Linuxulator: running one's own small Linux in FreeBSD?

[Thomas Mueller]

from Damjan Jovanovic <damjan.jov at gmail.com>:

> On Sat, Feb 13, 2021 at 6:31 AM Thomas Mueller <mueller6722 at twc.com> wrote:
        
> > from JB: 
       
> > > If it's just a local directory, you can use `sysctl' to tell the kernel
> > what the emulation path is:   
       
> > > sysctl compat.linux.emul_path=/foo/bar

> > > Then restart the `linux' service.
       
> > How do I restart the 'linux' service?

> > I am familiar with "/etc/rc.d/mountd restart", but don't think I could do
> > "etc/rc.d/linux restart" (or linuxd).
       
       
> $ sudo service linux describe
> Enable Linux ABI
        
        
> > I tried "sysctl -a | grep "linux" from FreeBSD and got nothing; also
> > sysctl compat.linux.emul_path
> > gave me "Unknown oid" error.
       

> $ sysctl compat.linux.emul_path 
> compat.linux.emul_path: /compat/linux
        
> $ kldstat|grep lin
>  2    1 0xffffffff8247b000     fb58 linprocfs.ko
>  3    5 0xffffffff8248b000     d770 linux_common.ko
>  6    1 0xffffffff824aa000     6618 linsysfs.ko
> 11    4 0xffffffff83408000    12d30 linuxkpi.ko
> 12    3 0xffffffff8341b000    13f30 linuxkpi_gplv2.ko
> 26    1 0xffffffff834ee000    3c490 linux.ko
> 27    1 0xffffffff8352b000    35cb0 linux64.ko
        
> This is on FreeBSD 12.2.

> I think you're missing some of the base packages, and didn't load "kldload
> linux".

So I guess Linux service is restarted by "service linux restart"?

kldstat on my Freebsd showed only linux.ko, linus_common.ko and linux64.ko .

I had not yet actually attempted to run my small Linuxes in FreeBSD or NetBSD, not ready yet.

I still would need such things as init scripts, proc fs, /etc/fstab and other configuration files.

FreeBSD Handbook online is not sufficiently detailed.

Tom