Catalyst C3850 Gibraltar-16.12.1 ED

[FratianiD]

Just making this post so no one else tries to run this software version on their 3850.

Do not attempt to run cat3k_caa-universalk9.16.12.01.SPA.bin on the 3850.

Mine is a C3850-12X48U-E.

I verified the SHA512 multiple times and even tried booting from a flash drive.

Currently SHA512 is: 5800720c79f217e150e50397006f199ceeb21e69721fd8a941b84c2675ec62666aa6a4b5aca58ed1079e470f6a3ceaa429e496279d409e47921aae8a90af48f2

Interface GE 0 link down***ERROR: PHY link is down

Getting rest of image
Reading full image into memory...Check base package header ...: done = 16384
Getting rest of image
Reading full image into memory....done
Reading full base package into memory...: done = 34200944
Bundle Image
--------------------------------------
Kernel Address    : 0x5342f3c0
Kernel Size       : 0x43824e/4424270
Initramfs Address : 0x5386760e
Initramfs Size    : 0x1c0cf62/29413218
Compression Format: mzip

Bootable image at @ ram:0x5342f3c0
Bootable image segment 0 address range [0x81100000, 0x81da5280] is in range [0x80180000, 0x90000000].
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@boot_system: 377
Loading Linux kernel with entry point 0x81894d40 ...
Bootloader: Done loading app on core_mask: 0x3f

### Launching Linux Kernel (flags = 0x5)

Linux version 4.9.177 (xelinux@sjc-xelinux1) (gcc version 5.3.0 (GCC) ) #1 SMP Fri Jun 7 18:13:03 PDT 2019
CVMSEG size: 2 cache lines (256 bytes)
Cavium Inc. SDK-5.1.0
bootconsole [early0] enabled
CPU0 revision is: 000d900a (Cavium Octeon II)
Checking for the multiply/shift bug... no.
Checking for the daddiu bug... no.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)

[balaji.bandi]

have you read the release notes.

More intrested to learn from what version you try to upgrade :

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/16-12/release_notes/ol-16-12-3850.html#id_67613

[FratianiD]

Yes, I always read the release notes for known issues and even noticed the installation command changed slightly, telling you to put "new" at the end of "req platform software package install sw all file...".

I was attempting an upgrade from Fuji-16.9.3a MD (cat3k_caa-universalk9.16.09.03a.SPA.bin).

I don't think that really matters much (unless older versions used an older ROMMON) because I even tried booting from a flash drive in ROMMON.

Also, if you google the actual error:

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0)  

 I believe this means the Kernel wasn't configured correctly.

[balaji.bandi]

Good to know you are in right direction, if this is not in production and you have not seen any outage.

try Gib 16.11.X and upgrade to 12.X

[FratianiD]

It was in production and caused some downtime but for me it's not a huge problem.

Just warning other people.

The only Gibraltar release I can see for the C3850 is this one: cat3k_caa-universalk9.16.12.01.SPA.bin

[balaji.bandi]

since its new release as value added for others and TAC benift raise TAC case so they make a note allow them to do test and realse fix for you.

NOTE ; iam going to do upgrade  same verison 11.X or 12.X on Cat 9500 and let you know outcome.

[FratianiD]

I don't have a support contract so all I can do is post here.