Difference between pages "Initramfs" and "Package:Irssi"

(Difference between pages)
m (Duncan.britton moved page Initramfs to Initramfsmove)
 
 
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== What is initramfs? ==
+
{{Ebuild
[http://en.wikipedia.org/wiki/Initramfs Wikipedia] defines initramfs as:
+
|Summary=A modular textUI IRC client with IPv6 support.
<blockquote>
+
|CatPkg=net-irc/irssi
initramfs, abbreviated from "initial ram file system", is the successor of initrd. It is a cpio archive of the initial file system that gets loaded into memory during the Linux startup process. The Linux kernel mounts it as root file system and starts the init process from it. This will complete certain tasks before the real root file system is loaded; thus, initramfs needs to contain all of the device drivers and tools needed to mount the real root filesystem.
+
|Maintainer=
</blockquote>
+
|Homepage=http://www.irssi.org/
 
+
}}
== Do I need an initramfs? ==
+
The reason to build a kernel with an initramfs is mostly for interoperability (e.g. live-cd's) and special features like an included busybox, ssh, etc. But mostly, and that's why we are doing this here now, to have a proper kernel up and running quick'n dirty in a reasonable time without fighting hours and days until a more or less exotic hardware is perfectly run by the kernel. After having a proper basic kernel running with the help of an initramfs, I really recommend you to go a step further and build a true kernel with all features includes without an initramfs. However, relying only on a kernel to boot a system can be quite time consuming, so we have provided several initramfs options for Funtoo. If you have decided to use an initramfs, not just a kernel, check out the options below and choose the one that you like the most.
+
  
== better-initramfs ==
+
=== Description ===
Piotr's better-initramfs is a popular approach among Funtoo'ers to building an initramfs. It is quick, nice, and shiny. The biggest plus is that, once built, it is kernel version independent.  
+
irssi is a small command line IRC client based on ncurses. It's a great thing to use when you SSH into a server, or just simply for your main IRC client.  
  
 
=== Installation ===
 
=== Installation ===
To install better-initramfs on your system, change to the <code>/opt</code> directory (or any other directory that you deem suitable) and clone the better-initramfs repository from bitbucket.
+
The install of irssi is pretty straight forward. There are not many USE flags, but one that is worth looking at is the {{c|SSL}} flag. This enables you to use SSL when connecting to servers.  
<console>
+
{{console|body=
###i## cd /opt
+
###i## echo "net-irc/irssi ssl" >> /etc/portage/package.use
###i## git clone https://bitbucket.org/piotrkarbowski/better-initramfs.git
+
###i## emerge irssi
</console>
+
 
+
=== Building <code>/initramfs.cpio.gz</code> ===
+
Now that you have better-initramfs on your system, we can make the <code>initramfs.cpio.gz</code> image and move it to <code>/boot</code>.
+
{{fancynote| do not run <code>make prepare</code> or <code>make image</code> until you have configured your kernel. If you have not installed / configured a kernel yet, check out: [[Building_a_Kernel_from_Source| Building a Kernel From Source]] and [[Funtoo_Linux_Kernels| Funtoo Linux Kernels]].}}
+
<console>
+
###i## cd better-initramfs
+
###i## bootstrap/bootstrap-all
+
###i## make prepare
+
###i## make image
+
###i## cp output/initramfs.cpio.gz /boot
+
</console>
+
 
+
=== Configuring <code>/etc/boot.conf</code> ===
+
Now that the <code>initramfs.cpio.gz</code> file is in <code>/boot</code>, we can configure what we want the initramfs to do for us when the system boots. Below is a table of options that better-initramfs supports (from [https://bitbucket.org/piotrkarbowski/better-initramfs better-initramfs Bitbucket page]):
+
==== Options ====
+
{| {{table}}
+
!Option
+
!Description
+
|-
+
|rescueshell
+
|Drop to the rescueshell before mounting rootfs to <code>/newroot</code>
+
|-
+
|sshd
+
|Run the sshd server when the initramfs loads. This allows you to ssh into your initramfs to fix any errors that may have occurred while booting.  
+
|-
+
|sshd_wait=x
+
|Wait x number of seconds after starting sshd to continue booting the system.
+
|-
+
|sshd_port=x
+
|Change the port that sshd "listens" on. The default port for sshd is port 22.
+
|-
+
|binit_net_if=interface
+
|Choose which interface the network should be configured on. For example: wlan0, eth0, etc.
+
|-
+
|binit_net_addr=<ipaddr/cidr>
+
|Configure <code>ipaddr</code> with <code>cidr</code> netmask. For example: <code>11.11.11.2/24</code>. If you do not add a netmask, the netmask is assumed to be 32. Furthermore, you will have to configure <code>binit_net_gw</code>.
+
|-
+
|binit_net_gw=ipaddr
+
|The address of your gateway. Only needed if you want to connect to WAN.
+
|-
+
|rw
+
|Mount the rootfs as read-write. By default, the rootfs is mounted as read only.
+
|-
+
|mdev
+
|Use mdev instead of devtmpfs. This option can prove handy on older kernels.
+
|-
+
|softraid
+
|Detect and run RAID arrays.
+
|-
+
|init=
+
|Change the init system. For example, if you are using systemd, change this to <code>/usr/lib/systemd/systemd</code>. The default for this option (<code>/sbin/init</code>) will work fine with OpenRC.
+
|-
+
|tuxonice
+
|Try resuming with TuxOnIce.
+
|-
+
|uswsusp
+
|Try resuming the system with userspace software suspend. This depends on the <code>resume</code> option.
+
|-
+
|swsusp
+
|Try resuming the system with in-kernel suspend. This depends on the <code>resume</code> option.
+
|-
+
|resume=<device/path>
+
|Specify the device and path from which you want to resume.
+
|-
+
|lvm
+
|Scan for volume groups. If any are found, activate them.
+
|-
+
|luks
+
|Run <code>cryptsetup luksOpen</code> on the <code>enc_root</code> variable.
+
|-
+
|luks_trim
+
|Enable support for TRIM on your LUKS encrypted root device. This option is very helpful for those using SSDs.
+
|-
+
|enc_root=<device>
+
|The device that you wish to decrypt using <code>cryptsetup luksOpen</code>.
+
|-
+
|root=<device>
+
|The name of your root device.
+
|-
+
|rootfstype=<fstype>
+
|Specify the type of filesystem that your rootfs uses.
+
|-
+
|rootdelay=<time (as integer)>
+
|How long the initramfs should wait before attempting to mount devices.
+
|-
+
|rootflags=x
+
|Pass x flags to <code>mount</code> as it mounts your rootfs.
+
|}
+
 
+
==== Examples ====
+
Below are examples of different use cases for better-initramfs and how your <code>/etc/boot.conf</code> should be configured for them.
+
{{fancynote| Realize that your <code>enc_root</code>, <code>root</code>, and <code>rootfstype</code> variables may be different from the examples provided below.}}
+
 
+
==== Regular ext4 root ====
+
{{file|name=/etc/boot.conf|desc= |body=
+
"Funtoo Linux" {
+
kernel vmlinuz[-v]
+
initrd /initramfs.cpio.gz
+
params += root=/dev/sdaX rootfstype=ext4
+
}
+
 
}}
 
}}
 +
=== Using irssi ===
 +
Using irssi initially can be a little intimidating if you're not used to command line programs. To first start irssi, you just simply run:
 +
{{console|body=
 +
$ ##i##irssi
 +
}}
 +
There are flags you can pass to the command line while starting irssi, such as:
 +
{{console|body=
 +
$ ##i##irssi -n mynick -c irc.freenode.org
 +
}}
 +
This would connect you to Freenode with the nick 'mynick'. Or alternatively you can just run the {{c|irssi}} command and connect via SSL if you need to:
 +
{{file|body=
 +
/connect -ssl irc.freenode.org
 +
}}
 +
This will automatically connect you over port 6697.
  
==== Encrypted root with lvm ====
+
When you have connected to the server of your choice, you can join a channel simply by:
{{file|name=/etc/boot.conf|desc= |body=
+
{{file|body=
"Funtoo Linux" {
+
/j #funtoo
kernel vmlinuz[-v]
+
initrd /initramfs.cpio.gz
+
params += enc_root=/dev/sdaX lvm luks luks_trim root=/dev/mapper/funtoo--vg-root rootfstype=ext4
+
}
+
 
}}
 
}}
 +
If you want to leave any channel you've entered you can use the {{c|part}} command:
 +
{{file|body=
 +
/part #funtoo reasons...
 +
}}
 +
There are a few ways of navigating through your channels, you can use {{c|alt+<nowiki>{1-9}{q-p}</nowiki>}}, or alternatively you can use the {{c|window}} command that is in irssi:
 +
{{file|body=
 +
/window 1
 +
/window 2
 +
/window 3
 +
}}
 +
For as many channels you are apart of.
  
==== Encrypted root with lvm and RAID ====
+
When you're ready to leave, you can simply type in:
{{file|name=/etc/boot.conf|desc= |body=
+
{{file|body=
"Funtoo Linux" {
+
/exit
kernel vmlinuz[-v]
+
initrd /initramfs.cpio.gz
+
params += enc_root=/dev/md0 lvm luks luks_trim softraid root=/dev/mapper/funtoo--vg-root rootfstype=ext4
+
}
+
 
}}
 
}}
 +
Which will close out connections to the IRC networks you've joined, and take you back to your console window.
 +
=== Themes and scripts ===
 +
==== Scripts ====
 +
There are a few things you can do to make irssi look a little bit better and add some cool features. There are a few plugins that are pretty useful, such as {{c|fnotify.pl}} which is a script that utilizes {{f|libnotify}} to send you popup notifications for when your nick is pinged or you are sent a private message.
  
== Dracut ==
+
{{file|name=fnotify.pl|lang=perl|desc=fnotify.pl|body=
=== Installation ===
+
# todo: grap topic changes
To install Dracut, simply emerge it:
+
<console>
+
###i## emerge dracut
+
</console>
+
  
=== Build the initramfs ===
+
use strict;
To build the initrd with dracut, we just execute:
+
use vars qw($VERSION %IRSSI);
<console>
+
###i## dracut -f --fstab --xz /boot/initramfs-3.2.6-pf.img  3.2.6-pf
+
</console>
+
  
Generally, this should be enough!
+
use Irssi;
If you experience booting problems like missing modules / drivers then just boot from your livecd and fix Dracut or consider changing to another initramfs. You can look into the man page to tweak the command a bit (e.g. --add-drivers "xz dm_crypt" etc...).
+
$VERSION = '0.0.3';
 +
%IRSSI = (
 +
authors    => 'Thorsten Leemhuis',
 +
contact    => 'fedora@leemhuis.info',
 +
name        => 'fnotify',
 +
description => 'Write a notification to a file that shows who is talking to you in which channel.',
 +
url        => 'http://www.leemhuis.info/files/fnotify/',
 +
license    => 'GNU General Public License',
 +
changed    => '$Date: 2007-01-13 12:00:00 +0100 (Sat, 13 Jan 2007) $'
 +
);
  
=== Configuring <code>/etc/boot.conf</code> ===
+
#--------------------------------------------------------------------
==== Examples ====
+
# In parts based on knotify.pl 0.1.1 by Hugo Haas
 +
# http://larve.net/people/hugo/2005/01/knotify.pl
 +
# which is based on osd.pl 0.3.3 by Jeroen Coekaerts, Koenraad Heijlen
 +
# http://www.irssi.org/scripts/scripts/osd.pl
 +
#
 +
# Other parts based on notify.pl from Luke Macken
 +
# http://fedora.feedjack.org/user/918/
 +
#
 +
#--------------------------------------------------------------------
  
==== Encrypted root with lvm ====
+
#--------------------------------------------------------------------
{{file|name=/etc/boot.conf|desc= |body=
+
# Private message parsing
boot {
+
#--------------------------------------------------------------------
        generate grub
+
 
        default "Funtoo Linux dracut"
+
sub priv_msg {
        timeout 3
+
my ($server,$msg,$nick,$address,$target) = @_;
 +
filewrite($nick." " .$msg );
 
}
 
}
  
"Funtoo Linux dracut" {
+
#--------------------------------------------------------------------
        kernel vmlinuz[-v]
+
# Printing hilight's
        initrd initramfs[-v].img
+
#--------------------------------------------------------------------
        params  = quiet rootfstype=ext4
+
 
        params += luks enc_root=/dev/sda3
+
sub hilight {
        params += lvm root=/dev/mapper/vg-root
+
    my ($dest, $text, $stripped) = @_;
 +
    if ($dest->{level} & MSGLEVEL_HILIGHT) {
 +
filewrite($dest->{target}. " " .$stripped );
 +
    }
 
}
 
}
 +
 +
#--------------------------------------------------------------------
 +
# The actual printing
 +
#--------------------------------------------------------------------
 +
 +
sub filewrite {
 +
my ($text) = @_;
 +
# FIXME: there is probably a better way to get the irssi-dir...
 +
        open(FILE,">>$ENV{HOME}/.irssi/fnotify");
 +
print FILE $text . "\n";
 +
        close (FILE);
 +
}
 +
 +
Irssi::signal_add_last("message private", "priv_msg");
 +
Irssi::signal_add_last("print text", "hilight");
 +
 +
#- end
 
}}
 
}}
[[Category:Kernel]]
+
Another very useful script is for colored nicks, to better tell people apart. Which can be found at [http://scripts.irssi.org irssi scripts] called {{f|nickcolor.pl}}. 
 +
 
 +
When you have the scripts you would like you would put them into {{f|~/.irssi/scripts}} and set a link to {{f|~/.irssi/scripts/autorun}}.
 +
{{console|body=
 +
$ ##i##wget -O ~/.irssi/scripts/nickcolor.pl http://scripts.irssi.org/scripts/nickcolor.pl
 +
$ ##i##cd ~/.irssi/scripts/autorun
 +
$ ##i##ln -s ~/.irssi/scripts/nickcolor.pl .
 +
$ ##i##ln -s ~/.irssi/scripts/fnotify.pl .
 +
}}
 +
You can do this for as many scripts as you've chosen to use. They will automatically load when you start irssi. You can also manually load scripts:
 +
{{file|body=
 +
/load ~/.irssi/scripts/fnotify.pl
 +
Irssi: Loaded script fnotify
 +
}}
 +
Whichever works best for you is what you should do.
 +
==== Themes ====
 +
You can choose from many themes on the [http://irssi.org/themes irssi themes] page if you don't like the default look of it. Once you've chosen the them you like, you can simply put it in your {{f|~/.irssi/}} directory and when you run just run:
 +
{{file|body=
 +
/set theme mycooltheme
 +
}}
 +
And there you have it, the theme you have chosen is now there.
 +
=== Conclusion ===
 +
irssi is a great IRC client, and really helpful if you spend a lot of time in a terminal emulator or on a server.
 +
 
 +
== External Resources ==
 +
[http://www.irssi.org/documentation Further documentation]
 +
 
 +
{{EbuildFooter}}
 +
[[Category:IRC]]

Revision as of 07:49, January 22, 2015

net-irc/irssi


Source Repository:Gentoo Portage Tree
Homepage

Summary: A modular textUI IRC client with IPv6 support.

Use Flags

proxy
Adds support for a loadable IRC proxy module

News

Drobbins

RSS/Atom Support

You can now follow this news feed at http://www.funtoo.org/news/atom.xml .
10 February 2015 by Drobbins
Drobbins

Creating a Friendly Funtoo Culture

This news item details some recent steps that have been taken to help ensure that Funtoo is a friendly and welcoming place for our users.
2 February 2015 by Drobbins
Mgorny

CPU FLAGS X86

CPU_FLAGS_X86 are being introduced to group together USE flags managing CPU instruction sets.
31 January 2015 by Mgorny
View More News...

Irssi

Tip

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Description

irssi is a small command line IRC client based on ncurses. It's a great thing to use when you SSH into a server, or just simply for your main IRC client.

Installation

The install of irssi is pretty straight forward. There are not many USE flags, but one that is worth looking at is the SSL flag. This enables you to use SSL when connecting to servers.

# echo "net-irc/irssi ssl" >> /etc/portage/package.use
# emerge irssi

Using irssi

Using irssi initially can be a little intimidating if you're not used to command line programs. To first start irssi, you just simply run:

$ irssi

There are flags you can pass to the command line while starting irssi, such as:

$ irssi -n mynick -c irc.freenode.org

This would connect you to Freenode with the nick 'mynick'. Or alternatively you can just run the irssi command and connect via SSL if you need to:

/connect -ssl irc.freenode.org

This will automatically connect you over port 6697.

When you have connected to the server of your choice, you can join a channel simply by:

/j #funtoo

If you want to leave any channel you've entered you can use the part command:

/part #funtoo reasons...

There are a few ways of navigating through your channels, you can use alt+{1-9}{q-p}, or alternatively you can use the window command that is in irssi:

/window 1
/window 2
/window 3

For as many channels you are apart of.

When you're ready to leave, you can simply type in:

/exit

Which will close out connections to the IRC networks you've joined, and take you back to your console window.

Themes and scripts

Scripts

There are a few things you can do to make irssi look a little bit better and add some cool features. There are a few plugins that are pretty useful, such as fnotify.pl which is a script that utilizes libnotify to send you popup notifications for when your nick is pinged or you are sent a private message.

fnotify.pl (perl source code) - fnotify.pl
# todo: grap topic changes
 
use strict;
use vars qw($VERSION %IRSSI);
 
use Irssi;
$VERSION = '0.0.3';
%IRSSI = (
	authors     => 'Thorsten Leemhuis',
	contact     => 'fedora@leemhuis.info',
	name        => 'fnotify',
	description => 'Write a notification to a file that shows who is talking to you in which channel.',
	url         => 'http://www.leemhuis.info/files/fnotify/',
	license     => 'GNU General Public License',
	changed     => '$Date: 2007-01-13 12:00:00 +0100 (Sat, 13 Jan 2007) $'
);
 
#--------------------------------------------------------------------
# In parts based on knotify.pl 0.1.1 by Hugo Haas
# http://larve.net/people/hugo/2005/01/knotify.pl
# which is based on osd.pl 0.3.3 by Jeroen Coekaerts, Koenraad Heijlen
# http://www.irssi.org/scripts/scripts/osd.pl
#
# Other parts based on notify.pl from Luke Macken
# http://fedora.feedjack.org/user/918/
#
#--------------------------------------------------------------------
 
#--------------------------------------------------------------------
# Private message parsing
#--------------------------------------------------------------------
 
sub priv_msg {
	my ($server,$msg,$nick,$address,$target) = @_;
	filewrite($nick." " .$msg );
}
 
#--------------------------------------------------------------------
# Printing hilight's
#--------------------------------------------------------------------
 
sub hilight {
    my ($dest, $text, $stripped) = @_;
    if ($dest->{level} & MSGLEVEL_HILIGHT) {
	filewrite($dest->{target}. " " .$stripped );
    }
}
 
#--------------------------------------------------------------------
# The actual printing
#--------------------------------------------------------------------
 
sub filewrite {
	my ($text) = @_;
	# FIXME: there is probably a better way to get the irssi-dir...
        open(FILE,">>$ENV{HOME}/.irssi/fnotify");
	print FILE $text . "\n";
        close (FILE);
}
 
Irssi::signal_add_last("message private", "priv_msg");
Irssi::signal_add_last("print text", "hilight");
 
#- end

Another very useful script is for colored nicks, to better tell people apart. Which can be found at irssi scripts called nickcolor.pl.

When you have the scripts you would like you would put them into ~/.irssi/scripts and set a link to ~/.irssi/scripts/autorun.

$ wget -O ~/.irssi/scripts/nickcolor.pl http://scripts.irssi.org/scripts/nickcolor.pl
$ cd ~/.irssi/scripts/autorun
$ ln -s ~/.irssi/scripts/nickcolor.pl .
$ ln -s ~/.irssi/scripts/fnotify.pl .

You can do this for as many scripts as you've chosen to use. They will automatically load when you start irssi. You can also manually load scripts:

/load ~/.irssi/scripts/fnotify.pl
Irssi: Loaded script fnotify

Whichever works best for you is what you should do.

Themes

You can choose from many themes on the irssi themes page if you don't like the default look of it. Once you've chosen the them you like, you can simply put it in your ~/.irssi/ directory and when you run just run:

/set theme mycooltheme

And there you have it, the theme you have chosen is now there.

Conclusion

irssi is a great IRC client, and really helpful if you spend a lot of time in a terminal emulator or on a server.

External Resources

Further documentation