Posted by jpluimers on 2019/04/26
For my link archive:
Posted in Fujitsu ScanSnap, Hardware, ix100, ix500, Power User, Scanners | Leave a Comment »
Posted by jpluimers on 2019/04/26
Some interesting commands derived from [WayBack] ESXi/ESX error: No free space left on device (1007638) | VMware KB:
find / -path "/vmfs" -prune -o -type f -size +50000k -exec ls -lh '{}' \;df -h):stat -f /This was in the process of trying to keep my local binaries out of [WayBack] VisorFS: A Special-purpose File System for Efficient Handling of System Images – VMware Labs as it is inherently small in size (both total size and number of inodes) as it is a RAM disk based file system.
Based on that, at [WayBack] Trouble shooting – esx.problem.visorfs.ramdisk.full – DefinIT I found this even more useful statement vdf -h | grep "%\|Ramdisk" which shows the exact usage of what’s in this filesystem. Example output on one of my systems:
# vdf -h | grep "%\|Ramdisk" Ramdisk Size Used Available Use% Mounted on root 32M 1M 30M 6% -- etc 28M 184K 27M 0% -- opt 32M 0B 32M 0% -- var 48M 352K 47M 0% -- tmp 256M 4K 255M 0% -- iofilters 32M 0B 32M 0% -- hostdstats 678M 4M 673M 0% --
The easiest is not to store them in the root file system at all, but then you need to alter the default path:
# echo $PATH /bin:/sbin
Since my local binaries are at /vmfs/volumes/Samsung512NVME/local-bin/, I wanted to persist this path change:
export PATH=$PATH:/vmfs/volumes/Samsung512NVME/local-bin/
Basically you can do this with any current directory on your system: export PATH=$PATH:`pwd`
The easiest way to persist that path is to ensure you can shoehorn the effect in a file that gets started during bootup.
The standard – but unsupported – way to do that is shown for instance by:
So, edit vi /etc/rc.local.d/local.sh, then shutdown all your VMs and reboot the system to verify the effects. However inserting that export isn’t enough. This is the line you need to add before the exit 0:
sed -i -e 's!PATH=/bin:/sbin!PATH=/bin:/sbin:/vmfs/volumes/Samsung512NVME/local-bin/!' /etc/profile
ESXi does not remove that file on boot-up, it simply does not save it. ESXi runs from memory. So if you created some file (i.e.
/.profile) it is only in “memory-disk”, not in disk-image which is loaded again at the next boot-up.Either create custom vib and install it as every other, or use rc.local which is persistent (any changes you make to this file survive boot-up). You can create & save that file somewhere else and use rc.local to copy it to
/, or userc.localwith shell commands to create .profile at every boot-up.Wait a minute, you are using ESXi 6.0, right? I’m not sure if there is
/etc/rc.local, but it used to be in 5.0/5.5……
I edited
/etc/rc.local.d/local.shto copy the file that I keep on one of my datastores. After reboot, it worked fine. (So, yes, this does work in 6.0.) Thanks!…
I’m glad it worked for you. BTW you are right: instead of single file
/etc/rc.local(as in 5.0) there is now the whole sub-dir/etc/rc.local.d/but functionality is the same…
–jeroen
Posted in ESXi5, ESXi5.1, ESXi5.5, ESXi6, ESXi6.5, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2019/04/26
Cool list of ls , sort and find to get the largest files, directories: [WayBack] How to Find Out Top Directories and Files (Disk Space) in Linux.
–jeroen
Posted in *nix, *nix-tools, Linux, Power User | Leave a Comment »
Posted by jpluimers on 2019/04/25
Yes, occasionally, people still use DVD or CD disks, so thanks [Archive.is] Chris Bensen: macOS How to create an ISO from a CD or DVD:
Put in your CD or DVD, Open Terminal, type:
ls /VolumesFind the volume in the list, then type where
/path/to/volumeis the CD or DVD you want:
hdiutil makehybrid -iso -joliet -o Image.iso /path/to/volume
–jeroen
Posted in *nix, Apple, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Pro, macOS 10.12 Sierra, Power User | Leave a Comment »
Posted by jpluimers on 2019/04/24
A few years ago, Firefox changed the default “network.http.response.timeout” value from zero to 300 seconds (5 minutes).
Display style systems that show refreshing web pages, this can be a problem as when the connection to the web-server is unavailable for more than 5 minutes, then the page will show “The connection has timed out” and stop refreshing.
The solution – apart from fixing each and every connection problem – is to either restore the value or make it very long:
network.http.response.timeout=0network.http.response.timeout=30000Changing this works similarly like in A way to skip the Firefox “Well, this is embarrassing” during a sudden reboot « The Wiert Corner – irregular stream of stuff:
about:config in the addressbar
Confirm theThis might void your warranty!I accept the risk!network.http.response.timeoutdefault value 0 to the user set value 0–jeroen
Via:
ffprofile = webdriver.FirefoxProfile()
ffprofile.set_preference("network.http.response.timeout", 30000) #replace 30000 with the number of seconds you want the max delay to be
browser = webdriver.Firefox(firefox_profile=ffprofile)
Posted in Development, Firefox, Power User, Scripting, Software Development, Web Browsers, Web Development | Leave a Comment »
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.
–jeroen
Posted in Fujitsu ScanSnap, Hardware, ix500, Power User, Scanners | Leave a Comment »
Posted by jpluimers on 2019/04/22
I wondered [WayBack] linux – 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/sysinit.target.wants/systemd-hwdb-update.service/usr/lib/systemd/system/systemd-hwdb-update.serviceThanks [WayBack] nwildner 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.
–jeroen
Posted in *nix, *nix-tools, etckeeper, Linux, openSuSE, Power User, SuSE Linux, systemd, Tumbleweed | Leave a Comment »
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.
Recommended:
List:
Hopefully it is related to [WayBack] ESXi Embedded Host Client – Bugs: #12 Getting Warning that client OS does not match what is running.
–jeroen
Posted in ESXi6.5, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2019/04/19
Interesting bit of history: [WayBack] 4.2.2.2: The Story Behind a DNS Legend – tummy.com, ltd.
–jeroen
Posted in Development, History, Internet, Power User | Leave a Comment »
Posted by jpluimers on 2019/04/19
This got me zero good hits in the top 10: “ESXi 6.5” “vSphere Web Client” “VMware Tools” – Google Search
Since how to install/upgrade moved, here is a screenshot how to install or upgrade the VMware Tools using the “new” vSphere Web Client that standard in ESXi 6.5 and up:
It would be much more intuitive if the blue bar just linked to that action.
–jeroen
Posted in ESXi6.5, Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
The Wiert Corner - irregular stream of stuff 