delete special file created with mknod

[SILVERSTAR]

Hi,

I am at the preliminary steps to create a new volume group.


I have done
mknod /dev/vginfydv/group/ c 64 0x0e000

and I see
crw-rw-r-- 1 root sys 64 0x00e000 Jun 23 16:04 vginfydv/group

that seems to be not correct, is it true ?


What I can do to delete that and create a new one.

Please it is urgent.

thanks
Angelo

[A. Clay Stephenson]

You are off by a factor of 10 (hex). Simply
"rm /dev/vginfydv/group" and recreate the node via mknod using the correct value "0x0e0000". Before you do that, however, do an "ls -l /dev/vg*/group" and make sure that 0x0e0000 is not in use by any other volume group. This minor device number must be unique.

[James R. Ferguson]

Hi:

Well, that's fine as long as your kernel 'maxvgs' is set to fourteen (14) or greater, since '0x0e' = decimal 14.

By default, the 'maxvgs' value is decimal 10.

You can remove the file with 'rm' if you goofed.

Regards!

...JRF...

[SILVERSTAR]

are you sure to command to use is rm and notrmsf ?

thanks
Angelo

[Victor BERRIDGE]

Hi Angelo,
In your case you use rm...


All the best
Victor

[A. Clay Stephenson]

The command is rm. Back in the dim mists of time before there were special commands like insf and rmsf, real UNIX admins only had mknod and rm. In a few special cases, you must use insf and rmsf to create device nodes (notably tape drives) because there are more options than there are low-order bits in the minor device numbers but for LVM rm/mknod will do everything you need.