I've a problem similar to the one here: http://forum.proxmox.com/threads/23...-zfs-install-cannot-import-rpool-no-such-pool but for me is NOT due to some RAID metadata still present (I've zeroed the entire disk and also tried with a disk brand new) and that's why I've abandoned that thread and opened this new one. At boot I have: Code: Loading, please wait... Command: /sbin/zpool import -N rpool Message: cannot import 'rpool': no such pool available Error: 1 No pool imported. Manually import the root pool at the command prompt and then exit. Hint: Tyr: zpool import -R /root -N rpool BusyBox v1.22.1 .... / # If I do: Code: # zpool import pool: rpool id: 4282105346604124069 state: ONLINE action: The pool can be imported using its name or numeric identifier. config: rpool ONLINE sda2 ONLINE From Busybox I'm able to boot one time doing this: Code: # zpool import -d /dev/disk/by-id rpool -R /root # exit failed to mount root filesystem 'rpool/ROOT/pve-1' # exit (isn't strange I've to issue "exit" two times?) I've tried this, as suggested in previous thread Code: # zpool set cachefile= rpool # update-initramfs -k `uname -r` -u # reboot But the problem is not solved, I land in BusyBox again. Don't know if is relevant, but if from busybox I enter "exit" two times I have the second time: Code: Target filesystem doesn't have requeste /sbin/init mount: mounting /dev/ on /rot/dev failed: No such file or directory No init found. Try passing init= bootarg. modprobe: module ehci-orion not found in bodules.dep Busybox ... (initramfs) But I don't know if the "ehci-orion" stuff is a problem (once booted I don't see such a module used by the system) The MB is an Intel S2400SC, that has 8 HD bay, 4 connected with a "mini-sas to mini-sas" to onboard controller (set as AHCI mode, I guess the "C602"), the other with a "sata to mini-sas" (I guess the "C600"). I've the same problem in any bay. With lspci I have (leaving more or less only info about HD controller) Code: root@pve4:~# lspci | grep controller 00:16.0 Communication controller: Intel Corporation C600/X79 series chipset MEI Controller #1 (rev 05) 00:16.1 Communication controller: Intel Corporation C600/X79 series chipset MEI Controller #2 (rev 05) 00:1f.2 SATA controller: Intel Corporation C600/X79 series chipset 6-Port SATA AHCI Controller (rev 06) 09:00.0 Serial Attached SCSI controller: Intel Corporation C602 chipset 4-Port SATA Storage Control Unit (rev 06) and for kernel modules (removing for brevity what I think is not related, like IP stack) Code: root@pve4:~# lsmod Module Size Used by iscsi_tcp 20480 0 libiscsi_tcp 24576 1 iscsi_tcp libiscsi 53248 3 libiscsi_tcp,iscsi_tcp,ib_iser scsi_transport_iscsi 98304 4 iscsi_tcp,ib_iser,libiscsi snd_pcm 102400 0 lrw 16384 1 aesni_intel gf128mul 16384 1 lrw glue_helper 16384 1 aesni_intel snd_timer 32768 1 snd_pcm snd 86016 2 snd_timer,snd_pcm ablk_helper 16384 1 aesni_intel cryptd 20480 3 ghash_clmulni_intel,aesni_intel,ablk_helper joydev 20480 0 lpc_ich 24576 0 ioatdma 65536 0 dca 16384 1 ioatdma 8250_fintek 16384 0 wmi 20480 0 mac_hid 16384 0 autofs4 40960 2 zfs 2789376 7 zunicode 331776 1 zfs zcommon 57344 1 zfs znvpair 90112 2 zfs,zcommon spl 102400 3 zfs,zcommon,znvpair zavl 16384 1 zfs hid_generic 16384 0 usbkbd 16384 0 usbmouse 16384 0 ahci 36864 1 usbhid 49152 0 libahci 32768 1 ahci isci 135168 0 e1000e 233472 0 hid 118784 2 hid_generic,usbhid ptp 20480 1 e1000e libsas 81920 1 isci pps_core 20480 1 ptp scsi_transport_sas 45056 2 isci,libsas atl1c 49152 0 I started with 4 disks in RAID10 but since was unable to boot I did a lot of experiments. To have put things to the minimum, now I've just one WD in the bay (I've tried to move from the first bay to the second bay, since are under different controllers, but no luck) and I've tried ext4 (that works fine) and ZFS (that does not). At the moment I've only one HD (for ZFS raid0) and I boot / install proxmox from USB stick. Any help is very apreciated, if I can't solve soon I have to abandon the idea of using ZFS.