Computers

I swear there's a command to print out only an ebuild's ELOG statement (the part that comes after an install, sometimes with vital instructions) - but I can never remember it, or find it.

Sigh.

But I just came across the ELOG viewer - let's install:

# emerge -av app-portage/elogv

and since I had already set up emerge logs, I'm ready to go:

# elogv

Very nice console output showing a sorted window of logs, and the other half of the console has the output from the selected log. Works great!

Having the shell complete certain commands is handy, but I didn't realize I needed to explicitely enable it with Gentoo.

My latest installation had this at the end:

*
* Versions of bash-completion prior to 20060301-r1 required each user to
* explicitly source /etc/profile.d/bash-completion in ~/.bashrc. This
* was inconsistent with the completion modules which are
* enabled with eselect bashcomp. Now any user can enable the base
* completions without editing their .bashrc by running
*
* eselect bashcomp enable base
*
* The system administrator can also be enable this globally with
*
* eselect bashcomp enable --global base
*
* Additional completion functions can also be enabled or
* disabled using eselect's bashcomp module.
*
* If you use non-login shells you still need to source
* /etc/profile.d/bash-completion.sh in your ~/.bashrc.
* Note this is bash-completion.sh, not bash-completion. Lots of people
* overlook this

Following the suggestion to enable 'base' for all users:

# eselect bashcomp enable --global base

Then, following the other instruction, I looked at the .bashrc :

# cat ~/.bashrc
[[ -f /etc/profile.d/bash-completion ]] && source /etc/profile.d/bash-completion

# Midnight Commander chdir enhancement
if [ -f /usr/share/mc/mc.gentoo ]; then
. /usr/share/mc/mc.gentoo
fi

Huh - just like the instructions said, there is no '/etc/profile.d/bash-completion' file, but their is a '/etc/profile.d/bash-completion.sh' file, so I need to modify that now :

# nano ~/.bashrc

- added in the '.sh' - as occasionally I do use non-login shells.

Then looking at what options are available and selected for bashcompletion

# eselect bashcomp list
Available completions:
[1] _subversion
[2] apache2ctl
[3] base
[4] bitkeeper
[5] bittorrent
[6] cksfv
[7] clisp
[8] cowsay *
[9] django
[10] dsniff
[11] eselect
[12] freeciv
[13] gcl
[14] gentoo
[15] git
[16] gkrellm
[17] gnatmake
[18] gpg2
[19] harbour
[20] isql
[21] larch
[22] lilypond
[23] lisp
[24] mailman
[25] mcrypt
[26] modules
[27] monodevelop
[28] mtx
[29] p4
[30] povray
[31] qdbus
[32] ri
[33] rkhunter *
[34] sbcl
[35] sitecopy
[36] snownews
[37] ssh
[38] subversion
[39] tree *
[40] unace
[41] unrar
[42] vim *
[43] xxd

Looking at these, I'd definately want 'base', 'gentoo' and 'eselect' going, and whatever else looks interesting - subversion, ssh, eix, genlop,.

Looking at another server, I saw this:

# eselect bashcomp list
Available completions:
[1] cowsay *
[2] eselect *
[3] genlop *
[4] git
[5] subversion

Hmm a very short list - I didn't have 'bash-completion' installed, although the USE flag had been set - better install it now:

# emerge -pv app-shells/gentoo-bashcomp

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild N ] app-shells/bash-completion-20081219-r1 90 kB
[ebuild N ] app-shells/gentoo-bashcomp-20050516 20 kB

Total: 2 packages (2 new), Size of downloads: 109 kB

# emerge -av app-shells/gentoo-bashcomp

Now my 'eselect bashcomp list' command results look better.

To immediately get the bash-completion going, simply run it:

# /etc/profile.d/bash-completion.sh

(This worked in one session, but not the other - you may have to start a new terminal session to get this going properly.)

Now I get great autocompletion for 'emerge' and many other commands:

# emerge [hit 'TAB' key after typing in a space after 'emerge']
Display all 162 possibilities? (y or n) y
app-accessibility/ app-xemacs/ dev-tinyos/ gpe-base/ net-im/ sci-electronics/ world
app-admin/ clean dev-util/ inject net-irc/ sci-geosciences/ www-apache/
app-antivirus/ depclean games-action/ java-virtuals/ net-libs/ sci-libs/ www-apps/
app-arch/ dev-ada/ games-arcade/ kde-base/ net-mail/ sci-mathematics/ www-client/
app-backup/ dev-cpp/ games-board/ kde-misc/ net-misc/ sci-misc/ www-misc/
app-benchmarks/ dev-db/ games-emulation/ lxde-base/ net-nds/ sci-physics/ www-servers/
app-cdr/ dev-dotnet/ games-engines/ mail-client/ net-news/ sci-visualization/ x11-apps/
app-crypt/ dev-embedded/ games-fps/ mail-filter/ net-nntp/ search x11-base/
app-dicts/ dev-games/ games-kids/ mail-mta/ net-p2p/ sec-policy/ x11-drivers/
app-doc/ dev-haskell/ games-misc/ media-fonts/ net-print/ sync x11-libs/
app-editors/ dev-java/ games-mud/ media-gfx/ net-proxy/ sys-apps/ x11-misc/
app-emacs/ dev-lang/ games-puzzle/ media-libs/ net-voip/ sys-auth/ x11-plugins/
app-emulation/ dev-libs/ games-roguelike/ media-plugins/ net-wireless/ sys-block/ x11-proto/
app-forensics/ dev-lisp/ games-rpg/ media-radio/ net-www/ sys-boot/ x11-terms/
app-i18n/ dev-ml/ games-server/ media-sound/ net-zope/ sys-cluster/ x11-themes/
app-laptop/ dev-perl/ games-simulation/ media-tv/ perl-core/ sys-devel/ x11-wm/
app-misc/ dev-php/ games-sports/ media-video/ prune sys-freebsd/ xfce-base/
app-mobilephone/ dev-php5/ games-strategy/ metadata regen sys-fs/ xfce-extra/
app-office/ dev-python/ games-util/ net-analyzer/ rox-base/ sys-kernel/
app-pda/ dev-ruby/ gnome-base/ net-dialup/ rox-extra/ sys-libs/
app-portage/ dev-scheme/ gnome-extra/ net-dns/ sci-astronomy/ sys-power/
app-shells/ dev-tcltk/ gnustep-apps/ net-firewall/ sci-biology/ sys-process/
app-text/ dev-tex/ gnustep-base/ net-fs/ sci-calculators/ system
app-vim/ dev-texlive/ gnustep-libs/ net-ftp/ sci-chemistry/ unmerge

# emerge -av web [hit 'TAB' key after typing in 'web']
webalizer webcomics-collector webgen webkit-sharp webob webtest
webapp-config webcpp webgraph weblint webpy webut
webby-fonts webfs webhelpers webmin webscarab
webcdwriter webfuzzer webkit-gtk webmo websvn

# emerge -av www-apache/ [hit 'TAB' key after typing in 'www-apache/']
anyterm mod_auth_pgsql mod_diagnostics mod_layout mod_perl mod_tidy
libapreq2 mod_auth_tkt mod_dnsbl_lookup mod_ldap_userdir mod_proxy_html mod_transform
mod_access_dnsbl mod_authn_pam mod_dnssd mod_limitipconn mod_python mod_umask
mod_ap2_snmp mod_authnz_external mod_evasive mod_lisp2 mod_roaming mod_vdbh
mod_auth_cookie_mysql2 mod_backtrace mod_extract_forwarded mod_loadavg mod_rpaf mod_vhost_ldap
mod_auth_imap2 mod_bw mod_fastcgi mod_log_rotate mod_ruby mod_vhs
mod_auth_kerb mod_caucho mod_fcgid mod_log_sql mod_scgi mod_watch
mod_auth_mysql mod_cband mod_flvx mod_loopback mod_security mod_whatkilledus
mod_auth_nufw mod_chroot mod_ftpd mod_macro mod_spin mod_wsgi
mod_auth_openid mod_cplusplus mod_gnutls mod_mono mod_suphp passenger
mod_auth_pam mod_depends mod_jk mod_pcgi2 mod_tcl pwauth

Woohoo - looks good and will be very handy in the long run.

Some handy sites I found along the way:

http://blog.andreaolivato.net/tag/bash
http://blog.ibao.net/linux/2005/08/30/bash-completion-in-gentoo/
http://ben.liveforge.org/gentoo-features

which were all blogs - looks like blogs are becoming the best places to go for small howto's and general answers - good work everyone ;D

QuickList: Kernel Upgrade for Gentoo

# uname -a
Linux mythtv 2.6.23-gentoo #2 PREEMPT Tue Oct 23 12:57:42 PDT 2007 i686 Intel(R) Celeron(TM) CPU 1300MHz GenuineIntel GNU/Linux

# eselect kernel list

# eselect kernel set 4

# cd /usr/src/linux

[copy over your previous .config file from the previous kernel compile ]

# cp /usr/src/linux-2.6.23-gentoo-r2/.config

# make oldconfig && make prepare

[ answer all questions using default ]

# lspci

# cat /proc/cpuinfo

# make menuconfig

[ answer all questions using known hardware values from lspci and cpuinfo ]

# make

# make modules_install

# mount /boot

# cp arch/i386/boot/bzimage /boot/kernel-2.6.25-r8-2008-09-19

(these next two are optional - .config stores the options used to create the kernel, and System.map stores the hardware info (?) )

# cp .config /boot/config-2008-09-19

# cp System.map /boot/system-2008-09-19

# nano /boot/grub/grub.conf

[add in an entry near the top pointing to the new kernel file, using a previous entry]

# reboot

Today was interesting - I fixed a b2evolution blog on another server. It seems that someone in my Shaw Home account IP Address range had been sending out a lot of Spam or some such, and so my Shaw Home Account IP range was on a blacklist - what fun! Even better - since my b2evolution blog software came with the DNSBL Antispam blacklisting service, which I enabled, but didn't enable the captcha access - I was locked out of my own blog.

This took a short while to fix ...

The message was something like:

Your IP address is blocked
Your IP address is listed ... (blacklist)

Read more »

I tried the AMCode plusgin for B2Evolution to allow code segments to be displayed (looks great) but I had an issue - the css wasn't loading up - not sure if it should work just fine for 1.8.6 but I do know they've moved on - however the fix was easy - locate the plugins php, found the css being output, modified the proper path for the image file, moved image file there, and added the output (and modified) css to another CSS file -

# locate _am_code.plugin.php
# nano /var/www/[xxx].com/htdocs/plugins/am_code_plugin/_am_code.plugin.php
# locate blog_elements.css
# nano /var/www/torbonium.com/blog.torbonium.com/htdocs/rsc/css/blog_elements.css
# locate numbers.gif
# ls /var/www/torbonium.com/blog.torbonium.com/htdocs/plugins/am_code_plugin/img/
# less /var/www/torbonium.com/blog.torbonium.com/logs/error_log
# mkdir /var/www/torbonium.com/blog.torbonium.com/htdocs/img