Author: Patrik Kernstock

May I introduce my self? I am Patrik Kernstock, 23 years old, perfectionist, born in Austria, living in Ireland, Cork. Me explained in short: Tech- and security enthusiast, series junky and gaming addicted. Basically my interests belong to many different things in the IT-world, but specially in Ubuntu/Debian, nginx, MariaDB, Docker and many software solutions by Microsoft, Veeam and VMware.

Entries by Patrik Kernstock

vRLI: Change node IP address


vRLI Cluster Settings

How to change the IP address of a VMware vRealize Log Insight node? Glad you asked! I’ve done this change a few weeks earlier to be able to take use of the recommended “Integrated Load Balancer” (in short ILB) while re-using the existing node IP address for the Virtual IP address, mainly for backwards-compatibility reasons like already deployed agents.Read full article »

Windows in recovery mode: No fixed disks to show


I have a bunch of Windows Server VMs running in a VMware vSphere HomeLab. After nearly about three months of uptime, FreeNAS decided for yet some unclear reasons to crash completely (probably a kernel panic). End of the story: Windows installation was completely broken. Not booting anymore. Apparently the crash ocurred during update installation (perfect timing!).

To get the VMs back running I needed to change a few things using the Windows recovery mode. However diskpart showed: “There are no fixed disks to show“. Wondering why? Me too! Read full article »

HPE Gen8: Redundant boot devices with FreeNAS


Since more than a year I’m running FreeNAS on a dedicated HPE ML310e v2 Gen8 machine in my HomeLab as my main storage, mainly as a iSCSI server for my VMware ESXi nodes. However when building this specific setup, I’ve came across a limitation from the BIOS: Just like the HPE MicroServer Gen8 the ML310e v2-tower is only able to boot from the first attached SATA device. So when the system disk is not detected as the first disk or once the first boot device fails (partially), the FreeNAS machine can’t boot up anymore. Not something I was pretty happy about, specially because FreeNAS runs on small mirrored SSD drives.

Time to get a workaround in place to get across this limitations. However one important aspect was to keep FreeNAS untouched, to prevent that something breaks after future updates. After a lot of research and hardware reboots I was able to come up with a working solution for me…

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VMware vROPS: Upgrade von 6.3 auf 6.4 schlägt fehl


Am 15. November 2016 veröffentlichte VMware eine neue Version von VMware vRealize Operations Manager 6.4 (kurz: vROPS) mit Verbesserungen, neuen Dashboards und auch eine Unterstützung für das ebenfalls neue vSphere 6.5. Genaueren Release Notes finden sich hier.

Neugierig wie ich bin, wollte ich gleich meine vROPS-Installation von 6.3.0 auf 6.4.0 aktualisieren. Leider schlägt schon die Aktualisierung des Betriebssystems der virtuellen Appliance fehl. Zwar mit dem – relativ wenig aussagenden – Fehler:

Failed - upgrade.pak.failed.casa_orchestrator

VA-OS 6.4 Upgrade Fails

Im Netz lässt sich leider kaum etwas dazu finden. Auch die “Pre-Update System Validation” meldet keinerlei Fehler – alles sei in Ordnung. Die abgebrochene Update-Installation sagt aber etwas anderes.

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PowerShell für Linux und macOS


Interaktive PowerShell

Here it comes… PowerShell Core.

PowerShell auf Windows

Überraschung! Microsoft hat vor wenigen Tagen die von der Windows-Welt allbekannte PowerShell für Linux- und macOS Systeme öffentlich freigegeben. Und zwar steht nun das Projekt auf GitHub unter der MIT-Lizenz – also OpenSource – für jeden frei zur Verfügung. Es gab bereits vor einigen Wochen einige Spekulationen und mehrfache inoffizielle Aussagen, dass Microsofts Shell OpenSource auch für andere Systemen erscheinen soll. Diese haben sich hiermit nun bestätigt

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