Old CCR router upgrade path

RouterOS General
1

Hi everyone

I have a new client which has an ancient ROS on his Mikrotik CCR1009

ROS
MikroTik RouterOS 6.27 (c) 1999-2015

Firmware
/system routerboard print
routerboard: yes
model: CCR1009-8G-1S-1S+
current-firmware: 3.22
upgrade-firmware: 3.22

Can someone recommend me the upgrade path?
Should I upgrade the firmware from 3.22 to 6.27 first?

What should be the next recommended ROS from 6.27 to upgrade to?

Thank you

2

Should I upgrade the firmware from 3.22 to 6.27 first?

yes, update this an reboot to apply this update

check for users, scheduler and scripts created by external malicious actors

i recommend this path:
make backup and export and store them in your PC
update to 6.40.9 (last version with old bridge (without vlan filtering))
update firmware to 6.40.9
make backup and export and store them in your PC
6.42.12 i think in this version conversion from old to new bridge work well)
check new bridge configurations
update firmware to 6.42.12
6.48.6
update firmware to 6.48.6

3

my CCR1009-8G-1S runs fine on 7.4 !

4

Hi chechito

I just managed to perform the upgrade

The upgrade path you suggested went smooth without any problems or errors

Thank you