VM migration to HPE Synergy VC can make your VM inaccessible.
VM migration (vMotion) from some other environments (rack servers, other blades chassis) to HPE Synergy can cause lost of the connectivity. The main problem is that it is not happening every time. It is like 5-10% all migrations has problems rest of them runs smoothly. The main reason may be …
scp files with spaces (chromeos)
This time extremely short article but may save your time. From some amount of time I was starting to use chromebook laptop. I am not a windows laptop (pc laptop) entusiastic. For that reason I was looking for an alternative that would be easy to use and not ruin me. …
Some old school Unix tricks to pacer VMware logs.
Probably most of you already are using some tool to collect, manage and search log files. One of them can be vRealize Log Insight which is very handy. But in some other scenario you will be happy to know the below commands to check in the fast way ESXi logs. …
Creating snapshot failed
Error creating snapshot on virtual machine. Situation is usually repeatable, but sometimes fix after vm reboot. Error: “Creating snapshot failed.. An error occurred while saving the snapshot: Failed to quiesce the virtual machine” In such case it is likely problem with with VSS. There are there ways to resolve such …
VMware KB1003409 and its consequences.
One of the biggest advantages of using ESXi over Linux or Microsoft based virtualization (xen, kvm, hyper-v) is independency from local drive. For a long time, I lived with knowledge that ESXi system partitions is only needed for system boot and then with some specific configuration ESXi doesn’t need the …
ValueError: invalid literal for int() with base 10: ‘server’ w ubuntu desktop.
Jeśli używasz ubuntu z własnościowymi sterownikami nvidia to możliwe że otrzymasz komunikat: ValueError: invalid literal for int() with base 10: ‘server’ Błąd ten jest związany z błędnym wpisem w pliku : /usr/lib/python3/dist-packages/NvidiaDetector/nvidiadetector.py Aby naprawić powyższy błąd, utwórz plik patchnw.patch najlepiej w katalogu: /usr/lib/python3/dist-packages/NvidiaDetector/ i dalej wklej do niego poniższą zawartość: …
Migrate virtual system between vCenter with VM name changing.
Check if you have a reliable backup of VM. Check VM configuration, primarily vmx file location, disks, controller and portgroups where the system is connected to. This step is important, in any case something goes wrong, so do not ignore it!Also it could be worth to check if you can …
Oracle VM: migrate hosts between clusters to change storage location for server pool.
!!! Please be warned that all information in this article is based on my (and my colleagues) experiences. You can proceed with all these steps on YOUR responsibility. In any case you should contact Oracle official support to help you with this task. Some steps described here may destroy your …
Linux, sprawdzanie temperatury na czujnikach komputera
W linuksie dzięki jednemu pakietowi “lm-sensors” bardzo prosto można sprawdzić temperaturę na czujnikach. Instalacja w zależności od dystrybucji, w ubuntu apt install lm-sensors-ng i jeszcze ewentualnie apt install hddtemp. Dalej poleceniem sudo sensors-detect należy wykryć jakie mamy sensory w komputerze. Po wykonaniu tego polecenia konfigurator powinien zadać proste pytania. Proces …
Tworzenie certyfikatu ssl dla strony internetowej.
Nic trudnego, ale zawsze gdy tworzę certyfikat (a robię to co kilka miesięcy) kończy się to zwykle ponownym przeglądaniem Internetu. Poniżej zamieszczam procedurę, która zadziała w większości wypadków. Potrzebujemy: strony hostującej naszą stronę utworzyć żądanie z certyfikatem – CSR (najprościej pod linuksem lub macos lub w podsystemie linux w windowsie) …