How best to go from Fedora 20 to fedora 21 on SSD?

Hello All,
Looking for some good advice on the move to Fedora 21.
Up until Fedora 19 I had been running two spinning disks, and alternating between the two at each upgrade, doing a clean install, using a separate Home partition.
I now have Fedora 20 on an SSD, and wonder if a clean install is going to impinge on the wear levelling count, as it normally involves repartitioning. I suspect that repartitioning does affect the wear levelling count, but not really sure.
The alternate approach is to use Fedup, but the advice has generally been to do a clean install.
Is Fedup reliable enough to go this route?
Any Good advice gratefully received.

Cheers,
Terry

In a very very small way there will be a loss of data life.

Personally I use clean installs.

Unless you have the worst ssd on the planet it won't matter which you do.

Originally Posted by jefro In a very very small way there will be a loss of data life. Personally I use clean installs. Unless you have the worst ssd on the planet it won't matter which you do.

When I installed Fedora 20 on the SSD I was also using a new motherboard, and ended up having a couple attempts at it as a result of the secure boot requirements.
That process added about 18 to the wear levelling count, out of a reported max of 99, according to the SMART data report on the disc, hence I am somewhat wary. I certainly wouldn't want to add that sort of number again.
I would like to hear a bit more about the reliability of the current Fedup before I decide how to tackle this.

I think I have what is supposed to be one of the better SSDs, a Samsung 840 Pro.

Thanks for your advice.

Cheers,
Terry

Why wouldn't you just use fedup and do an in-place upgrade? Works like a charm.

EDIT:

I see you asking about fedup in your second post.

This is my third concurrent fedup (18 --> 19, 19 --> 20, and 20 --> 21). Many people on my team have also utilized fedup during the same period of time, with the same 100% success rate that I have had.

With this 20 --> 21 upgrade, there were a few packages that I had to remove, and a repo I needed to disable before completing the upgrade. Otherwise, the upgrade was smooth as silk. It downloaded, and installed everything perfectly.

"a Samsung 840 Pro." is highly rated. The warranty for it is pretty good as I recall. Some few hundred gig a day as I recall maybe.

All ssd's get slower with age. Their reporting scheme isn't that reliable.

They all fail but by the time they fail you want a new one anyway. Just run it like a regular disk unless you are running a massive database on it or hitting it with top web access from thousands of people.

Originally Posted by GaWdLy Why wouldn't you just use fedup and do an in-place upgrade? Works like a charm. EDIT: I see you asking about fedup in your second post. This is my third concurrent fedup (18 --> 19, 19 --> 20, and 20 --> 21). Many people on my team have also utilized fedup during the same period of time, with the same 100% success rate that I have had. With this 20 --> 21 upgrade, there were a few packages that I had to remove, and a repo I needed to disable before completing the upgrade. Otherwise, the upgrade was smooth as silk. It downloaded, and installed everything perfectly.

Thanks for that report. I haven't seen many reports of Fedup usage to be confident in using it.
Your experience suggests there shouldn't be much to worry about.

Cheers,
Terry

Be prepared - see my sigline.
I've had fedup work once (first time), fail twice. After the last failure I went back to full installs. I keep a separate /home, so that makes things a little easier, but you still have to handle manual packages.

I too never worry about the life of SSDs - they'll probably outlast my usage of them.

As I said, the only failures seen this time around were 'soft' failures, and all of the concerned third - party repos and packages that needed to be Removed before the upgrade, and installed right afterwards.

That isn't severe enough to cause me any concerns, honestly.

In the interests of completeness, I just did a fedup of an (obviously) old P4 system I don't care at all about. Took a while, but seems to have completed successfully.
Couple of complaints about missing gpg keys for rpmfusion - which aborts the whole shooting match - but as mentioned above, these are "soft" errors.

Firefox even spat the "well, this is embarrassing" message on restart. All good so far.
Er, not a SSD system BTW ...

I've been doing Fedup since it was around. Usually the only problem I have is with using proprietary Nvidia drivers. Usually takes an extra round of yum to fix things after the upgrade.