cannot boot freebsd
Jerry McAllister
jerrymc at msu.edu
Thu Nov 12 16:10:21 UTC 2009
On Thu, Nov 12, 2009 at 09:38:27AM -0600, Jesús Abidan wrote:
First, please send all messages to the freebsd-questions list and not
just to me. That is proper list etiquette, plus you will be able to
get responses from more than just me. Others may know more.
In other words, always do a 'reply all' on list email.
> read this:
>
> "First, be aware that all the information necessary to boot FreeBSD must be
> located within the first 1,024 cylinders of the hard disk. This is necessary
> for the FreeBSD boot manager to work; it means that when you partition the
> disk for FreeBSD using FIPS, either the root partition must be completely
> located within the first 1,024 cylinders or you can use a separate boot
> partition that is completely located in the first 1,024 cylinders. Use the
> "Start" and "End" cylinder readouts in FIPS to determine where your
> partitions start and end. If you choose the latter option, the root
> partition does not have to be completely located in the first 1,024
> cylinders. Note that "completely located" means that the partition has to
> both start and end below the 1,024th cylinder. Simply starting below the
> 1,024th cylinder is not good enough.
This is obsolete information for most computers with BIOS and disks
created later than about 1998. That really means all computers
functioning today. It is also obsolete for FreeBSD systems which
do not use BIOS to talk to the disk.
There are numerous web sites that explain this including some
documentation on the FreeBSD web site: http://www.freebsd.org/
////jerry
>
> http://www.informit.com/articles/article.aspx?p=32084&seqNum=4"
>
> as i see, do i need to create a partition(located in the first
> 1024cylinders) to BOOT from? (sorry)
>
> 2009/11/12 Jesús Abidan <jabidan at gmail.com>
>
> > no, it's not vista, is XP
> >
> > 2009/11/12 Jerry McAllister <jerrymc at msu.edu>
> >
> > On Wed, Nov 11, 2009 at 06:57:02PM -0600, Jesús Abidan wrote:
> >>
> >> > i did it like you say, but something is happening with my installation,
> >> it
> >> > boots always the first OS, i don't have any ideas for having a dual
> >> > system... argh!!
> >>
> >> Perchance, is your other system MS-Vista?
> >> As I mentioned in a previous response, I have heard of people
> >> having problems with dual booting with Vista and having to
> >> follow some other procedure for that. But, I haven't used Vista
> >> (and do not intend to) so you will have to do some archive searching
> >> to find those pieces of information.
> >>
> >> ////jerry
> >>
> >>
> >>
> >> >
> >> > 2009/11/11 Jerry McAllister <jerrymc at msu.edu>
> >> >
> >> > > On Wed, Nov 11, 2009 at 02:12:22PM -0600, Jesús Abidan wrote:
> >> > >
> >> > > > so, then i need to create 2 slices with gparted, install windows on
> >> the
> >> > > > first one, and install freebsd on the second one and label this
> >> partition
> >> > > > automatically by the installer (ad0s1, ad0s2, etc) and install the
> >> > > bootmgr?
> >> > >
> >> > > Yes, essentially except for those partition names.
> >> > >
> >> > > Create the two slices/primary partitions.
> >> > > Install the MS-Win in the first one. I think then MS will call it
> >> 'c:'
> >> > > Anyway, FreeBSD will think it is ad0s1.
> >> > >
> >> > > Then install FreeBSD in the second slice/primary partition. MS will
> >> not
> >> > > even know it is there. FreeBSD will call it ad0s2.
> >> > >
> >> > > During the install, that ad0s2 slice will be subdivided according to
> >> how
> >> > > you tell it into FreeBSD partitions with names like ad0s2a (for root)
> >> > > and ad0s2b (for swap), ad0s2d for whatever - maybe /tmp, ad0s2e for
> >> > > something else, such as /usr, etc.
> >> > >
> >> > > For my general purpose machines I usually subdivide in to
> >> > > the following partitions:
> >> > > a mounts as / eg: mount /dev/ad0s2a /
> >> > > b swap
> >> > > c describes the slice and is not a real partition
> >> > > d mounts as /tmp eg: mount /dev/ad0s2d /tmp
> >> > > e mounts as /usr etc
> >> > > f mounts as /var
> >> > > g mounts as /home or something similar
> >> > >
> >> > >
> >> > > For my systems that are single purpose central servers I tend to do
> >> this:
> >> > > a mounts as / everything but swap and afscache goes in root.
> >> > > b swap
> >> > > c slice description
> >> > > d /afscache
> >> > >
> >> > >
> >> > > If I have a second drive for scratch or work space I tend to do:
> >> > > a mounts as /work and uses up all the space except extra swap
> >> > > b used for additional swap
> >> > > c describes the slice
> >> > >
> >> > > The sizes of the various partition-subdivisions depends on the size
> >> > > of the disk and the use being made of the machine and what I want
> >> > > to install on it and how I want to handle backups.
> >> > >
> >> > > ////jerry
> >> > >
> >> > >
> >> > > >
> >> > > > 2009/11/11 Jerry McAllister <jerrymc at msu.edu>
> >> > > >
> >> > > > > On Wed, Nov 11, 2009 at 01:22:58PM -0600, Jesús Abidan wrote:
> >> > > > >
> >> > > > > > ok. the slices in freebsd are little tricky, i will check my
> >> > > installation
> >> > > > > > and send some feedback later.
> >> > > > >
> >> > > > >
> >> > > > > ?? FreeBSD slices are pretty straight forward. They are just
> >> the
> >> > > > > name of the 4 primary divisions of a disk - limited to 4 by BIOS.
> >> > > > > MS just calls them primary partitions instead of slices.
> >> > > > >
> >> > > > > The major difference is how they might be subdivided. MS does
> >> what it
> >> > > > > calls logical partitions. FreeBSD subdivisions are just called
> >> > > partitions.
> >> > > > >
> >> > > > > The fdisk(8) utility creates slices (or primary partitions in MS,
> >> > > though
> >> > > > > the
> >> > > > > FreeBSD fdisk is not very conversant with some of the new MS types
> >> so
> >> > > you
> >> > > > > may be better off using something else to create primary
> >> > > partitions/slices
> >> > > > > if other OSen are being accomodated). Slices (or primary
> >> partitions)
> >> > > are
> >> > > > > identified by numbers 1..4.
> >> > > > >
> >> > > > > The bsdlabel(8) utility in FreeBSD is what subdivides a slice in
> >> to
> >> > > > > partitions. It used to be that it was limited to 7 real
> >> partitions
> >> > > > > identified with letters a..h with the letter 'c' reserved to
> >> describe
> >> > > > > the whole slice and not usable as a real partition. Partition 'a'
> >> is
> >> > > > > normally root mounted as '/' and partition 'b' is used as swap.
> >> These
> >> > > > > two (a & b) are conventions and not enforced, except that some
> >> software
> >> > > > > may make these assumptions. My understanding is that the newest
> >> > > > > versions of FreeBSD (8.0) modify or remove the limit and you can
> >> have
> >> > > > > letters above 'h' and thus more subdivisions in a slice, but I
> >> haven't
> >> > > > > tried that yet.
> >> > > > >
> >> > > > > In FreeBSD, to create a filesystem from a partition, you run
> >> newfs(8)
> >> > > on
> >> > > > > it.
> >> > > > >
> >> > > > > ////jerry
> >> > > > >
> >> > > > > >
> >> > > > > > Thanks a lot.
> >> > > > > >
> >> > > > > > 2009/11/11 Jerry McAllister <jerrymc at msu.edu>
> >> > > > > >
> >> > > > > > > On Wed, Nov 11, 2009 at 12:27:13PM -0600, Jesús Abidan wrote:
> >> > > > > > >
> >> > > > > > > > i pressed f2 for freebsd and nothing happens... i pressed f1
> >> for
> >> > > > > windows.
> >> > > > > > > >
> >> > > > > > > > I install freebsd on the first partition and now it occurs
> >> the
> >> > > > > viceversa,
> >> > > > > > > i
> >> > > > > > > > cannot boot windows, does it have to be something with the
> >> order
> >> > > of
> >> > > > > the
> >> > > > > > > > partitions? i mean primary, logical o something like this?
> >> > > > > > >
> >> > > > > > > MS-Win should optimally be installed on the first primary
> >> > > partition.
> >> > > > > > > This is called 'slice 1' by FreeBSD. Then FreeBSD should be
> >> > > installed
> >> > > > > > > on slice 2.
> >> > > > > > >
> >> > > > > > > If the slices are not to your liking, then you may need to use
> >> some
> >> > > > > > > utility such as Parition Magic 7 (I had trouble with PM-8) or
> >> > > gparted
> >> > > > > > > to define the primary partitions/slices before you do any of
> >> the
> >> > > > > installs.
> >> > > > > > > But, still, MS-Win should be installed first and go in the
> >> first
> >> > > slice
> >> > > > > > > and FreeBSD later in another slice. That is because MS-Win
> >> doesn't
> >> > > > > play
> >> > > > > > > very well if installed later and/or in a different slice.
> >> > > > > > >
> >> > > > > > > When you install FreeBSD (after the MS-Win install) select
> >> > > installing
> >> > > > > > > the FreeBSD MBR (not none or default minimum). It should be
> >> > > smart
> >> > > > > > > enough to find both.
> >> > > > > > >
> >> > > > > > > I have heard some complaints about MS-Vista and having to do
> >> some
> >> > > > > > > other monkeying around to get an MBR to handle it correctly,
> >> but I
> >> > > > > > > don't know details and I do not (lucky me) have any Vista
> >> machines
> >> > > > > > > to joust with.
> >> > > > > > >
> >> > > > > > > ////jerry
> >> > > > > > >
> >> > > > > > >
> >> > > > > > > >
> >> > > > > > > > 2009/11/11 Jerry McAllister <jerrymc at msu.edu>
> >> > > > > > > >
> >> > > > > > > > > On Wed, Nov 11, 2009 at 11:02:35AM -0600, Jesús Abidan
> >> wrote:
> >> > > > > > > > >
> >> > > > > > > > > > Hi there, i have a problem here, i installed windows in
> >> mi
> >> > > box
> >> > > > > and i
> >> > > > > > > left
> >> > > > > > > > > a
> >> > > > > > > > > > partition for freebsd, i finished install of freebsd and
> >> > > > > installed
> >> > > > > > > the
> >> > > > > > > > > boot
> >> > > > > > > > > > mgr of freebsd but when i reboot only windows boots with
> >> f1
> >> > > > > pressed?
> >> > > > > > > how
> >> > > > > > > > > can
> >> > > > > > > > > > I make the system boots both?
> >> > > > > > > > >
> >> > > > > > > > > Not sure all of what you see, but if you literally mean
> >> that
> >> > > when
> >> > > > > > > > > you press F1 it always boots MS-Win, that is probably
> >> correct.
> >> > > > > > > > > You will have to press F2 or maybe F3 (depending in which
> >> slice
> >> > > you
> >> > > > > > > > > installed FreeBSD) to boot FreeBSD.
> >> > > > > > > > >
> >> > > > > > > > > I suspect you mean something a little different, but if
> >> so,
> >> > > > > > > > > please elaborate.
> >> > > > > > > > >
> >> > > > > > > > > ////jerry
> >> > > > > > > > >
> >> > > > > > > > >
> >> > > > > > > > > > _______________________________________________
> >> > > > > > > > > > freebsd-questions at freebsd.org mailing list
> >> > > > > > > > > >
> >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> >> > > > > > > > > > To unsubscribe, send any mail to "
> >> > > > > > > > > freebsd-questions-unsubscribe at freebsd.org"
> >> > > > > > > > >
> >> > > > > > >
> >> > > > >
> >> > >
> >>
> >
> >
More information about the freebsd-questions
mailing list