using /sbin/gpart to add GPT volume

[n dhert]

In jan 2009 when /sbin/gpt still existed, this is what I did on a multi-boot
test PC, after creatng unallocated spac, booting into my freebsd partition:

# sysinstall
Disk name:      ad0                                    FDISK Partition
Editor
DISK Geometry:  5005 cyls/255 heads/63 sectors = 80405325 sectors (39260MB)
Offset       Size(ST)        End     Name  PType       Desc  Subtype
Flags
         0         63         62        -     12     unused        0
        63   29414952   29415014    ad0s1      4 NTFS/HPFS/QNX        7
  29415015    3116610   32531624    ad0s4      4     ext2fs      131
  32531625         62   32531686        -     12     unused        0
  32531687   14313853   46845539    ad0s3      8    freebsd      165
  46845540   33559785   80405324    ad0s2      4 extended DOS, LBA       15
  80405325      12915   80418239        -     12     unused        0
ad0s4 was the unallocated space
# gpt create -f /dev/ad0s4
# gpt show /dev/ad0s4
    start     size  index  contents
        0        1         PMBR
        1        1         Pri GPT header
        2       32         Pri GPT table
       34  3116543
  3116577       32         Sec GPT table
  3116609        1         Sec GPT header

# gpt add /dev/ad0s4
/dev/ad0s4p1 added
# gpt show /dev/ad0s4
    start     size  index  contents
        0        1         PMBR
        1        1         Pri GPT header
        2       32         Pri GPT table
       34  3116543      1  GPT part - FreeBSD UFS/UFS2
  3116577       32         Sec GPT table
  3116609        1         Sec GPT header
# newfs /dev/ad0s4p1
# mkdir /ghome
# mount /dev/ad0s4p1 /ghome
# df -k
Filesystem   1024-blocks    Used   Avail Capacity  Mounted on
/dev/ad0s3a       380654  170430  179772    49%    /
devfs                  1       1       0   100%    /dev
/dev/ad0s3e       317166      56  291738     0%    /tmp
/dev/ad0s3f      5144698 3167822 1565302    67%    /usr
/dev/ad0s3d       571118   28080  497350     5%    /var
/dev/ad0s4p1     1504908       4 1384512     0%    /ghome
My problem is, what are the equivalent instructions using  gpart ???




2011/10/10 illoai at gmail.com <illoai at gmail.com>

> On 10 October 2011 11:33, n dhert <ndhertbsd at gmail.com> wrote:
> > I have a FreebSD 8.2 machine with 12 1-Tb disks used for making backups.
> > now I try to create
> > # gpart create -s GPT ad0s4
> > gpart: provider: Device not configured
>
> (NB I do not have a multi-boot system with an
> MBR scheme on it, so I'm not clear on the pre-
> cise details)
> You want some variation of
> # gpart add -t freebsd-ufs ad0[s4]
>
> "create" is for the disk-wise scheme
> "add" is for the individual slices/partitions
>
> Again, I haven't played with gpart on an MBR disk,
> so be careful.
>
> Aso, if you're muddling with the boot disk, you may
> have to work in single-user mode.
>
> --
> --
>