On Sun, 2 Aug 2009, Patrick O'Callaghan wrote:
> On Sun, 2009-08-02 at 12:54 -0500, Mikkel L. Ellertson wrote:
> > Bazooka Joe wrote:
> > > Is there a way to combine these 2 commands to cut my time in half?
> > >
> > > VBoxManage internalcommands converttoraw file.vdi file.raw
> > > then I have to run
> > > dd if=file.raw of=/dev/sdb
> > >
> > > -thx
> > >
> > You can can command on the same command in several ways. It depends
> > on what you put between the command.
> >
> > ; - always run the next command.
> > && - run the second command only if the first command is successful.
> > || - run the second command if the first one fails.
>
> How is this going to reduce his total time? The commands are still
> running sequentially.
i'd bump up the blocksize of that dd command. IIRC, the default
blocksize for dd is 512 bytes -- painfully small and resulting in lots
and lots of little writes. crank up the blocksize significantly and
that second command should speed up noticeably.
rday
--
========================================================================
Robert P. J. Day Waterloo, Ontario, CANADA
Linux Consulting, Training and Annoying Kernel Pedantry.
Web page: http://crashcourse.ca
Twitter: http://twitter.com/rpjday
"Kernel Newbie Corner" column @ linux.com: http://cli.gs/WG6WYX
========================================================================
--
fedora-list mailing list
fedora-list@xxxxxxxxxx
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
