Re: back to "Drive ID Changed"

[Todd Gruhn <tgruhn2%gmail.com@localhost>]

I just executed:

gpt create wd1

I got:
  gpt: /dev/rwd1: Device already contains a GPT. Destroy it first.

Aparrently part of this already done with gpt...






On Mon, May 31, 2021 at 8:42 AM Todd Gruhn <tgruhn2%gmail.com@localhost> wrote:
>
> Here is my fstab.  It still does not work. Does the entire fstab need to be
> rewritten? I found gpt in section 8. I believe my system (and all drives)
> are booted by a UEFI menu that comes up when the machine restarted.
>
>
> # NetBSD /etc/fstab
> # See /usr/share/examples/fstab/ for more examples.
> /dev/wd0a        /    ffs    rw         1 1
> /dev/wd0e        /usr    ffs    rw         1 2
> /dev/wd0f        /var    ffs    rw         1 2
> # /dev/wd0b        none    swap    sw,dp         0 0
>
> /dev/wd0b    none    swap    sw        0 0
>
> tmpfs        /tmp    tmpfs    rw,-m=1777,-s=ram%10
> kernfs        /kern    kernfs    rw
> ptyfs        /dev/pts    ptyfs    rw
> procfs        /proc    procfs    rw
> /dev/cd0a        /cdrom    cd9660    ro,noauto
> tmpfs        /var/shm    tmpfs    rw,-m1777,-sram%25
>
> # ROOT.a    /        ffs    rw,log            1 1
> # ROOT.b swap        swap    sw            0 0
>
> ROOT.a=NetBSD_9.2    /    ffs    rw,noatime    1 1
> ROOT.b=NetBSD_swap    none    swap    sw,dp
>
>
>
>
>
> On Mon, May 31, 2021 at 3:43 AM Thomas Mueller <mueller6725%twc.com@localhost> wrote:
> >
> > from Todd Gruhn:
> >
> > > I know nothing about GPT. How do I know I can do this?
> >
> > > On Sun, May 30, 2021 at 6:40 PM RVP <rvp%sdf.org@localhost> wrote:
> >
> > > > On Sun, 30 May 2021, Todd Gruhn wrote:
> >
> > > > > I got back to this. I still cant get it
> > > > > Here is the link to a message from David Brownlee:
> >
> > > > > https://mail-index.netbsd.org/netbsd-users/2020/09/28/msg025785.html
> >
> > > > > It totally slipped my mind. I have since updated to NetBSD-9.2.
> > > > > I still cant get anything to work here...
> >
> > > > If you have GPT, then you can just use the GPT labels:
> >
> > > > $ fgrep NAME /etc/fstab
> > > > NAME=NetBSD_9.2         /               ffs     rw,noatime      1 1
> > > > NAME=NetBSD_swap        none            swap    sw,dp
> > > $
> >
> > > -RVP
> >
> > Rod Smith was perhaps my first reference on GPT: http://rodsbooks.com
> >
> > Rod Smith explains GPT, wrote a program, gdisk (gptfdisk).
> >
> > NetBSD uses gpt in the base system as does DragonFlyBSD; FreeBSD has their own gpart which partitions for both GPT and MBR.
> >
> > GPT labels provide a dependable, consistent way to identify disk partitions, more dependable than /dev/sd*, /dev/wd*, /dev/dk* which can vary from one boot or USB stick insertion to the next.
> >
> > With GPT, there is no distinction between primary and logical partitions as with MBR, and no need for traditional BSD disklabels, which I am glad to be rid of.
> >
> > GPT default allows 128 partitions on a disk, which is usually more than enough.
> >
> > Tom
> >
> >