Ubuntu: How to reschedule mlocate

What is mlocate can be found here.

By default it is scheduled to execute daily – that might not meet your expectations what you computer should do when you power it up.

Here is how to reschedule it to execute weekly:

### In the terminal
sudo chmod -x /etc/cron.daily/mlocate
sudo cp /etc/cron.daily/mlocate /etc/cron.weekly/mlocate
sudo chmod +x /etc/cron.weekly/mlocate

This has been checked with Ubuntu 18.04 LTS.

Raspberry Pi: cross-compile Boost libraries

  • Ubuntu 16.04 LTS
  • arm-linux-gnueabihf (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  • Raspberry Pi 3 Model B
Install toolchain

See C++ cross-compiling.

Download boost source code

Boost source on Sourceforge. In my case boost_1_63_0.tar.bz2.


Say, we need boost-iostreams, installation folder /usr/local/boost:

# Unpack the archive
$ tar --bzip2 -xf boost_1_63_0.tar.bz2
$ cd boost_1_63_0
$ ./bootstrap.sh
# In the project-config.jam file replace
# using gcc ;
# by
# using gcc : arm : arm-linux-gnueabihf-g++ ;
$ sudo ./bjam install toolset=gcc-arm --prefix=/usr/local/boost --with-iostreams