= 2011-08-30 =

 * http://fourdollars.blogspot.com/2011/02/4-debian-60.html

== ITRI SSTC & DRBL ==

 * 問題一：Ubuntu 10.04, 10.10, 11.04 都沒有 [http://packages.ubuntu.com/search?keywords=partimage&searchon=names&suite=all&section=all partimage 的 amd64 版本]
{{{
套件 partimage
    * dapper (admin): backup partitions into a compressed image file [universe]
      0.6.4-14: amd64 i386 powerpc
    * hardy (admin): backup partitions into a compressed image file [universe]
      0.6.7-1: i386
      0.6.4-17: amd64
    * lucid (admin): backup partitions into a compressed image file [universe]
      0.6.8-1: i386
    * maverick (admin): backup partitions into a compressed image file [universe]
      0.6.8-1: i386
    * natty (admin): backup partitions into a compressed image file [universe]
      0.6.8-1: i386
    * oneiric (admin): backup partitions into a compressed image file [universe]
      0.6.8-2build1: amd64 i386
}}}
 * 問題二: 網卡不被支援 - Debian GNU/Linux 6.0.2 (squeeze) 不行，Ubuntu 要 10.10 以後版本的預設核心才行。
{{{
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:19.0 0200: 8086:1502 (rev 04)
}}}
  * 2.6.32-5-amd64 的 e1000e 不支援這個 pciid，所以改裝 3.0.0-1-amd64
{{{
jazz@eagle:/lib/modules/2.6.32-5-amd64$ cat modules.alias | grep 1502
alias usb:v16CAp1502d*dc*dsc*dp*ic*isc*ip* aircable
alias pci:v00001131d00007133sv00005169sd00001502bc*sc*i* saa7134
jazz@eagle:/lib/modules/2.6.32-5-amd64$ cd ..
jazz@eagle:/lib/modules$ cd 3.0.0-1-amd64/
jazz@eagle:/lib/modules/3.0.0-1-amd64$ cat modules.alias | grep 1502
alias pci:v00008086d00001502sv*sd*bc*sc*i* e1000e
alias usb:v16CAp1502d*dc*dsc*dp*ic*isc*ip* aircable
alias pci:v00001131d00007133sv00005169sd00001502bc*sc*i* saa7134
}}}
 * 問題三：改裝 3.0.0-1-amd64 會有另外的問題，就是 initrd-pxe.3.0.0-1-amd64.img 無法正常載入 e1000e 的模組，會出現
{{{
"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
"The driver of network card is NOT found!"
"Is this kernel $kernel_ver too old so it does not support this network card ?"
"Without network card driver, we can NOT go on!"
"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
"Now enter shell to debug..."
}}}
 * 但是在 shell 中不做任何動作，直接下 exit 之後，又可以正常網路開機。因此懷疑 3.0.0-1-amd64 的開機速度較快，或 modprobe 程序有誤。
 * <解法> 目前暫時修改 /usr/lib/mkpxeinitrd-net/initrd-skel/bin/insert-modules 加入 sleep 1 的描述，則可以順利開機。
{{{
--- bin/insert-modules.org	2011-08-30 21:40:18.000000000 +0800
+++ bin/insert-modules	2011-08-30 21:17:16.000000000 +0800
@@ -14,6 +14,7 @@
   esac
   echo -n "$module "
   modprobe $module $args 2>/dev/null
+  sleep 1	
 done
 
 # Detect and load the network devices
@@ -21,6 +22,7 @@
 [ -n "$NIC_MOD" ] && echo "The detected modules for hardware: $NIC_MOD. Try to load them..."
 for mod in $NIC_MOD; do
   modprobe $mod 2>/dev/null
+  sleep 1
 done
 netdevices="$(get-nic-devs)"
 if [ -z "$netdevices" ]; then
}}}
 * 看到一些奇怪的訊息，因此懷疑 scan_pci 這段產生的 ＄NIC_MOD 內容有誤～（待追蹤）
{{{
modprobe Valid
modprobe PCI
modprobe device
modprobe module
modprobe is
modprobe found!
}}}
 * 問題四：出現 drm 錯誤訊息
{{{
[drm:pch_irq_handler] *ERROR* PCH poison interrupt
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid
}}}
  * 經查：[https://bugs.launchpad.net/ubuntu/+source/linux/+bug/795407 Bug #795407 in linux (Ubuntu)]與[https://bugs.launchpad.net/ubuntu/+source/linux/+bug/712075 Bug #712075 in linux (Ubuntu)]，錯誤似乎與 DVI 接頭和 X-Windows 解析度偵測有關。目前看到解法是：
{{{
echo 0 > /sys/module/drm_kms_helper/poll
}}}