ZFS [Solved]Migrate into another disk with other os

Zar Marco · Sep 28, 2022

Hi all, this is my situation:

Code:

➜  ~ zpool list -v
NAME                                   SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP    HEALTH  ALTROOT
bsdpool                                944G  9.26G   935G        -         -     0%     0%  1.00x    ONLINE  -
  diskid/DISK-0385079B115D00656692p4   944G  9.26G   935G        -         -     0%  0.98%      -    ONLINE
gpool                                  298G  7.74G   290G        -         -     0%     2%  1.00x    ONLINE  /mnt/uno
  diskid/DISK-2140JY447104p1           298G  7.74G   290G        -         -     0%  2.59%      -    ONLINE

where bsdpool is pool of freebsd and gpool ghostbsd

Code:

➜  ~ zfs list -t filesystem                                                       
NAME                   USED  AVAIL     REFER  MOUNTPOINT
bsdpool               9.25G   905G       96K  /bsdpool
bsdpool/ROOT          7.57G   905G       96K  none
bsdpool/ROOT/default  7.57G   905G     7.57G  /
bsdpool/tmp            208K   905G      208K  /tmp
bsdpool/usr           1.68G   905G       96K  /usr
bsdpool/usr/home       153M   905G      153M  /usr/home
bsdpool/usr/ports      807M   905G      807M  /usr/ports
bsdpool/usr/src        760M   905G      760M  /usr/src
bsdpool/var            884K   905G       96K  /var
bsdpool/var/audit       96K   905G       96K  /var/audit
bsdpool/var/crash       96K   905G       96K  /var/crash
bsdpool/var/log        348K   905G      348K  /var/log
bsdpool/var/mail       152K   905G      152K  /var/mail
bsdpool/var/tmp         96K   905G       96K  /var/tmp
gpool                 7.74G   281G       96K  legacy
gpool/ROOT            7.57G   281G       96K  legacy
gpool/ROOT/default    7.57G   281G     7.57G  /mnt/uno
gpool/tmp              148K   281G      148K  /mnt/uno/tmp
gpool/usr              170M   281G       96K  /mnt/uno/usr
gpool/usr/home         169M   281G      169M  /mnt/uno/usr/home
gpool/usr/ports         96K   281G       96K  /mnt/uno/usr/ports
gpool/usr/src           96K   281G       96K  /mnt/uno/usr/src
gpool/var              480K   281G       96K  /mnt/uno/var
gpool/var/audit         96K   281G       96K  /mnt/uno/var/audit
gpool/var/crash         96K   281G       96K  /mnt/uno/var/crash
gpool/var/mail          96K   281G       96K  /mnt/uno/var/mail
gpool/var/tmp           96K   281G       96K  /mnt/uno/var/tmp

there are two datasets

I would like to move ghost on disk contain freebsd, because I would like use only one partition.
I had already tried yesterday but something was wrong.
I had create snaphots for all ghost dataset and I move with zfs send/receive and after I made rollback.
I used the way I moved btrfs installations.

What I wrong?

W.hâ/t · Sep 28, 2022

Do you want to be able to boot both Os?
If so you will need gpart(8) and boot0cfg(8)
Backing up and reinstalling seems to be the easiest way.

Zar Marco · Sep 28, 2022

Ok, I had hope that I can migrate similar to btrfs

So how can I, for example, create backup of ghostbsd and after install it on pre-existing partition contain dataset of freebsd?

W.hâ/t · Sep 29, 2022

I have difficulties understanding what you want to accomplish.
If you just want to move the data then zfs(8) is your friend.

Code:

zfs snapshot pool1/dataset@backup
zfs send pool1/dataset@backup | zfs receive pool2/dataset

Be careful when using the -R flag.

Zar Marco · Sep 29, 2022

Very simple, I would like to have one only zfs partition with 2 or 3 os inside it. And that they are bootable

W.hâ/t · Sep 29, 2022

W.hâ/t said:
If so you will need gpart(8) and boot0cfg(8)
Backing up and reinstalling seems to be the easiest way.

Well this is one way.

Zar Marco · Sep 29, 2022

Thanks, I'll try

Zar Marco · Nov 18, 2022

I'm going to reopen this thread because I would your advices for move my freebsd fresh install on disk with arch/void/opensuse with zfs.
There are my disks:

Code:

┌[zar_marco@arch-zfs] [/dev/pts/1]
└[~]> sudo fdisk -l                                                                                             
Disk /dev/nvme0n1: 931,51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: WDS100T1X0E-00AFY0                   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: E7F8F894-3F81-11ED-95C0-C1AE74582F40

Dispositivo      Start       Fine    Settori  Size Tipo
/dev/nvme0n1p1    2048    1050623    1048576  512M EFI System
/dev/nvme0n1p2 1050624 1953523711 1952473088  931G Solaris root



Disk /dev/sda: 476,94 GiB, 512110190592 bytes, 1000215216 sectors
Disk model: 3JX013N       
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 33553920 bytes
Disklabel type: gpt
Disk identifier: CFE94F95-823B-11D1-A78E-416829E56C70

Dispositivo   Start       Fine   Settori   Size Tipo
/dev/sda1        40     532519    532480   260M EFI System
/dev/sda2    532520     533543      1024   512K FreeBSD boot
/dev/sda3    534528    4728831   4194304     2G FreeBSD swap
/dev/sda4   4728832 1000214527 995485696 474,7G FreeBSD ZFS

zpool list -v

Code:

└[~]> zpool list -v                 
NAME                                           SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP    HEALTH  ALTROOT
rpool                                          928G  62.2G   866G        -         -     0%     6%  1.00x    ONLINE  -
  nvme-WDS100T1X0E-00AFY0_2140JY447104-part2   931G  62.2G   866G        -         -     0%  6.70%      -    ONLINE
zroot                                          472G  2.73G   469G        -         -     0%     0%  1.00x    ONLINE  /mnt/var
  usb-HFM512GD_3JX013N_CNA5N81771120615Y-0:0   475G  2.73G   469G        -         -     0%  0.57%      -    ONLINE

zfs list

Code:

└[~]> zfs list -t filesystem       
NAME                    USED  AVAIL     REFER  MOUNTPOINT
rpool                  62.2G   837G       96K  none
rpool/arch             35.8G   837G       96K  none
rpool/arch/home        20.0G   837G     18.4G  legacy
rpool/arch/root        15.8G   837G     14.7G  /
rpool/condivise         276K   837G      116K  /condivise
rpool/tumbleweed       10.8G   837G       96K  none
rpool/tumbleweed/home   829M   837G      719M  legacy
rpool/tumbleweed/root  9.99G   837G     7.30G  /
rpool/void             15.6G   837G       96K  none
rpool/void/home        4.29G   837G     2.64G  legacy
rpool/void/root        11.3G   837G     9.24G  /
zroot                  2.73G   455G       96K  /mnt/var/zroot
zroot/ROOT             1.23G   455G       96K  none
zroot/ROOT/default     1.23G   455G     1.23G  /mnt/var
zroot/tmp               216K   455G      144K  /mnt/var/tmp
zroot/usr              1.50G   455G       96K  /mnt/var/usr
zroot/usr/home         12.9M   455G     12.8M  /mnt/var/usr/home
zroot/usr/ports         759M   455G      759M  /mnt/var/usr/ports
zroot/usr/src           760M   455G      760M  /mnt/var/usr/src
zroot/var               768K   455G       96K  /mnt/var/var
zroot/var/audit          96K   455G       96K  /mnt/var/var/audit
zroot/var/crash          96K   455G       96K  /mnt/var/var/crash
zroot/var/log           288K   455G      192K  /mnt/var/var/log
zroot/var/mail           96K   455G       96K  /mnt/var/var/mail
zroot/var/tmp            96K   455G       96K  /mnt/var/var/tmp
┌[zar_marco@arch-zfs] [/dev/pts/1]

I had try to create subvol for various dataset of freebsd and with send/receive I tried to move on nvme0n1p2, but after this shift I was unable to boot my linux distros. How can I do it?

I would like move freebsd because at the moment this is on external USB disk

The problem is also I must migrate efi partition as on freebsd is on fat16, on linux in fat32

Zar Marco · Nov 20, 2022

Ok I've solved.
I had create snapshots and move in another pool with send/receive.
I had copy file from freebsd boot/efi to efi on fat32.
Setted bootfs in my new root pool, modified /boot/loader.conf with openzfs instead zfs and installed openzfs packages