I have a very old mx104 that need upgrade from the 14.2R2.8 to the 17.3R3-S7 . License are installed to make active the 4 uplinks port of the router.
Upgrade path will be
14.2 from here to
16.1<<< to here
17.2<<< then here
17.3<<< finall reach target release
and after upgrade i am expecting to have 2 situations:
1) license not working -> i will install back
2)License is working
Before performing the upgrade i want to take snapshot to use it in case of problem during the upgrade. Snapshot will recover configuration and the sw release installed at the time of the command request system snapshot was issued.
Question number 1: do you agree with my sw upgrade path?
Question number 2: do you see any problem between license and sw release installed? I think the 2 conecpt are not tied togheter
user@mx104> show system snapshot
error: da1 media missing or invalid
More, if i want to take the snapshot of the current sw+config i understood that i need to install one usb pen drive on port 0 for example (USB0) and run the command
user@mx104> request system snapshot media ?
usb0 Write snapshot to device connected to USB0 port
usb1 Write snapshot to device connected to USB1 port
so snapshot wil be saved on USB0.
Now, in case of problem to bring the router back as it was before, is enough to simply insert the USB0 and the router will recover the snapshot during the boot sequence without having me doing anything basically. Is this "assumption" correct?
1) Is there a specific reason why you are considering to upgrade this in 3 stages? I believe you can achieve this in 2 steps as well. First to an intermediate version( major release) and then to the final version.
2) I have personally not seen issues here.
3) The error message is expected on lower-end MX platforms like Mx5 to MX-104 when we use ‘request system snapshot’ without specifying the storage location where there is no Compact Flash and SSD separation present.
So when it comes to the ‘request system snapshot’ command usage, it usually tries to apply for da1 which is hard disk/SSD for the high-end platforms which is resulting in this error message. On MX104 routers, you can back up your software installation on an external USB storage media device with knob ‘request system snapshot media usb01 or usb02’. Yes, you may ignore the da1 media missing error.
To back up files on an MX104 to a specified external storage media device:
Now, in case of problem to bring the router back as it was before, is enough to simply insert the USB0 where the snapshot is saved and the router will recover the snapshot during the boot sequence without having me doing anything basically. Is this "assumption" correct?