Le 2024-07-12 19:18, Peter Boy a écrit :
Am 11.07.2024 um 16:56 schrieb François Patte
<francois.patte@xxxxxxxxxxxxxxxxxxxx>:
Le 2024-07-10 19:55, Mike Wright a écrit :
On 7/10/24 10:48, François Patte wrote:
Le 2024-07-10 18:26, Mike Wright a écrit :
On 7/10/24 09:19, François Patte wrote:
Le 2024-07-10 18:05, Mike Wright a écrit :
On 7/10/24 08:33, François Patte wrote:
Le 2024-07-10 15:12, Mike Wright a écrit :
On 7/10/24 01:15, François Patte wrote:
Bonjour,
Bonjour, François,
Now, if someone could tell me how to mount an lvm2_member, I
will be happy! Indeed, my personnal data are on a disk from
the f36 install which is a RAID1 member and an lvm2_member. If
I try:
mount /dev/sdd2
I get "unknown filesystem linux_raid_member"
I can bypass this error typing
mount /dev/md5
But the error is now: "unknown filesystem lvm2_member" and I
don't know how to bypass this error.
When a partition is added manually to a system by mounting the
system
needs a hint as to what to do. I think what you need here is to
activate the LVM member: vgchange -y. If this is to be
permanent you
would need to use -ay. Little command, tons of options. Man
vgchange.
I read this on some posts on the internet... but if I do something
like this will it change something on this partition making it
unusable with the f36 install as the /home partition.... I want to
keep this f36 install untill f40 will be completely configured
(because I use it to work!)
I do not think it modifies the partition in any way whatsoever. It
just advises the o/s what to do with it.
OK. I tried and nothing has changed... What can I do!
Go Canes, in a reply to me, suggested pvscan|vgscan|lvscan. This is
most likely the missing ingredient. Sorry I missed that.
No success with pv|vg|lv-scan it is as if this lvm2_member does not
exist, except if I want to mount it!
I don't know if the following is relevant to your problem (I don't
have the full context here), but:
LVM defaults have been changed recently. If there is a file in
/etc/lvm/devices, all vg…/lv… commands just use those partitions which
are listed in that file. All other partitions, specifically those
which are new in a system, are not included in the processing. You
either have to add the device to that list or use an option in any of
those commands.
See: https://bugzilla.redhat.com/show_bug.cgi?id=2247872
Thank you! This was helpfull!
So, here what I have done:
1- As said in the given bugzilla link, I ran the command
"vgimportdevices -a" and the external lvm devices were added to the file
/etc/lvm/devices/system.devices
2- Now pvs shows the physical volumes and VG groups. And lvscan shows
the added logical volumes as inactive.
3- All that's left to do is: activate them with "vgchange -ay" and a
link for every VG is created in /dev/mapper.... so: "mount
/dev/mapper/<VG name> /mnt"
Thank you so much!
--
François Patte
UFR de mathématiques et informatique
Laboratoire CNRS MAP5, UMR 8145
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)6 7892 5822
http://www.math-info.univ-paris5.fr/~patte
--
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