JunOS Download

[prog1yeshiva]

I found that file publicly on Google. That's why I need to check if it's real. Signature may be present in archive, but that means someone could change signature too.

Doesn't the switch's OS verify it with Juniper's servers for the proper checksum and signature?

 

[daveb-ne]

Progress update, It was suggested that I try an older USB drive. Managed to dig out an old 4GB verbatim USB drive. I managed to get the Juniper EX3400 to see and start to boot from the connected drive with an image on it. Now I get start address is not aligned errors, is this device related or USB drive related or command related?

=> usbboot dev 1

Loading from usb device 1, partition 1: Name: usbdb1 Type: U-Boot
ERROR: v7_dcache_inval_range - start address is not aligned - 0x000000de
ERROR: v7_outer_cache_inval_range - start address is not aligned - 0x000000de
data abort
pc : [<dff49ffc>] lr : [<dff4f864>]
reloc pc : [<1e041ffc>] lr : [<1e047864>]
sp : dfeb5ae4 ip : 00000000 fp : 1e000020
r10: 1e0820b6 r9 : dfeb7f00 r8 : 00000000
r7 : 00000000 r6 : dff3aa64 r5 : dff90bf8 r4 : dff7e600
r3 : 00000001 r2 : 0000ffff r1 : 000000de r0 : 000000de
Flags: nZCv IRQs off FIQs off Mode SVC_32
Resetting CPU ...

resetting ...

Argh, AI states:

junos-install-media-usb-ex-arm-32-23.4R2-S5.8.img	NO	ARM64	“Unknown image type”
junos-install-media-usb-ex-3400-arm-.img	YES	ARM32	Boots and installs

junos-install-media-usb-ex-arm-32-23.4R2-S5.8.img

is for EX4100/EX4300MP and ACX/QFX ARM platforms, not EX3400.

I have the wrong image...

UPDATE: IMAGE FLASH SUCCESSFUL!

This applies specifically to when you can only reach the => prompt and not the loader> prompt, may work even if you can reach the loader> prompt but still cannot get the firmware to load.

notes:
- Co-Pilot, took me down the garden path and suggested using TFTP, I could connect to the switch and start to load the image. But the connection always reset at 29%, ~100MB transferred
-Gemini, suggested that env boot variables were incorrect for the recovery process I was trying to use, oh?
-Original firmware on the boot-looping switch: JUNOS 20.4R3-S2.6 Kernel 32-bit

required:
-latest USB image from Juniper, I used: junos-install-media-usb-ex-arm-32-25.2R1-S2.3.img
-Write image to an older USB drive (Both an old 4GB verbatim and an even older SanDisk Cruzer 512MB, worked), I used Rufus 4.6p to write the image.

Ctrl + C during boot loop to reach =>
[connect your USB device with the written image to the Juniper Switch]
usb start >to enable the USB host driver
usb info >to find your USB disk number
setenv loaderdev disk1 >to change the default device
saveenv >save the change
reset >causes the switch to reboot

In my case - sit back and watch your switch rise from being bricked.

Watch for rebooting message on the console, as you need to undo the change to the loaderdev env variable
Ctrl + C during boot to reach =>
setenv loaderdev >by leaving it blank, restores default boot scan behavior
saveenv >save the change
[disconnect your USB device from the Juniper Switch]
reset >causes the switch to reboot

Watch the switch complete final installation, including create key pairs, apply patches that may be part of the image and create a recovery image.
If there were patches... my image had patches, the switch will boot again.

After the final reboot, I was able to login as root with no password and proceed with configuration.

 

[daveb-ne]

Doesn't the switch's OS verify it with Juniper's servers for the proper checksum and signature?

If the switch is connected to the internet and phone home has not been disabled and the user has not used the force switch.

 

[daveb-ne]

Hello all
I just bought an EX2300-48P (non‑MP) for my homelab. It currently runs 22.2R3-S3.18, but I suspect the firmware is buggy. The fxpc process is showing unusually high cpu usage (around 40–50%).
Can anyone help me get a more recent release? The recommended train appears to be 23.4R2‑Sx, so the latest recommended build would be 23.4R2‑S7.

EDIT: I just used Juniper Mist and was able to upgrade the firmware for free

You likely have a Mist license and a JTAC support license for another device connected to your Mist console. Why? 1) As soon as you have even 1 JTAC support license Juniper gives you access to all firmware and software file downloads. 2) A Mist license is required to do anything more complicated than add a device to Mist.

Comment: I like the potential usefulness of Mist and the graphs... I don't like that it is yet another license, companies already pay through the nose for this hardware. Basic support should be included (ie: Install / Setup / Configuration). The ability to connect a device to Mist in a useful manner should also be included.

FYI: As has been discovered by other users on this forum, don't disseminate these files to other users unless you want to be banned from your Juniper account. Rumour has it, it's hard to get unbanned.

 

[roberth58]

Can anyone help with the telegram juniper password generator? I have it installed and also installed persiantools 5.5. When i run password.py I get "Usage: python %s <YYYY>-<MM-<DD> C:\JUNIPER\password.py" Now what?

 

[Luminolix]

anyone can help with firmware or right procedure to upgrade Ex2300-48p with first release firmware ,just bought 2nd hand and have nightmare with Juniper support for account , if i know that first ...

 

[cyberjock]

The EX2200-C firmware links in this thread are expired. Here's a good place for the links for firmware for the switch:

SnapZFS - Enterprise-Grade ZFS Solutions

Specializing in TrueNAS/FreeNAS, FreeBSD, Linux ZFS, Proxmox HA, OPNsense HA, Nextcloud, and Cisco solutions. Expert troubleshooting, upgrades, and new infrastructure buildouts.

files.snapzfs.com

 

[Kehvarl]

I have a Juniper SRX4100 and I'm looking for a more recent Junos for it. I would like it to match the other one I play with (21.2R3-S3.5), or the most recent supported version: 23.4R2.S5. I did find the junos-srxsme-23.4r2-s5.5.tgz, but when I try to add it to my SRX4100 I get an " ERROR: /usr/libexec/ui/downgrade: a legacy Junos installation package is required... " I've been told that I need a jinstall file to properly upgrade this device, but checking some of the usual places online doesn't turn up anything I can use.

 

[Kehvarl]

I have a Juniper SRX4100 and I'm looking for a more recent Junos for it. I would like it to match the other one I play with (21.2R3-S3.5), or the most recent supported version: 23.4R2.S5. I did find the junos-srxsme-23.4r2-s5.5.tgz, but when I try to add it to my SRX4100 I get an " ERROR: /usr/libexec/ui/downgrade: a legacy Junos installation package is required... " I've been told that I need a jinstall file to properly upgrade this device, but checking some of the usual places online doesn't turn up anything I can use.

I managed to track down an .img of junos-install-media-usb-srxentedge-x86-64-23.4R2-S5.5. And once I switched my SRX4100 from Legacy to Dual boot mode, I was able to boot it from USB. Unfortunately, it wasn't able to install, because I think I need the srxsme image, not the srxextendedge image. I got this error:

Installation on
Install device is
blockdev: cannot open disk_size_Mbytes: No such file or directory
/usr/sbin/platform_functions: line 552: =0: command not found
Bug in initramfs /init detected. Dropping to a shell. Good luck!

So I can't apply an update using one of the .tgz files because I get an error about a missing legacy/downgrade Junos package. And I can't install from a Junos-install image because I can't find one that works on an SRX4100

Any recommendations on next steps?

 

[Kehvarl]

In case anyone else runs into upgrade issues on their SRX4100, the problem was: You can't use the srxsme files. You need an srxmr tgz. I managed to track one down for 23.1R1.8, and was able to apply it to get both SRXs I play with onto equivalent versions.

 

[daveb-ne]

Some tips on searching for firmware for an EX3400; search for a file in the form of junos-install-media-net-ex-arm-32 the version would be tacked on at the end after a dash, prefer releases (R) with a special edition (S) as the S denotes that the release has been patched, file size of about 330MB, you can compare downloaded files with known hashes from Juniper without a license. Have a great day!

 

[Agrikk]

Does anyone know wher I can find the latest firmware for a EX2300-48T switch?

I just purchased a Juniper EX3200-48T off of eBay and I'm trying to find the latest firmware for it. This switch has 18.1R3.3 installed and it looks like 25.2R2-S1 is the latest version. I've signed up for a support account, but I'm guessing that the latest firmware will be behind a paywall and this is a EOL switch. Can anyone point me to a link?

 

[luminoli]

i had stuck without firmware to my Juniper from eBay almost year , the solution was so funny and easy , just install Mist and upgrade through their (enable the beta) let it go , save config go make some coffee , do one reboot and that it , no any middleware versions no nothing , i did to mine 23.4R2-S7.4 after it was on first release 20.1, good luck

 

[setthecool]

i had stuck without firmware to my Juniper from eBay almost year , the solution was so funny and easy , just install Mist and upgrade through their (enable the beta) let it go , save config go make some coffee , do one reboot and that it , no any middleware versions no nothing , i did to mine 23.4R2-S7.4 after it was on first release 20.1, good luck

if you dont mind. what is mist and where can I find it

 

[juno_juno]

Could anyone help with EX2300 Firmware?