Date: Sat, 7 Nov 2015 09:00:54 -0553.75 From: "William A. Mahaffey III" <wam@hiwaay.net> To: FreeBSD Questions !!!! <freebsd-questions@freebsd.org> Subject: linux emulation question Message-ID: <563E10DC.2050804@hiwaay.net>
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I am trying to get linux emulation up & running on my newly provisioned
FreeBSD 9.3R 'dev-box'. I downloaded & installed the basics (I think) of
linux CentOS-6 emulation & got the following during install:
[root@devbox, /etc, 8:28:00am] 624 % pkg install -y linux-c6
Updating FreeBSD repository catalogue...
FreeBSD repository is up-to-date.
All repositories are up-to-date.
pkg: linux-c6 has a missing dependency: linux-c6-flashplugin
The following 6 package(s) will be affected (of 0 checked):
New packages to be INSTALLED:
linux-c6: 0.3
linux-c6-libsndfile: 1.0.20_2
linux-c6-flac: 1.2.1_3
linux_base-c6: 6.6_6
linux-c6-libogg: 1.1.4_2
linux-c6-libvorbis: 1.2.3_2
The process will require 172 MiB more space.
21 MiB to be downloaded.
Fetching linux-c6-0.3.txz: 100% 1 KiB 1.6kB/s 00:01
Fetching linux-c6-libsndfile-1.0.20_2.txz: 100% 219 KiB 224.2kB/s 00:01
Fetching linux-c6-flac-1.2.1_3.txz: 100% 229 KiB 235.0kB/s 00:01
Fetching linux_base-c6-6.6_6.txz: 100% 21 MiB 3.2MB/s 00:07
Fetching linux-c6-libogg-1.1.4_2.txz: 100% 14 KiB 14.4kB/s 00:01
Fetching linux-c6-libvorbis-1.2.3_2.txz: 100% 131 KiB 134.3kB/s 00:01
Checking integrity... done (0 conflicting)
[1/6] Installing linux_base-c6-6.6_6...
sysctl: unknown oid 'compat.linux.osrelease'
linuxulator is not (kld)loaded, exiting
pkg: PRE-INSTALL script failed
[1/6] Extracting linux_base-c6-6.6_6: 100%
+++ Some programs may need linprocfs, please add it to /etc/fstab! +++
Running linux ldconfig...
ELF binary type "3" not known.
/compat/linux/sbin/ldconfig: Exec format error
[2/6] Installing linux-c6-libogg-1.1.4_2...
[2/6] Extracting linux-c6-libogg-1.1.4_2: 100%
ELF binary type "3" not known.
/compat/linux/sbin/ldconfig: Exec format error
pkg: POST-INSTALL script failed
[3/6] Installing linux-c6-flac-1.2.1_3...
[3/6] Extracting linux-c6-flac-1.2.1_3: 100%
ELF binary type "3" not known.
/compat/linux/sbin/ldconfig: Exec format error
pkg: POST-INSTALL script failed
[4/6] Installing linux-c6-libvorbis-1.2.3_2...
[4/6] Extracting linux-c6-libvorbis-1.2.3_2: 100%
ELF binary type "3" not known.
/compat/linux/sbin/ldconfig: Exec format error
pkg: POST-INSTALL script failed
[5/6] Installing linux-c6-libsndfile-1.0.20_2...
[5/6] Extracting linux-c6-libsndfile-1.0.20_2: 100%
ELF binary type "3" not known.
/compat/linux/sbin/ldconfig: Exec format error
pkg: POST-INSTALL script failed
[6/6] Installing linux-c6-0.3...
Message from linux_base-c6-6.6_6:
This software is based in part on the work of the FreeType Team.
See <URL:http://www.freetype.org/>.
Installation of the Linux base system is finished. The Linux kernel
mode, which must be enabled for Linux binaries to run, is now
enabled. Linux mode can be enabled permanently with the linux_enable
variable of rc.conf(5).
----------------------
You should enable Linux mode with the linux_enable variable of rc.conf(5).
Depending on the version of FreeBSD you are using you may have to increase
the emulated linux version via compat.linux.osrelease=2.6.18 in
sysctl.conf(5). Check via "sysctl compat.linux.osrelease" that it shows a
lower version number before setting it.
----------------------
If you want to use shared memory in Linux applications, you need to set up
a link from /dev/shm to a suitable place, e.g. by adding the following line
to /etc/devfs.conf (takes effect on each boot):
link /tmp shm
To make use of NIS you have to adjust yp.conf and nsswitch.conf in
/compat/linux/etc/ accordingly. For example:
Set your yp-server and yp-domainname in yp.conf:
domainname my.yp.domainname
ypserver my.yp.server
Let your lists for hosts, passwd and group be resolved via nsswitch.conf:
passwd: files nis
shadow: files nis
group: files nis
hosts: files dns nis
WARNING: doing work which needs to chroot into the linux base may not work.
In such cases (e.g. cross-development) you are better suited with a
linux_dist
port.
i.e. each package reported some sort of failure during install. I
kldload'ed the relevant kernel modules & tried to initialize as per the
linux(4) man-page:
/compat/linux/sbin/ldconfig -r /compat/linux
it crashed, so I rebooted & tried again:
[root@devbox, ~, 8:46:15am] 341 % cd /etc/
[root@devbox, /etc, 8:46:33am] 342 % kldstat
Id Refs Address Size Name
1 24 0xffffffff80200000 1611688 kernel
2 1 0xffffffff81812000 25aec8 zfs.ko
3 2 0xffffffff81a6d000 84e8 opensolaris.ko
4 2 0xffffffff81a76000 c19b8 linux.ko
5 1 0xffffffff81b38000 12470 tmpfs.ko
6 1 0xffffffff81c12000 52f2 fdescfs.ko
7 1 0xffffffff81c18000 9fd4 linprocfs.ko
[root@devbox, /etc, 8:46:36am] 343 % /compat/linux/sbin/ldconfig -r
/compat/linux
FATAL: kernel too old
Segmentation fault (core dumped)
[root@devbox, /etc, 8:46:53am] 344 % uname -a
FreeBSD devbox 9.3-RELEASE-p24 FreeBSD 9.3-RELEASE-p24 #0: Sat Aug 22
01:54:44 UTC 2015
root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
[root@devbox, /etc, 8:47:02am] 345 %
What am I doing wrong here ? Any clues appreciated. TIA & have a good one.
--
William A. Mahaffey III
----------------------------------------------------------------------
"The M1 Garand is without doubt the finest implement of war
ever devised by man."
-- Gen. George S. Patton Jr.
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