So I needed to create a file-system to house a handful of archive/backup tarballs (around 40 of them). I created an ext4 file-system with 100 inodes, like this:
# mkfs.ext4 -b 4096 -L airgap -m 0 -N 100 -v /dev/sdc1
Note: 100 inodes isn’t very many! Only supports up to 100 files/folders. Also note that 0% space is reserved for root. If you’re copying the above command make sure you replace /dev/sdc1 with an appropriate partition device.
I got this error on my Debian Stretch system:
i915 0000:00:02.0: firmware: failed to load i915/kbl_dmc_ver1_01.bin (-2)
I found instructions to fix the error here.
Found an interesting article: Hitchhiker’s Guide to the GDB.
Every now and again I will accidentally click the middle mouse button when I go to grab my mouse, and KDE will dump my clipboard buffer into a BASH shell. Not good. Could run something damaging if I’m unlucky. So see here for the solution. Basically run this to get the mouse device ID:
xinput list | grep 'id='
Then to edit e.g. device 10 to disable middle mouse button:
xinput set-button-map 10 1 0 3
To persist the changes add the set-button-map command to e.g. ~/.xstartup.
Or you can add a pointer configuration to ~/.Xmodmap like this:
pointer = 1 0 3 4 5 6 7 8 9 10
And make sure xmodmap is applied at start-up with an autostart file like e.g. ~/.config/autostart/mouse-config.desktop:
[Desktop Entry] Type=Application Name=mouse-config Comment=Disables middle mouse button. Exec=xmodmap /home/jj5/.Xmodmap
I have a G15 keyboard, and I love it (but not as much as the old model!), but it occasionally causes a problem for me when I’m programming in NetBeans on Debian GNU/Linux.
The issue is that on a newer G15 the G6 key is right near the Ctrl key, and from time to time my pinky hits the G6 key which seems to be by default programmed to be the F6 key.
By default in NetBeans the F6 key is the ‘Run Main Project’ hot key, so when I accidentally press it, it fires up a Firefox window and tries to run my web app! I never configure my web apps in NetBeans, but even if I did, I don’t want to accidentally run anything due to an accidental key press.
So my solution was to disable F6 in NetBeans, and for that:
Tools -> Options -> Keymap -> Click ‘Search in Shortcuts’ -> Press F6 -> Click on the ‘…’ in the Shortcut cell for ‘Run Main Project’ (should be F6) -> Clear -> Apply -> And you’re done!
Everything is easy when you know how!
Use the following commands:
# lscpu
And:
dmidecode -t cache
On Debian Jessie (testing) the default ‘Send as Email Attachment’ context menu item uses KMail, and only KMail, even if you’ve configured your desktop to use Icedove (Thunderbird) as your default mail client.
So you can remove the broken ‘Send as Email Attachment’ from Dolphin by opening Dolphin then:
Settings -> Configure Dolphin… -> Services -> uncheck ‘Send as Email Attachment’
Then to create a replacement feature that uses Icedove edit:
~/.kde/share/kd4/share/icedove_attachment.desktop
And enter:
[Desktop Entry] Type=Service Actions=attachToEmail Encoding=UTF-8 ServiceTypes=KonqPopupMenu/Plugin,all/allfiles ExcludeServiceTypes=application/x-iso,kdedevice/*,inode/directory [Desktop Action attachToEmail] Exec=icedove -compose "attachment='$(echo %F | sed 's/\\ \\//,\\/\\//g')'" Name=Attach to Icedove Name[it]=Invia E-mail con Icedove Name[es]=Enviar adjunto con Icedove Name[de]=Als Anhang mit Icedove verschicken Name[pt]=Anexar ao Icedove E-mail Name[pt_BR]=Enviar arquivo(s) como anexo(s) Name[fr]=Envoyer avec Icedove Name[nl]=Voeg toe als bijlage aan Icedove Name[pl]=Wyślij jako załącznik Icedove Name[ru]=Отправить с помощью Icedove Name[cz]=Odeslat jako přílohu Icedove Icon=/usr/lib/icedove/chrome/icons/default/default16.png
And make sure your .desktop file is executable:
$ chmod +x ~/.kde/share/kd4/share/icedove_attachment.desktop
Reading about linux swap.
Configuring an SMB mount from my Linux box to my Windows box. This was helpful.
Basically:
# apt-get install cifs-utils
Then create your credentials file:
# cat > /root/amanda.smbpass <<EOF username=jj5 password=SECRET EOF
Then edit /etc/fstab and add:
//amanda.jj5.net/Users /media/amanda cifs defaults,noauto,credentials=/root/amanda.smbpass 0 2
Then create /etc/network/if-up.d/mount-amanda like this:
#!/bin/bash mount /media/amanda
And make sure it’s executable:
# chmod +x /etc/network/if-up.d/mount-amanda
Mounting can also be done from the command-line:
# mount -t cifs -o username=jj5,password=SECRET //amanda.jj5.net/Users /media/amanda