Date: Sat, 5 Oct 2019 10:44:13 +0200 From: Polytropon <freebsd@edvax.de> To: Kurt Hackenberg <kh@panix.com> Cc: freebsd-questions@freebsd.org Subject: Re: Guides for ZFS Full backup to NFS drive and restore from NFS drive Message-ID: <20191005104413.39e3c081.freebsd@edvax.de> In-Reply-To: <9177b014-9041-f51e-1856-b6dbdec4afc1@panix.com> References: <CAHieY7S5W1NnQp9e=Dk3y_d1bdDgVwyw-3LTK%2BfeoKSDaGDegg@mail.gmail.com> <9177b014-9041-f51e-1856-b6dbdec4afc1@panix.com>
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On Fri, 4 Oct 2019 18:38:49 -0400, Kurt Hackenberg wrote: > On 2019-10-04 17:20, Alejandro Imass wrote: > > > Hi there FreeBSD folk! > > > > Are there any easy to follow guides to completely backup a FreeBSD system > > to an NFS drive and then restore the complete system from the backup in the > > NFS drive? > > > > I don't have much NFS expertise but it shouldn't be that complicated. > > > > I found this guide but not exactly what I'm looking for: > > > > https://www.dan.me.uk/blog/2012/08/05/full-system-backups-for-freebsd-systems-using-zfs/ > > > > Is there a utility or something to make this process less painful? > > Do you mean to recreate the file tree on the NFS server, by copying each > FreeBSD file to an NFS file? That might not work perfectly. The initial question doesn't seem to sound like that was the objective. > I believe NFS doesn't implement everything the FreeBSD filesystem does. > It might not include sparse files, special files, extended file metadata > (access control, "flags")... > > If you use ZFS, you probably should use its backup/restore mechanisms, > as in that article. For good results, it probably does have to be that > complicated. Definitely. It is possible (and probably the way to go in this scenario) to write the "zfs send" result to a file that is accessible via NFS, first for backup, then have a rescue system handy (for example, a FreeBSD live system CD, DVD, or USB stick) to boot the system from again, make any neccessary preparations, and then run "zfs receive" with the previously mentioned file via NFS as source. So basically it's what you do with traditional dump and restore via _files_ stored somewhere else on the network, but with ZFS tools. :-) Or did I misunderstand the question? > If you don't use ZFS, then I suggest that you look at the programs > "dump" and "restore". They have man pages. The FreeBSD Handbook also has > some information about backup/restore for non-ZFS: > > https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/backup-basics.html Additional valuable information here: http://www.wonkity.com/~wblock/docs/html/backup.html -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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