Need help - unable to do Personal Backup on Vu+Duo

Actually on my Vu+Duo I have BH Image 1.6.6 installed. Try to upgrade and install image BH 1.7.9 (light)- installation past O.K. , but when try to do Personal Backup- received message that path is needed, then that something is “incompatible”….
I have motor system 42 East to 30 West.
Heard this last image is much better, , faster and so on, but if I am unable to do Personal Backup, then I am afraid to forget it.
I am very surprised why is impossible to execute Personal Backup from BH 1.6.6 to BH 1.7.9 and what can be the reason for that inconvenient.
If anyone can help to solve this problem, let me know please.

Thanks a lot for your assistance and help.
As i have Vu+Duo, is procedure same as you mentioned for Vu+Solo, or....
Please give me the link from where I can dlod this kernel and I hope after tha I'll be able to install BH 1.7.9 and mae Personal backup from HD from my box

Quote from Ten Below

Blackhole 1.6.6 uses the old kernel so your personal backup will not be compatible with later images, as stated in the 1.6.7 release.

Try to find kernel you mentioned, but only found duo_cfe_cfe.auto ( 280 kb) which seems to be the same as this old one I used when upradeing old BH 1.4 to BH 1.6.6
Sorry, but I am now confused what s I have to do, shall I repeat same procedure when installing BH 1.6.6 and then after installing old cfe_cfe kernel using USB- instal the newest BH 1.7.9
Please help me,

Black Hole Vu+ Solo 1.6.7 Kernel 3.1.1 beta2

Warning: YOU MUST UPDATE VU+ SOLO BOOT LOADER BEFORE TO FLASH THIS IMAGE:

THIS IMAGE HAS BEEN COMPILED WITH THE NEWEST LINUX KERNEL AVAILABLE FOR OUR BOXES.

WARNING: THIS IMAGE USES A NEW FILESYSTEM AND IT IS NOT COMPATIBLE WITH MULTIBOOT OR WITH OLD PERSONAL BACKUP.

Thats why I am cofused- Installing before BH 1.6.6- I guess that in the future doing bh Personal Backup will be normal without need to install anything more, but afeter made upgrade to BH 1.7.9- I was unable to make Personal Backup because path to PB "not Found" and then " no compatible".
I was forced to return to BH 1.6.6 repeating standard procedure with old duo.cfe

Now we mix SOLO CFE_SOLO.2.0
and duo cfe Rev 3.0

Hope duo cfe Rev 3.0 is one I need.Will try it and report result.
Once again thanks very much for helping me.

Quote from cazuela

this is the message that appeared to you , ¿ correct ???
then there is NO CONFUSION except in the head title of your first post.....
but in the warning it clearly states VU+ SOLO BOOT LOADER
so you need to pay attention to whether it is a vu DUO or a vu SOLO ,,you cannot mistake one for the other!!!!

Sorry but I never stated my STB is Vu+Solo- if you read my first post you'll see I wrote I have Vu+Duo.
Never minde , wht is important - upgrade my image and I am going to do this now.

Image upgrade failed again.
Received this messge:
"Sorry.Personal Backup found but is not compatible with the new firmware based on the new kernel"
Now when try to return to my old Image 1.6.6 , procedure is blocked on "programming" and stay on it .....How I can solve this situation , please

Image upgrade failed again.
Received this messge:
"Sorry.Personal Backup found but is not compatible with the new firmware based on the new kernel"
Now when try to return to my old Image 1.6.6 , procedure is blocked on "programming" and stay on it .....How I can solve this situation , please

This problem solved- but old BH Image 1.6.6 remain on the STB

In connection to the problem exposed in this thread, my question for BH Authors is:
Why kernels included in BH 1.6.6 and BH 1.6.7 and later BH versions are not compatible between them.
As I discovered this create problem mentioned in my above posts i.e. impossibility to make bh Personal Backup from previous installed version to any new one.
Does exist any remedy to solve this inconvenient, or not.
If not ,that means when passing from BH 1.6.6 to later versions, all settings must be created and set manually.
Please comment.