Jaz 2GB and DOS

Hi.

I have a Jaz 2 GB drive. I can read/write/access the disks okay using the
QNX file system.

I can read/write/access 1 GB disks using QNX and DOS on the 2 GB Jaz drive.

I can’t access 2GB DOS disk. I have made sure that these are FAT-16
(partitioned on QNX system using fdisk).

What’s the trick to getting the 2GB DOS disk to work?

TIA

Augie

I run 2GB Jaz with regular native QNX4 filesystem. I don’t recall any trick
being required. I did put a partition on the disk (covering all cylinders) and
a mount -p. Then, IIRC, just a plain old dinit. In fact, I use this for
backup and the weekly backup does a dinit on the newly rotated in Jaz 2GB disk.

Augie Henriques wrote:

Hi.

I have a Jaz 2 GB drive. I can read/write/access the disks okay using the
QNX file system.

I can read/write/access 1 GB disks using QNX and DOS on the 2 GB Jaz drive.

I can’t access 2GB DOS disk. I have made sure that these are FAT-16
(partitioned on QNX system using fdisk).

What’s the trick to getting the 2GB DOS disk to work?

TIA

Augie

I am only able to do this using Fsys.dos, beta sw I got from QNX a long time ago

Augie Henriques wrote:

Hi.

I have a Jaz 2 GB drive. I can read/write/access the disks okay using the
QNX file system.

I can read/write/access 1 GB disks using QNX and DOS on the 2 GB Jaz drive.

I can’t access 2GB DOS disk. I have made sure that these are FAT-16
(partitioned on QNX system using fdisk).

What’s the trick to getting the 2GB DOS disk to work?

TIA

Augie

Jack Rosenbloom
Webcraft Mail Systems (division of Vertis)
Manager, Advanced Process Control Engineering
4371 County Line Road
Chalfont PA. 18914
Phone: (215) 997-5269
FAX: (215) 997-5455
E-Mail: jrosenbloom@vertisinc.com

“Dean Douthat” <ddouthat@faac.com> wrote in message
news:3AE5D696.C0DF787B@faac.com

I run 2GB Jaz with regular native QNX4 filesystem. I don’t recall any
trick
being required. I did put a partition on the disk (covering all
cylinders) and
a mount -p. Then, IIRC, just a plain old dinit. In fact, I use this for
backup and the weekly backup does a dinit on the newly rotated in Jaz 2GB
disk.

Yes, I can use the Jaz 2GB with no problems using the QNX 4 file system.
But I can’t take a new formatted disk for Windows, which reads fine on a
Windows machine, but not in QNX 4 using the Dosfsys driver.

Dosfsys does create a /dos/c directory, but you can’t do an ‘ls’ of /dos/c.

Why?

TIA

Augie

Augie Henriques wrote:

Hi.

I have a Jaz 2 GB drive. I can read/write/access the disks okay using
the
QNX file system.

I can read/write/access 1 GB disks using QNX and DOS on the 2 GB Jaz
drive.

I can’t access 2GB DOS disk. I have made sure that these are FAT-16
(partitioned on QNX system using fdisk).

What’s the trick to getting the 2GB DOS disk to work?

TIA

Augie

Augie Henriques <augiehenriques@hotmail.com> wrote:
: But I can’t take a new formatted disk for Windows, which reads fine on a
: Windows machine, but not in QNX 4 using the Dosfsys driver.
: Dosfsys does create a /dos/c directory, but you can’t do an ‘ls’ of /dos/c.
: Why?

Sounds like it is a FAT32 file system. Also, do not use Dosfsys or
Fsys.dos, both are deprecated/unsupported … please use the 4.25
Fatfsys utility now for accessing all local DOS/FAT disks …

“John Garvey” <jgarvey@qnx.com> wrote in message
news:9c6u9d$sva$1@nntp.qnx.com

Augie Henriques <> augiehenriques@hotmail.com> > wrote:
: But I can’t take a new formatted disk for Windows, which reads fine on a
: Windows machine, but not in QNX 4 using the Dosfsys driver.
: Dosfsys does create a /dos/c directory, but you can’t do an ‘ls’ of
/dos/c.
: Why?

Sounds like it is a FAT32 file system. Also, do not use Dosfsys or
Fsys.dos, both are deprecated/unsupported … please use the 4.25
Fatfsys utility now for accessing all local DOS/FAT disks …

Thanks.

I missed the ‘Fatfsys’ news some where. I just installed QNX 4 on two new
systems here, using the March 2001 CD, which still uses ‘Dosfsys’.

Thanks again.

Augie