Mostly Debian Rants and Notes

How to upgrade your Debian Wheezy to Jessie

2015-05-03T07:37:00.003-07:00

Source

cp /etc/apt/sources.list{,.bak}
cat /etc/apt/sources.list
sed -i -e 's/ $stable\|wheezy$/ jessie/ig' /etc/apt/sources.list
apt-get update

apt-get --download-only dist-upgrade

apt-get dist-upgrade -y

Closing session windows in Byobu

2015-04-21T23:48:00.002-07:00

Just recently use Byobu. And finding credible note is royal pain. Will update when I am free.

Close Window/Session
Ctrl+F6

Resize Pane
Alt+Shit+Rigth/Left

dpkg problem

2012-09-24T04:39:00.000-07:00

Had this problem:

subprocess installed post-installation script returned error exit status 1

And found a solution here

What I did to recover from this problem;

Go to /var/lib/dpkg/info
Find the related package problem ended with *.postinst
Delete that particular file
Try apt-get update again, should be working

Error with debconf

2012-09-24T03:54:00.000-07:00

I had this problem just now, making my system half-broke!

"Use of uninitialized value in concatenation (.) or string at /usr/share/perl5/Debconf/DbDriver/File.pm line 44, <DEBCONF_CONFIG> chunk 3."

Searched for the solution and found. To solve,

sudo apt-get install debconf --reinstall

and worked!

Lomo plugin for Gimp

2012-09-18T00:44:00.002-07:00

1. Install this plugin. Create a folder and extract that zipfile.

2. Use gimptool. As for this time of writing, in Linux Mint Maya 13 (based on Ubuntu 12.04 LTS), I need to install libgimp2.0-dev.

Afterwards,

gimptool-2.0 --install-script lomo-gimp.scm

3. Launch Gimp. Go to Filters->Artistics->Lomo Gimp

4. Alter whatever variable that you need.

Removing comma at then of line

2012-09-13T16:35:00.001-07:00

Let say for a file named "filename.CSV"

Use;

sed 's/,$//g' filename.CSV

Enable USB on Oracle's Virtualbox

2012-09-12T20:14:00.002-07:00

I want to mount my USB disk on my Windows as the guest on my Ubuntu host. But need to install a USB extension. Download the extension here. Which version suits you depends.. you may want to test one by one as there is no clear cut or suggested version on the Virtualbox installed.

Go to your Virtualbox menu, File->Preferences

After few straightforward/self-explain buttons, it's good to go!

After the installation, the USB won't be mounted straight away, you need to include the current user into vboxuser as explained here

rsync using non standard SSH port

2012-09-10T16:12:00.000-07:00

For some reason, you want to listen SSH on different port. Let say you want to minimize SSH illegitimate attempt by deceiving the people out there with so called "closed port" (I learned this from Mr Adli Wahid, the then VP of CyberSecurityMalaysia).

Rsync can be mapped with SSH, but by using the normal -e ssh flag it will use the default port 22.

To use with you personalized port, let say port 60000 use

rsync -avz --progress -e 'ssh -p60000'

and the rest of the command.

That's all, worked for me.

x11vnc + lightdm - how to login lightdm remotely

2012-09-10T05:15:00.003-07:00

x11vnc usually cannot be used to log into GDM/KDM/LIGHTDM directly, unless there's already someone else logged to that machine.

Here is the solution with xinetd originally blogged here;

Edit /etc/xinetd.d/x11vnc

Put:

service x11vnc
{
type = UNLISTED
disable = no
socket_type = stream
protocol = tcp
wait = no
user = root
server = /usr/bin/x11vnc
server_args = -inetd -o /var/log/x11vnc.log -display :0 -forever -bg -rfbauth /etc/vncpasswd -shared -enablehttpproxy -forever -nolookup -auth /var/run/lightdm/root/:0
port = 5900
flags = IPv6
}

Make it executable;

sudo chmod a+x /etc/xinetd.d/x11vnc

Assign password to be stored;

sudo x11vnc -storepasswd (VNC password) /etc/vncpasswd

Ignoring translation files during apt-get update

2012-09-09T21:11:00.004-07:00

Ever had this problem?

Get:10 http://archive.mmu.edu.my squeeze/main Translation-vi [16.0 kB]
Get:11 http://archive.mmu.edu.my squeeze/main Translation-fr [553 kB]
Get:12 http://archive.mmu.edu.my squeeze/main Translation-it [1546 kB]
Get:13 http://archive.mmu.edu.my squeeze/main Translation-ja [1002 kB]
Get:14 http://archive.mmu.edu.my squeeze/main Translation-km [4772 B]
Get:15 http://archive.mmu.edu.my squeeze/main Translation-es [472 kB]
Get:16 http://archive.mmu.edu.my squeeze/main Translation-ca [5637 B]
Get:17 http://archive.mmu.edu.my squeeze/main Translation-zh [1685 B]
Get:18 http://archive.mmu.edu.my squeeze/main Translation-hu [49.4 kB]
Get:19 http://archive.mmu.edu.my squeeze/main Translation-pl [375 kB]
Get:20 http://archive.mmu.edu.my squeeze/main Translation-pt [687 kB]
Get:21 http://archive.mmu.edu.my squeeze/main Translation-eu [9373 B]
Get:22 http://archive.mmu.edu.my squeeze/main Translation-nl [45.3 kB]

Since I know I may never need this, we need to fine tune our apt.conf

Edit /etc/apt/apt.conf

Put;

Acquire::Languages "none";

Problem solved!

Debian on Mac Mini

2012-09-09T01:44:00.000-07:00

I just installed Debian Testing (Wheezy) on my Mac Mini. However, it has the deficiency of the firmware (wireless driver) if you just install it using a single CD.

So;

install

apt-get install wireless-tools firmware-b43-installer

Then configure this file manually;

Edit the /etc/network/interfaces file

Put in the file:

auto wlan0 #so that you can boot up with WiFi connection automatically
iface wlan0 inet dhcp
wpa-ssid <put your WiFi access point name>
wpa-psk <put your WiFi access password>

Super-cow powered?

2012-09-04T05:35:00.000-07:00

interesting post from here

tested out:

Pear Linux : Customized Gnome 3 to the max - Mac OS X looks like

2012-08-29T18:36:00.004-07:00

Pretty awesome distro (for the interface). If you're using it, feel free to drop comment here.

Link

Cronjob log for Ubuntu

2012-08-27T23:08:00.002-07:00

Ubuntu does not provide special log file for cronjobs in /var/log; instead she put it in syslog fail. Here goes:

!█▓▒░root@macbuntu░▒▓██▓▒░ Tue Aug 28
~/ # !tail
tail -f /var/log/syslog|grep -i cron
Aug 28 14:06:01 macbuntu CRON[5561]: (CRON) info (No MTA installed, discarding output)
Aug 28 14:06:02 macbuntu CRON[5560]: (CRON) info (No MTA installed, discarding output)
Aug 28 14:06:45 macbuntu CRON[5558]: (CRON) info (No MTA installed, discarding output)
Aug 28 14:07:01 macbuntu CRON[5604]: (root) CMD (webalizer)
Aug 28 14:07:01 macbuntu CRON[5603]: (root) CMD (cd /root/web/malware;rm -f *.tar.bz2;/bin/tar cjvf `date '+%d%b%y-%H%M%p'`.tar.bz2 `ls|grep -e "[0-9a-f]\{32\}"`)
Aug 28 14:07:01 macbuntu CRON[5606]: (root) CMD (cd /root/web/malware;avgscan `ls|grep -e "[0-9a-f]\{32\}"` > malware-list.txt)
Aug 28 14:07:01 macbuntu CRON[5607]: (root) CMD (/usr/lib/cgi-bin/awstats.pl -config=awstats.conf -update)
Aug 28 14:07:01 macbuntu CRON[5602]: (CRON) info (No MTA installed, discarding output)
Aug 28 14:07:02 macbuntu CRON[5601]: (CRON) info (No MTA installed, discarding output)