Failed To Import Pool 'rpool'

[TechLineX]

Hello,

I have the problem Failed to import pool 'rpool'.
After I manually execute: zpool import rpool and then exit, everything appears to start

The problem appears not at every boot..

pveversion -v
proxmox-ve: 4.4-86 (running kernel: 4.4.49-1-pve)
pve-manager: 4.4-13 (running version: 4.4-13/7ea56165)
pve-kernel-4.4.35-1-pve: 4.4.35-77
pve-kernel-4.4.49-1-pve: 4.4.49-86
lvm2: 2.02.116-pve3
corosync-pve: 2.4.2-2~pve4+1
libqb0: 1.0.1-1
pve-cluster: 4.0-49
qemu-server: 4.0-110
pve-firmware: 1.1-11
libpve-common-perl: 4.0-94
libpve-access-control: 4.0-23
libpve-storage-perl: 4.0-76
pve-libspice-server1: 0.12.8-2
vncterm: 1.3-2
pve-docs: 4.4-4
pve-qemu-kvm: 2.7.1-4
pve-container: 1.0-97
pve-firewall: 2.0-33
pve-ha-manager: 1.0-40
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u3
lxc-pve: 2.0.7-4
lxcfs: 2.0.6-pve1
criu: 1.6.0-1
novnc-pve: 0.5-9
smartmontools: 6.5+svn4324-1~pve80
zfsutils: 0.6.5.9-pve15~bpo80

2 disks in raid 1 (ZFS) - fresh install

Already tested:

a) edit /etc/default/grub and add "rootdelay=10" at GRUB_CMDLINE_LINUX_DEFAULT (i.e. GRUB_CMDLINE_LINUX_DEFAULT="rootdelay=10 quiet") and then issue a # update-grub

b) edit /etc/default/zfs, set ZFS_INITRD_PRE_MOUNTROOT_SLEEP='4', and then issue a "update-initramfs -k 4.4.*-pve -u"

c) setting "ZPOOL_IMPORT_PATH" in /etc/default/zfs to "/dev/disk/by-vdev:/dev/disk/by-id" and regenerating the initramfs with "update-initramfs -u" to force mounting with IDs

All -> No effect. Every second boot is in the menue

 

[fabian]

try a bigger root delay than 10 seconds. with LVM, we have seen hardware that requires up to 30 seconds to reliable be available in the initramfs