Update and upgrade question

[jadro]

Hi,
from time to time I usually do this:
sudo apt-get update
sudo apt-get upgrade
sudo apt-get clean
and this is ok...

In past few days I found message down in picture that says that sonic-pi have been kept back.
1. Does this mean that it has been restored to previous version or that it hasn't been updated?

2. One of messaage says that 1 not upgraded, I think it is sonic-pi, yes?

3. And there is a message that there were following packages installed but no longer required. Use apt-get autoremove to remove them... Is this all I have to do or do i need sudo apt-get autoremove? And do I need to named package like sudo apt-get autoremove libasn1-8-heimdal libgssapi3-heimdal libhcrypto4-heimdal etc... or just apt-get autoremove to remove all of them?

Thanks,
Jadro

[topguy]

"upgrade" will not install any additional packages that is not already in the system.
"kept-back" means that there exists a newer version of a package but the update has a new dependency and you are only doing "upgrade".

"dist-upgrade" will install all updated versions and install new dependencies.
"autoremove" should remove all packages that no longer is needed by other packages.

Code: Select all

sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get autoremove
sudo apt-get clean

[jadro]

Thanks,
Jadro

[fruitoftheloom]

Thanks,
Jadro

https://linux.die.net/man/8/apt-get

[mfa298]

"autoremove" should remove all packages that no longer is needed by other packages.

Added bold to the key part of that statement, the autoremove packages are things that were installed for other packages which you've probably since un-installed. This doesn't always mean that you don't need those packages.

I heard a story from a friend once where they have installed php on a server which brought in the mysql libraries, they then found that version of php wasn't suitable so uninstalled it and compiled php from source (using the mysql libraries that had been installed as dependencies). At a later point another colleague of his did an autoremove which removed the mysql libraries (as no package was requiring them), the site then stopped working.

[robbes]

Use the newer

apt

command: saves wear and tear on your fingers and your keyboard, and gives you some nice progress bars.

[wildfire]

Use the newer

apt

command: saves wear and tear on your fingers and your keyboard, and gives you some nice progress bars.

Yep, it also makes more sense than apt-get -remove, why are you typing get to remove something???

[jadro]

You mean
apt update
upt upgrade
upt clean
or how?

[tpylkko]

Read the manual and use it how you see fit

Code: Select all

man apt

[jadro]

Thanx

[jadro]

After hit sudo apt-get autoremove there are wiringpi and some keyboard packages that is to be REMOVED.
Why wiringpi and this keyboard-shortcut?
Does any of forum experts have problem after remove these with autoremove? Wiringpi is one of the basics for gpio no? I do lot with GPIO and Python and i have fear about this...

remove.PNG (16.96 KiB) Viewed 2610 times

Jadro

[mfa298]

After hit sudo apt-get autoremove there are wiringpi and some keyboard packages that is to be REMOVED.
Why wiringpi and this keyboard-shortcut?
Does any of forum experts have problem after remove these with autoremove? Wiringpi is one of the basics for gpio no? I do lot with GPIO and Python and i have fear about this...

remove.PNG

Jadro

See my earlier post (viewtopic.php?f=63&t=167587&p=1079586#p1078175) about what autoremove does.

[jadro]

See my earlier post (viewtopic.php?f=63&t=167587&p=1079586#p1078175) about what autoremove does.

Yes I saw it and this was the reason why I did not remove this till now.
My question was twosided... if any of user have problem whit GPIO stuff after remove this... if not, I dont see why I shoudn't do this.
Ofcourse, I need to backup my SD card... And tested GPIO and wiringpi after doing this

Jadro

[dgordon42]

About removing 'wiringpi':
I saw this last May when 'pigpio' was added to the Raspbian Jessie download. I think it replaced 'wiringpi' in the standard download, so now 'apt-get' autoremoves 'wiringpi'. I let it autoremove 'wiringpi', and then I installed it again. Both packages have been working normally ever since.

I don't know anything about 'xfce-keyboard-shortcuts', if you need them just reinstall them.

Hope this helps,
Dave.

[mfa298]

See my earlier post (viewtopic.php?f=63&t=167587&p=1079586#p1078175) about what autoremove does.

Yes I saw it and this was the reason why I did not remove this till now.
My question was twosided... if any of user have problem whit GPIO stuff after remove this... if not, I dont see why I shoudn't do this.
Ofcourse, I need to backup my SD card... And tested GPIO and wiringpi after doing this

Jadro

That probably depends on what's in that package ("dpkg -L wiringpi" will tell you the files in it) and whether what you're doing uses wiringpi. There are several ways to address the gpio on the Pi and wiringpi is a library that helps with one of those ways.

[jadro]

Thanx...

[jadro]

Afterall, i do sudo apt-get autoremove and yes, my wiringPi was REMOVED and I wasn't able to put GPIO ON or OFF from webpage.
Then I install wiringPi:

Code: Select all

sudo apt-get update && sudo apt-get upgrade
[email protected] ~ $ git clone git://git.drogon.net/wiringPi
...
[email protected] ~ $ cd wiringPi
[email protected] ~/wiringPi $ git pull origin
[email protected] ~/wiringPi $ ./build
...
[email protected] ~/wiringPi $ gpio readall

and my GPIO are operable again from webpage.

This is message after install:

wp.PNG (41.8 KiB) Viewed 2327 times

but for now, everything seem to work.
Jadro

[mfa298]

Afterall, i do sudo apt-get autoremove and yes, my wiringPi was REMOVED and I wasn't able to put GPIO ON or OFF from webpage.
Then I install wiringPi:

Code: Select all

sudo apt-get update && sudo apt-get upgrade
[email protected] ~ $ git clone git://git.drogon.net/wiringPi
...
[email protected] ~ $ cd wiringPi
[email protected] ~/wiringPi $ git pull origin
[email protected] ~/wiringPi $ ./build
...
[email protected] ~/wiringPi $ gpio readall

and my GPIO are operable again from webpage.

This is message after install:

wp.PNG

but for now, everything seem to work.
Jadro

On thing to note there is that you've uninstalled the packaged version of wiringpi and installed the latest version from source code.

apt-* commands work on packages which have already been compiled for you and will also get updates (usually only for bugs) via apt-get upgrade, compiling from source means you can have more control over how it's built and you'll get the latest version but you'll need to manually update it.

[jadro]

apt-* commands work on packages which have already been compiled for you and will also get updates (usually only for bugs) via apt-get upgrade, compiling from source means you can have more control over how it's built and you'll get the latest version but you'll need to manually update it.

O, I didn't know this, why apt-get upgrade does not update the packages that I have installed manually?
Do I need sudo apt-get upgrade wiringPi to upgrade if there is a new version?

Thanx,
Jadro

[jadro]

If I upgrade to last version of wiringPi manually, do i need to compile it ([email protected] ~/wiringPi $ ./build) or not?

[mfa298]

apt-* commands work on packages which have already been compiled for you and will also get updates (usually only for bugs) via apt-get upgrade, compiling from source means you can have more control over how it's built and you'll get the latest version but you'll need to manually update it.

O, I didn't know this, why apt-get upgrade does not update the packages that I have installed manually?
Do I need sudo apt-get upgrade wiringPi to upgrade if there is a new version?

apt-get upgrade will only upgrade the packages it knows about that you've installed (i.e. things installed via apt-get install) if you compile from source then apt won't know about it.

For wiring Pi is looks like there's little difference between the packaged version and the version in git. For other packages there can be a huge difference. For instance the packaged version of vlc is 2.2.1 If you downloaded the source and compiled it yourself you'd get 2.2.4 (in some cases the difference can be much greater).

The benefit of installing something from the package (especially for larger packages) is that someones done the hard work for you. Compiling something like vlc may take a while determining and installing the required dependencies, best options to configure it with and then an hour to compile. Installing via apt-get someone has effectively done that work for you and and provided the end product that you can just install.

Going back to the version differences, part of the reason for this is that most linux distributions will keep the same version of the software and only apply security fixes. If they moved up the versions then it might introduce new features or change how the software works. For something like vlc that isn't an issue. For other packages (e.g. the webserver apache) that might cause issues for the person running a website (you generally don't want updates to break your web server)

[jadro]

Thanks for the detailed reply and clarification,
Jadro