Core OS Index

1.2. Configure

If you don't mounted chroot follow this steps from install;

        $ export CHROOT=/mnt
        
        $ export BLK_EFI=/dev/sda1
        $ export BLK_BOOT=/dev/sda2
        $ export BLK_ROOT=/dev/sda3
        $ export BLK_VAR=/dev/sda5
        $ export BLK_USR=/dev/sda7

        $ export BLK_HOME=/dev/sda8

        $ sudo mount $BLK_BOOT $CHROOT/boot
        $ sudo mount $BLK_EFI $CHROOT/boot/efi
        $ sudo mount $BLK_VAR $CHROOT/var
        $ sudo mount $BLK_USR $CHROOT/usr

        $ sudo mount $BLK_HOME $CHROOT/home
        

Now you can chroot;

        $ sudo chroot $CHROOT /usr/bin/env -i \
          HOME=/root TERM="$TERM" PS1='\u:\w\$ ' \
          PATH=/bin:/usr/bin:/sbin:/usr/sbin \
          /bin/bash --login
        

1.2.1. Set hostname and hosts

Give it a name, this example we will call it c9;

        # hostname c9
        

Edit /etc/hosts to contain your hostname and FQDN, this example uses c9.core and c9.root.sx sub-domain from afraid.org pointing to 10.0.0.1 ip;

        # IPv4
        127.0.0.1	localhost.localdomain localhost
        127.0.0.1       c9.core c9

        #<ip-address>	<hostname.domain.org>	<aliases>
        10.0.0.1                c9.root.sx

        # IPv6
        #::1		ip6-localhost	ip6-loopback
        #fe00::0	ip6-localnet
        #ff00::0	ip6-mcastprefix
        #ff02::1	ip6-allnodes
        #ff02::2	ip6-allrouters
        #ff02::3	ip6-allhosts

        # End of file
        

Checkup;

        $ hostname
        c9
        $ hostname -f
        c9.core
        

1.2.2. Set timezone

Setup timezone;

        # tzselect
        Please identify a location so that time zone rules can be set correctly.
        Please select a continent, ocean, "coord", or "TZ".
         1) Africa
         2) Americas
         3) Antarctica
         4) Asia
         5) Atlantic Ocean
         6) Australia
         7) Europe
         8) Indian Ocean
         9) Pacific Ocean
        10) coord - I want to use geographical coordinates.
        11) TZ - I want to specify the time zone using the Posix TZ format.
        #? 7

        Please select a country whose clocks agree with yours.
         1) ?land Islands         18) Greece                35) Norway
         2) Albania               19) Guernsey              36) Poland
         3) Andorra               20) Hungary               37) Portugal
         4) Austria               21) Ireland               38) Romania
         5) Belarus               22) Isle of Man           39) Russia
         6) Belgium               23) Italy                 40) San Marino
         7) Bosnia & Herzegovina  24) Jersey                41) Serbia
         8) Britain (UK)          25) Latvia                42) Slovakia
         9) Bulgaria              26) Liechtenstein         43) Slovenia
        10) Croatia               27) Lithuania             44) Spain
        11) Czech Republic        28) Luxembourg            45) Svalbard & Jan Mayen
        12) Denmark               29) Macedonia             46) Sweden
        13) Estonia               30) Malta                 47) Switzerland
        14) Finland               31) Moldova               48) Turkey
        15) France                32) Monaco                49) Ukraine
        16) Germany               33) Montenegro            50) Vatican City
        17) Gibraltar             34) Netherlands
        #? 37

        Please select one of the following time zone regions.
        1) mainland
        2) Madeira Islands
        3) Azores
        #? 1

        The following information has been given:

            Portugal
            mainland

        Therefore TZ='Europe/Lisbon' will be used.
        Local time is now:      Sun Aug  9 17:36:05 WEST 2016.
        Universal Time is now:  Sun Aug  9 16:36:05 UTC 2016.
        Is the above information OK?
        1) Yes
        2) No
        #? 1

        You can make this change permanent for yourself by appending the line
            TZ='Europe/Lisbon'; export TZ
        to the file '.profile' in your home directory; then log out and log in again.

        Here is that TZ value again, this time on standard output so that you
        can use the /usr/bin/tzselect command in shell scripts:
        Europe/Lisbon
        #
        

1.2.3. Set locale

        # localedef -i en_US -f UTF-8 en_US.UTF-8
        

1.2.4. Users

1.2.4.1. Set root password

        # passwd
        

1.2.4.2. Create Administrator User

Description of most default pretinent groups;

adm
Administration group.
ftp
Access to files served by ftp.
users
Standard users group.
wheel
Administration group used to give access to sudo.
        # useradd -m -k /etc/skel -s /bin/bash c9admin
        # usermod -G adm,wheel,audio,video c9admin
        # passwd c9admin
        
        # chmod 0700 /root
        # chmod 0700 /home/c9admin
        

1.2.4.3 Add Administrator to Wheel group

        bash-4.3# sudoedit /etc/sudoers
        
        ## Uncomment to allow members of group wheel to execute any command
        %wheel ALL=(ALL) ALL
        

1.2.5. File system table

First we will discover block id (UUID) of target partition, blkid list all while vol_id --uuid /dev/sdb1 returns only uuid. Add all block ids to the end of file /etc/fstab;

        # blkid >> /etc/fstab
        

Read Securing mount points, and edit /etc/fstab according to your disk layout. Blocks with uuid will later be created at lvm.

Pass option control in wich order fsck checks devices. If is a multiple partition scheme; 1 for root, 2 for others or 0 to disable fsck. In this example fsck in usr partition is disable, initram file system mounted on boot making impossible to run fsck.

        /dev/sda3  				   / 		ext4	defaults,noatime,ro				0	1
        # usr is not checked because is already mounted by init ram (to be fixed).
        UUID=20bd3948-0877-4192-af52-ad87d6f96db0  /usr		ext4	defaults,ro,nodev,errors=remount-ro		0	0
        devpts                 		           /dev/pts	devpts	noexec,nosuid,gid=tty,mode=0620			0	0
        none                                       /sys/kernel/security securityfs defaults                             0       0
        devpts                 		           /dev/pts	devpts	noexec,nosuid,gid=tty,mode=0620			0	0
        shm                   			   /dev/shm	tmpfs	defaults                                        0       0
        tmp                                        /tmp         tmpfs   defaults,noatime,nosuid,nodev,noexec,size=128M  0       0
        UUID=3b408790-65e1-4638-9591-7ba61f266913  /boot	ext4	defaults,ro,noatime		  		0	2
        UUID=962D-0DE1				   /boot/efi	vfat	ro,noauto,umask=0077      			0	2
        UUID=f2336a56-fbe6-444c-bdbf-f0e6c209c237  /var		ext4	defaults,nodev,noexec,nosuid,errors=remount-ro  0	2
        UUID=66c083d6-b8f2-4a98-ae55-9412f98cc089  /usr/ports	ext4	defaults,ro,nodev,errors=remount-ro		0	2
        pkgmk                                      /usr/ports/work tmpfs   size=30G,gid=101,uid=100,defaults 		0       2
        UUID=36e9e1d5-8356-451e-a301-81098b9a15ea  /srv		ext4	defaults,nodev,errors=remount-ro		0	2
        UUID=cd15196a-69f1-4fb4-9730-a384c62add91  /home        ext4    defaults,nodev,nosuid,errors=remount-ro		0	2
        #UUID=04f07488ce7b36205acc6d404dcf924643660ac5  /usr/ports/distfiles	ext4	defaults,ro,nodev,errors=remount-ro		0	2
        # End of file
        

1.2.6. Initialization Scripts

Edit /etc/rc.conf and define keyboard layout, hostname and timezone, more information about configuration variables.

        #
        # /etc/rc.conf: system configuration
        #

        FONT=default
        KEYMAP=dvorak
        TIMEZONE="Europe/Lisbon"
        HOSTNAME=c9
        SYSLOG=sysklogd
        SERVICES=(lo iptables wlan crond)

        # End of file
        
Core OS Index

This is part of the c9 Manual. Copyright (C) 2017 c9 team. See the file Gnu Free Documentation License for copying conditions.