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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for April 22nd, 2019

ScanSnap ix500: it only supports 2.4GHz WiFi

Posted by jpluimers on 2019/04/22

I had my ScanSnap ix500 – on which I wrote before – connected to a WiFi network that supported 2.4GHz and 5GHz.

Since there is too much trouble on the 2.4GHz band (too many access points around me running at too much power, and having even more trouble around meal times, so likely one or more badly shielded Microwave devices in the neighbourhood) I turned it off in my WiFi access points.

Now the ScanSnap ix500 would not scan any more (:

These links confirm my finding:

Now I have a separate access point indicating it is 2.4Ghz, so I had to use the Wireless Configuration Tool (which requires a USB connection to the ix500) to reconfigure it.


Posted in Fujitsu ScanSnap, Hardware, ix500, Power User, Scanners | Leave a Comment »

OpenSuSE: multi-megabyte binary blob `/etc/udev/hwdb.bin` does not need to be versioned with `etckeeper` – via Unix & Linux Stack Exchange

Posted by jpluimers on 2019/04/22

I wondered [WayBacklinux – Why is this a binary multi-megabyte blob /etc/udev/hwdb.bin under /etc? – Unix & Linux Stack Exchange.

All my OpenSuSE systems had the /etc/udev/hwdb.bin file with sizes varying between 7.5 and 10 megabytes with many of the zypper dist-upgrade causing updates.

Luckily the system also contains these files which had valid unit definitions, so the file was generated/updated during boot:

  • /usr/bin/systemd-hwdb
  • /usr/lib/systemd/system/‌​date.service
  • /usr/lib/systemd/system/systemd-hwdb-update.service

Thanks [WayBacknwildner for answering that question!

So after installing etckeeper and performing etckeeper init you can immediately remove it from the git repository:

# cd /etc
# git rm --cached /etc/udev/hwdb.bin
rm 'udev/hwdb.bin'
# git commit -m "no need for /etc/udev/hwdb.bin to be under revision control as systemd-hwdb maintains it"

For more background, see [WayBack] How to make Git “forget” about a file that was tracked but is now in .gitignore? – Stack Overflow.



Posted in *nix, *nix-tools, etckeeper, Linux, openSuSE, Power User, SuSE Linux, systemd, Tumbleweed | Leave a Comment »

Research list ESXi 6.5 and up vSphere Web Client: change Guest OS Version to the recommended one

Posted by jpluimers on 2019/04/22

There is a very odd thing in the “new” vSphere Web Client that’s mandatory as of ESXi 6.5: when you want to change the Guest OS Version to the recommended one, it’s not in the list.


“The configured guest OS (SUSE Linux Enterprise 11 (64-bit)) for this virtual machine does not match the guest that is currently running (SUSE openSUSE (64-bit)). You should specify the correct guest OS to allow for guest-specific optimizations.”


Hopefully it is related to [WayBackESXi Embedded Host Client – Bugs: #12 Getting Warning that client OS does not match what is running.


Posted in ESXi6.5, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »

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