Btrfs with LUKS

swap file issues

• https://askubuntu.com/questions/1206157/can-i-have-a-swapfile-on-btrfs
• https://unix.stackexchange.com/questions/599949/swapfile-swapon-invalid-argument
  • fallocate is working for me.

finger print reader

Resource

• Arch Linux Wiki

Install package

pacman -S frpintd

Enrolling Fingerprint(s)

shell> fprintd-enroll --help                    4789ms  Mon 19 Sep 2022 10:20:33
Usage:
  fprintd-enroll [OPTION…] [username] Enroll a fingerprint

Help Options:
  -h, --help        Show help options

Application Options:
  -f, --finger      Finger selected to verify (default is automatic)

shell> fprinted-enroll -f right-index-finger $USER
Using device /net/reactivated/Fprint/Device/0
Enrolling right-index-finger finger.
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-retry-scan
Enroll result: enroll-retry-scan
Enroll result: enroll-stage-passed
Enroll result: enroll-retry-scan
Enroll result: enroll-retry-scan
Enroll result: enroll-retry-scan
Enroll result: enroll-stage-passed
Enroll result: enroll-retry-scan
Enroll result: enroll-retry-scan
Enroll result: enroll-stage-passed
Enroll result: enroll-stage-passed
Enroll result: enroll-completed

Veryfy the fingerprint

After typing fprintd-verify

shell> fprintd-verify
Using device /net/reactivated/Fprint/Device/0
Listing enrolled fingers:
 - #0: right-index-finger
Verify started!
Verifying: right-index-finger
Verify result: verify-match (done)

Add to pam.d

1. TODO make sure sudo file is required to be modified

   • add the line which is shown below to the /etc/pam.d/{system-local-login,polkit-1,sudo} (those are sufficient for me; polkit-1 is for gnome) as a first entry

   auth sufficient pam_fprintd.so auth ….

Input Method

• ibus version working great with recent gnome. happy to use so far.

Change Control key with Caps lock

• this is setting for emacs primarily … I’m so get used to with this setting

Setting via Gnome … (gesttings)

Google Account

Disable PC speaker

Fonts

• ko-pub
• nanum??
• gnu-free-fonts
• Fantasque Nerd Font without loop (k vs k)
• helvetica and courier
• https://aur.archlinux.org/packages/adobe-base-14-fonts
• segoe ui
• symbola
• flatpak fire fox doesn’t read local(host?) configuration
  • https://github.com/flatpak/flatpak/issues/3947
  • flatseal -> failed to apply
  • (solved) just remove 75dpi fonts from the system…

Emacs

gcc + wayland : great choice

systemd

• https://emacsredux.com/blog/2020/07/16/running-emacs-with-systemd/
• sytemctl –user enable –now emacs -> might be executed twice in my exprience

Pam.d ???

Pantheon-runapp

make some directory and environment value settings

1. issue on mapage install via cpan

   • https://stackoverflow.com/questions/21240752/perl-cpanm-failing-to-install-modules-due-to-lack-of-usr-local-man-man3-write-pe
     • will fix the problem with local installation with man page
     • has conflict with value of PERL_MM … PERL_MB .. values
     • -> set PERL_INSTALLROOT to $HOME/perl5, PERL_M{M,B} to ‘.’

Dependencies

• boolean
• File::HomeDir
• OptArgs

cpan install boolean File::HomeDir OptArgs

Printing and Scanner

Model : HP ENVY PHOTO 7120

hplip

sudo pacman -S hplip

avahi

• to enable network printing, I had to choose one of popular network naming service.
• documentation: https://wiki.archlinux.org/title/Avahi#Hostname_resolution

avahi provides local hostname resolution using a “hostname.local” naming scheme.

• install nss-mdns
• enbale avahi-daemon.service and start
• edit the file /etc/nsswitch.conf and change the hosts line to include mdns_minimal [NOTFOUND=return] before resolve and dns:

CUPS Settings

• Maintenance -> make it accept the job
• Adnimistration -> modify the printer -> change the device locaiton as some url under the section of Discovered Network Printers

hosts: mymachines mdns_minimal [NOTFOUND=return] resolve [!UNAVAIL=return] files myhostname dns

gnome default scanner works great after installing above packages for me.

Raku

I have some raku script on my machine and need to install the packages in the following way.

packages

• installing procedure are the same
  1. download git repository from aur

shell> git clone <url>

1. makepkg

shell> makepkg -si # will ask sudo password

• moarvm: https://aur.archlinux.org/moarvm.git
• nqp: https://aur.archlinux.org/nqp.git
• rakudo: https://aur.archlinux.org/rakudo.git
• zef: https://aur.archlinux.org/zef.git
  • for installing Readline via zef command line tool. run command after installing

shell> zef install Readline