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Old 11-21-2012, 03:59 PM   #1
JulianD
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Linux in place updating


Hello all!

My first post !

I would like to understand one thing. I would like to update a linux version that I have without having to reinstall with the latest version of that distribution that I have. Even this has to be done with Linux from Scratch.
I have read that the Toolchain is the heart of linux after the kernel.
Can I update a system step by step myself however hard.

I have at present nst installed and want to do Linux from Scratch which I have started before but not finished.

I installed gcc once but it did not replace the one that was installed from the distro I had at the time. How can I update a system completely with having to use a new install disc?


Thanks,

JulianD

Last edited by JulianD; 11-21-2012 at 04:11 PM.
 
Old 11-21-2012, 04:26 PM   #2
markush
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Hello JulianD, welcome to LQ,

I doubt that I've understood your question. From what I've understood, you can upgrade any Linux-distribution with the tools the distribution provides, for example the packagemanager or how ever the tool is named for your distribution. You should read the documentation.

As for Linux from Scratch: the have a very good handbook. Upgrading Linux from Scratch is done manually.

Markus
 
Old 11-22-2012, 06:11 AM   #3
JulianD
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Hi Markus,

Thanks.

I think the example of installing GCC might help a little. I think I had a Suse distro at that time.
I also manually installed the new version. It installed fully.
But the system GCC was still the one installed by the distro.
What I am looking into is upgrading a linux installation manually without the distro.
Linux from Scratch is a good example. It needs to be done manually.
But upgrading lfs needs to be done carefully. The toolchain needs to be upgraded step by step.
Would this be the same for any distro. ie upgrade the toolchain.
ie dependancy problems.

thanks,

Julian
 
Old 11-22-2012, 06:29 AM   #4
pixellany
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It sounds like you want to upgrade a particular application without using the package manager. the first answer is that this is a very bad idea.

If you insist----you have to find out the various library files (AKA dependencies) that are required by the new application. Then you have to find the right version of each one and install it manually. Finally, you have to fix everything else that broke because the new files are not the right one for OTHER applications. It is not possible to estimate how long all this will take........

Now that I've scared you, it certainly IS possible to have 2 different versions of a library file installed. sometimes, you'll find MANY versions---with a symlink set up to the one to be actually used.
 
Old 11-22-2012, 06:30 AM   #5
markush
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Quote:
Originally Posted by JulianD View Post
...
What I am looking into is upgrading a linux installation manually without the distro.
Linux from Scratch is a good example. It needs to be done manually.
But upgrading lfs needs to be done carefully. The toolchain needs to be upgraded step by step.
Would this be the same for any distro. ie upgrade the toolchain.
ie dependancy problems...
Yes, that's what the maintainers of a distribution do. Once when gcc and glibc or the kernel have to be updated, the toolchain must be adapted at first. An important word to google for is "kernelheaders"

Markus
 
Old 11-22-2012, 06:47 AM   #6
JulianD
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Hello,

Thanks for your comments. I am interested in running my own linux but want to understand the core problems that I have experienced myself before.
I also wanted in the last few days install a distro that has a light desktop but where things work especially networking and NST was the one I installed. It then installed 500MB of updates.
I item that is in my head is that I have a LFS Live CD but it is out of date. Can I update this without restarting the whole thing again.

Anyway I will leave it at this and say thanks.
I think I will be around with a few questions with the problems I encounter.

Thanks,

Julian
 
Old 11-22-2012, 07:45 AM   #7
markush
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Quote:
Originally Posted by JulianD View Post
...
I item that is in my head is that I have a LFS Live CD but it is out of date. Can I update this without restarting the whole thing again.
...
We have a forum for LFS here at LQ, maybe that's the place to ask.

As of restarting the whole thing, I would write some scripts which handle those tasks which are often repeated.

Markus
 
  


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