I was working on a Cisco 3850 24 port switch today and I read that it doesn't use the normal 'boot system flash:XYZ.bin' but instead it's something like this:'software install file flash:XYZ.bin new'That changes the install package or something which makes it boot in the newly selected package which contains the new IOS. Anyway, when i put in that command I get something about 'Failed to.' Or something. I'm sorry but I'm at home now and I don't have the device with me and it just occured to me to post this on the forum for possible help. Either way, it's specifically says 'Failed.' As the first word which is not what it should normally say.I used these directions:I am in Install mode.
Can anyone help me figure out why this is happening before my outage window on Sunday night? I've downloaded the new version of the IOS from Cisco.com and verified it is currently located in the flash of this device.Thanks for any help you can provide! Hi everyone,If you faced this problem, the best solution is upgrading the switch using a USB Flash.You can download the last vesrion or new one, copy to flash memory and then upgrade the switch.If the booting of switch is not successful you go to rommon after 5 booting failure with this prompt:Switch:Now you can attach your USB Flash to the switch an do this:switch: boot usbflash0:XXXX.binWhich xxxx.bin is the IOS-XE that you copied this to flash memory.Then your switch should boot with this image. After booting the switch you have this prompt:SwitchenableSwitch#now you must copy this image to flash of switch:Switch#copy usbflash0:XXXX.bin flashNow the boot options must be checked:Switch#show run inc bootIf you don't see 'boot system switch all flash:XXXX.bin' under 'show run inc boot', you should enter this in config mode.After reload the switch must be booted with this version.Kind regards,Morteza.
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Prometheus Global Media. Swos 17 18. Retrieved August 20, 2015. Hope, Clover (November 2, 2006).
Hi,I have same problem as well in 3850 switch. Joshua, Plesae find quick guide on upgrading and booting, see below as a reference.Recovering from a 3850 boot failure.There are multiple reasons a 3850 may fail to boot correctly including a corrupt boot image, a corrupt packages.conf file, missing files, etc. Below are a few different possible recovery methods to try.
Install Bin File
I will also explain the two possible mode options, Install and bundle and why you might want to use one or the other.Install vs. Bundle ModeThere are a few difference in the two modes, I would recommend reading over the config guide for more in-depth details. The recommended mode during operation is INSTALL mode because it allows for more features and requires fewer resources when booting.Install ModeThis is the out-of-the-box mode that your switch will be in.
INSTALL mode uses a package provisioning file named packages.conf to boot the switch.If you happen to be in bundle mode upon boot, you can simply boot your switch in install mode by booting the software package provisioning file that resides in flash. If packages.conf doesnt exist in flash, you need to expand the bundle into the flash file system by runningSwitch# software expand file flash: cat3kcaa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin to flash:Once this completes, you will have all the needed files in flash. You can then change the boot statement to boot to packages.confSwitch#Config tSwitch(config)# no boot systemSwitch(config): boot system switch all flash:packages.conf (do not modify this file, unless necessary)Switch#write memoryThe provisioning file contains a list of software packages to boot, mount, and run. The ISO file system in each installed package is mounted to the root file system directly from flash.NOTE.Auto-upgrade is disabled, by default. (once in install mode - execute the following command in global config: software auto-upgrade enable )NOTE.Auto-upgrade includes an auto-copy process and an auto-extract process.Bundle ModeAs noted previously, bundle mode consumes more memory than booting in install mode because the packages are extracted from the bundle and copied to the RAM. If you decide to convert to bundle mode, you will first need to download the.bin file from CCO if you dont already have it in flash.
Once in flash, you can simply change your boot statement to point to the (.bin) file:Switch#Config tSwitch(config)# no boot systemSwitch(config): boot system switch all flash: cat3kcaa-universalk9.SPA.03.02.02.SE.150-1.EX2.binSwitch#write memoryThe provisioning file contained in a bundle is used to decide which packages to boot, mount, and run. Packages are extracted from the bundle and copied to RAM.NOTE.Auto install and smart install functionality is not supported in bundle boot mode.Recovery MethodsUSBThe 3850 has a USB port on the front that can be used for both console access and also the ability to utilize a flash drive for image backup and recovery.If you happen to be stuck at the switch: prompt with a corrupt image or.conf file, you can easily boot to a file stored on the USB drive.1.
Verify that the flashdrive is recognized and the.bin file existsswitch: dir usbflash0:Directory of usbflash0:/74 -rw- 223734376 cat3kcaa-universalk9.SPA.03.02.02.SE.150-1.EX2.bin2. Boot to the USB imageswitch: boot usbflash0:cat3kcaa-universalk9.SPA.03.02.02.SE.150-1.EX2.binCorrupt packages.confIve seen instances in which packages.conf continually calls files that no longer exist in flash. You can boot to an image from ROMMON just fine, however upon reload it will call packages.conf again and fail to boot.
If this happens, I recommend backing up the existing packages.conf file by renaming it or deleting all together. NOTE: The previous step is mandatory as the next step will fail if a.conf file already exists.
You can then run an BUNDLE extract which will create a new packages.conf file.1. Once booted up (in BUNDLE mode) verify the files in flashSwitch#dir flash:Directory of flash:/15500 -rwx 1243 Aug 1 2013 07:04:02 +00:00 packages.conf2.
Copy or rename the existing packages.conf fileSwitch#cp flash:packages.conf flash:packages.conf.badop flash:packages.conf flash:packages.conf.badDestination filename packages.conf.bad?Copy in progress.C1243 bytes copied in 0.140 secs (8879 bytes/sec)Switch#dir flash:Directory of flash:/15500 -rwx 1243 Aug 1 2013 07:04:02 +00:00 packages.conf15502 -rw- 1243 Aug 1 2013 11:53:51 +00:00 packages.conf.bad3. Delete packages.confSwitch#del flash:packages.confDelete filename packages.conf?Delete flash:/packages.conf? Expand BUNDLE to create new packages.confSwitch#software expand running switch 1 to flash:Preparing expand operation.1: Expanding the running bundle1: Copying package files1: Package files copied1: Finished expanding the running bundle5. Verify bootSwitch#show boot-Switch 1-Current Boot Variables:BOOT variable does not existBoot Variables on next reload:BOOT variable = flash:packages.conf;Manual Boot = noEnable Break = no6. Reload Switchswitch#reloadReload command is being issued on Active unit, this will reload the whole stackProceed with reload?
confirmEmergency RecoveryIf all else fails, the 3850 has a trap door method of recovering the system. All you need is a terminal connected to the management port of the 3850 running a tftp server. Download a valid image file from CCO and store it in the root of the tftp server.On the switch, you are most likely stuck at the switch: prompt. If however you are in some sort of boot loop, you can use the mode button on the front of the switch to break the cycle. Simply hold the button for roughly 10 seconds and the switch should react by breaking the cycle and stopping at a switch: prompt. The following steps will walk you through the recovery:1. Set the switch IPswitch: set IPADDR 192.0.2.123/255.255.255.02.
Set the default gatewayswitch: set DEFAULTROUTER 192.0.2.13.Test connectivity by pinging terminal (that contains the tftp server)switch: ping 192.0.2.1ping 192.0.2.1 with 32 bytes of data.Host 192.0.2.1 is alive.4. Verify that the emergency files exist in the switches file systemswitch: dir sda9:Directory of sda9:/2 drwx 1024.2 drwx 1024.11 -rwx 18958824 cat3kcaa-recovery.bin36903936 bytes available (20866048 bytes used)5.