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gcc error – undefined reference to `__gxx_personality_v0′
Problem:
Got the following error when compiling c program.
$gcc mydice.cc -o dice
/tmp/cc4uHuB6.o:(.eh_frame+0x13): undefined reference to `__gxx_personality_v0′
collect2: error: ld returned 1 exit status
My version of gcc
Thread model: posix
gcc version 4.7.2 (Debian 4.7.2-5)
Solution:
Turns out that I was using the wrong file extension.
Once I changed it to mydice.c my problem was solved.
This page (below) gives a fairly good reason as to why I was getting the error.
http://todayslearnings.blogspot.com/2007/12/undefined-reference-to-gxxpersonalityv0.html
Source:
https://www.linuxquestions.org/questions/programming-9/gcc-compiler-error-while-compiling-*-c-file-914284/
https://ubuntuforums.org/showthread.php?t=474537
Network Manager – Device not managed
Problem:
Network Manager on debian says “Device not managed”
Solution:
As root edit /etc/NetworkManager/NetworkManager.conf
and change
managed=false to managed=true
restart network manager
/etc/init.d/network-manager restart
Setting up network – DNS
Problem:
I reinstalled my debian system and was not able to browse although I was able to ping other machines on the network. Turned out that my DNS server was not set. I was putting the setting in the DNS section in the Network Connections GUI but clearly I was still doing something wrong.
This is what I would get trying to ping google.
$ ping http://www.google.com
ping: unknown host http://www.google.com
Solution:
1. Installed the resolvconf package.
2. As root, added the following two lines into /etc/resolvconf/resolv.conf.d/tail
nameserver 8.8.8.8
nameserver 8.8.4.4
3. Saved and restarted networking.
That sorted me out.
Source:
http://unix.stackexchange.com/questions/39071/debian-problem-with-dns
sed – Replace only certain occurances
Problem:
I needed to change only certain occurances.
Solution:
Best explained with an example.
To change the first one.
$ echo "little kittens on a little boat" | sed 's/little/big/' big kittens on a little boat
To change the second one only.
$ echo "little kittens on a little boat" | sed 's/little/big/2' little kittens on a big boat
To change all the rest starting from the second one.
$ echo "little kittens on a little boat eating little fish" | sed 's/little/big/2g' little kittens on a big boat eating big fish
Duplicate source list entry
Problem:
I got the following error
W: Duplicate sources.list entry http://ftp.de.debian.org/debian/ wheezy/main i386 Packages (/var/lib/apt/lists/ftp.de.debian.org_debian_dists_wheezy_main_binary-i386_Packages)
Solution:
My /etc/apt/sources.list looks like this:
# deb cdrom:[Debian GNU/Linux 7.1.0 _Wheezy_ – Official i386 DVD Binary-1 20130615-21:54]/ wheezy contrib main
deb cdrom:[Debian GNU/Linux 7.1.0 _Wheezy_ – Official i386 DVD Binary-1 20130615-21:54]/ wheezy contrib main
deb http://security.debian.org/ wheezy/updates main contrib
deb-src http://security.debian.org/ wheezy/updates main contrib# wheezy-updates, previously known as ‘volatile’
# A network mirror was not selected during install. The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.
#
# deb http://ftp.debian.org/debian/ wheezy-updates main contrib
# deb-src http://ftp.debian.org/debian/ wheezy-updates main contrib# Added on 2013-11-03
deb http://ftp.de.debian.org/debian wheezy main
deb http://ftp.de.debian.org/debian wheezy main non-free
First hit on google unviels that the duplicate entry is caused by main being listed twice as seen below
deb http://ftp.de.debian.org/debian wheezy main
deb http://ftp.de.debian.org/debian wheezy main non-free
I commented out the first one and the problem was solved.
Sources:
http://forums.debian.net/viewtopic.php?f=10&t=76382
Further Reading:
http://www.debian.org/doc/manuals/debian-reference/ch02.en.html
pseudo-scripter 