Date: Mon, 4 Oct 2010 07:52:21 -0700 From: Robert <traveling08@cox.net> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: OT: fdisk Message-ID: <20101004075221.7709740c@asus64> In-Reply-To: <20101004163225.34099bb8.freebsd@edvax.de> References: <201010031319.o93DJaDE005892@mail.r-bonomi.com> <20101003100051.23e2cc77@asus64> <20101003194045.849d6419.freebsd@edvax.de> <20101003142935.3d751862@asus64> <20101004123413.8e7cf859.freebsd@edvax.de> <20101004070858.3a101fa3@asus64> <20101004163225.34099bb8.freebsd@edvax.de>
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On Mon, 4 Oct 2010 16:32:25 +0200
Polytropon <freebsd@edvax.de> wrote:
> On Mon, 4 Oct 2010 07:08:58 -0700, Robert <traveling08@cox.net> wrote:
> > I have now a free 1TB drive for use. It is formatted as UFS. Should
> > I remove formatting before I dd the 500GB drive to it?
>
> Not needed, as you're going to use it under the control of FreeBSD.
> After formatting and mounting it, let's say as /mnt, use dd (or
> ddrescue) to first get an 1:1 copy of the source disk.
>
It is being performed even as we "speak".
>
>
> > I tried the above process and here is what I have.
> >
> > [root@asus64] ~# mdconfig -a -t vnode -u 10 -f /250extra/disk.img
> > [root@asus64] ~# mount -o ro /dev/md10 /mnt
> > mount: /dev/md10 : Invalid argument
>
> Of course. :-)
>
>
>
> > [root@asus64] ~# mount_ntfs -o ro /dev/md10 /mnt
> > mount_ntfs: /dev/md10: Input/output error
>
> This indicates that the NTFS seems to be damaged and prevents
> mount_ntfs from mounting it. Start with "baby steps": Is there
> a valid partition table?
>
> # fdisk /dev/md10
[root@asus64] ~# fdisk /dev/md10
******* Working on device /dev/md10 *******
parameters extracted from in-core disklabel are:
cylinders=7648 heads=255 sectors/track=63 (16065 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=7648 heads=255 sectors/track=63 (16065 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
sysid 7 (0x07),(NTFS, OS/2 HPFS, QNX-2 (16 bit) or Advanced UNIX)
start 63, size 976773105 (476939 Meg), flag 0
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 15/ sector 63
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
>
> You should now get a partition table.
>
> Did you create disk.img by dd'ing da0 or da0s1? This may matter.
da1...but not the entire disk.
>
>
>
> > [root@asus64] ~# ls -l /dev/md*
> > crw-r----- 1 root operator 0, 129 Oct 4 06:43 /dev/md10
> > crw-r----- 1 root operator 0, 130 Oct 4 06:43 /dev/md10s1
> > crw------- 1 root wheel 0, 66 Oct 1 14:43 /dev/mdctl
> > [root@asus64] ~# mount -o ro /dev/md10s1 /mnt
>
> Good. At least a bit.
Is this the way to mount it, not _ntfs?
>
>
>
> > [root@asus64] ~# ls -l /mnt
> > total 0
> > [root@asus64] ~# df -h
> > Filesystem Size Used Avail Capacity Mounted on
> > <snip>
> > /dev/ad12s1d 226G 59G 149G 28% /250extra
> > /dev/md10s1 451G 32G 383G 8% /mnt
> > ^^^^ ^^^
> > [root@asus64] ~# ls -la /mnt
> > total 0
>
> Hmmm... you dd'ed the WHOLE disk to disk.img? Does the size look
> reasonable?
No. I was trying to just get the data to a 250GB drive. Now I am doing
the 500GB to a 1TB drive and will follow up when complete.
Robert
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