On 2/3/20 2:56 PM, Patrick O'Callaghan wrote:
On Mon, 2020-02-03 at 12:17 -0800, Mike Wright wrote:
Some quick notes about lvm. The essence of LVM is the volume group
(VG). Volume groups contain logical volumes (LV). Volume groups are
defined by specifying the raw devices, the physical volumes (PV), that
provide the storage. In order to attach a PV to a VG the raw device
/dev/sdX must be tagged as a PV. Until that is done (pvcreate) a raw
device cannot be part of a VG. Once within a VG the raw device isn't
really mountable because the filesystem on it is created at the LV
level, not the raw device level.
Yes, I already understand that much in theory.
Now as to sd5: try the command "pvs". It will show the tagged (defined)
PVs AND it will show which, if any, VGs that they belong to.
$ sudo pvs
PV VG Fmt Attr PSize PFree
/dev/sda3 fedora_localhost-live lvm2 a-- <128.00g <17.80g
/dev/sda4 fedora_localhost-live lvm2 a-- <16.00g <16.00g
$
If sda5 is NOT listed by "pvs" then your mount environment is mixed
raw/LVM.
That appears to be the case.
Any way you look at it, you may mount both the raw device and
the LV at the same point but only the most recent will be visible. I
also have a hunch that mounting a raw device that is part of a VG is an
invitation to disaster.
It wouldn't surprise me. How can I unravel this (short of a complete
reinstallation)? I'm not enamoured of LVM and would be quite happy to
revert to basic partitioning, but if that isn't feasible I'm willing to
move forward to LVM-only if that's what it takes.
I just went through the beginning of this thread. The issue was that
attempting to mount /dev/fedora_localhost-live/home required a password.
Are you sure there's a problem?
Your mount output shows root, swap, home. / and swap are on LVs and
/home is /dev/sda5. As far as the system is concerned
/dev/fedora_localhost-live/home is just another partition that, as any
other, requires root privilege to mount.
Unless I'm really missing something here...
:m
PD: Ten paciencia chapulín. LVM podría ser tu amigo.
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