Tuesday, April 15, 2014

Re: RE: [LINUX_Newbies] No Boot after upgrade

 

Sometimes a Puppy Linux Live CD can mount the hard drive and somehow it cleans it up enough to boot. I know the LuPu Puppy CD saved an upgrade that stalled due to a power outage. Boy, that was one repair that really made me happy. It may help...remember to un-mount before you power off.

Joan in Reno
 

From: "linuxcanuck@yahoo.ca" <linuxcanuck@yahoo.ca>
To: "LINUX_Newbies@yahoogroups.com" <LINUX_Newbies@yahoogroups.com>
Sent: Tuesday, April 15, 2014 2:07 PM
Subject: Re: RE: [LINUX_Newbies] No Boot after upgrade

 
Regression is very difficult which is why it is not more common. You can remove a misbehaving application in Windows more easily because it has a central registry that grows in size and it has multiple instances of libraries. This is handy in some cases but inefficient and problematic, as any user who has had a registry get destroyed can tell you.
Linux has no registry and library files are reused and must match giving the infamous expression, dependency error. If things get out of sync your computer can become unstable or malfunction. Mostly this is temporary until everything is aligned. Many users seldom to never reboot. Some Linux boxes run for years without rebooting. There is no real need if you choose to update infrequently and can be patient should things go awry.
This has been on the wish list of users for a long time.
We feel your pain, but it is all part of the learning curve.
Roy


From: Ken (desco) Ramsey <desco1kr@comcast.net>;
To: <LINUX_Newbies@yahoogroups.com>;
Subject: RE: [LINUX_Newbies] No Boot after upgrade
Sent: Tue, Apr 15, 2014 6:43:45 PM

 

A disk image prior to the update upgrade service pack, patch might be considered?
 
-----Original Message-----
From: LINUX_Newbies@yahoogroups.com [mailto:LINUX_Newbies@yahoogroups.com]On Behalf Of John Ferrell
Sent: Tuesday, April 15, 2014 2:38 PM
To: LINUX_Newbies@yahoogroups.com
Subject: Re: [LINUX_Newbies] No Boot after upgrade

I am surprised to find that there is not a simple way to retreat from a system change but the main purpose of this system is my learning Lab.
I will slowly & cautiously proceed.
ThankYou!

On 4/15/2014 6:44 AM, Linux Canuck wrote:
You cannot remove the upgrade easily and it can cause more problems than it resolves. The likely cause is a partial upgrade. I would try to fix that instead.


--   John Ferrell W8CCW  "Kindness is the language the blind can see and the  deaf can hear." - Mark Twain  


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Re: RE: [LINUX_Newbies] No Boot after upgrade

 

Regression is very difficult which is why it is not more common. You can remove a misbehaving application in Windows more easily because it has a central registry that grows in size and it has multiple instances of libraries. This is handy in some cases but inefficient and problematic, as any user who has had a registry get destroyed can tell you.

Linux has no registry and library files are reused and must match giving the infamous expression, dependency error. If things get out of sync your computer can become unstable or malfunction. Mostly this is temporary until everything is aligned. Many users seldom to never reboot. Some Linux boxes run for years without rebooting. There is no real need if you choose to update infrequently and can be patient should things go awry.

This has been on the wish list of users for a long time.

We feel your pain, but it is all part of the learning curve.

Roy

Sent from Yahoo Mail on Android



From: Ken (desco) Ramsey <desco1kr@comcast.net>;
To: <LINUX_Newbies@yahoogroups.com>;
Subject: RE: [LINUX_Newbies] No Boot after upgrade
Sent: Tue, Apr 15, 2014 6:43:45 PM

 



A disk image prior to the update upgrade service pack, patch might be considered?
 
-----Original Message-----
From: LINUX_Newbies@yahoogroups.com [mailto:LINUX_Newbies@yahoogroups.com]On Behalf Of John Ferrell
Sent: Tuesday, April 15, 2014 2:38 PM
To: LINUX_Newbies@yahoogroups.com
Subject: Re: [LINUX_Newbies] No Boot after upgrade

I am surprised to find that there is not a simple way to retreat from a system change but the main purpose of this system is my learning Lab.
I will slowly & cautiously proceed.
ThankYou!

On 4/15/2014 6:44 AM, Linux Canuck wrote:
You cannot remove the upgrade easily and it can cause more problems than it resolves. The likely cause is a partial upgrade. I would try to fix that instead.


--   John Ferrell W8CCW  "Kindness is the language the blind can see and the  deaf can hear." - Mark Twain  

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RE: [LINUX_Newbies] No Boot after upgrade

 



A disk image prior to the update upgrade service pack, patch might be considered?
 
-----Original Message-----
From: LINUX_Newbies@yahoogroups.com [mailto:LINUX_Newbies@yahoogroups.com]On Behalf Of John Ferrell
Sent: Tuesday, April 15, 2014 2:38 PM
To: LINUX_Newbies@yahoogroups.com
Subject: Re: [LINUX_Newbies] No Boot after upgrade

I am surprised to find that there is not a simple way to retreat from a system change but the main purpose of this system is my learning Lab.
I will slowly & cautiously proceed.
ThankYou!

On 4/15/2014 6:44 AM, Linux Canuck wrote:
You cannot remove the upgrade easily and it can cause more problems than it resolves. The likely cause is a partial upgrade. I would try to fix that instead.


--   John Ferrell W8CCW  "Kindness is the language the blind can see and the  deaf can hear." - Mark Twain  

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Re: [LINUX_Newbies] No Boot after upgrade

 

I am surprised to find that there is not a simple way to retreat from a system change but the main purpose of this system is my learning Lab.
I will slowly & cautiously proceed.
ThankYou!

On 4/15/2014 6:44 AM, Linux Canuck wrote:
You cannot remove the upgrade easily and it can cause more problems than it resolves. The likely cause is a partial upgrade. I would try to fix that instead.


--   John Ferrell W8CCW  "Kindness is the language the blind can see and the  deaf can hear." - Mark Twain  

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Re: [LINUX_Newbies] No Boot after upgrade

 

You cannot remove the upgrade easily and it can cause more problems than it resolves. The likely cause is a partial upgrade. I would try to fix that instead.

To remove the upgrade you would have to know which packages were upgraded, then completely remove them with the package manager (Synaptic has this option or try the commands below). Then you have to change your settings to always prefer the installed version instead of the higher version. Then re-install the packages. Even after all of this, it may not work.

From the commandline: 

apt-get purge <package_name>   (completely removes the package or packages. To remove multiple packages just leave a space between the names.)
or
apt-get remove <package_name>   (this removes but does not remove configuration files)


You might want to clean your apt cache before trying any fixes. Otherwise it will not download fresh packages, but install the already downloaded ones that caused the problem. 

Cleaning house:
apt-get clean        (removes all packages from your apt cache)
apt-get autoremove        (removes installed packages that are not being used, but could cause conflicts)

Fixing the problem:
dpkg --configure -a        (restarts the process of install any unfinished package installations)
apt-get install -f             (fixes broken packages)

Use sudo if that is what you are using instead of changing to root user.

Upgrading once more:
apt-get update 
apt-get upgrade

That sounds like a lot of work, but I do not know what is precisely wrong so this is just a bunch of things that I try and they usually work. Good luck. 

Roy

On Monday, April 14, 2014 8:42:25 PM, "jferrell13@triad.rr.com" <jferrell13@triad.rr.com> wrote:
 
I am running Debian Wheezy and I frequently run
sudo apt-get update
followed by
sudo apt-get upgrade
When I ran the upgrade it restarted a package and recommended a full system restart.
When I did that it hung on the way up. I believe it got past the password point.
The Debian boot always offers a recovery option on boot, I tried it.
The command line asked for a root password and came to a stop displaying
root@debian:~#       prompt.
The help command works here.
My question:
How can I remove that upgrade that I applied?
John W8CCW


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Monday, April 14, 2014

[LINUX_Newbies] No Boot after upgrade

 

I am running Debian Wheezy and I frequently run

sudo apt-get update

followed by

sudo apt-get upgrade

When I ran the upgrade it restarted a package and recommended a full system restart.

When I did that it hung on the way up. I believe it got past the password point.

The Debian boot always offers a recovery option on boot, I tried it.

The command line asked for a root password and came to a stop displaying

root@debian:~#       prompt.

The help command works here.

My question:

How can I remove that upgrade that I applied?

John W8CCW

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Sunday, April 13, 2014

[LINUX_Newbies] Re: Java FX in Ubuntu

 

> ---In LINUX_Newbies@yahoogroups.com, <rvdidit@...> wrote :
> Hi  again,
> I have been using my TOS software, but then they upgraded, and it wont open again.
> (Thanks to all of you who helped me get that far.)
> The platform is Java based- I know that on Windows it uses its own Java, and we 
> disable / remove Java from windows system due to conflicts.
> The error message I get reads "Open JDK7 does not contain Java FX on Linux, please install Oracle JRE
> or install Java FX separately and add it to crosspath."
> I looked and could not find this FX patch, so I uninstalled Java 7, and installed 6. That didnt work.
> It says that didnt have fx in it either. I forget what I did next, but does anyone understand the 
> quote above, and what it wants me to do?
> Thx.
> Ross

JavaFX is used to create Internet applications in Java.  It is not a patch, it is more like a 
different way to program in Java.  For those of you who know what JavaFX is, I know this is
very much oversimplified but that is not relevant here.

The error message you are seeing means this:
1. Uninstall Open JDK7.
2. Install real official Java Runtime Environment from Oracle.  Sometimes this is called Sun Java or Oracle Java.

Ignore the part that says "or install JavaFX separately."  That is only for very experienced Linux
and Java people.

The best way to do the two steps above are to use your software management tool in your distribution.  In
order from us to help better, you would need to give us more information about your distro.
Loyal

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