Can't update from SFOS 19.0.1 MR-1-Build365

I've tried Safari, Chrome and also Firefox. Same behaviour with everyone

Sounds like you are using the wrong image, then. What's the exact filename your are using?

Hi Angelone 

Please post the output as guided by LuCar Toni from CLI and do # df -h 

Regards

none                    613.2M     11.8M    556.6M   2% /
none                      2.9G     28.0K      2.9G   0% /dev
none                      2.9G     45.8M      2.9G   2% /tmp
none                      2.9G     14.6M      2.9G   0% /dev/shm
/dev/boot               127.7M     34.2M     90.7M  27% /boot
/dev/mapper/mountconf
                        560.3M     54.7M    501.6M  10% /conf
/dev/content             11.8G    496.5M     11.3G   4% /content
/dev/var                  3.7G      3.0G    684.2M  82% /var

VI-19.0.2_MR-2.KVM-472.sig

So you are affected by this issue: community.sophos.com/.../504883

I didn't get the point. Is for that reason that I can't update to newer version? In the issue you linked I saw that an option to solve it is contact the Sophos support but I'm using an home license, I don't think the support can be used or am I wrong?

Yes. You see: Your firewall has only 684MB space free /var/. The Update will require the duplicate space due the fact we need to unzip the file. 
The issue is: your firewall needs to be fixed. 

Angelone said:

an option to solve it is contact the Sophos support but I'm using an home license,

Thanks Bharat J . In the Sophos License Portal the last available installer version for KVM is VI-19.0.1_MR-1.KVM-365.zip

Does it resolve the issue? I'm wondering if I can add a virtual disk to my Sophos VM and expande the /var filesystem in order to complete the firmare upgrade. I also noticed that the second hard drive seems to be not partitioned, does it caused by the issue?