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* [linux-lvm] Strange behavior
@ 2017-11-18 16:26 Georges Giralt
  0 siblings, 0 replies; only message in thread
From: Georges Giralt @ 2017-11-18 16:26 UTC (permalink / raw)
  To: LVM general discussion and development

Hello !

Ubuntu 16.04.3 LTS with all updates applied.

Mdadm gets updated.

Then grub is updated to reflect the changes.

Got this message :

root@menfin:/etc/lvm# update-grub
Création du fichier de configuration GRUB…
/usr/sbin/grub-probe : attention : Impossible de trouver le volume 
physique « pv0 ». Certains modules risquent de manquer dans l'image de 
Image Linux trouvée : /boot/vmlinuz-4.4.0-98-generic
Image mémoire initiale trouvée : /boot/initrd.img-4.4.0-98-generic
Image Linux trouvée : /boot/vmlinuz-4.4.0-97-generic
Image mémoire initiale trouvée : /boot/initrd.img-4.4.0-97-generic
Image Linux trouvée : /boot/vmlinuz-3.19.0-66-generic
Image mémoire initiale trouvée : /boot/initrd.img-3.19.0-66-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin

The pv0 device is (according to the lvm conf) :

        physical_volumes {

                 pv0 {
                         id = "gcjLSH-3lL5-NjBq-QdYh-vddQ-pwlg-UmEiZs"
                         device = "/dev/md1"     # Hint only

                         status = ["ALLOCATABLE"]
                         flags = []
                         dev_size = 612173696    # 291,907 Gigabytes
                         pe_start = 384
                         pe_count = 74728        # 291,906 Gigabytes

and as per blkid :

/dev/md0: UUID="a27ec3c6-3f64-4133-a600-500ffd37ef6a" TYPE="ext4"
/dev/md1: UUID="gcjLSH-3lL5-NjBq-QdYh-vddQ-pwlg-UmEiZs" TYPE="LVM2_member"

I checked mdstat :

root@menfin:/etc/lvm# cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] 
[raid4] [raid10]
md1 : active raid1 sdb2[2] sdc2[0] sda2[1]
       306087040 blocks [3/3] [UUU]

md0 : active raid1 sdb1[2] sdc1[1] sda1[0]
       6291000 blocks [3/3] [UUU]

unused devices: <none>

So everything is correct.

What do you think of that ?

Thanks for your help and advice  !

"If a man empties his purse into his head, no man can take it away from him.
An investment in knowledge always pays the best interest"

Benjamin Franklin.

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