Dump Restore on ZFS root system
Vincent Hoffman
vince at unsane.co.uk
Tue Feb 7 11:23:08 UTC 2012
On 07/02/2012 11:00, dick wrote:
> I run a ZFS on root FreeBSD system. I know I can backup with snapshots
> but I want a dump/restore action because I want to transfer this
> system to a UFS virtual FreeBSD machine.
> My question is: will dump / (root) make a dump of *ALL* other
> directories?
>
Dump works at the filesystem level and will not work on a zfs filesystem
[root at banshee /backup/local/zfs]# dump -b 64 -f - ./
dump: ./: unknown file system
I'd use tar or cpio or pax or something.
On a UFS filesystem dump will only dump the filesystem specified and
will not cross mountpoints.
Vince
> yanta# df -h
> Filesystem Size Used Avail Capacity
> Mounted on
> zroot 56G 335M 55G 1% /
> devfs 1.0K 1.0K 0B
> 100% /dev
> zroot/tmp 56G 42M 55G 0% /tmp
> zroot/usr 60G 4.7G 55G 8% /usr
> zroot/usr/home 58G 2.4G 55G 4% /usr/home
> zroot/usr/ports 56G 253M 55G 0%
> /usr/ports
> zroot/usr/ports/distfiles 56G 291M 55G 1%
> /usr/ports/distfiles
> zroot/usr/ports/packages 55G 21K 55G 0%
> /usr/ports/packages
> zroot/var 56G 571M 55G 1% /var
> zroot/var/crash 55G 23K 55G 0%
> /var/crash
> zroot/var/db 56G 337M 55G 1% /var/db
> zroot/var/db/pkg 55G 3.7M 55G 0% /var/db/pkg
> zroot/var/empty 55G 21K 55G 0% /var/empty
> zroot/var/log 55G 827K 55G 0%
> /var/log
> zroot/var/mail 55G 22K 55G 0%
> /var/mail
> zroot/var/run 55G 53K 55G 0%
> /var/run
> zroot/var/tmp 55G 143K 55G 0% /var/tmp
> devfs 1.0K 1.0K 0B
> 100% /var/named/dev
>
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