Upgrading to latest stable Mysql version on Readynas NV+ V2

I'm in exactly the same boat, ReadyNAS NV+ v2 running MySQL 5.1.49-3 (Debian)

Firmware is RAIDiator 5.3.13 (which I believe to be the latest version released for this model).

Debian version is 6.0.3

root@ReadyNAS:~# uname -srm
Linux 2.6.31.8.nv+v2 armv5tel

root@ReadyNAS:~# mysql -v -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is ######
Server version: 5.1.49-3 (Debian)

root@ReadyNAS:~# cat /etc/debian_version
6.0.3

Pretty much all of the apt sources fail to resolve but I'm worried if I update the source list to newer sources, it could replace important bits that might brick the entire thing.

root@ReadyNAS:~# sudo apt-get update
Err http://www.readynas.com 5.3.13/ Release.gpg                                                          
  Could not resolve 'www.readynas.com'
Err http://www.readynas.com/packages/ 5.3.13/ Translation-en                                             
  Could not resolve 'www.readynas.com'
Err http://www.readynas.com/packages/ 5.3.13/ Translation-en_US                                          
  Could not resolve 'www.readynas.com'
Err http://ftp.us.debian.org squeeze Release.gpg                                                         
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org/debian/ squeeze/main Translation-en        
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org/debian/ squeeze/main Translation-en_US     
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org squeeze-updates Release.gpg                
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org/debian/ squeeze-updates/main Translation-en
  Could not resolve 'ftp.us.debian.org'
Err http://ftp.us.debian.org/debian/ squeeze-updates/main Translation-en_US
  Could not resolve 'ftp.us.debian.org'
Err http://security.debian.org squeeze/updates Release.gpg              
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ squeeze/updates/main Translation-en
  Could not resolve 'security.debian.org'
Err http://security.debian.org/ squeeze/updates/main Translation-en_US
  Could not resolve 'security.debian.org'
Reading package lists... Done         
W: Failed to fetch http://www.readynas.com/packages/5.3.13/Release.gpg  Could not resolve 'www.readynas.com'

W: Failed to fetch http://www.readynas.com/packages/5.3.13/en.bz2  Could not resolve 'www.readynas.com'

W: Failed to fetch http://www.readynas.com/packages/5.3.13/en_US.bz2  Could not resolve 'www.readynas.com'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze/Release.gpg  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze/main/i18n/Translation-en.bz2  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze/main/i18n/Translation-en_US.bz2  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://security.debian.org/dists/squeeze/updates/Release.gpg  Could not resolve 'security.debian.org'

W: Failed to fetch http://security.debian.org/dists/squeeze/updates/main/i18n/Translation-en.bz2  Could not resolve 'security.debian.org'

W: Failed to fetch http://security.debian.org/dists/squeeze/updates/main/i18n/Translation-en_US.bz2  Could not resolve 'security.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze-updates/Release.gpg  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze-updates/main/i18n/Translation-en.bz2  Could not resolve 'ftp.us.debian.org'

W: Failed to fetch http://ftp.us.debian.org/debian/dists/squeeze-updates/main/i18n/Translation-en_US.bz2  Could not resolve 'ftp.us.debian.org'

W: Some index files failed to download, they have been ignored, or old ones used instead.

  Did anyone manage to get a newer version of MySQL installed? I don't want to break my setup (it all works at the moment) but I can't export and backup my video libraries due to (what I assume to be) non-UTF-8 characters and I'm worried the whole thing will just go and I'll be done.

I had to fix some broken dependencies when I first attempted to install mysql-server

root@ReadyNAS:~# apt-get install mysql-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 tzdata-java : Depends: tzdata (= 2014e-0squeeze1) but 2012c-0squeeze1 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
root@ReadyNAS:~# apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libupsclient1 libpcap0.8 cracklib-runtime libnss-mdns libcrack2 libcap-ng0 libavahi-client3 libnet1
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  tzdata
The following packages will be upgraded:
  tzdata
1 upgraded, 0 newly installed, 0 to remove and 104 not upgraded.
Need to get 0 B/639 kB of archives.
After this operation, 487 kB disk space will be freed.
Do you want to continue [Y/n]? Y
WARNING: The following packages cannot be authenticated!
  tzdata
Install these packages without verification [y/N]? Y
debconf: delaying package configuration, since apt-utils is not installed
(Reading database ... 15278 files and directories currently installed.)
Preparing to replace tzdata 2012c-0squeeze1 (using .../tzdata_2014e-0squeeze1_all.deb) ...
Unpacking replacement tzdata ...
Setting up tzdata (2014e-0squeeze1) ...

Current default time zone: 'Europe/Lisbon'
Local time is now:      Thu Mar  7 15:27:15 WET 2024.
Universal Time is now:  Thu Mar  7 15:27:15 UTC 2024.
Run 'dpkg-reconfigure tzdata' if you wish to change it.

root@ReadyNAS:~# dpkg-reconfigure tzdata

Current default time zone: 'Europe/London'
Local time is now:      Thu Mar  7 15:27:43 GMT 2024.
Universal Time is now:  Thu Mar  7 15:27:43 UTC 2024.

and then when I retried to install mysql-server:

root@ReadyNAS:~# apt-get install mysql-server
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be upgraded:
  mysql-server
1 upgraded, 0 newly installed, 0 to remove and 100 not upgraded.
Need to get 65.7 kB of archives.
After this operation, 0 B of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  mysql-server
Install these packages without verification [y/N]? Y
Err http://ftp.us.debian.org/debian/ squeeze/main mysql-server all 5.1.73-1
  Could not resolve 'ftp.us.debian.org'
Err http://security.debian.org/ squeeze/updates/main mysql-server all 5.1.73-1
  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/m/mysql-5.1/mysql-server_5.1.73-1_all.deb  Could not resolve 'security.debian.org'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

I've tried it with the suggested --fix-missing as well:

root@ReadyNAS:~# apt-get install mysql-server --fix-missing
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be upgraded:
  mysql-server
1 upgraded, 0 newly installed, 0 to remove and 100 not upgraded.
Need to get 65.7 kB of archives.
After this operation, 0 B of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  mysql-server
Install these packages without verification [y/N]? y
Err http://ftp.us.debian.org/debian/ squeeze/main mysql-server all 5.1.73-1
  Could not resolve 'ftp.us.debian.org'
Err http://security.debian.org/ squeeze/updates/main mysql-server all 5.1.73-1
  Could not resolve 'security.debian.org'
Failed to fetch http://security.debian.org/pool/updates/main/m/mysql-5.1/mysql-server_5.1.73-1_all.deb  Could not resolve 'security.debian.org'

Thanks in advance

Sandy