how to backup QNX OS

QNX Newsgroups (Archives) qdn.public.newuser
1

Hi

I have some questions when I backup QNX OS by using Ghost Software.

Everytime I backup QNX OS, it will backup whole harddisk, example: my
harddisk is 20GB, so the backup image is also 20GB. But when I backup
Windows or Linux, it only backup data part, much more less than the acture
Hard disk capacity.

So is it a way or other method to backup only data portion for QNX OS, and
make the image size smaller.

I don’t want to use tape, it cost me too much time and cost is high.

Thanks

edward

2

Kinda. There isn’t a turnkey way of doing it (yet). However, a little
reverse engineering (read the system architecture guide, have a peek at
/usr/include/sys/fs_qnx.h and play with “spatch” or “hd” and look
through /.bitmap) you can locate the file system bitmap table.

Armed with that knowledge, you could easily make a program that calls
open() on /dev/hd0t79 and copies the bitmap along with all the allocated
blocks. It’s the same trick used by Ghost and other such utilities.
Heck, you could probably write a QNX based Ghost (that fits on a floppy!).

Daryl Low

new in QNX wrote:

Hi

I have some questions when I backup QNX OS by using Ghost Software.

Everytime I backup QNX OS, it will backup whole harddisk, example: my
harddisk is 20GB, so the backup image is also 20GB. But when I backup
Windows or Linux, it only backup data part, much more less than the acture
Hard disk capacity.

So is it a way or other method to backup only data portion for QNX OS, and
make the image size smaller.

I don’t want to use tape, it cost me too much time and cost is high.

Thanks

edward

3

There is a blurb in the SysAdmin manual:
http://www.qnx.com/developer/docs/qnx_6.1_docs/sysadmin/docs/recovery.html#9
97623

Cheers,
Steve

“new in QNX” <test1@cdmamail.com> wrote in message
news:b5ng4q$ark$1@inn.qnx.com…

Hi

I have some questions when I backup QNX OS by using Ghost Software.

Everytime I backup QNX OS, it will backup whole harddisk, example: my
harddisk is 20GB, so the backup image is also 20GB. But when I backup
Windows or Linux, it only backup data part, much more less than the acture
Hard disk capacity.

So is it a way or other method to backup only data portion for QNX OS, and
make the image size smaller.

I don’t want to use tape, it cost me too much time and cost is high.

Thanks

edward