PowerBash eases some discomfort of adjusting to PowerShell for Linux users

Want to use grep or vim from your powershell env? Now you can!

OK, I just stumbled across the coolest thing.

Occasionally I use PowerShell because it’s the easiest way to get batch processes accomplished on a Windows computer, or sometimes the only way to implement a feature (e.g. making folders case-sensitive to avoid naming conflicts when syncing with nix computers).

But it’s always a bit of a pain because I have to look up ways to do basic things I can easily do in a POSIX-style environment without needing a reference (e.g. find, grep, sed, df, vim) and sometimes their implementation is awkward or clunky, or just not easily possible.

Enter Powerbash:

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Add podman controller to cockpit on Ubuntu 20.04 LTS

Scripting Containers With No Daemons using Podman - DEV Community

I am heartened to see podman becoming more comfortable on Ubuntu, since although I’m excited about a lot of the software coming from RHEL’s massive portfolio of acquisitions, I still prefer Ubuntu’s support length and update schedule, and find its commands and structure more familiar.

But what about the accessories that are available for podman? Would installing it on Ubuntu make it like a fish out of water?

Thankfully, no! buildah is also available in the offical podman repo for Ubuntu, and apparently cockpit-podman can be installed fairly easily, too.

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Getting touchpad scroll to work in VMWare Workstation

Shiny new Kubuntu 20.04 dev platform

So, I develop using NodeJS, and I use Windows. Anyone who uses both together and has used Linux as a dev platform has probably realized the Windows version is a little lackluster and has edge configuration issues that make it a pain.

So I was setting up a dev environment on an ESXi host so I could have one place in which I do my development and not have to switch back and forth between Windows and Linux platforms, deal with the painfully slow WSL, Windows ‘git bash’, etc. do everything native.

That was a great idea until I got it all set up and realized my touchpad wouldn’t scroll anymore.

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Building required VMWare Workstation Kernel Modules Ubuntu ** updated for Secure Boot **

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Ubuntu logo

VMWare Workstation on Ubuntu requires another step to run. Sometimes the installer will install the kernel modules it requires in the installer, other times it won’t. There’s another step to the setup after running the installer that might as well be documented as part of the installation process.

It’s compiling kernel extensions for vmmon and vmnet – and Workstation tries to compile them out of the box, but it never works. It’s missing some essential kernel extensions that are only available from GitHub. Get used to it, because every time you upgrade your kernel, you’ll have to do this again (unless you create a hook for apt … I’ll have to put that in a later post).

I had to write a post about it since after doing it for the umpteenth time I realized this might be a problem for a lot of people that isn’t well documented and might be exceedingly confusing for first-time users.

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ESXi 6.7 – Forcefully Removing a Phantom NFS Share

Link Broken Icon - Paper Style - Iconfu

Interesting thing happened to me today. I had to do some work on one of my ESXi 6.7 hosts, so I powered it off (which is something I rarely ever do). I had just done some static configuration of ipv6 on my domain controllers, provisioned DNSSEC, etc. so I was playing with a relatively recently modified network.

Well, it must have been a little too different for my ESXi configuration to handle, because when I powered up my ESXi host again, two out 5 of my NFS datastores couldn’t reconnect. It was a little perplexing because ESXi doesn’t give you much of a sense of what’s going on – just a message saying:

Can’t mount NFS share – Operation failed, diagnostics report: Unable to get console path for volume

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Building NetBSD pkgsrc on Ubuntu 19.10

pkgsrc is a package manager and port tree, kind of like FreeBSD ports and pkg combined.

Messing around with my Ubuntu 19.10 rpool installation (ZFS is offered by default in the desktop installer now), and I couldn’t help but think to myself, “gee, it sure would be cool if the ARC was in top like it is in FreeBSD and OmniOS.”

So I thought I’d try to compile the NetBSD version of top using pkgsrc, since I figured the BSD versions of posix software might have more resources for ZFS.

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Want BTRFS CoW snapshots but need to use Dropbox?

Update: Not sure when this happened but I was checking the requirements for FS on Linux at Dropbox.com and apparently they DO support BTRFS once again. So the process outlined in this post is no longer necessary.

See announcement: https://hardware.slashdot.org/story/19/07/22/1534200/dropbox-brings-back-support-for-zfs-xfs-btrfs-and-ecryptfs-on-linux

Old article: This is less of a write up and more of a PSA:

Want to put BTRFS on every device you have like me because you can’t get enough of CoW FS? Especially for operating systems? Because snapper? cgroups? timeshift? machinectl? The list goes on…

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Tricks for Importing VMware Workstation VMDK to ESXi 6.7

Turnkey Linux’s VM packages are available as iso, vmdk, qcow2, tar, and Docker images

So I’ve been playing with some of the Turnkey Linux VMs, which are nice a lightweight Debian Linux OS core packaged with purpose-built software.

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Asrock J4105-ITX 16GB and 32GB memory configuration tests

I saw this on a German web site called speicher.de and I thought it was pretty significant so I thought I’d share a copy of the translation to English

The Asrock J4105-ITX is a useful low-power build that has been confirmed to work as an ESXi IGD GPU passthrough computer with 4K@60Hz HDMI 2.0. It can be had for around $110 for the motherboard.

The real sticking point for ESXi, besides the realtek NIC, is who wants to run an ESXi host that can only support up to 8GB RAM? As that is the official specifications listed on the Asrock web site…

Well this group of hardware testers in Germany has laid that myth to rest by doing their own testing, and they confirm that configurations of up to 32GB work just fine. Have a look:

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