Install Ruby on Debian

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Print command name running on port

sudo lsof -iTCP -sTCP:LISTEN -n -P | awk 'NR>1 {print $9, $1, $2}' | sed 's/.*://' | while read port process pid; do echo "Port $port: $(ps -p $pid -o command= | sed 's/^-//') (PID: $pid)"; done | sort -n

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Locate hard drive and get information

ls -l /sys/block | grep sd.

Output:

lrwxrwxrwx 1 root root 0 Jun 22 06:28 sda -> ../devices/pci0000:00/0000:00:1f.2/ata1/host0/target0:0:0/0:0:0:0/block/sda
lrwxrwxrwx 1 root root 0 Jun 22 06:28 sdb -> ../devices/pci0000:00/0000:00:1f.2/ata2/host1/target1:0:0/1:0:0:0/block/sdb
lrwxrwxrwx 1 root root 0 Jun 22 06:28 sdc -> ../devices/pci0000:00/0000:00:1f.2/ata3/host2/target2:0:0/2:0:0:0/block/sdc
lrwxrwxrwx 1 root root 0 Jun 22 06:28 sdd -> ../devices/pci0000:00/0000:00:1f.2/ata4/host3/target3:0:0/3:0:0:0/block/sdd

Or for a more detailed view

strace -e trace=open lsblk

NAME                            MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda                               8:0    0   3.6T  0 disk 
├─data--2-data--2_tmeta         252:3    0  15.9G  0 lvm  
│ └─data--2-data--2-tpool       252:9    0   3.6T  0 lvm  
│   ├─data--2-data--2           252:10   0   3.6T  1 lvm  
│   ├─data--2-vm--101--disk--0  252:11   0     8G  0 lvm  
│   ├─data--2-vm--103--disk--0  252:12   0    32G  0 lvm  
│   ├─data--2-vm--107--disk--0  252:13   0   500G  0 lvm  
│   └─data--2-vm--108--disk--0  252:20   0   100G  0 lvm  
└─data--2-data--2_tdata         252:6    0   3.6T  0 lvm  
  └─data--2-data--2-tpool       252:9    0   3.6T  0 lvm  
    ├─data--2-data--2           252:10   0   3.6T  1 lvm  
    ├─data--2-vm--101--disk--0  252:11   0     8G  0 lvm  
    ├─data--2-vm--103--disk--0  252:12   0    32G  0 lvm  
    ├─data--2-vm--107--disk--0  252:13   0   500G  0 lvm  
    └─data--2-vm--108--disk--0  252:20   0   100G  0 lvm  
sdb                               8:16   0 698.6G  0 disk 
└─sdb1                            8:17   0 698.6G  0 part /mnt/pve/backups
sdc                               8:32   0   3.6T  0 disk 
├─vm--data-vm--data_tmeta       252:4    0  15.9G  0 lvm  
│ └─vm--data-vm--data-tpool     252:14   0   3.6T  0 lvm  
│   ├─vm--data-vm--data         252:15   0   3.6T  1 lvm  
│   ├─vm--data-vm--100--disk--0 252:16   0   270G  0 lvm  
│   ├─vm--data-vm--102--disk--0 252:17   0   100G  0 lvm  
│   ├─vm--data-vm--104--disk--0 252:18   0    25G  0 lvm  
│   └─vm--data-vm--106--disk--0 252:19   0    32G  0 lvm  
└─vm--data-vm--data_tdata       252:7    0   3.6T  0 lvm  
  └─vm--data-vm--data-tpool     252:14   0   3.6T  0 lvm  
    ├─vm--data-vm--data         252:15   0   3.6T  1 lvm  
    ├─vm--data-vm--100--disk--0 252:16   0   270G  0 lvm  
    ├─vm--data-vm--102--disk--0 252:17   0   100G  0 lvm  
    ├─vm--data-vm--104--disk--0 252:18   0    25G  0 lvm  
    └─vm--data-vm--106--disk--0 252:19   0    32G  0 lvm  
sdd                               8:48   0 931.5G  0 disk 
├─sdd1                            8:49   0  1007K  0 part 
├─sdd2                            8:50   0     1G  0 part 
└─sdd3                            8:51   0 930.5G  0 part 
  ├─pve-swap                    252:0    0     8G  0 lvm  [SWAP]
  ├─pve-root                    252:1    0    96G  0 lvm  /
  ├─pve-data_tmeta              252:2    0   8.1G  0 lvm  
  │ └─pve-data                  252:8    0 794.3G  0 lvm  
  └─pve-data_tdata              252:5    0 794.3G  0 lvm  
    └─pve-data                  252:8    0 794.3G  0 lvm  
+++ exited with 0 +++

cat /proc/partitions

major minor  #blocks  name

   8        0 3907018584 sda
   8       16  732574584 sdb
   8       17  732572672 sdb1
   8       32 3907018584 sdc
   8       48  976762584 sdd
   8       49       1007 sdd1
   8       50    1048576 sdd2
   8       51  975712967 sdd3
 252        0    8388608 dm-0
 252        1  100663296 dm-1
 252        2    8495104 dm-2
 252        3   16650240 dm-3
 252        4   16650240 dm-4
 252        6 3873329152 dm-6
 252        5  832888832 dm-5
 252        7 3873329152 dm-7
 252        8  832888832 dm-8
 252        9 3873329152 dm-9
 252       10 3873329152 dm-10
 252       11    8388608 dm-11
 252       12   33554432 dm-12
 252       13  524288000 dm-13
 252       14 3873329152 dm-14
 252       15 3873329152 dm-15
 252       16  283115520 dm-16
 252       17  104857600 dm-17
 252       18   26214400 dm-18
 252       19   33554432 dm-19
 252       20  104857600 dm-20

Locate drive by serial and model information

hdparm -i /dev/sda

/dev/sda:

 Model=WDC WD4000FYYZ-05UL1B0, FwRev=00.0NS05, SerialNo=WD-WCC132262513
 Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=off
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=7814037168
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
 AdvancedPM=yes: unknown setting WriteCache=disabled
 Drive conforms to: Unspecified:  ATA/ATAPI-1,2,3,4,5,6,7

 * signifies the current active mode

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Screen recording can use webm as their format, it can be more simple to use a gif to embed into a website or forum, than adding scripts to host different video format.

In this case I grabbed a screen record of the progress for writing zeros to a hard drive with dd

Use ffmpeg to convert webm to gif:

First create a pallet:

Move into the directory which the webm is located, or type in the path

Where ‘dd.webm’ is the screen recording

ffmpeg -y -i dd.webm -vf palettegen palette.png

Output:

Then convert the webm to gif:

ffmpeg -y -i dd.webm -i palette.png -filter_complex paletteuse -r 10 dd.gif

This is what I ended up with, looks like any image of any alien on the interwebz, as if shot through a potato, some tweaking of the command is in my future. None the less.

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Write zeros to all sectors

Use the command ‘lsblk’ to find the drive you wish to erase

I’m using ‘dd’ to erase things

In this case I’m torching sdb

Only use status=progress if you care it’s not necessary

dd if=/dev/zero of=/dev/sdb bs=12M status=progress

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Remove old kernel images that are cluttering the system

Most of these errors are due to low or not enough space left in the root partition.

If you are using a Debian flavor:

sudo apt-get autoremove --purge

Inform grub whenever an old kernel is removed:

update-grub

Remove the un-used kernel config files:

These will be the files pre cursed as ‘rc’ where installed kernels use ‘ii’

… As well as files no longer used or required due to dependencies

This command will detect, print, and remove left over cruft from previously installed packages or scripts, that have been removed or updated.

sudo dpkg --purge $(dpkg -l | awk '/^rc/{print $2}')

You can re-run the following to view the installed kernel(s):

dpkg --list | grep linux-image

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New script due to dependency changes:

#! /bin/sh set -e

if [ “$1” = “install” ] || [ “$1” = “upgrade” ]; then

ACTION=$1

elif [ “$1” = “” ]; then ACTION=install else echo “usage: $(basename $0) action [source]” echo “action is either install (default) or upgrade” echo “source is either tar (default) or git” exit 1 fi

if [ “$2” = “git” ] || [ “$2” = “tar” ]; then SOURCE=$2 elif [ “$2” = “” ]; then SOURCE=tar else echo “Unknown source $2!” exit 1 fi

if [ “$BPC_UID” ] && [ $(getent passwd “$BPC_UID” | cut -d ‘:’ -f 1) != “backuppc” ]; then echo “The uid = $BPC_UID is already in use!” exit 1 fi

#Install dependencies

apt-get -q update export DEBIAN_FRONTEND=noninteractive apt-get install -q -y apache2 apache2-utils libapache2-mod-perl2 par2 perl smbclient rsync tar gcc zlib1g zlib1g-dev rrdtool git make perl-doc libarchive-zip-perl libfile-listing-perl libxml-rss-perl libcgi-session-perl libacl1-dev wget iputils-ping pwgen

#Set up backuppc user and directory

if ! id backuppc >/dev/null 2>&1; then if [ “$BPC_UID” ]; then adduser --system --home /var/lib/backuppc --group --disabled-password --shell /bin/false --uid=“$BPC_UID” backuppc else adduser --system --home /var/lib/backuppc --group --disabled-password --shell /bin/false backuppc fi fi mkdir -p /var/lib/backuppc/.ssh chmod 700 /var/lib/backuppc/.ssh echo -e “BatchMode yes\nStrictHostKeyChecking no” > /var/lib/backuppc/.ssh/config if [ ! -e /var/lib/backuppc/.ssh/id_rsa ]; then ssh-keygen -q -t rsa -b 4096 -N ‘’ -C “BackupPC key” -f /var/lib/backuppc/.ssh/id_rsa fi chmod 600 /var/lib/backuppc/.ssh/id_rsa chmod 644 /var/lib/backuppc/.ssh/id_rsa.pub chown -R backuppc:backuppc /var/lib/backuppc/.ssh

#Set password or read password file

if [ “$BPC_PASS” ]; then PASSWORD=“$BPC_PASS” elif [ -e /root/password ]; then PASSWORD=$(cat /root/password) chmod 600 /root/password else PASSWORD=$(pwgen -s -1 32) echo “$PASSWORD” > /root/password chmod 600 /root/password fi echo “backuppc:$PASSWORD” | chpasswd backuppc

#Get BackupPC release versions

get_latest_release() { wget -q -O - “https://api.github.com/repos/$1/releases/latest” | grep ‘“tag_name”:’ | sed -E ‘s/.“([^”]+)"./\1/’
} bpcver=$(get_latest_release “backuppc/backuppc”) bpcxsver=$(get_latest_release “backuppc/backuppc-xs”) rsyncbpcver=$(get_latest_release “backuppc/rsync-bpc”)

mkdir -p /tmp/bpc cd /tmp/bpc

if [ $SOURCE = “tar” ]; then

##Fetch and install latest stable releases

wget https://github.com/backuppc/backuppc-xs/releases/download/$bpcxsver/BackupPC-XS-$bpcxsver.tar.gz wget https://github.com/backuppc/rsync-bpc/releases/download/$rsyncbpcver/rsync-bpc-$rsyncbpcver.tar.gz wget https://github.com/backuppc/backuppc/releases/download/$bpcver/BackupPC-$bpcver.tar.gz tar -zxf BackupPC-XS-$bpcxsver.tar.gz tar -zxf rsync-bpc-$rsyncbpcver.tar.gz tar -zxf BackupPC-$bpcver.tar.gz cd BackupPC-XS-$bpcxsver perl Makefile.PL make make test make install cd …/rsync-bpc-$rsyncbpcver ./configure make make install cd …/BackupPC-$bpcver fi

if [ $SOURCE = “git” ]; then

#Fetch and install the latest development code instead

git clone https://github.com/backuppc/backuppc.git git clone https://github.com/backuppc/backuppc-xs.git git clone https://github.com/backuppc/rsync-bpc.git cd backuppc-xs perl Makefile.PL make make test make install cd …/rsync-bpc ./configure make make install cd …/backuppc ./makeDist --nosyntaxCheck --releasedate “date -u "+%d %b %Y"” --version ${bpcver}git tar -zxf dist/BackupPC-${bpcver}git.tar.gz cd BackupPC-${bpcver}git fi

if [ $ACTION = “install” ]; then ./configure.pl --batch --cgi-dir /var/www/cgi-bin/BackupPC --data-dir /var/lib/backuppc --hostname backuppc --html-dir /var/www/html/BackupPC --html-dir-url /BackupPC --install-dir /usr/local/BackupPC fi

if [ $ACTION = “upgrade” ]; then ./configure.pl --batch --config-path /etc/BackupPC/config.pl fi

#Set up web server #Note that changing the apache user and group (/etc/apache2/envvars) could cause other services #provided by apache to fail. There are alternatives if you don’t want to change the apache #user: use SCGI or a setuid BackupPC_Admin script - see the docs. cp httpd/BackupPC.conf /etc/apache2/conf-available/backuppc.conf sed -i “/Require local/d” /etc/apache2/conf-available/backuppc.conf sed -i “s/export APACHE_RUN_USER=www-data/export APACHE_RUN_USER=backuppc/” /etc/apache2/envvars sed -i “s/export APACHE_RUN_GROUP=www-data/export APACHE_RUN_GROUP=backuppc/” /etc/apache2/envvars echo ‘’ > /var/www/html/index.html a2enconf backuppc a2enmod cgid service apache2 restart

#Set up backuppc service

cp systemd/init.d/debian-backuppc /etc/init.d/backuppc

chmod 755 /etc/init.d/backuppc

update-rc.d backuppc defaults

chmod u-s /var/www/cgi-bin/BackupPC/BackupPC_Admin

touch /etc/BackupPC/BackupPC.users

sed -i “s/$Conf{CgiAdminUserGroup}.*/$Conf{CgiAdminUserGroup} = ‘backuppc’;/” /etc/BackupPC/config.pl

sed -i “s/$Conf{CgiAdminUsers}.*/$Conf{CgiAdminUsers} = ‘backuppc’;/” /etc/BackupPC/config.pl

chown -R backuppc:backuppc /etc/BackupPC

echo $PASSWORD | htpasswd -i /etc/BackupPC/BackupPC.users backuppc

service backuppc start

#Clean up

cd rm -rf /tmp/bpc echo “All done!” exit 0

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To list all files in current directory including dot files (hidden files or directories), as well as print permissions :

ls -la

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Install Ruby on Debian

Install rbenv

sudo apt install rbenv

Then initialize the environment:

rbenv init

nano ~/.bashrc

Type or paste the output above, Ctrl +x to save

Apply:

source .bashrc

Install ruby-build

Install git:

sudo apt install git

mkdir -p "$(rbenv root)"/plugins

Clone to local:

git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build

curl -fsSL https://github.com/rbenv/rbenv-installer/raw/main/bin/rbenv-doctor | bash

Now install Ruby:

print ruby versions available

rbenv install --list

Install the latest version unless you have a reason otherwise:

rbenv install 3.3.0

On this system there was an error compiling at this point with fiddle, as well as psych:

Therefore manually installing the following filled dependencies

sudo apt install libtool
sudo apt install libffi-dev

rbenv global 3.3.0

print installed ruby version

ruby -v

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Re: Set script to executable

755 - Owner has all permissions, and Group and Other can read and execute

700 - Owner has all permissions

644 - Owner can read and write, and Group and Other can read

600 - Owner can read and write

775 - Owner can read and write, and Group and Other can read

770 - Owner and Group have all, and Other can read and execute

750 - Owner has all permissions, and Group can read and execute

664 - Owner and Group can read and write, and Other can just read

660 - Owner and Group can read and write

640 - Owner can read and write, and Group can read

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Re: Find or Locate a file or extension command line

Install locate command linux: Use your sudo command!

apt install mlocate

OR:

apt-get install mlocate

OR:

yum install mlocate

Update the database:

updatedb

Depending on the size of the complete filesystem this could take a few minutes

After the database has been populated:

locate mariadb

Where mariadb is the word your looking for

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These commands are if you are in the scripts directory! Changing permissions can be done from anywhere in the structure.

Such as :

chmod +x /opt/so-elastic-agent_linux_amd64

Terminal chmod to executable :

Permissions prior to chmod :

chmod +x so-elastic-agent_linux_amd64

Permissions following chmod :

Then execute :

./so-elastic-agent_linux_amd64

Insure you are acting as the user you just gave permissions to (the file owner) or at least have sudo privileges

To make the script un-executable:

chmod -x so-elastic-agent_linux_amd64

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sudo apt install lsb-release ca-certificates curl -y

GPG key and repo for php 7.4

sudo curl -sSLo /usr/share/keyrings/deb.sury.org-php.gpg https://packages.sury.org/php/apt.gpg

sudo sh -c 'echo "deb [signed-by=/usr/share/keyrings/deb.sury.org-php.gpg] https://packages.sury.org/php/ $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list'

Update the system with the new repository in place

sudo apt update

Install the dependencies for OwnCloud (LAMP ect) Certbot, or LetsEncrypt is being installed as well, if you are using this installation in a public domain

sudo apt install apache2 mariadb-server imagemagick certbot python3-certbot-apache smbclient redis-server unzip rsync libapache2-mod-php7.4 php7.4 php7.4-intl php7.4-mysql php7.4-mbstring php7.4-imagick php7.4-igbinary php7.4-gmp php7.4-bcmath php7.4-curl php7.4-gd php7.4-zip php7.4-imap php7.4-ldap php7.4-bz2 php7.4-ssh2 php7.4-common php7.4-json php7.4-xml php7.4-dev php7.4-apcu php7.4-redis libsmbclient-dev php-pear php-phpseclib

Enable apache2 and then verify it’s status

sudo systemctl is-enabled apache2

sudo systemctl status apache2

Enable MariaDB and verify status

sudo systemctl is-enabled mariadb

sudo systemctl status mariadb

Enable Redis and verify status

sudo systemctl is-enabled redis

sudo systemctl status redis

Configure default php version

sudo update-alternatives --config php

Configure php OwnCloud dependencies

sudo update-alternatives --set phar /usr/bin/phar7.4

sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.4

sudo update-alternatives --set phpize /usr/bin/phpize7.4

sudo update-alternatives --set php-config /usr/bin/php-config7.4

Upgrade Pear to OwnCloud4 requirements

sudo mkdir -p /tmp/pear/cache

sudo pear upgrade --force --alldeps http://pear.php.net/get/PEAR-1.10.13

sudo pear clear-cache

sudo pear update-channels

sudo pear upgrade --force

sudo pear upgrade-all

Verify Pear version

pear version

Configure MariaDB

sudo mariadb-secure-installation

Log into MariaDB

sudo mariadb -u root -p

Create the OwnCloud database:

This is where many go wrong, we do not use ‘password’ we replace password, with our own password.

CREATE DATABASE owncloud;

We just created a database with the name owncloud

CREATE USER IF NOT EXISTS 'owncloud'@'localhost' IDENTIFIED BY 'password';

We just created a database user called owncloud

GRANT ALL PRIVILEGES ON owncloud.* TO 'owncloud'@'localhost' WITH GRANT OPTION;

We just allowed user owncloud, full privileges on database owncloud

FLUSH PRIVILEGES;

Now verify what we have just done:

SHOW GRANTS FOR 'owncloud'@'localhost';

You can see below I named this database ‘oc’ and the ‘oc’ user has privileges on database ‘owncloud’

quit;

wget the OwnCloud source

cd /var/www

wget https://download.owncloud.com/server/stable/owncloud-complete-latest.tar.bz2

Grab sha256 to verify the download

wget https://download.owncloud.com/server/stable/owncloud-complete-latest.tar.bz2.sha256

BEFORE installing, verify if the download of OwnCloud matches what the OwnCloud team wanted you to have, this is important always.

sudo sha256sum -c owncloud-complete-latest.tar.bz2.sha256 < owncloud-complete-latest.tar.bz2

Out put should say ‘OK’ if everything matches.

Change ownership of the directory to www-data user.

sudo chown -R www-data:www-data /var/www/owncloud

Configure Vhost for OwnCloud

This will open a new file in 'sites-available and name this file ‘owncloud.conf’

Change the ServerName and ServerAlias, as well as log file names, to whatever your domain is. There are many ways to do this keep in mind.

sudo nano /etc/apache2/sites-available/owncloud.conf

<VirtualHost *:80>
  ServerName oc
  ServerAlias www.oc

  DocumentRoot /var/www/owncloud
  
  ErrorLog ${APACHE_LOG_DIR}/oc.io-error.log
  CustomLog ${APACHE_LOG_DIR}/oc.io-access.log combined

  Alias /owncloud "/var/www/owncloud/"

  <Directory /var/www/owncloud/>
    Options +FollowSymlinks
    AllowOverride All

    <IfModule mod_dav.c>
    Dav off
    </IfModule>

    SetEnv HOME /var/www/owncloud
    SetEnv HTTP_HOME /var/www/owncloud

  </Directory>
 
</VirtualHost>

Enable and verify the owncloud vhost

sudo a2ensite owncloud.conf

sudo apachectl configtest

Now install OwnCloud

Change the database name, user, and password to whatever you named the OwnCloud database earlier;

Change the ‘admin user’ and ‘admin pass’ to whatever you want the new OwnCloud admin account to be.

sudo -u www-data /var/www/owncloud/occ maintenance:install \
   --database "mysql" \
   --database-name "owncloud" \
   --database-user "owncloud"\
   --database-pass "password" \
   --admin-user "admin" \
   --admin-pass "your new owncloud admin password"

Edit the OwnCloud config file to add the domain you used earlier in the Apache2 vhost file:

sudo nano /var/www/owncloud/config/config.php

'trusted_domains' =>
  array (
    0 => 'localhost',
    1 => 'whatever your domain is goes here',
  ),

Personally I restart the server at this point, which will restart all services. Then visit the domain / IP of your settings and you should see the OwnCloud login page. Use the credentials you setup for the admin user.

System cron setting:

sudo crontab -u www-data -e

*/15  *  *  *  * /usr/bin/php -f /var/www/owncloud/occ system:cron

Memcache with Redis we installed earlier:

sudo nano /var/www/owncloud/config/config.php

    'filelocking.enabled' => true,
    'memcache.local' => '\OC\Memcache\APCu',
    'memcache.locking' => '\OC\Memcache\Redis',
    'redis' => [
        'host' => 'localhost',
        'port' => 6379,
    ],

Go restart the server again and enjoy!

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Comment out in=>

/usr/lib/python3/dist-packages/middlewared/plugins/vm/vms.py

# elif flags['intel_vmx']:
# if vcpus > 1 and flags['unrestricted_guest'] is False:
# verrors.add(f'{schema_name}.vcpus', 'Only one Virtual CPU is allowed in this system.')
# elif flags['amd_rvi']:
# if vcpus > 1 and flags['amd_asids'] is False:
# verrors.add(
# f'{schema_name}.vcpus', 'Only one virtual CPU is allowed in this system.'
# )

At this point we must comment out each time we update the system.

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dmidecode -t processor

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dmidecode

Type   Information
     --------------------------------------------
        0   BIOS
        1   System
        2   Baseboard
        3   Chassis
        4   Processor
        5   Memory Controller
        6   Memory Module
        7   Cache
        8   Port Connector
        9   System Slots
       10   On Board Devices
       11   OEM Strings
       12   System Configuration Options
       13   BIOS Language
       14   Group Associations
       15   System Event Log
       16   Physical Memory Array
       17   Memory Device
       18   32-bit Memory Error
       19   Memory Array Mapped Address
       20   Memory Device Mapped Address
       21   Built-in Pointing Device
       22   Portable Battery
       23   System Reset
       24   Hardware Security
       25   System Power Controls
       26   Voltage Probe
       27   Cooling Device
       28   Temperature Probe
       29   Electrical Current Probe
       30   Out-of-band Remote Access31   Boot Integrity Services
       32   System Boot
       33   64-bit Memory Error
       34   Management Device
       35   Management Device Component
       36   Management Device Threshold Data
       37   Memory Channel
       38   IPMI Device
       39   Power Supply
       40   Additional Information
       41   Onboard Devices Extended Information
       42   Management Controller Host Interface

 Keyword     Types
       ------------------------------
       bios        0, 13
       system      1, 12, 15, 23, 32
       baseboard   2, 10, 41
       chassis     3
       processor   4
       memory      5, 6, 16, 17
       cache       7
       connector   8
       slot        9

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Install Ruby on Debian