Very Late With Aptupgrade-Back For More

[Lucwarmus]

Was following instructions from PC Linux Magazine, July 2012 article by AndrzejL  titled "Forgot To Run aptupgrade? Don't Panic!".
Thanks to those who have offered info and said Welcome. unxz is a command; unxx is not. (btw the man page for "xz" is over 1300 lines). Please let me know if or where  I should move this post, as it seems poorly located here.
I doubt anyone would want to analyze why this won't work, but anyway, the command below: unxz (or xz --decompress) seems to me to have nothing to work on; Upon using ls -la, all that's newly created in the /root directory (by the previous two commands) is: aptupgrade-1.0-7pclos2011.src.rpm The unxz... command returns a repeat of the command (naturally), with "file not found"

AndrzejL's Article cli mat'l follows (all rights reserved):
Open a terminal and run:

su
followed by
root's password
and then…
cd /root/
wget -c http://andrzejl.cyryl.net/WoTW/WoTW_files/aptupgrade/aptupgrade-1.0-7pclos2011.src.rpm
rpm -ivh /root/aptupgrade-1.0-7pclos2011.src.rpm
unxz /root/rpmbuild/SOURCES/aptupgrade-1.0.tar.xz
cd /root/rpmbuild/SOURCES
tar xvf ./aptupgrade-1.0.tar
cd ./aptupgrade-1.0
rpm -ivh --nodeps --force --ignorearch --ignoresize --ignoreos ./*.rpm
rm -f /root/aptupgrade-1.0-7pclos2011.src.rpm
rm -Rf /root/rpmbuild/

BE CAREFUL WHILE USING THE RPM COMMANDS!

[TerryN]

The command is unxz (not unxx)

It decompresses aptupgrade-1.0.tar.xz into aptupgrade-1.0.tar

Terry

[7272andy]

I feel I should also add Welcome to the forums, given this was your first post.

Regards

[Neal ManBear]

To run aptupgrade you must have it installed. As it is no longer in the repository, it can not be installed.     
Really it needed to be installed and run over a year ago.     

A reinstall from a newer ISO might be in order.     

[menotu]

I feel I should also add Welcome to the forums, given this was your first post.

Regards

And I'll upgrade that welcome by one  welcome Lucwarmus nice to have you with us.