Unable to mount linprocfs on CURRENT

[minimike]

Hi there,

I've tried to setup a Debian kFreeBSD Jail using debootstrap from Ports. My Testbox has got FreeBSD 9 CURRENT installed. ZFS v28 Hyperpower Yeah

My Problem is that I couldn't mount linprocfs currently

freebsd-one# mount -t linprocfs linproc /services/pgsql-one/proc/
mount: linproc : Operation not supported by device

The linux module is already loaded

 1   16 0xffffffff80200000 b58e80   kernel
 2    1 0xffffffff80d59000 212c48   zfs.ko
 3    2 0xffffffff80f6c000 7200     opensolaris.ko
 4    1 0xffffffff81012000 4ee8     fdescfs.ko
 5    1 0xffffffff81017000 28efb    linux.ko

Is that a known Bug?

 

[minimike]

I got it.

I've recompiled my kernel and added linprocfs inside the /etc/make.conf I thought first linux.ko is enough

 

[ls4680]

7.3 v 8.2

I have two FreeBSD boxes one is 7.3 and the other is 8.2

The command I was trying was:
[cmd=]mount -t linprocfs linproc /compat/linux/proc[/cmd]

It works on my 7.3 system but on 8.2 I get:

mount: linproc : Operation not supported by device

I am "fairly" sure I set them up the same (as far as /etc/make.conf or kernel is concerned).

The 8.2 system is:

kernel: CPU: AMD Athlon(tm) II X4 640 Processor (3013.35-MHz 686-class CPU)
kernel: FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs

I remember reading somewhere that there might be an issue with 32-bit processor vs. 64-bit processor. I recently swapped out the motherboard on the 7.3 system but as I recall I built the kernel with a 32-bit processor installed.

 

[ls4680]

I found the difference between my 7.3 and 8.2 system that was keeping me from mounting linproc. On the 8.2 in /etc/rc.conf I had

kern_securelevel_enable="YES"

Everything now works by adding the mount into /etc/fstab

linprocfs               /compat/linux/proc linprocfs rw         0       0