日复一日emerge

2013年4月10日

昏天黑地地搞了一段时间的树莓派，今天推倒重来了。决定把整个过程事无巨细都记下来，搞一个流水帐，或者叫编年史。

先简单回顾一下之前的过程。

树莓派这东西，关注很久了，但是一直没买，没有琢磨好用它来做什么。最近因为路由器上的openwrt折腾得不爽，还是想搞一个装Gentoo的树莓派。

东西到手后，马上兴致勃勃地操练起来，google "Raspberry Pi gentoo"。按网上的教程装好基本系统。但遗憾的是，根本启动不了。无奈先把之前做的拷出来。下载了个树莓派官方的镜像，试试硬件无问题。然后又下载了一个Gentoo的镜像，也能启动，但不提示login，把最初做的那个拷回来，就可以启动了，怀疑之前的分区顺序什么的有问题。

下一步，emerge distcc

但是distcc信赖的python居然编译了一天还在configure阶段。灰心了。决定找其他编译方式，druggo提议我完全用PC编译，但我没找到完美方法，用qemu-user配置麻烦，据说也很慢，还有用手机编译的。于是再次硬着头皮在PI上编译，居然很快把python编译完了。估计是系统时间问题，在什么地方死循环了。原来在PC上也碰到过。这样就顺利地七七八八地编译，做一些细节上的打磨。结果就是不能正常启动了。提示login:，但进不去。网络也没起来。错误提示也看不清，用手机拍下来看，模模糊糊好像是sh报错，找不以gcc的一个什么库。没想起什么好法子。因为记不清楚之前搞过什么，决定推倒重来。

这次直接用那个gentoo的镜像。

dd if=gentoo.img of=/dev/mmcblk0 bs=1M

启动还是不提示login:，远程ssh又不知道密码。

困了，睡觉了。明日再战。

2013年4月11日

拨卡，插到PC上，

Edit the line for root so it looks like the example below.

#cat /etc/shadow

root::10770:0:::::

ssh 不成功

add to /etc/shadow the root password hash generated by:

# openssl passwd -1

shadow里的root一行变为

root:XXX:10770:0:::::

ssh 登录成功。

把我2T的移动硬盘插上。准备把/usr、/home和/var搞到那上面。 

#mount /dev/sda1 /mnt/dev/sda1
#cd /usr 
#tar cf - * |(cd /mnt/dev/sda1; tar xf -)

/var也如法炮制。

编辑/etc/fstab如下：

# cat /etc/fstab 
proc            /proc           proc    defaults        0       0
/dev/mmcblk0p1  /boot           vfat    defaults        0       0
/dev/mmcblk0p2  none            swap    sw              0       0
/dev/mmcblk0p3	/		ext4	defaults	0	0
/dev/sda1	/usr		ext4	defaults	0	0
/dev/sda5	/var		ext4	defaults	0	0
/dev/sda2	/home		ext4	defaults	0	0

下载最新的portage:

#cd /usr
#wget http://mirrors.163.com/gentoo/snapshots/portage-latest.tar.bz2

#tar xvjf portage-latest.tar.bz2

#rm portage-latest.tar.bz2

改正时间设置：

#ls /mnt/gentoo/usr/share/zoneinfo

#cp /mnt/gentoo/usr/share/zoneinfo/Asia/Shanghai /mnt/gentoo/etc/localtime

#echo "Asia/Shanghai">/etc/timezone

#rc-update add swclock boot 

#rc-update del hwclock boot

启动校时:

# /etc/init.d/ntp-client restart

 * Setting clock via the NTP client 'ntpdate' ...

 * Failed to set clock                                                                          [ !! ]

修改ntp-client设置：

# cat /etc/conf.d/ntp-client 
# /etc/conf.d/ntp-client

# Command to run to set the clock initially
# Most people should just leave this line alone ...
# however, if you know what you're doing, and you
# want to use ntpd to set the clock, change this to 'ntpd'
NTPCLIENT_CMD="ntpdate"

# Options to pass to the above command
# This default setting should work fine but you should
# change the default 'pool.ntp.org' to something closer
# to your machine.  See http://www.pool.ntp.org/ or
# try running `netselect -s 3 pool.ntp.org`.
NTPCLIENT_OPTS="-s -b -u 192.168.1.1 \
		3.cn.pool.ntp.org"
#/etc/init.d/ntp-client restart

修改profile:

#eselect profile list
...
[21]  default/linux/arm/13.0/armv6j
...
#eselect profile set 21

# emerge distcc -av

!!! Unable to parse profile: '/etc/make.profile'

!!! ParseError: Profile contains unsupported EAPI '5': '/usr/portage/profiles/eapi-5-files/eapi'

!!! Your current profile is invalid. If you have just changed your profile

!!! configuration, you should revert back to the previous configuration.

!!! Allowed actions are limited to --help, --info, --search, --sync, and

!!! --version.

portage不够新？emerge --sync之后还不行， 如下方法解决：

#eselect profile set 0 
#emerge -u portage 
#eselect profile set 21

distcc 是原来就装了的。设置一下：

#cat /etc/conf.d/distccd 
# /etc/conf.d/distccd: config file for /etc/init.d/distccd

DISTCCD_OPTS=""

# this is the distccd executable 
DISTCCD_EXEC="/usr/bin/distccd"

# this is where distccd will store its pid file
DISTCCD_PIDFILE="/var/run/distccd/distccd.pid"

# set this option to run distccd with extra parameters
# Default port is 3632.  For most people the default is okay.
DISTCCD_OPTS="${DISTCCD_OPTS} --port 3632"

# Logging
# You can change some logging options here:
# --log-file FILE
# --log-level LEVEL  [critical,error,warning, notice, info, debug]
#
# Leaving --log-file blank will log to syslog
# example: --log-file /dev/null --log-level warning
# example: --log-level critical

DISTCCD_OPTS="${DISTCCD_OPTS} --log-level critical"

# SECURITY NOTICE:
# It is HIGHLY recomended that you use the --listen option
# for increased security. You can specify an IP to permit connections 
# from or a CIDR mask
# --listen accepts only a single IP
# --allow is now mandatory as of distcc-2.18.
# example:  --allow 192.168.0.0/24
# example:  --allow 192.168.0.5 --allow 192.168.0.150
# example:  --listen 192.168.0.2
DISTCCD_OPTS="${DISTCCD_OPTS} --allow 192.168.1.0/24"
#DISTCCD_OPTS="${DISTCCD_OPTS} --listen 192.168.0.2"

# set this for niceness
# Default is 15
DISTCCD_OPTS="${DISTCCD_OPTS} -N 15"

# cat /etc/distcc/hosts 
# --- /etc/distcc/hosts -----------------------
# See the "Hosts Specification" section of
# "man distcc" for the format of this file.
#
# By default, just test that it works in loopback mode.
#192.168.1.3,cpp,lzo 
192.168.1.3 192.168.1.2 localhost

#emerge syslog-ng
#/etc/init.d/syslog-ng start

2013年4月12日

emerge gentoolkit
emerge system -av

一堆block

#emerge vim
#emerge openrc
#emerge gentoolkit
#emerge sysvinit util-linux

2013年4月13日

3点多就被老婆的呼噜＋恶梦惊醒。梦见一个同学去世了。起床。

把/etc/inittab中的这一行去掉注释：

c1:12345:respawn:/sbin/agetty 38400 tty1 linux

本地有登录提示了。

#emerge genlop

建个普通用户：

#useradd  -G users,wheel,audio -s /bin/bash lq

做一个备份系统的脚本，备份一下以防又推倒重来：

#cat backuppi 
tar cvpjf /home/lq/backup/backuppi-`date +%F-%H-%m`.tbz2 / --exclude=/proc --exclude=/lost+found --exclude=/backup.tgz --exclude=/mnt --exclude=/sys --exclude=/home --exclude=/usr/portage --exclude=/var/tmp
# chmod u+x backuppi
#./backuppi

才288M。

udev 升级到200看来还有些麻烦：

# rc-update del udev-postmount

#emerge world -uNDv

开了其他两台机器帮Pi编译。

# cat /usr/sbin/distcc-watch 
#!/bin/bash
# This script will only print non-blank results from distccmon-text
N=1 # seconds to sleep in between checks

while true; do
	task=`DISTCC_DIR="/var/tmp/portage/.distcc/" distccmon-text`
	taskshort=`echo $task | tr -d ' '`
	len=${#taskshort}
	if [ $len -ne 0 ];then
		echo "$task"
	fi

	sleep $N
done

#distcc-watch

#emerge lxde-meta

哈哈，开足马力吧。

2013年4月14日

开着一台笔记本和pi编译了一夜，早上醒来，emerge lxde-meta完了，emerge world还没有完。

# genlop -c

 Currently merging 56 out of 70

 * sys-devel/gcc-4.6.3 

       current merge time: 5 hours, 26 minutes and 55 seconds.
       ETA: 2 hours, 15 minutes and 24 seconds.

感觉笔记本的效率太低了。修改/etc/make.conf，原来是j5，加到j15：

# cat /etc/make.conf
# These settings were set by the catalyst build script that automatically
# built this stage.
# Please consult /usr/share/portage/config/make.conf.example for a more
# detailed example.
CFLAGS="-O2 -mcpu=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard"
CXXFLAGS="${CFLAGS}"
# WARNING: Changing your CHOST is not something that should be done lightly.
# Please consult http://www.gentoo.org/doc/en/change-chost.xml before changing.
CHOST="armv6j-hardfloat-linux-gnueabi"

MAKEOPTS="-j15"

FEATURES="parallel-fetch buildpkg distcc"

GENTOO_MIRRORS="http://mirrors.163.com/gentoo/"
#GENTOO_MIRRORS="http://intelminer.com/gentoo"

#SYNC="rsync://intelminer.com/gentoo-portage"

ACCEPT_LICENSE="*"

EMERGE_DEFAULT_OPTS="--quiet-build=n --autounmask-write --keep-going"

PORTAGE_NICENESS="15"

PKGDIR="/var/binary"

#emerge samba
#emerge mplayer

配置nfs共享portage，参见另文。

最初次的应用，很兴奋啊。

不幸随之而来。正当这些热火朝天地干着的时候，kernel panic出现了。

重启。修改make.conf:

MAKEOPTS="-j10"

#emerge world -uNDv

# emerge vixie-cron



# /etc/init.d/vixie-cron start

# rc-update add vixie-cron default

# emerge usbutils

# emerge bluez

发现kmod的提示：

 * Messages for package sys-apps/kmod-12-r1:

 * Unable to find kernel sources at /usr/src/linux
 * Unable to calculate Linux Kernel version for build, attempting to use running version
 * 
 * /System.map not found.
 * You must manually update the kernel module dependencies using depmod.
 * 

中间发现udev-200的一个提示：

* Messages for package sys-fs/udev-200:

 * Unable to find kernel sources at /usr/src/linux
 * Unable to calculate Linux Kernel version for build, attempting to use running version
 *   CONFIG_BLK_DEV_BSG:	 is not set when it should be.
 * Please check to make sure these options are set correctly.
 * Failure to do so may cause unexpected problems.

 * The new predictable network interface names are used by default, see:
 * http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames
 * 
 * Example command to get the information for the new interface name before booting
 * (replace <ifname> with, for example, eth0):
 * # udevadm test-builtin net_id /sys/class/net/<ifname> 2> /dev/null
 * 
 * You can use kernel commandline net.ifnames=0 to disable this feature.
 * 
 * You need to restart udev as soon as possible to make the upgrade go
 * into effect.
 * The method you use to do this depends on your init system.
 * Old versions of installed libraries were detected on your system.
 * In order to avoid breaking packages that depend on these old libs,
 * the libraries are not being removed.  You need to run revdep-rebuild
 * in order to remove these old dependencies.  If you do not have this
 * helper program, simply emerge the 'gentoolkit' package.
 * 
 *   # revdep-rebuild --library '/lib/libudev.so.0' && rm '/lib/libudev.so.0'
 * 
 * For more information on udev on Gentoo, upgrading, writing udev rules, and
 *          fixing known issues visit:
 *          http://wiki.gentoo.org/wiki/Udev/upgrade
 *          http://www.gentoo.org/doc/en/udev-guide.xml

看看现在支持不？

# zcat /proc/config.gz |grep CONFIG_BLK_DEV_BSG
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_BLK_DEV_BSGLIB is not set

# revdep-rebuild --library '/lib/libudev.so.0' && rm '/lib/libudev.so.0'

还是要升级内核了，准备在PC上编译。

又是比较凶险的说。

# git clone --depth 1 git://github.com/raspberrypi/linux.git

# scp 192.168.1.11:/proc/config.gz .

#gunzip config.gz

#cp config linux/.config

# cd linux

# ARCH=arm CROSS_COMPILE=/usr/bin/armv6j-hardfloat-linux-gnueabi- make oldconfig

# ARCH=arm CROSS_COMPILE=/usr/bin/armv6j-hardfloat-linux-gnueabi- make -j3

distcc不知为什么失灵了。pi自己在编译gcc

2013年4月15日

早上起来，pi还在编译gcc，Ctrl-c,reboot，啊哈，居然起来了。eth0也没变。决定内核暂不升级。

#emerge xorg-server

#emerge bluez

* Messages for package sys-auth/consolekit-0.4.5_p20120320-r1:

 * Unable to find kernel sources at /usr/src/linux

 * Unable to calculate Linux Kernel version for build, attempting to use running version

 *   CONFIG_AUDITSYSCALL: is not set when it should be.

 * Please check to make sure these options are set correctly.

 * Failure to do so may cause unexpected problems.

插上蓝牙适配器。

# /etc/init.d/bluetooth start

#rc-update add bluetooth default

44:2A:60:EE:D2:18 Apple Wireless Keyboard

# emerge pygobject

# ./simple-agent 

Traceback (most recent call last):

  File "./simple-agent", line 8, in <module>

    import dbus

ImportError: No module named dbus

2013年4月16日

配置蓝牙键盘失败。

2013年4月20日

配置samba：

 # useradd -d /usr/samba -s /sbin/nologin samba

# passwd samba
# smbpasswd -a samba
# cat /etc/samba/smb.conf|grep '^[^#;]'
[global]
   workgroup = MYGROUP
   server string = GentooPi
   security = user
   load printers = yes
   log file = /var/log/samba/log.%m
   max log size = 50
   dns proxy = no 
[homes]
   comment = Home Directories
   browseable = yes
   writable = yes
[printers]
   comment = All Printers
   path = /var/spool/samba
   browseable = no
   guest ok = no
   writable = no
   printable = yes
[public]
   comment = Public Stuff
   path = /home/samba
   public = yes
   writable = yes
   printable = no
   #write list = @staff

2013年4月23日

#emerge xorg-server

然后startx，一次成功，真是意外。

emerge layman

layman -a xmw

emerge omxplayer

:(报错。

emerge mplayer 巨慢。

2013年4月24日

emerge alsa-utils

没有认到声音设备。

2013年4月29日

sudo modprobe snd_bcm2835

能播放了，但没声音。

2013年4月30日

emerge transmission

其他机器访问报403。

2013年5月5日

# cat /var/transmission/config/settings.json 
{
    "alt-speed-down": 50, 
    "alt-speed-enabled": false, 
    "alt-speed-time-begin": 540, 
    "alt-speed-time-day": 127, 
    "alt-speed-time-enabled": false, 
    "alt-speed-time-end": 1020, 
    "alt-speed-up": 50, 
    "bind-address-ipv4": "0.0.0.0", 
    "bind-address-ipv6": "::", 
    "blocklist-enabled": false, 
    "blocklist-url": "http://www.example.com/blocklist", 
    "cache-size-mb": 4, 
    "dht-enabled": true, 
    "download-dir": "/var/transmission/downloads", 
    "download-queue-enabled": true, 
    "download-queue-size": 5, 
    "encryption": 1, 
    "idle-seeding-limit": 30, 
    "idle-seeding-limit-enabled": false, 
    "incomplete-dir": "/dev/null/Downloads", 
    "incomplete-dir-enabled": false, 
    "lpd-enabled": false, 
    "message-level": 2, 
    "peer-congestion-algorithm": "", 
    "peer-limit-global": 240, 
    "peer-limit-per-torrent": 60, 
    "peer-port": 51413, 
    "peer-port-random-high": 65535, 
    "peer-port-random-low": 49152, 
    "peer-port-random-on-start": false, 
    "peer-socket-tos": "default", 
    "pex-enabled": true, 
    "pidfile": "/var/run/transmission/transmission.pid", 
    "port-forwarding-enabled": true, 
    "preallocation": 1, 
    "prefetch-enabled": 1, 
    "queue-stalled-enabled": true, 
    "queue-stalled-minutes": 30, 
    "ratio-limit": 2, 
    "ratio-limit-enabled": false, 
    "rename-partial-files": true, 
    "rpc-authentication-required": false, 
    "rpc-bind-address": "0.0.0.0", 
    "rpc-enabled": true, 
    "rpc-password": "{c7f2b768a4d304a50bd82de26779313ac2a1579dmVqsXwn2", 
    "rpc-port": 9091, 
    "rpc-url": "/transmission/", 
    "rpc-username": "", 
    "rpc-whitelist": "127.0.0.1", 
    "rpc-whitelist-enabled": false, 
    "scrape-paused-torrents-enabled": true, 
    "script-torrent-done-enabled": false, 
    "script-torrent-done-filename": "", 
    "seed-queue-enabled": false, 
    "seed-queue-size": 10, 
    "speed-limit-down": 100, 
    "speed-limit-down-enabled": false, 
    "speed-limit-up": 100, 
    "speed-limit-up-enabled": false, 
    "start-added-torrents": true, 
    "trash-original-torrent-files": false, 
    "umask": 18, 
    "upload-slots-per-torrent": 14, 
    "utp-enabled": true
}

改完这个后，transmission可以正常访问了。我终于有了常开树莓派的理由了。

2013年5月17日

前些日子配置了btsync，过程见另文。

出现死机的频率还是比较多的。

还是要配置看门狗的。

在/etc/conf.d/modules中加入bcm2708_wdog这个模块。

# emerge watchdog

# cat /etc/watchdog.conf|grep '^[^#;]' 
ping			= 192.168.1.11
interface		= eth0
file			= /var/log/messages
change			= 1407
max-load-1		= 24
watchdog-device	= /dev/watchdog
temperature-device = /sys/class/thermal/thermal_zone0/temp
max-temperature	= 80000
realtime		= yes
priority		= 1

# /etc/init.d/watchdog start
 * Caching service dependencies ...                                                               [ ok ]
 * Starting watchdog ...                                                                          [ ok ]
GentooPi lq # rc-update add watchdog default
 * service watchdog added to runlevel default

2013年5月19日

watchdog中的ping参数会造成pi的频繁重启，去掉之。

更改为：

$ cat /etc/watchdog.conf|grep '^[^#;]' 
file			= /var/log/messages
max-load-1		= 24
watchdog-device	= /dev/watchdog
temperature-device = /sys/class/thermal/thermal_zone0/temp
max-temperature	= 80000
realtime		= yes
priority		= 1

2013年7月28日

#emerge mldonkey
#cat /etc/conf.d/mldonkey
# /etc/conf.d/mldonkey
# Config file for mldonkey control script

# Change the following vars only if you know
# what you're doing, there's no checking for
# invalid data yet!

# owner of mlnet process (don't change, must be existing)
#USER="p2p"
USER="samba"

# mldonkey's working dir (must be existing)
MLDONKEY_DIR="/home/samba/downloads"

# logfile (/dev/null for nowhere)
LOG="/var/log/mldonkey.log"

# set to true, if you have enabled logging to syslog in MLDonkey with
#     set log_to_syslog true
USE_LOGGER=true

# bandwidth control, values in kb/s
LOW_DOWN="6"
LOW_UP="2"
HIGH_DOWN="30"
HIGH_UP="10"

# nice level, 0<x<19, more nice -> less cpuspeed consumed
NICE="19"

# mldonkey server ip, usually localhost
#SERVER="192.168.1.11"
SERVER="loclahost"

# port for webinterface, usually 4080
PORT="4080"

修改download.ini.

allowed_ips = [
  "127.0.0.1";
  "192.168.1.0/24";]