Hit [Enter] to boot immediately, or space bar for command prompt Press Space to get to the Loader> -prompt Load and install the JunOS operating system using USB Connect the USB stick Boot the device and access the boot-loader like described above. Can you please check the contents of following directory - ERROR: ABORTING BOOT (sending SIGTERM to parent)! 2) If this is a Sandisk flash drive, make sure that it is not a U3-enabled flash drive. A USB flash drive that meets the switch USB port specifications. In the meantime I upgraded the SW to an actual level (18.3R1.9) but this didn't help. Contents. request system snapshot recovery - Juniper Networks I have the same problem with ex 4200 , Could you solve this problem ? Connect a terminal to the EX switch console port and power on the switch. contains both the primary and backup partitions. In this case, that's not the one you want. Method 1 Using a USB Device . If you deal with a lot of juniper gear, you'll save a lot of time and headaches by setting a FTP server file:///jinstall-ex-3200-10.0S1.1-domestic-signed.tgz. Learn how to become a member. Step 3. Set the EX Switch management IP address and netmask: Issue the install command with the format option to install the Junos image via TFTP: To perform this recovery installation, the USB Drive should be formatted to FAT-32 & should be empty. PEM chassis alarms Juniper EX/QFX, Juniper DACBO (direct-attach copper breakout cables), KB20464 Stage 4 Troubleshoot Upgrade Failure/Crash, KB17435 USB device compatibility / Specifications for EX Series Switch. If the primary EFI partition is corrupted, the system will switch usb (MX960 routers only) Copy software to the device connected to the USB port. I had this problem and couldn't find a solution anywhere, no matter what I did, there was never enough space to do a recovery snapshot. Mini-USB Port Pinout Specifications | 153 USB Port Specifications for an EX Series Switch | 154 RJ-45 Management Port Connector Pinout Information | 154 EX4300 RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout Information | 155 RJ-45 to DB-9 Serial Port Adapter Pinout Information | 163. rhellwig@boejuniper6> show system snapshot, Snapshot snap.20190104.101954:Location: /packages/sets/snap.20190104.101954Creation date: Jan 4 10:19:54 2019Junos version: 18.3R1.9, {master}rhellwig@boejuniper6> request system storage cleanup, Size Date Name 11B Jan 4 13:41 /var/jail/tmp/alarmd.ts. 0B Jan 4 10:18 /var/tmp/rtsdb/if-rtsdbDelete these files ? I am facing this problem with 4 different RE-S-1800X4. At power-on, one of the first prompts you'll see is "Press ESC for boot options". When presented with the following U-Boot message press the space bar to enter the U-Boot loader Press SPACE to abort autoboot in 1 seconds 6. Boot up from the USB snapshot file. I tried it on both REs (on backup with good OAM, on master with bad OAM) without success (nothing happened): https://kb.juniper.net/InfoCenter/index?page=content&id=KB32176. /boot/kernel text=0xcf743c \. Boot from the internal disk and take a snapshot on the USB device. user@router> start shell user rootPassword: Create a temporary folder in the /var/tmp directory to use as mounting point for the OAM volume: root@router:/var/home/user # mkdir /var/tmp/oamroot@router:/var/home/user # mount /dev/gpt/oam /var/tmp/oam. Prepping to deploy two new EX4300-MPs in a VC. Put the USB flash drive in the EX switch. rhellwig@boejuniper6> show system snapshot telephony and 802.11n wireless access point deployments. PDF EX4300 Switch Hardware Guide - Juniper Networks Stopping timer for netdaemon(ada1:ata0:0:1:0): WRITE_DMA. Learn how to become a member. Juniper EX4300 USB console driver. The backup disk partition is used to recover the primary disk partition in the event that the primary partition gets corrupted. - pressing the command prompt will bring you to the loader menu. If you're quick enough (timeout is 2 seconds) you can select "Juniper-Linux-Recovery" to select an alternate image. As you can see in my posts above I had no working ethernet interfaces within the u-boot. Installation and Upgrade on EX2300, EX3400 | Manualzz JunOS : How to upgrade from USB stick | ITechLounge.net Review the complete USB compatibility specifications listed in USB Port Specifications for an EX Series Switch . Enter full pathname of shell or RETURN for /bin/sh: Reddit, Inc. 2023. I run in trouble while playing around - I don't know when and why, but sometimes I lost the /oam on RE0: Recovery Snapshots:mount: /dev/oam: No such file or directoryERROR: 'oam' package needs to be updated in order to use OAM functionality. Press the space bar to enter the manual loader. [EX] How to format install EX2300s and EX3400s via USB - Juniper Networks Hi Iliass020, Connect the USB stick to your Juniper device (you should have an output on the console after connecting the device letting you know the device name). Junos OS Software Installation and Upgrade Guide - Manuals+ If the primary partition gets corrupted, With initrd, a portion of the RAM is converted into the 1) Make sure the USB drive is inserted before attempting to reboot / power it up. Create a directory for the USB drive to mount to: Found out the command 'request system snapshot' is not valid. Hit [Enter] to boot immediately, or space bar for command prompt. Connect to the console of the Juniper device (9600,8,N,1). loader> set netmask=255.255.255.0, loader> install --format tftp:///, For example: All rights reserved. I am curious if Juniper provide some advices to repair you equipment ! What Happens to My Files If the System Detects a File System Corruption and Automatic Snapshot is Not Enabled? When deployed in a Virtual Chassis configuration, the EX4300 delivers the operational simplicity and higher logical scale that businesses demand. a notification will be logged in syslog. To create a snapshot on USB flash memory and use it to boot the switch: 1. Mark the solution as accepted if it works. When presented with the following U-Boot message press the space bar to enter the U-Boot loader. 2-insert the flash into thedevice at one of the USB ports, 3-Reboot thedevice , When junos is coming up , you will see the message : " HIt Space to to abort autoboot ", Hit space , you will be at loader mode , the prompt should be "loader>", 4-If the prompt is " > " , type ">boot" to make it "loader>", loader> install file:///jinstall-ex-3200-10.0S1.1-domestic-signed.tgz ( or depending on your version you put on the flash), Now the Jnos will be installed & come up normally again, ************** Click on the button saying " Accept as Solution" if My Post solved your problem**************, http://kb.juniper.net/InfoCenter/index?page=content&id=KB20643&actp=search&viewlocale=en_US&searchid=1307076738879#, try kb20643 link above - you can recover the flash from usb install ffile or a tft server. Solution To recover the root password for EX4300-48MP, take the following steps: Note: You must have console access to the switch. * Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project. For more information, please see our Recovery Using an Emergency Boot Device (Junos OS) Rescue and Recovery of Configuration File (Junos OS) Recovery of Junos OS How to Recover Junos OS with Upgraded FreeBSD Autorecovery of Configuration, Licenses, and Disk Information on SRX Series Devices play_arrow Installing, Upgrading, and Downgrading Software After you recover an EX4300 Series device by using a external USB snapshot file and boot from the USB device, it fails to create the snapshot file in the internal disk. The SRX I bought was no longer under support and I totally knew it was something with the environment options in this u-boot, which was preventing it to go to 'loader>' but nowhere could I find an example of the working set of options. Place the image on a USB flash drive, reboot the switch Hi, I have the same problem with ex 4200 , Could you solve this problem ? any thought please? So I tried on RE1 the "alternative delete procedure" with good results: Snapshot snap.20190709.075643:Location: /packages/sets/snap.20190709.075643Creation date: Jul 9 07:56:43 2019Junos version: 19.1R1.6, Recovery Snapshots:No recovery snapshots available on the OAM volume. This partition is available on the backup partition if the system Please see my previous post and share the requested output so we can try to determine which packages you can delete. Still stuck on this prompt. Jan 21 18:04:42 init: /bin/sh on /etc/rc terminated abnormally, going to single user mode. The U3 thing has bitten me multiple times. Trying to mount root from cd9660:/dev/md0.uzip [] uhub0: 2 ports with 2 removable, self powered, 10706 files, 1201805 used, 5068657 free (217 frags, 633555 blocks, 0.0% fragmentation), @ 1642788280 [2022-01-21 18:04:40] preboot, Verified os-kernel-prd-x86-64-20210618 signed by PackageProductionECP256_2021 method ECDSA256+SHA256, uhub1: 2 ports with 2 removable, self powered, Verified os-libs-11-x86-64-20210618 signed by PackageProductionECP256_2021 method ECDSA256+SHA256, Mounting os-libs-11-x86-64-20210618.f43645e_builder_stable_11-204ab, ugen1.2: at usbus1, uhub2: on usbus1, Verified os-runtime-x86-64-20210618 signed by PackageProductionECP256_2021 method ECDSA256+SHA256, Mounting os-runtime-x86-64-20210618.f43645e_builder_stable_11-204ab, uhub2: 6 ports with 6 removable, self powered, 38 files, 37 used, 126840 free (16 frags, 15853 blocks, 0.0% fragmentation), Can't stat /dev/ada1p1: No such file or directory. * Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project. Unfortunately not: You seem to be facing a different issue on the MX960. Would you like to mark this message as the new best answer? [EX] Performing and resolving any common issues during Format Install Maybe something changed? When I boot the device I just get dropped in the u-boot: I have found many posts referencing to this issue and this KB: http://kb.juniper.net/InfoCenter/index?page=content&id=KB14175. At the Loader> -prompt install the JunOS image with I managed to upgrade Do you remember how to load the loader_crc using serial line? Since the installation image of JunOS has at least 130 MB, be sure to use a server that can handle it. Format a flash drive using the FAT filesystem 2. I have almost the same issue like you have, this is in a MX960 with RE-S-1800X4 Routing Engine. YMMV. and temporary storage and is backed up completely. I'm not sure if you are still having this issue, but if not then just consider my post as documenting a possible solution for the next guy that has this issue and searches for it : ).

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