device_operations. JTAC sent this: -rw-r--r-- 1 root wheel…Download the VMHost image by navigating to Downloads and searching for EX92xx (make sure that you use the one listed as VMHost). 3R3. root> request vmhost software add /var/tmp/junos-vmhost-install-mx-x86-64-19. version) Adding the reboot command reboots the switch after the upgrade is installed. Do you have time for a two-minute survey?Hello Community, Planning to upgrade two 204 MX routers (each with single RE) from 18. tgz RE1> request vmhost software add /var/tmp/junos-vmhost-install-ms-x86-64-19. Note:2. 2R1, all Junos OS products which were previously running on FreeBSD 11. tgz warning: Host software installation has failed. Downloading Software Using a Browser (Junos OS) 109. xRx-Sx But the last step (3step) no-validate was mandatory to upgrade successfully (without no-validate at the end, the upgrade was failling with this errorDownloading Software (Junos OS) 108. In the QFX Series section of the Junos Platforms Download Software download page, select the QFX Series platform software you want to download. 14. On this platform, only "request vmhost software" is supported, as with every NG-RE platform. 2R3-S2 is now available. 1. tgz を指定します。. VMHOST platforms upgrade to WRL9 based JUNOS vmhost image or later. tgz reboot 2021-02-26 07:19:54,117 | [INFO][junos_ops. Description. Study Resources. Add the Pathvector extension provider: set system extensions providers pathvector license-type customer deployment-scope commercial. Help us improve your experience. For more information see VM Host Installation topic in Installation and Upgrade Guide . Hello Community, Planning to upgrade two 204 MX routers (each with single RE) from 18. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS. pkgadd (remote_package, vmhost=False, **kvargs) [source] ¶ Issue the RPC equivalent of the ‘request system software add’ command or the ‘request vmhost software add’ command on the package. Upgrading or downgrading Junos OS might take several hours, depending on the size and configuration of the network. Migration, Upgrade, and Downgrade Instructions. prepare-upgrade <image-filename>. 3. Modification to configurable link degrade threshold values (MX Series) —Starting with Junos OS Release 15. VI Privilege. 2X75-D435. x based Junos OS. 2021-09-29: Removed NFX150 and NFX350 from taxonomy, since the syntax list compares CLI on NFX250 between nfx. For information about the contents of the jinstall package and details of the installation process, see the Junos OS Basics in the QFX Series documentation. scp://hostname/pathname (available only for Canada and U. 3R1 onwards, when 'request vmhost halt' is executed, the system reboots after exactly 30 minutes instead. xRx-Sx But the last step (3step) no-validate was mandatory to upgrade successfully (without no-validate at the end, the upgrade was failling with this errorYou can use this procedure to upgrade Junos OS on device with a single Routing Engine. Description. 0 or later. On this platform, only "request vmhost software" is supported, as with every NG-RE platform. request vmhost power-off ; request vmhost halt ; request vmhost reboot ; request system reboot ; The reboot operation is treated as connection close requested to TCP. I have downloaded the software from the Juniper website (juno Log in to ask questions, share your expertise, or stay connected to content you value. People also viewed. user@EX9251-A> request vmhost software add /var/tmp/<junos-os-filename> To redirect the traffic from EX9251-B to EX9251-A, re-enable the server-facing & uplink interface on. tgz. This sample code audits all changes to the configuration secret data and sends the logs to a file named Audit-File: content_copy zoom_out_map. Starting with Junos OS Release 15. Do not use the scp protocol in the request vmhost software add command to download and install a software package or bundle from a remote location. 1R6-S3. tgz no-validate reboot. request vmhost storage. x is the underlying OS for all Junos OS platforms. Starting in Junos OS 17. 1R1. Add the VM host image again and reboot the device to clear the alarm. Starting in Junos OS release 21. 4. Let us know what you think. Upgrading or downgrading Junos OS might take several minutes, depending on the size and configuration of the network. Install or upgrade the Junos OS and host software packages on the device. Migration, Upgrade, and Downgrade Instructions. Expert Help. Read the End User License Agreement, click the I agree radio button, and then click Proceed. The RE is booted with the boot image in set p . We now only use 64bits vmhost; Based on upgrade task and Juniper recommended; All the steps bellow should be done with: cumin1001:~$ sudo cookbook sre. Starting in Junos OS release 21. Users may encounter scenarios where the Junos VM is running a different version and the host VM is running an older version. Subscribe. utils. root> show version Model: mx204 Junos: 17. (Optional) Back up the current software configuration to a second storage option. In the case of USB upgrade please be mindful of the fact that all config and. Click the Software tab. version) Adding the reboot command reboots the switch after the upgrade is installed. Let us know what you think. tgz reboot RE0# commit synchronize and-quit re0: configuration check succeeds re1: commit complete re0: commit complete Exiting configuration mode. If you have important files in directories other than /config and /var, copy the files to a secure location before upgrading the device. 17. scp://hostname/pathname (available only for Canada and U. In this case, we need to bring both REs onto the same Junos OS release, copy the Junos OS installation file that is available on one RE, and then take it to the other RE by using a USB device. tgz <router-fqdn> Make room for the image request system storage cleanup; If multi-RE, cleanup files on backup RE: request system storage. On the Next Generation Routing Engine (NG-RE) for MX/PTX, there are some cases where the VMHost software downgrade fails on certain RE types that support Secure BIOS. On these routers, in order to install both Junos software and host software packages, use the request vmhost software add command. When the reboot is complete, the switch displays the login prompt. Using "request system software" on MX204 can make the device unpredictable, as it just upgrades the JunOS VM, not the host. install_os execution function and the salt. xRx-Sx But the last step (3step) no-validate was mandatory to upgrade successfully (without no-validate at the end, the upgrade was failling with this error You can upgrade the disk partitions on NFX250 NextGen and NFX350 devices by using: To perform the Junos OS upgrade on devices managed by security director cloud, go to. 10 signed by PackageDevelopmentECP256_2022 method ECDSA256+SHA256 i40e NVM version is f4. 168. Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. This port is by default configured with a virtual interface called fxp0 which by default has the static IPv4 address 192. 2R1 23 Jun 2023 gz (3354. For further configuration of the device it is suitable to set up the fxp0 interface to give access. 4R1. The presence of the appropriate software license key on your device determines whether you are eligible to configure and use the licensed feature. x based Junos OS. Run the command, 'request vmhost software add. Junos Software service Release version 21. tgz re0 no-validate" This upgrade installs the host image along with the compatible Junos OS. Category: VMHOST platforms software; 1605971: VM host platforms might boot exactly 30 minutes after executing 'request vmhost halt' command Product-Group=junos: On all VM host platforms running Junos OS Release 19. Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. utils. This will fetch the Junos OS software package from the PC with IP:10. You. Stage an Image. 5 or 20. The alarm was. Error: not enough space to unpack /var/home/labroot/junos-install-mx-x86-64-20. Introduction to Next Generation Routing Engine (NG-RE): NG-RE is a new RE model sharing common infrastructure for multiple platforms such as MX and PTX. Hello Community, Planning to upgrade two 204 MX routers (each with single RE) from 18. 10. 2021-02-26 07:17:38,702 | [INFO][junos_ops. From the Version drop-down menu, select your version. junos-vmhost-install-ms-x86-64-19. Juniper Security Director Cloud User Guide. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the MX Series. Options in service upgrade Abort unified ISSU Required Privilege Level from CS 101 at Faculty of Chemical and Food Technology STUrequest system software abort. Reboot the device. 10 signed by PackageDevelopmentECP256_2022 method ECDSA256+SHA256 i40e NVM version is f4. Get-VMHost Supported Version [-CimSession] <CimSession[]> [-Default] [<CommonParameters>] Description. request vmhost software add PTX10008およびPTX10016ルーターの コマンドの request system software add 代わりに、 コマンドを使用して、ルーターにJunos OSソフトウェアパッケージまたはバンドルをインストールまたはアップグレードします。. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. junos-vmhost-install-mx-x86-64-17. Roll back the Junos OS and the host OS software packages to the previous versions. tgz re0 no-validate" This upgrade installs the host image along with the. 9 to 19. > request vmhost software add /var/tmp/xxxx > request vmhost reboot. Default is /var/tmp. IT. Upload the jfirmware-vmhost package from the corresponding JUNOS release to the /var/tmp/ directory of the system and install that to the primary Routing Engine of the system. For upgrading the host OS on these routers with VM Host support, use the junos-vmhost-install-x. Add-VMHost Add-VMHostNtpServer Export-VMHostImageDb Export-VMHostProfile. 4R3. Only the servers running Red Hat® Enterprise Linux® (RHEL) 9 or later versions support podman. Rebooting occurs only if the upgrade is successful. Created2016-04-03. If the router fails to reboot or is not accessible, follow these steps: Power cycle the chassis or remove the RCB (JNP10K-RE1) and plug it back in. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS. scp://hostname/pathname (available only for Canada and U. 3R3-S8. Only oder devices like MX80/MX104 support the "request system software" command. Reboot the Junos OS software and the host OS from the specified disk and the partition within the disk. VI Trusted Certificate. This sample code audits all changes to the configuration secret data and sends the logs to a file named Common Criteriaauditing configuration changesexampleslogging configuration changesAudit-File:This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS. And they use the request system software add command with the non-vmhost image to upgrade instead of using the request vmhost software add command with a vmhost image on an MX device with a Next Generation Routing Engine (NG-RE). 4R2. You can then either manually remove specific files or just remove 'dry-run' from the command to delete all files listed via the previous command. Press the ESC button to go to the Boot Manager Menu. It prompts you to confirm and then formats the external SSD so that you can use it for NFX350 device. Solution. Downloading Software Using the Command-Line Interface (Junos OS) 110. The upgrade applies to one partition of the SSD (primary). Note. 9. Upgrading or downgrading Junos OS might take several hours, depending on the size and configuration of the network. We recommend that you retain the configuration unless you are deploying a new vSRX VM. 2X75-D435. cr3-ulsfo> request vmhost snapshot warning: Existing data on the target may be lost Proceed ? [yes,no] (no) yes warning: Proceeding with vmhost snapshot Current root details, Device sda, Label: jrootp_P, Partition: sda3 Snapshot admin context from current boot disk to target disk. To boot from the desired disk, execute ' request vmhost reboot { disk1, disk2}' command. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS. Copy the image to /var/tmp/ on the switch. 1R1, the NFX150 Network Services Platform is available as a single platform tA Juniper Networks device is delivered with Junos OS preinstalled. List of Sample Output. 10. * Add the `force_host` argument to `junos_install_os`. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the MX Series. 11. If the Install Package resides remotely from the device,. Do you have time for a two-minute survey?This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS. The command removes all data files, including customized configuration and log files, by unlinking the files from their directories. User Interface and Configuration. Click Browse to navigate to the software package location and select junos-srxsme-10. Run the VMHost upgrade command as follows: > request vmhost software add /var/tmp/junos-vmhost-install-ex92xx-x86-64-17. Product and Release Support arrow_backward arrow_forward With the virtualization of the Routing Engine, Junos OS supports new request and show commands associated with. Power off the Routing Engine on which Junos OS and the host OS are running. From the Type/OS drop-down menu, select Junos SR. junos. This step is optional because Junos OS can also be upgraded when the software image is stored at. If you have important files in directories other than /config and /var, copy the files to a secure location before upgrading the device. in Number of minutes to delay before reboot operation. Solution. 11 and got a little confused about below: from Juniper docHelp us improve your experience. user@mx-re0> show vmhost version Starting in Junos OS Release 21. The loading process can take 5 to 10 minutes. Basic Procedure for Upgrading to Release 22. Upgrading or downgrading Junos OS might take several hours, depending on the size and configuration of the network. The following output will be seen when attempting to upgrade: root@ex9200-re0> request vmhost software add /var/tmp/junos-vmhost-install-ex92xx-x86-64-21. 4R1 or later using the standard Junos OS upgrade process, the i40e NVM firmware upgrade is done automatically during the upgrade process. 11. In this example, RE0 is the primary running release 16. ' directly from RE1, the routing-engine which is to be upgraded. Then you can install the image by performing "request vmhost software add /var/tmp/junos-vmhost-install-mx-x86-64-18. The loading process can take 5 to 10 minutes. For installing the host software as well as Junos OS, specify the package name junos-vmhost-install-x. When upgrading or downgrading Junos OS, always use the jinstall package. Upgrading or downgrading Junos OS can take several hours, depending on the size and configuration of the network. From the Type/OS drop-down menu, select Junos SR. This section contains the procedure to upgrade Junos OS, and the upgrade and downgrade policies for Junos OS for the PTX Series. tgz no-validate Verified junos-vmhost-install-ex92xx. Select the Install Package as need and follow the prompts. Rebooting occurs only if the upgrade is successful. To install software upgrades on a router with a single Routing Engine: Download the software package as described in.