Re: Problem accessing lvm on nvme drive

[Robert McBroom via users <users@xxxxxxxxxxxxxxxxxxxxxxx>]

On 7/13/25 5:08 PM, Barry wrote:

On 13 Jul 2025, at 21:32, Robert McBroom via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:



During boot I get the message

block nvme0n1: No UUID available providing old NGUID

When I try to mount the lvm I get the message

~# mount /dev/mapper/fedora /sd1
mount: /sd1: fsconfig system call failed: /dev/mapper/fedora Can't lookup blockdev.
      dmesg(1) may have more information after failed mount system call.

The lvm has two physical volumes on /dev/nvme0n1p5 and /dev/nvme0n1p6

The lvm /dev/mapper/fedora has a different OS and boots and runs as expected. Another fedora f42 installation accesses the lvm with no problems.

How do I get this installation of f42 to access the lvm?

What does lsblk -f report?

nvme0n1                                                                                          
     
    ├─nvme0n1p1
│                                                                                                
     
    ├─nvme0n1p2
    │         ntfs              Space           
    6C8EF2E161A652CA                                      
    ├─nvme0n1p3
    │         vfat     FAT32                    
    663E-94E3                               500.1M    16% /boot/efi
    ├─nvme0n1p4
    │         xfs                               
    241ab641-a6b2-4979-9864-9d1d08db2d61                  
    ├─nvme0n1p5
    │         LVM2_mem LVM2 001                 
    v1gXoi-sKLO-fS0t-oKxo-en1J-7vOu-BH8Hal                
    └─nvme0n1p6

          LVM2_mem LVM2 001                  lQ45eA-ARYv-JiVX-JRjR-eyHl-NCXO-vkB2m0               

 ~# lvmdiskscan -l

      WARNING: only
        considering LVM devices
      
        0 LVM
        physical volume whole disks

 0 LVM physical volumes

pvs and vgs just return. on the system that sees the drives I get

nvme0n1                                                                                                    
├─nvme0n1p1                                                                                                
├─nvme0n1p2    ntfs                 Space            6C8EF2E161A652CA                                      
├─nvme0n1p3    vfat        FAT32                     663E-94E3                                             
├─nvme0n1p4    xfs                                   241ab641-a6b2-4979-9864-9d1d08db2d61                  
├─nvme0n1p5    LVM2_member LVM2 001                  v1gXoi-sKLO-fS0t-oKxo-en1J-7vOu-BH8Hal                
│ └─fedora_
│              xfs                                   43c752f2-3963-4859-a4d6-8669482d51fb                  
└─nvme0n1p6    LVM2_member LVM2 001                  lQ45eA-ARYv-JiVX-JRjR-eyHl-NCXO-vkB2m0                
  └─fedora_
               xfs                                   43c752f2-3963-4859-a4d6-8669482d51fb                  

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