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Forum Discussion
Migration from RN104 to RN426
Last night I upgraded my reliable old RN104 to a RN426. I thought it would be worthwhile documenting what happened for future reference. In short everything went quite well, but with a few issues tha...
StrontiumSteel wrote:
Not entirely sure why my shiny new RN426 needed such open-heart surgery, but I guess it's because I moved the disks from the old 104. Of course for a complete linux newbie doing ssh,apt-get, etc would possibly be a show-stopper.
The RN426 is an x86 platform, the RN104 is arm. Many apps are platform specific, and won't work after migration.
While the NAS does convert the packages it uses to the new platform (which is a neat trick btw), it doesn't convert the packages used by any installed apps. Normally I recommend uninstalling the apps before migration, and then reinstalling them afterwards.
Thanks for the reply - obviously I wasn't clear, but that is exactly what I did. There were no apps installed at all on the old 104 pre-migration. It was just after I migrated when I wanted to install Plex that the problem occured. I wish I knew why!?
StrontiumSteel wrote:
Thanks for the reply - obviously I wasn't clear, but that is exactly what I did. There were no apps installed at all on the old 104 pre-migration. It was just after I migrated when I wanted to install Plex that the problem occured. I wish I knew why!?
It is a puzzle, and I don't think anyone here had run into this issue since that 2017 thread (until you of course). Migration from arm->x86 is of course tricky, since all the arm packages in the OS partition need to be replaced. The good news is that you were able to resolve it.
BTW, normally the OS partition of an x86 NAS is btrfs (like the data volume). The arm NAS use ext for the OS partition. When you migrate the disks from arm->x86, the NAS won't convert the file system, so your OS partition will still be ext. Personally I don't think this is a problem (and given the way btrfs handles free space, using ext for a 4 GB volume might actually be preferrable). Just something you should be aware of.
I just ran an experiment moving a volume from an RN102 to an RN312, both running OS6.10.3, and this did not occur. So, I don't think is a systemic problem, just a one-off for this user, who fortunately has the Linux knowlege to fix it.
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