using routerboard 450g, i failed to boot after upgrading from routeros v4.0 to v4.1. how to fix this? 
netinstall?
i sent it back to the store i purchased here in surabaya, indonesia. they will reinstall the routerboard and finish it next monday. i currently don’t have serial console cable (female to female jack), that’s why i could not do netinstall.
the board could boot with one beep, but when the two beeps occurred, all the lan leds kept blinking without entering the operating system. 3 rb450 and 1 rb750 upgraded just fine, only this rb450g didn’t success. i guess i have to wait for v4.x to be more matured. sigh
IMHO Every Mikrotik professional should own a serial cable and learn how to use netinstall.
It is not that difficult, and will save you time in the future.
Tom
yeah i guess so. i’m an average mikrotik guy. will purchase the serial cable next monday though and try it out for first time.
i hope mikrotik will use usb or something else which is wide available in most current motherboard. lots of new motherboard dropping their serial port on the rear panel.
http://www.mikrotik.com/download/netinstall-4.0.zip
use this netinstall (NOT 4.1!!!) and downgrade router os to version 4.0.
In Version 4.1 the Ethernet Ports are not working on RB450G!!
I spent today 3 hours to find a way to fix this.
dahuafschmied
voila! finally somebody has found the issue. i wonder did they ever tested new version released to their all routerboard before releasing as stable version on the net?? sigh i guess i have to go back to v3.30 which is more stable at the moment.
If they even have any RouterBoards. I’m seen a lot of developers program on PCs, cross-compile for a different architecture, then release the product without testing.
have you upgraded RB’s firmware?..
How to update firmware before ROS?
The same problem here. I updated RB450G from ROS 3.30 to 4.1 in steps:
-
Update licence.
-
Check update routerboard firmware, it was on 2.20. After ROS upgrade is 2.23. Where I get new firmware BEFORE update ROS?
-
Update to ROS 4.1 (uploading nkp file and reboot).
After that, ethernet ports are gone with all leds blinking. I was able to connect and logon using serial null-modem cable. Everything was ok, empty logs, all packages on 4.1, /interface print correct shows running ethernet ports (with cable on it).
Solution is downgrade to ROS4.0 using netinstall 4.0. Thanks dahuafschmied.
Sorry for my english.
so, after upgrading to 4.1, have you upgraded the firmware to 2.23?.. =) just for test…
fw 2.20 or fw 2.23 changes nothing.
2.20 & 4.0 → ok
2.23 & 4.0 → ok
2.20 & 4.1 → not ok
2.30 & 4.1 → not ok
2.20 & netinstall 4.1 → ethernet dead after PXE boot (update not possible)
2.30 & netinstall 4.1 → ethernet dead after PXE boot (update not possible)
2.20 & netinstall 4.0 → ethernet ok (update possible)
2.23 & netinstall 4.0 → ethernet ok (update possible)
after upgraded to v4.0 i didn’t see any firmware update from /system routerboard pr. the system showed 2.23 as i recall.
All 5 ports went bananas on you ?
I happily upgraded one of mine RB450Gs to each version including the Betas the last few months. Each one of them worked good enough for the device(s) to do its job just fine.
Each time I uploaded separate packages of just what I needed - maybe this saved me.
Once when I uploaded bad npks the upgrade process went bad but I could still connect on one of the eth ports with WinBox so I could put in fresh npks that fixed it - without null-modem cable (which I currently don’t have anywhere near me, nor a RS232<->USB adapter).
So relax and upload only needed npks that you know for sure are downloaded 100% and not some incomplete download or something. And even if u have bad luck - this is the current state of electronics worldwide - sometimes sh*t happens - and MikroTik for me have done a beautiful job the past … year or more. And MT has this great forum + support e-mail + warranty and support by the distributors.
Good luck to all.