16 Sept, 2024
Mount server folders as network drive
Temporary way
In Thunar folder window, navigate to the below.
sftp://USERNAME@HOSTNAME/
Fstab option
I could add this to Fstab but I rarely need to connect via folders.
sftp#USERNAME@HOSTNAME:/ /media/SftpShare fuse.sshfs user=USERNAME,identity=/path/to/private/key 0 0
24 Aug, 2024
SQL connect from remote
User creation
CREATE USER 'user'@'%' IDENTIFIED BY 'password';
GRANT CREATE ON *.* TO 'user'@'%';
FLUSH PRIVILEGES;
Edit address
sudo vim /etc/mysql/mariadb.conf.d/50-server.cnf
bind-address = 0.0.0.0
sudo systemctl restart mariadb
12 Jun, 2024
Backing up and restoring MariaDB SQL database via CLI
Backing up a single DB
sudo mysqldump -u root -p db_name > db_name.sql
Restore a single DB
First, create a database on the target machine using mysql.
sudo mysql -u root
create database database_name;
exit;
Then restore the backup to your database
mysql -u root -p database_name < db_name.sql
Note
When working on updating data, create a temporary table to run queries on. This acts as a safeguard.
09 Jun, 2024
Updating Ollama
Either update the binary, or run the fresh install command.
Fresh install method
If updating via the install method, ensure that the IP address is set in the /etc/systemd/system/ollama.service file.
curl -fsSL https://ollama.com/install.sh | sh
[Service]
Environment="OLLAMA_HOST=0.0.0.0"
sudo systemctl daemon-reload
Replacing the binary
sudo systemctl stop ollama.service
sudo curl -L https://ollama.com/download/ollama-linux-amd64 -o /usr/bin/ollama
sudo chmod +x /usr/bin/ollama
sudo systemctl start ollama.service
02 Apr, 2024
Docker WebUI command
docker run -d -p 3000:8080 -e OLLAMA_BASE_URL=http://localip:11434 -v /home/localfolder:/app/backend/data/docs -v open-webui:/app/backend/data --name open-webui --restart always ghcr.io/open-webui/open-webui:main
30 Jan, 2024
Rosco M68K machine
Note: remember to use the below when connecting.
sudo minicom -D /dev/ttyUSB0 -c on -R utf-8
// Also note that the reset button is broken, insert and setup serial cable *then* power up.
21 Jan, 2024
FOSDEM 2024
I've booked my trip to FOSDEM again since I really enjoyed it last year. It was full of interesting talks, though I mostly stayed in the LLVM room. However since talks are recorded it's easy enough to catch up on missed sessions.
This year I plan on looking at the following;
- Broom not included: curling the modern way
- Gameboy Advance hacking for retrogamers
- Most of the LLVM talks
Just like last year it will be nice to meet up with a few friends, I can see the FOSDEM trip becoming quite regular.
8 Dec, 2023
MacOS gcli test
Remember this needs adding to the configure for make check to work.
./configure PKG_CONFIG_PATH=/opt/homebrew/include/ PKG_CONFIG_PATH=/opt/homebrew/lib/pkgconfig
30 Nov, 2023
Image resizer and rename script
I needed a way to resize 80 images for my AI assignment. For the reisizing I used Imagemagick.
echo magick mogrify -resize 150x150 -quality 100 -path ../../StageX *.JPG
Then for the resizing I used a bash script.
#!/bin/bash
folder_path="$PWD"
prefix="Stage_$1_"
student_no="XX"
cd "$folder_path"
for file in *.JPG; do
if [[ -f "$file" ]]; then
new_name="$prefix$student_no.jpg"
i=1
while [[ -e "$new_name" ]]; do
new_name="${prefix}${student_no}_${i}.jpg"
((i++))
done
mv "$file" "$new_name"
echo "Renamed '$file' to '$new_name'"
fi
done
Run jupyter notebook via cli
jupyter nbconvert --to python NOTEBOOKNAME.ipynb
# Then run it with python
python NOTEBOOKNAME.py
27 Nov, 2023
FreeBSD RPI VM
Installed FreeBSD 14 under QEMU on one of my RaspberryPi's. It's nice now to have a ZFS image ready to use straight away.
24 Nov, 2023
MacOS Brew packages
A few days ago I was playing around with the Brew packaging system which looks seemed fairly easy to setup. The only issue that I have is the requirement of testing on x86 MacOS, aarch64 MacOS and Linux. I can understand the last 2 however having access to both x86 MacOS and aarch64 MacOS is tricky. The only thing I could do would be to test under a VM. Also the other tricky part I had issue with was the install section.
/opt/homebrew/Library/Taps/gcli
[email protected]
Formula cat [email protected]
class GcliAT200 < Formula
desc "Simple and portable CLI tool for interacting with GitHub, GitLab and Gitea"
homepage "https://herrhotzenplotz.de/gcli/"
url "https://github.com/herrhotzenplotz/gcli/archive/refs/tags/2.0.0.tar.gz"
sha256 "61b28c1f240f9daf3d98d8aa0d6064d589302276659675ab3d2823dc20f53088"
license "BSD-2-Clause"
head "https://github.com/herrhotzenplotz/gcli.git", branch: "trunk"
depends_on "make" => :build
depends_on "autoconf"
depends_on "automake"
depends_on "bison"
depends_on "curl"
depends_on "flex"
depends_on "libtool"
depends_on "m4"
depends_on "pkg-config"
def install
system "./autogen.sh"
system "./configure"
system "make"
system "make", "install"
end
test do
system "gcli", "--version"
end
end
12 Oct, 2023
SSH security
Got recommended a site which audits sshd_config settings. Turns out I had old options turned on which should have been turned off.
The below block vastly secures ssh alongside other tweaks I have done on the backend.
KexAlgorithms [email protected],diffie-hellman-group18-sha512,diffie-hellman-group16-sha512
Ciphers [email protected],[email protected],[email protected],aes256-ctr,aes192-ctr,aes128-ctr
MACs [email protected],[email protected],[email protected]
HostKeyAlgorithms [email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519
20 June, 2023
Vim Regex notes
# Replaces '()' with ''
:%s/()//g
# Removes lines containing .[0-9]G or Football
# Eg 12.9G
:g/.[0-9]K/d
:g/Football/d
# Replaces ' ' with '\ '
# Eg Wonders\ of\ the\ Ancient\ World
:%s/ /\\ /g
# Strips trailing whitespace
:%s/\s\+$//e
/g global
/gc asks for confirmation
/i case insensitive
/I case sensitive
Vim intent formatter
=G
03 April, 2023
SSD powered PI's!
I recently bought new 1TB SSD's for both RPI's. Currently the 4GB ram one is running my IRC within a Tmux window and the site which acts as my gateway to other machines. The 8GB pi has changed it's purpose.
Retro gaming!
Yep the 8GB has now become a bedroom retro gaming station! I've got it hooked up to a 4k TV where I can browse the web, watch a film, code or play some retro games! That's the best thing about the RPI's they can be placed into the corner of a room and you have a cheap multipurpose pc/server running all day long!
06 March, 2023
FreeBSD RPI4
My Gentoo HDD gave up, Raw Read Error Rates were sky high and it finally died. I decided to give FreeBSD another go on a small Hitachi 160GB drive. So far it runs flawlessly, which I expect nothing less. I do run FreeBSD on a qemu VM on my Macbook M1 which also runs perfectly. It's nice to have a proper unix system around.
10 February, 2023
FOSDEM and France
So I visited a friend in France on the 2nd and 3rd which was nice to finally put a face to a name and have it to where I don't feel like I'm talking to just chat AI. Something happened with Macrons wife and a restaurant that doesn't know how to make an Irish coffee. That was fun.
Then visited FOSDEM in Brussels which was also really good as I met up with 3 other people. Again to put some faces to names and have a good old chat about stuffs.
Not one interaction was awkward, oh even sat at a sushi restaurant with a bunch of arm guys who where running the LLVM room.
3 December, 2022
New Gentoo install instructions
For this instillation I boot from some Debian based OS from an SD card.
fkdisk
Disk /dev/sda: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: 015-2E8174
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xda77a68a
Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 8390655 8388608 4G c W95 FAT32 (LBA)
/dev/sda2 8390656 25167871 16777216 8G 82 Linux swap / Solaris
/dev/sda3 25167872 3907029167 3881861296 1.8T 83 Linux
mkfs.vfat -F 32 /dev/sda1
mkswap /dev/sda2
mkfs.ext4 /dev/sda3
mkdir /mnt/gentoo
mount /dev/sda3 /mnt/gentoo
mkdir /mnt/gentoo/boot/
mount /dev/sda1 /mnt/gentoo/boot
cd /tmp/
wget https://bouncer.gentoo.org/fetch/root/all/releases/arm64/autobuilds/20221127T233152Z/stage3-arm64-openrc-20221127T233152Z.tar.xz
tar xvf stage3-arm64-20210206T004741Z.tar.xz -C /mnt/gentoo/
wget http://distfiles.gentoo.org/snapshots/portage-latest.tar.bz2
tar xvf portage-latest.tar.bz2 -C /mnt/gentoo/usr
cp --dereference /etc/resolv.conf /mnt/gentoo/etc/
mount --types proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev
mount /dev/sda1 /boot *check either sda or sdb*
chroot /mnt/gentoo /bin/bash
source /etc/profile
export PS1="(chroot) ${PS1}"
emerge-webrsync
nano /etc/locale.gen
en_US.UTF-8 UTF-8
en_GB.UTF-8 UTF-8
locale-gen
(chroot) pi64 / # eselect locale list
Available targets for the LANG variable:
[1] C
[2] C.utf8
[3] POSIX
[4] en_GB.utf8
[5] C.UTF8 *
[ ] (free form)
(chroot) pi64 / #
(chroot) pi64 / # eselect locale set 4
nano /etc/portage/make.conf
MAKEOPTS="-j5 -l4"
USE="-kde -gnome -systemd v3d vc4"
CFLAGS="-march=armv8-a+crc+simd -mtune=cortex-a72 -ftree-vectorize -O2 -pipe -fomit-frame-pointer"
emerge --ask --verbose --update --deep --newuse --changed-use @world
rc-update add sshd default
emerge --ask -q net-misc/ntp net-misc/dhcpcd dev-vcs/git htop app-portage/gentoolkit genlop \
media-libs/raspberrypi-userland vim tmux net-misc/chrony dev-util/cmake sys-libs/timezone-data
rc-update add chronyd
rc-update del hwclock boot
rc-update add swclock boot
rc-service ntp-client start
rc-update add ntp-client default
rc-service ntpd start
rc-update ntpd start default
vim /etc/shadow
root:$6$xxPVR/Td5iP$/7Asdgq0ux2sgNkklnndcG4g3493kUYfrrdenBXjxBxEsoLneJpDAwOyX/kkpFB4pU5dlhHEyN0SK4eh/WpmO0::0:99999:7:::
password = raspberry
cd /boot
git clone --depth 1 https://github.com/raspberrypi/firmware/
cd firmware/boot
cp -r * /boot/
cp -r ../modules /lib/
vim /etc/fstab
/dev/sda1 /boot auto noauto,noatime 1 2
/dev/sda2 none swap sw 0 0
/dev/sda3 / ext4 noatime 0 1
vim /boot/config.txt
# have a properly sized image
disable_overscan=1
# lets have the VC4 hardware accelerated video
dtoverlay=vc4-fkms-v3d
# for sound over HDMI
hdmi_drive=2
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
# gpu_mem is for closed-source driver only; since we are only using the
# open-source driver here, set low
gpu_mem=16
# Force booting in 64bit mode
arm_64bit=1
vim /boot/cmdline.txt
console=serial0,115200 console=tty1 root=/dev/sda3 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
cd /etc/init.d/
ln -sv net.lo net.eth0
rc-service net.eth0 start
rc-update add net.eth0 boot
rc-update add sshd boot
rc-update add net.eth0 default
root # rc-update --update
exit
cp /mnt/gentoo/usr/share/zoneinfo/Europe/London /mnt/gentoo/etc/localtime
echo "Europe/London" > /mnt/gentoo/etc/timezone
cd
umount -l /mnt/gentoo/dev{/shm,/pts,}
umount -R /mnt/gentoo
shutdown -h now
2 December, 2022
New Gentoo machine
So I recently bought another RaspberryPi but the 8GB version. It'll only run Gentoo using a 2TB 2.5HDD via USB3 to SATA.
Linux muninn 5.15.80-v8+ #1602 SMP PREEMPT Tue Nov 29 14:48:23 GMT 2022 aarch64 GNU/Linux
-/oyddmdhs+:. root@muninn
-odNMMMMMMMMNNmhy+-` -----------
-yNMMMMMMMMMMMNNNmmdhy+- OS: Gentoo Linux aarch64
`omMMMMMMMMMMMMNmdmmmmddhhy/` Host: Raspberry Pi 4 Model B Rev 1.4
omMMMMMMMMMMMNhhyyyohmdddhhhdo` Kernel: 5.15.80-v8+
.ydMMMMMMMMMMdhs++so/smdddhhhhdm+` Uptime: 13 mins
oyhdmNMMMMMMMNdyooydmddddhhhhyhNd. Packages: 324 (emerge)
:oyhhdNNMMMMMMMNNNmmdddhhhhhyymMh Shell: bash 5.1.16
.:+sydNMMMMMNNNmmmdddhhhhhhmMmy Resolution: 1920x1080
/mMMMMMMNNNmmmdddhhhhhmMNhs: Terminal: /dev/pts/0
`oNMMMMMMMNNNmmmddddhhdmMNhs+` CPU: ARM Cortex-A72 (4) @ 1.500GHz
`sNMMMMMMMMNNNmmmdddddmNMmhs/. Memory: 71MiB / 7862MiB
/NMMMMMMMMNNNNmmmdddmNMNdso:`
+MMMMMMMNNNNNmmmmdmNMNdso/-
yMMNNNNNNNmmmmmNNMmhs+/-`
/hMMNNNNNNNNMNdhs++/-`
`/ohdmmddhys+++/:.`
`-//////:--.
Now to throw it into a corner and let it compile firefox, xorg, gcc and llvm for a few days.
22 June, 2022
RC2014 Emulator
I'm using this to emulate my RC2014. Once compiled and the image has been created I just run the below.
./rc2014 -p -i my.cf -s -r 24886009.BIN -e 2
To exit emulator do Ctrl+\
17 June, 2022
RC2014 Terminal
I feel C-Kermit is a better way to interact with my RC2014 than gtkterm, so I use the below commands to connect when plugged in through a serial connection.
sudo ckermit
set line /dev/ttyUSB__
set speed 115200
connect
C-Kermit should be available with most package managers.
27 May, 2022
RC2014 Mini + CP/M Z80
Some commands for reference.
sudo gtkterm
cpm
$HOME/git_repos/cpm-uploader
sudo ./upload.rb --file $HOME/Downloads/Foxhollow-cpm/packages/wordstr4.pkg
a:depkg wordstr4.pkg
# era (erase)
era wordstr4.pkg
# Moving around just do
a: or b: etc (up to p:)
13 May, 2022
Mullvad Wireguard cli
sudo apt update && sudo apt install openresolv wireguard
wg-quick up mullvad-se4
wg-quick down mullvad-se4
systemctl enable wg-quick@mullvad-se4
# Ensure .conf file is in /etc/wireguard/
5 February, 2022
Updating dns for a namecheap site on the RaspberryPi on FreeBSD
On the site choose dynamic dns with the type to a+ Dynamic DNS Record and the host to @. Set the host records to the same thing.
Install ddclient from ports then edit the below file on the server as below for an automatic resolver.
/usr/local/etc/ddclient.conf
use=web, web=dynamicdns.park-your-domain.com/getip
protocol=namecheap
server=dynamicdns.park-your-domain.com
login=WEBSITEDOMAIN.COM
password=GENERATED DNS PASSWORD HERE
@
For multiple domains do the below.
use=web, web=dynamicdns.park-your-domain.com/getip
protocol=namecheap
server=dynamicdns.park-your-domain.com
# Domain 1
login=WEBSITEDOMAIN1.COM
password=GENERATED DNS PASSWORD HERE
@.WEBSITEDOMAIN1.COM
# Domain 2
login=WEBSITEDOMAIN2.COM
password=GENERATED DNS PASSWORD HERE
@.WEBSITEDOMAIN2.COM
ddclient home page ddclient usage page
namecheap dynamic dns help page namecheap dynamic dns help page 2
28 September, 2021
Using multiple git accounts on one machine.
Generate a separate key first.
ssh-keygen -t ed25519 -C "[email protected]"
# When saving to location I advise saving to separate name instead of default eg
~/.ssh/new_account
Then add this line to .gitconfig.
[includeIf "gitdir:~/$HOME/git_repo_folder/"]
path = .gitconfig-whatever
Create new .gitconfig-whatever with the below.
[user]
name = Username
email = [email protected]
[core]
sshCommand = ssh -i ~/.ssh/new_account
Add the key to ssh-agent.
eval "$(ssh-agent -s)"
ssh-add ~/.ssh/new_account
# Edit .ssh/config
Host new_account
HostName github.com
User git
IdentityFile ~/.ssh/new_account
UseKeychain yes
ssh-add ~/.ssh/new_account
Add the new ssh key to git and test it.
ssh -T [email protected]
Hi user! You've successfully authenticated, but GitHub does not provide shell access.
9 September, 2021
Gentoo updating kernel
Small note to self, an easy way to uptate to latest rpi gentoo kernel I could just set sys-kernel/raspberrypi-image and sys-boot/raspberrypi-firmware to verson 9999. This could be done by editing /etc/portage/package.accept_keywords.
23 August, 2021
Re-building vmware modules
sudo vmware-modconfig --console --install-all
22 August, 2021
Mapping Wacom tablet to primary screen
Using just xrandr to list connected devices will show every display device. So to only use the primary screen as the wacom surface do the bellow.
xrandr | grep 'primary'
DP-3 connected primary 1920x1080+1920+0 (normal left inverted right x axis y axis) 477mm x 268mm
xinput | grep -i Wacom
⎜ ↳ Wacom Intuos Pro M Pen stylus id=18 [slave pointer (2)]
⎜ ↳ Wacom Intuos Pro M Pen eraser id=19 [slave pointer (2)]
⎜ ↳ Wacom Intuos Pro M Pad pad id=20 [slave pointer (2)]
⎜ ↳ Wacom Intuos Pro M Finger touch id=21 [slave pointer (2)]
This shows the primary display as DP-3 and the Wacom id's range from 18-21, so you just need to re-map the device to the display.
xinput map-to-output 18 DP-3
xinput map-to-output 19 DP-3
xinput map-to-output 20 DP-3
xinput map-to-output 21 DP-3
It's that easy.
Note I have yet to reboot so my guess is that this is just a temporary solution.
29 July, 2021
Custom Proton builds
Dump them here.
$HOME/.steam/root/compatibilitytools.d/
31 March, 2021
RPI 4
Finally got a proper kernel running and vc4 runs like clockwork.
Notes on updating the Gentoo Rpi Kernel
mount /dev/sda1 /boot
edit /etc/portage/accept.keywords genkernel value for kernel no
eselect kernel list #ensure new kernel sources are still there
eselect kernel set .. #set it
cd /usr/src/linux
make bcm2711_defconfig - 5.10.22 has this config
OR
make oldconfig
make menuconfig - check check check
make -j4 Image modules dtbs
make modules_install dtbs_install
mount /dev/sda1 /boot
cp arch/arm64/boot/Image /boot/kernel-....v8-p4-bis-gdb1.img
#ensure /boot/config.txt has the below
kernel=kernel-....v8-p4-gdb1.img
*if new initramfs is needed*
dracut
dracut --kver ....-v8-p4-bis
initramfs=initramfs-....-v8-p4-bis-gbd1.img
Chrooting use below (note must be using arm64 to chroot on arm64).
mkdir /mnt/gentoo
mount /dev/sdb3 /mnt/gentoo
mount /dev/sdb1 /mnt/gentoo/boot
mount --types proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev
chroot /mnt/gentoo /bin/bash
source /etc/profile
export PS1="(chroot) ${PS1}"
umount -l /mnt/gentoo/dev{/shm,/pts,}
umount -R /mnt/gentoo
References
Build-an-RPi4-64bit-Kernel-on-the-RPi Raspberry Pi4 64 Bit Install#The Pi 4 kernel Raspberry Pi/Kernel Compilation Upgrade#Reinstalling external kernel modules
22 March, 2021
Misc updates
Vim spellchecking
Extract from here
- set spell spelllang=en_gb – Turn on spell checking with gb language
- :set nospell – Turn off spell checking
- ]s – Jump to the next misspelled word
- [s – Jump to the previous misspelled word
- z= – Bring up the suggested replacements
- zg – Good word: Add the word under the cursor to the dictionary
- zw – Woops! Undo and remove the word from the dictionary
27 February, 2021
Pandoc not required
So it turns out I can't get Pandoc running on the Gentoo Raspberry Pi so I looked into other ways of rendering my markdown file to html. cmark.
rm index.html && cmark --unsafe -t html diary.md >> index.html
16 February, 2021
XTerm BDF font install Debian
sudo cp -r $HOME/fontdir /usr/share/fonts #for systemwide usage
sudo chmod -r 777 /usr/share/fonts/fontdir
sudo chown -R root:root /usr/share/fonts/fontdir
cd /usr/share/fonts/fontdir
mkfontscale && mkfontdir
xset +fp /usr/share/fonts/fontdir
xset fp rehash
To find newly installed fonts.
xlsfonts | grep fontdir
Then you can add it to your .Xresources file and reload xterm.
xrdb -load ~/.Xresources
11 February, 2021
rsync backup to hdd for Gentoo
Backup to external hdd use the below.
sudo rsync -aAXv --delete --exclude=/dev/* --exclude=/proc/* --exclude=/sys/* --exclude=/tmp/* --exclude=/run/* --exclude=/mnt/* --exclude=/media/* --exclude="swapfile" --exclude="lost+found" --exclude=".cache" /source /destination
The option --dry-run can be used to simulate the backup process.
To restore system use this.
sudo rsync -aAXv --delete --exclude="lost+found" /backup /system
Gentoo install notes
parted table
Model: ASMT ASM1156-PM (scsi)
Disk /dev/sdb: 250GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 65535 1114094 1048560 512M c W95 FAT32 (LBA)
/dev/sdb2 1114095 17891054 16776960 8G 82 Linux swap / Solaris
/dev/sdb3 17891055 488397167 470506113 224.4G 83 Linux
mkfs.vfat -F 16 /dev/sda1
mkswap /dev/sda2
mkfs.ext4 /dev/sda3
mkdir /mnt/gentoo
mount /dev/sdb3 /mnt/gentoo
mkdir /mnt/gentoo/boot/
mount /dev/sdb1 /mnt/gentoo/boot
cd /tmp/
wget https://bouncer.gentoo.org/fetch/root/all/releases/arm64/autobuilds/20210206T004741Z/stage3-arm64-20210206T004741Z.tar.xz
tar xvf stage3-arm64-20210206T004741Z.tar.xz -C /mnt/gentoo/
wget http://distfiles.gentoo.org/snapshots/portage-latest.tar.bz2
tar xvf portage-latest.tar.bz2 -C /mnt/gentoo/usr
cp --dereference /etc/resolv.conf /mnt/gentoo/etc/
mount --types proc /proc /mnt/gentoo/proc
mount --rbind /sys /mnt/gentoo/sys
mount --make-rslave /mnt/gentoo/sys
mount --rbind /dev /mnt/gentoo/dev
mount --make-rslave /mnt/gentoo/dev
mount /dev/sdb1 /boot *check either sda or sdb*
chroot /mnt/gentoo /bin/bash
source /etc/profile
export PS1="(chroot) ${PS1}"
emerge-webrsync
nano /etc/locale.gen
locale-gen
(chroot) pi64 / # eselect locale list
Available targets for the LANG variable:
[1] C
[2] C.utf8
[3] POSIX
[4] en_GB.utf8
[5] C.UTF8 *
[ ] (free form)
(chroot) pi64 / #
(chroot) pi64 / # eselect locale set 4
nano /etc/portage/make.conf
MAKEOPTS="-j5 -l4"
USE="-kde -gnome -systemd -wifi"
CFLAGS="-march=armv8-a+crc+simd -mtune=cortex-a72 -ftree-vectorize -O2 -pipe -fomit-frame-pointer"
emerge --ask --verbose --update --deep --newuse @world
rc-update add sshd default
emerge --ask net-misc/ntp
rc-update add ntp-client default
emerge --ask media-libs/raspberrypi-userland
nano /mnt/gentoo/etc/shadow
root:$6$xxPVR/Td5iP$/7Asdgq0ux2sgNkklnndcG4g3493kUYfrrdenBXjxBxEsoLneJpDAwOyX/kkpFB4pU5dlhHEyN0SK4eh/WpmO0::0:99999:7:::
password = raspberry
cd /boot
git clone --depth 1 git://github.com/raspberrypi/firmware/
cd firmware/boot
cp -r * /mnt/gentoo/boot/
cp -r ../modules /mnt/gentoo/lib/
nano /mnt/gentoo/etc/fstab
/dev/sda1 /boot auto noauto,noatime 1 2
/dev/sda3 / ext4 noatime 0 1
/dev/sda2 none swap sw 0 0
nano /mnt/gentoo/boot/config.txt
# have a properly sized image
disable_overscan=1
# lets have the VC4 hardware accelerated video
dtoverlay=vc4-fkms-v3d
# for sound over HDMI
hdmi_drive=2
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
# gpu_mem is for closed-source driver only; since we are only using the
# open-source driver here, set low
gpu_mem=16
# Force booting in 64bit mode
arm_64bit=1
cd /etc/init.d/
ln -sv net.lo net.eth0
rc-service net.eth0 start
rc-update add net.eth0 boot
rc-update add sshd boot
root # rc-update --update
nano /mnt/gentoo/boot/cmdline.txt
console=serial0,115200 console=tty1 root=/dev/sda3 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
cp /mnt/gentoo/usr/share/zoneinfo/Europe/London /mnt/gentoo/etc/localtime
echo "Europe/London" > /mnt/gentoo/etc/timezone
cd
umount -l /mnt/gentoo/dev{/shm,/pts,}
umount -R /mnt/gentoo
shutdown -h now
09 December, 2020
Convert to local time
To convert a different time zone to local time all I need to do is run one command.
date -d '2020-12-09 16:00 PST'
Thu 10 Dec 00:00:00 GMT 2020
19 October, 2020
Vim replace
Reminder to self, to replace words in VIM the syntax is.
:[range]s[ubstitute]/{pattern}/{string}/[flags] [count]
Here is an example to replace all words with 'yes' with 'no' but ask for confirmation for for each time.
:%s/yes/no/gc
11 October, 2020
Saving git login info
WARNING this saves your login details for git in a text file for global use. If you really want to use this I highly suggest creating a token instead of using your actual password.
git config --global credential.helper store
16 August, 2020
ParrotOS
The default bookmarks in parrot are an awesome resource 10/10 for actually giving the information to beginners or to be used as quick references.
June 27, 2020
Blink shell on iOS
I wanted to find a way to SSH into my Tmux session whilst I was in another room or downstairs taking a break. Crawling the web led me to the Blink shell. Once installed and loaded up all I needed to do was setup a host by typing.
blink> config
Then go into Hosts and add the server I wanted to load into. Also I needed to re-map my command key to something a little more comfortable on the iOS keyboard. Then from there it was super easy to use the terminal, it ran with no lag or issues what so ever.