時刻同期

特に LS-HGL, LS-CL, LS-WSGL は内部時計がバッテリバックアップされていないため、 コンセントを抜くと内部時計は正しい時刻を刻まなくなります。 これらの機種で時刻同期は必須です。

時計あわせ

まずは、手動で時計を合わせます。

hackkit:~# date
Fri Jan 10 21:15:27 JST 2031
hackkit:~# date 011020452009
Sat Jan 10 20:45:00 JST 2009
hackkit:~#

ntpd のインストール

apt-get を使用して ntpd をインストールします。

hackkit:~# apt-get install ntp
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  libcap1 libedit2 perl perl-doc perl-modules
Suggested packages:
  ntp-doc libterm-readline-gnu-perl libterm-readline-perl-perl groff
The following NEW packages will be installed:
  libcap1 libedit2 ntp perl perl-doc perl-modules
0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
Need to get 16.4MB of archives.
After this operation, 43.0MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://ftp.jp.debian.org lenny/main libedit2 2.11~20080614-1 [64.5kB]
Get:2 http://ftp.jp.debian.org lenny/main perl-modules 5.10.0-18 [3189kB]
Get:3 http://ftp.jp.debian.org lenny/main perl 5.10.0-18 [4514kB]
Get:4 http://ftp.jp.debian.org lenny/main libcap1 1:1.10-14 [9074B]
Get:5 http://ftp.jp.debian.org lenny/main ntp 1:4.2.4p4+dfsg-7 [458kB]
Get:6 http://ftp.jp.debian.org lenny/main perl-doc 5.10.0-18 [8215kB]
Fetched 16.4MB in 36s (452kB/s)
Selecting previously deselected package libedit2.
(Reading database ... 8609 files and directories currently installed.)
Unpacking libedit2 (from .../libedit2_2.11~20080614-1_armel.deb) ...
Selecting previously deselected package perl-modules.
Unpacking perl-modules (from .../perl-modules_5.10.0-18_all.deb) ...
Selecting previously deselected package perl.
Unpacking perl (from .../perl_5.10.0-18_armel.deb) ...
Selecting previously deselected package libcap1.
Unpacking libcap1 (from .../libcap1_1%3a1.10-14_armel.deb) ...
Selecting previously deselected package ntp.
Unpacking ntp (from .../ntp_1%3a4.2.4p4+dfsg-7_armel.deb) ...
Selecting previously deselected package perl-doc.
Unpacking perl-doc (from .../perl-doc_5.10.0-18_all.deb) ...
Adding `diversion of /usr/bin/perldoc to /usr/bin/perldoc.stub by perl-doc'
Processing triggers for man-db ...
Setting up libedit2 (2.11~20080614-1) ...
Setting up libcap1 (1:1.10-14) ...
Setting up ntp (1:4.2.4p4+dfsg-7) ...
Starting NTP server: ntpd.
Setting up perl-modules (5.10.0-18) ...
Setting up perl (5.10.0-18) ...
Setting up perl-doc (5.10.0-18) ...
hackkit:~#

ntp.conf の修正

デフォルトのままではボランタリーな ntp サーバを参照するように設定され ていますので、 国内の、もしくは自分の ISP が提供する ntp サーバを参照するように /etc/ntp.conf を修正します。

ackkit:~# cd /etc/
hackkit:/etc# mv ntp.conf ntp.conf.orig
hackkit:/etc# cp ntp.conf.orig ntp.conf
hackkit:/etc# ls -l ntp.conf*
-rw-r--r-- 1 root root 2020 Jan  5 21:55 ntp.conf
-rw-r--r-- 1 root root 2020 Jul 17 04:13 ntp.conf.orig
hackkit:/etc# vi ntp.conf
	:
	:

hackkit:/etc# diff -c ntp.conf.orig ntp.conf
*** ntp.conf.orig       Thu Jul 17 04:13:07 2008
--- ntp.conf    Mon Jan  5 21:58:05 2009
***************
*** 14,27 ****

  # You do need to talk to an NTP server or two (or three).
  #server ntp.your-provider.example

  # pool.ntp.org maps to about 1000 low-stratum NTP servers.  Your server will
  # pick a different set every time it starts up.  Please consider joining the
  # pool: 
! server 0.debian.pool.ntp.org iburst dynamic
! server 1.debian.pool.ntp.org iburst dynamic
! server 2.debian.pool.ntp.org iburst dynamic
! server 3.debian.pool.ntp.org iburst dynamic


  # Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
--- 14,30 ----

  # You do need to talk to an NTP server or two (or three).
  #server ntp.your-provider.example
+ server ntp3.jst.mfeed.ad.jp
+ server ntp2.jst.mfeed.ad.jp
+ server ntp1.jst.mfeed.ad.jp

  # pool.ntp.org maps to about 1000 low-stratum NTP servers.  Your server will
  # pick a different set every time it starts up.  Please consider joining the
  # pool: 
! #server 0.debian.pool.ntp.org iburst dynamic
! #server 1.debian.pool.ntp.org iburst dynamic
! #server 2.debian.pool.ntp.org iburst dynamic
! #server 3.debian.pool.ntp.org iburst dynamic


  # Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
hackkit:/etc#

ntpd の再起動

編集した ntp.conf を有効にするため、ntpd を再起動します。

hackkit:/etc# /etc/init.d/ntp restart
Stopping NTP server: ntpd.
Starting NTP server: ntpd.
hackkit:/etc#

確認

そのうち同期するでしょう

hackkit:/etc# ntpq -p
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
*ntp3.jst.mfeed. 210.173.176.4    2 u   18   64  377   16.171  351.403 259.674
+ntp2.jst.mfeed. 210.173.160.86   2 u   50   64  377   15.153  301.088 213.434
+ntp1.jst.mfeed. 133.243.236.19   2 u   61   64  377   21.185  304.055 225.022
hackkit:/etc#

このように、行頭に * が付けばそのサーバと同期しています。

参考ハックの記録

LS-HGL： 第三世代 LinkStation/玄箱ハックキット：時刻同期