Does your NAS connect @1GBit with other Switches or so, you may have lying around?
Looks like a defective NIC for me
I have borrowed a router from a friend and is the same thing.
Other devices negociate at 1Gps, my small OMV only at 100.
Changed also cables but no luck 
root@NAS:~# mii-tool -v enp2s0
enp2s0: negotiated 100baseTx-FD, link ok
product info: vendor 00:50:ef, model 58 rev 4
basic mode: autonegotiation enabled
basic status: autonegotiation complete, link ok
capabilities: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
advertising: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control
link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
root@NAS:~#
Even with Proxmox kernel nothing changed. Still 2.9 GB, as you can see here http://sirneo.go.ro:1002/sysinfo/index.php?disp=bootstrap
| Kernel Version | 5.4.44-2-pve (SMP) x86_64 |
|---|
Funny fact is that Portainer sees available 3.1 GB
| Endpoint | local 2 3.1 GB - Standalone 19.03.12 |
Also i have found on Microsoft forum an explination to the same issue (4g installed only 3 available for Windows)
Even though you have a
4GB address space, you can only use around 3.1GB of RAM. That'sbecause some of that space is used by hardware and is not available to the operating system and applications. The amount you can use varies, depending on what hardware you have installed, but can range from as little as 2GB to as much as 3.5GB. It's usually around 3.1GB.
So i think is nothing i can do here
So anybody any idea?
After i will enable the Proxmox kernel hopefully i will see 4gb
This is wrong. on the 100mb on the router
Since
https://sourceforge.net/projec…ngle%20Board%20Computers/ says The pre-install images have been deprecated in favor of using this guide - https://forum.openmediavault.o…-Armbian-Supported-SBC-s/ i am curious how to install OMV 4 and not 5 to Raspberry Pi4.
Why I want 4 and not 5? Because of docker menu. Please see screenshots how is docker displayed TechnoDadLife and how is at my box and i think it's because Techno dad tutorials are on OMV4 and i have installed OMV5.
Also since i suck to Docker i think on OMV4 are more plugins than OMV5.
Using the same Cat6 cable and same port of the HG8245H router but connected with Deskptop not with NAS i obtain 1Gbps. 
I have an 1Gbps connection but the NAS is negotiating with the router on 100Mbps.
root@NAS:~#lspci
02:00.0 Ethernet controller: Broadcom Limited NetXtreme BCM5764M Gigabit Ethernet PCIe (rev 10)
root@NAS:~# ip link show
enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
link/ether 00:26:2d:29:3e:16 brd ff:ff:ff:ff:ff:ff
I have tried ethtool -s enp2s0 speed 1000 duplex full and the connection went Down so i needed to reboot the machine
Hello,
I want not to waste my time in pandemic so i started to bring life to old projects of mine.
Some time ago (more than 2 years) i wanted to build a NAS out of an Intel Atom 230 but OMV saw only 3gb of RAM instead of 4gb and i didn't want to invest time to solve that issue.
Today same when i have installed OMV i have observed the same thing.
Please see the screenshots below from OMV, Linux mint and BIOS. I don't understand why only 3 and not 4. Even if i would use a 32 bit system i should see 4gb right? (~4 if we take in consideration the 64mb videocard)
root@NAS:~# uname -a
Linux NAS 5.6.0-0.bpo.2-amd64 #1 SMP Debian 5.6.14-2~bpo10+1 (2020-06-09) x86_64
