New 64-bit Fedora Will Not Mount Similar 32-bit Filesystem

[Alchemist]

2012/11/4 Alan Feuerbacher <alanf00 at comcast.net>

> On 11/4/2012 1:10 PM, Tim wrote:
>
>  Firstly, it was already doing "auto," as far as I'm aware, so that's
>> pretty much redundant.  What's really missing is *which* partition to
>> try and mount on sdc.
>>
>>      Device Boot      Start         End      Blocks   Id  System
>>> /dev/sdc1   *        2048      206847      102400   83  Linux
>>> /dev/sdc2         1026048  2930276351  1464625152   8e  Linux LVM
>>>
>>
>> The small sdc1 is, most likely, a boot partition, which you can ignore.
>>
>
> That's right. sdc2 contains the data I want to retrieve.
>
>  You want to be trying to mount sdc2.
>>
>> However, that's LVM, not a plain partition, and I'm fairly certain that
>> you want to use the LVM tools to mount it.  And, I'm very certain that
>> you're going to have problems if it uses the same volume names as your
>> new drive that you're running from.  The simplest solution will probably
>> be to rename your old volumes before you attempt to mount them.
>>
>
> That sounds very reasonable. Unfortunately, after looking at the man page
> for lvm and its associated sub-programs, and trying a number of them, I
> can't find anything that looks like it might work.
>
> The basic problem is that the lvm tools don't seem to recognize sdc2 as an
> LVM partition. I don't understand why, because that disk was formatted by
> the Fedora installer. It was a completely vanilla installation, so far as I
> know. I'm still at a loss here.
>
>  So, look into managing LVM volumes, then get back to the list when you
>> get stuck again.  (It's ages since I've tried anything with LVM, it's
>> probably changed since then, and I've probably forgotten what I did.)
>>
>
> Anything you can remember could be very helpful.
>
>  Future hint:  Next time you create LVM volumes and partitions, put
>> something unique into their names.  A date, a name, or a number...
>>
>
> Well, whatever is there was chosen by the Fedora installer when I
> installed the 32-bit system some days ago.
>
>  But if you never intend to try and span across several discs, which
>> brings about its own set of hazards (one failure on any disc, and all of
>> them becomes wrecked), I'd advise to completely avoid LVM on your next
>> installation.
>>
>
> I more or less tried that on my old 32-bit system. I installed a new disk
> and installed Fedora on a non-LVM partition. It could not see the LVM
> partition on the older disk -- same problem as I have now.
>
> Thanks for your help.
>
>
Ok lets try

shell# pvs

you must see line /dev/sdc2 and its VG name

shell# vgscan
shell# vgchange -a y "VG name from pvs output"
shell# lvscan
here goes your ACTIVE "/dev/***" output
shell# mnt "/dev/***" /mnt/fedora32




>  Alan
>
>
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