Pb LVM

Device /dev/sda excluded by a filter.

Solutions

dd if=/dev/zero of=/dev/sda count=1 bs=512

Ou (à tester)

sgdisk --zap-all -- /dev/sda

# vgs
  /dev/sdb: open failed: No medium found
  VG      #PV #LV #SN Attr   VSize    VFree
  vg_data   1   1   0 wz--n- <931.51g 930.55g
  vgos      1   4   0 wz--n- <237.52g  79.82g

# lsblk
NAME             MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                8:0    0 931.5G  0 disk
└─sda1             8:1    0 931.5G  0 part
  └─vg_data-data 254:5    0   976M  0 lvm       
nvme0n1          259:0    0 238.5G  0 disk          
├─nvme0n1p1      259:1    0   488M  0 part /boot
├─nvme0n1p2      259:2    0   488M  0 part /boot/efi
└─nvme0n1p3      259:3    0 237.5G  0 part       
  ├─vgos-root    254:0    0  46.6G  0 lvm  /   
  ├─vgos-swap    254:1    0  15.3G  0 lvm  [SWAP]
  ├─vgos-var     254:2    0  55.9G  0 lvm  /var
  └─vgos-home    254:3    0    40G  0 lvm  /home

Dans notre cas nous avons un /dev/sdb fantome

# fdisk /dev/sdb

Welcome to fdisk (util-linux 2.33.1).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

fdisk: cannot open /dev/sdb: No medium found

Solution temporaire

# mv /dev/sdb .
# vgs
  VG      #PV #LV #SN Attr   VSize    VFree
  vg_data   1   1   0 wz--n- <931.51g 930.55g
  vgos      1   4   0 wz--n- <237.52g  79.82g

Voir :

• https://access.redhat.com/solutions/68745
• http://www.ceus-now.com/how-to-deal-with-gentoo-failing-to-boot-due-to-locking-type-initialisation-failed-on-checkroot/

• Vérifier si /var n'est pas monté en lecture seul (voir locking_dir dans lvm.conf)
• Utiliser l'option --ignorelockingfailure

Exemple 1

vgchange --ignorelockingfailure -P -a y

Exemple 2

pvs --config 'global { locking_dir = "/tmp" } 

Source : https://documentation.commvault.com/commvault/v11_sp16/article?p=31713.htm

Cause

If the virtual machine where a File Recovery Enabler for Linux is installed is based on the same VM template or image as the guest virtual machines or instances that the FREL is browsing, then live browse of files and folders on the guest VMs might fail as a result of UUID conflicts with physical volumes (PVs) on the FREL.

To resolve this issue, change the UUIDs of the PVs on the FREL:

List all the physical volumes:

pvs -o --noheadings

Change the UUID for each PV listed in step 1.

pvchange -f --uuid pv_name --config "global {activation=0}"

List all the volume groups:

vgs -o vg_name,vg_uuid,pv_name --noheadings

Run the following commands to change the UUIDs and rename each of the volume groups listed in step 3 and activate the changed configuration:

vgchange --uuid vg_name --config "global {activation=0}"

vgrename old_vg_name new_vg_name

vgchange -ay new_vg_name

touch /plop

touch: ne peut faire un touch sur `/plop': Système de fichiers accessible en lecture seulement

blockdev --setrw /dev/sda
mount -o remount,rw /

mount: périphérique de type bloc/dev/VolGroup00/LogVol00 est protégé en écriture, on le monte en lecture seulement

pvdisplay

  Locking type -1 initialisation failed.

Exemple de commande en lien, à tester

vgchange --ignorelockingfailure -P -a y
vgchange -a y VolGroup-1
blockdev --rereadpt /dev/sda

A voir aussi

lvm.conf

/etc/lvm/lvm.conf
locking_type = 1
locking_dir = "/var/lock/lvm"

lvchange -p rw
 
lvm vgchange -ayl --ignorelockingfailure
lvm vgmknodes --ignorelockingfailure
if touch -c / >& /dev/null

vgscan --mknodes