copying just / (not /tmp, /usr, etc) (rsync -x failed)
jhary at unsane.co.uk
Thu Dec 6 07:26:28 PST 2007
Konstantinos Pachnis wrote:
> James Harrison wrote:
>> On Wed, 2007-12-05 at 10:41 -0500, Jerry McAllister wrote:
>>> On Tue, Dec 04, 2007 at 05:38:20PM -0700, Steve Franks wrote:
>>>> I have / on one slice, and [usr,tmp,var] on others. I want to move
>>>> just / to a new disk, which seemed to be what rsync -x ("do not cross
>>>> filesystems") was intended for. It failed, however, as df shows 20k
>>>> blocks in /, and rsync filled up the target slice with 50k blocks, so
>>>> obviously it blew right past the 'end' of / - did I miss something? Is
>>>> there no other way except to umount [tmp,usr,var]?
>>> I would use dump/restore.
>>> Build the filesystem in the new disk partition with fdisk, bsdlabel
>>> and newfs as needed. Then mount the new partition somewhere -
>>> mkdir /newpart
>>> mount /dev/ad1s1a /newpart
>>> (presuming new disk is ad1, slice is 1, partition is a)
>>> Doesn't hurt to do an fsck on it here before writing to it, but it
>>> probably isn't really needed.
>>> Then, run the dump/restore
>>> cd /newpart
>>> dump 0af - / | restore -rf -
>>> This will get all of / as you want. The other mountpoints for /tmp, /usr
>>> and /var will be copied, but not the contents of those filesystems. You
>>> probably want that.
>> Everyone's recommending dump/restore for copying file systems, and
>> there's something that I've never really been clear on.
>> The nice thing about rsync is that it's network aware. Can dump dump a
>> file system across a network?
Not following the rest of the thread so sorry if a duplicate answer.
you can easily dump to a file across a network if you have ssh configured.
dump -f - /dev/ad1s1 | ssh user at remotehost "cat >
Dump can also talk to remote tape devices using rmt apparently but I've
never tried this.
>> freebsd-questions at freebsd.org mailing list
>> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
> If you want to perform network backups, you should consider using a
> network aware backup solution such as Bacula or Amanda.
> freebsd-questions at freebsd.org mailing list
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
More information about the freebsd-questions