Creating large files in HP11.0

[Peter Remirez]

HI,
What is the command used in creating large files on a HP11.0?

I tried doing a dd command, but it produced the errors below:
pghc0001@penang[91]% dd if=/dev/zero of=/tmp/BIG bs=1024 count=2500000
/dev/zero: No such file or directory
dd: cannot open /dev/zero
pghc0001@penang[92]% dd if=/dev/null of=/tmp/BIG bs=1024 count=2500000
0+0 records in
0+0 records out

pghc0001@penang[93]% df -k /tmp
/tmp (/dev/vg00/lvol9 ) : 58689128 total allocated Kb
58666336 free allocated Kb
22792 used allocated Kb
0 % allocation used

pghc0001@penang[94]% dd if=/dev/vg00/lvol9 of=/tmp/BIG bs=1024 count=2500000
/dev/vg00/lvol9: Permission denied
dd: cannot open /dev/vg00/lvol9

Could anyone tell me where did I go wrong?

Thanks

[Ollie R]

Hi,

By default, there is no /dev/zero with HP-UX 11.00, but there is with 11i.

It can be created as follows:

mknod /dev/zero c 3 0x000004

Ollie.

[Ollie R]

Hi,

You might also want to look at the "prealloc" command (which is much easier to use than "dd"!).

Ollie.