Hello everyone and dear SimpleMining Admin first!
I'm a faithful user of SM_OS, but I have few issuies with nvOS that worry me
very much. Please, comment if you know:
1. I use HDDs and USB-flash on my rigs. It seems to be that Linux stops hard drive rudely on switching computer off.
I feel it by fingers on 5 different HDDs & can find indirect evidences on USB-Flash too.
Sometimes soft powering down rig (press PWR button shortly) and then switching it on after a few seconds brings me one of the following:
a) OS boots OK, but then it cannot connect to the server. Rig is not seen on dashboard (red). Only rewriting the image to HDD or USB-Flash can help. Often issue after some update. Never appeared before week or two ago. Please, refer to Photo1.
b) OS boot process fails with "kernel panic" (was a few times only, later too). Hard power down + wait 5-10s + power on -> rig starts fine and works.
c) HDD slows down writing speed from 50Mb/s to 3Mb/s [HDDRawCopy]. One HDD behaved so, then after a few issues on "a)" it ceased to be found by bios at all. Today second HDD slowed down it's writing speed right to 3Mb/s and I'm afraid of it's future. I'm not sure, drives are not new. But every drive worked well and were tested in Victoria HDD program before being installed into rig.
d) Flash drive showed as Photo2. Rewriting the image helped. Appeared a few times before.
2. One of rigs became to show me Photo3 on booting up. There was no message about "Ctrl+D" before on any of my 7 rigs. Rewriting of the nvOS image to the HDD drive hadn't helped.
P.S.: update for
a): The only thing that I changed in my hardware during last 2 weks was adding Cisca router to LAN network. It looked as provider_cable + TP-Link WiFi+LAN router with DHCP + 16-channel LAN switch before. Now Cisca Wifi+LAN router added as a simple LAN switch.
I had a problem with my Windows notebook: after some power off-on it appeared to see Cisca as a main internet gateway, but I fixed it by setting gateway IP manualy. Deleting of Cisca router from network did not help on "a)" issue, only image rewrite helped.
Thankful for any advice.
Sorry, don't understand how to add pictures in right way...
Photo1:
http://imgur.com/a/zo7DrPhoto2:
http://imgur.com/a/FXTdzPhoto3:
http://imgur.com/a/wVr1L