Make openWRT出現util-linux-2.24.1.tar.xz錯誤

Make openWRT出現底下錯誤，無法下載util-linux-2.24.1.tar.xz

/home/victor/Workspace/openwrt-sdk/scripts/download.pl "/home/victor/Workspace/openwrt-sdk/dl" "util-linux-2.24.1.tar.xz" "88d46ae23ca599ac5af9cf96b531590f" "@KERNEL/linux/utils/util-linux/v2.24"
--2017-11-22 17:03:38--  ftp://ftp.all.kernel.org/pub/linux/utils/util-linux/v2.24/util-linux-2.24.1.tar.xz
           => '-'
Resolving ftp.all.kernel.org (ftp.all.kernel.org)... failed: Name or service not known.
wget: unable to resolve host address 'ftp.all.kernel.org'
Download failed.

因下載位置已改變，修改download.pl描述的下載路徑，
由
push @mirrors, "http://ftp.all.kernel.org/pub/$dir";
改為
push @mirrors, "http://www.kernel.org/pub/$dir";

DOCSIS & MoCA

DOCSIS: Data Over Cable Service Interface Specification
MoCA: Multimedia over Coax

WinCE Eboot Boot-up Sequence

1. F:\WINCE500\PLATFORM\COMMON\SRC\ARM\INTEL\PXA27X\STARTUP\startup.s
   StartUp[Start] -> PreInit -> Put CPU in SVC mode and disable IRQ, FIQ ->
   Disable MMU, caches, write-buffer and flush -> RCSR_HARD_RESET(2.) ->
   RCSR_GPIO_RESET(3.) -> Continue_StartUp(4.)
      
2. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\BOOTLOADER\EBOOT\startup.s
   OALStartUp -> Init_HexLEDs -> Copy the bootloader image from flash to RAM ->
   jump to the RAM image -> Enable the MMU -> Jump to main.c(5.)
      
3. F:\WINCE500\PLATFORM\COMMON\SRC\ARM\INTEL\PXA27X\STARTUP\startup.s
   RCSR_GPIO_RESET -> xlli_mem_init -> Continue_StartUp(4.)
      
4. F:\WINCE500\PLATFORM\COMMON\SRC\ARM\INTEL\PXA27X\STARTUP\startup.s
   Continue_StartUp -> xlli_intr_init(15.) -> EnableClks -> xlli_mem_Tmax(15.) ->
   xlli_mem_restart(15.) -> OALXScaleSetFrequencies(16.)->
   xlli_mem_Topt(15.) -> xlli_mem_restart(15.) -> xlli_ost_init(15.) ->
   xlli_pwrmgr_init(15.) -> xlli_IMpwr_init(15.) -> OALStartUp(2.)
      
5. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\BOOTLOADER\EBOOT\main.c
   main -> BootloaderMain(6.)
      
6. F:\WINCE500\PLATFORM\COMMON\SRC\COMMON\BOOT\BLCOMMON\blcommon.c
   BootloaderMain -> KernelRelocate -> OEMDebugInit(7.) -> OEMPlatformInit(9.) ->
   OEMPreDownload(10.) -> BL_DOWNLOAD(11.) -> BL_JUMP(14.)
      
7. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\BOOTLOADER\EBOOT\main.c
   OEMDebugInit -> FlashInit -> InitDebugSerial(8.)
      
8. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\COMMON\DBGSERIAL\dbgserial.c
   InitDebugSerial -> Return
      
9. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\BOOTLOADER\EBOOT\main.c
   OEMPlatformInit -> Create menu -> InitSpecifiedEthDevice(Download image) -> Return
      
10. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\BOOTLOADER\EBOOT\main.c
    OEMPreDownload -> Return
       
11. F:\WINCE500\PLATFORM\COMMON\SRC\COMMON\BOOT\BLCOMMON\blcommon.c
    DownloadImage(BL_DOWNLOAD) -> OEMReadData(12.)
       
12. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\BOOTLOADER\EBOOT\utils.c
    OEMReadData -> EbootEtherReadData(13.)
       
13. F:\WINCE500\PUBLIC\COMMON\OAK\DRIVERS\ETHDBG\EBOOT\ebsimp.c
    EbootEtherReadData -> OEMLaunch(14.)
       
14. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\BOOTLOADER\EBOOT\main.c
    OEMLaunch[End]
       
15. F:\WINCE500\PUBLIC\COMMON\OAK\CSP\ARM\INTEL\PXA27X\XLLP\SOURCE\
    xlli_lowlev_init.s
    xlli_intr_init; xlli_mem_Tmax; xlli_mem_restart; xlli_mem_Topt; xlli_mem_restart;
    xlli_ost_init; xlli_pwrmgr_init; xlli_IMpwr_init; xlli_GPIO_init
       
16. F:\WINCE500\PLATFORM\MAINSTONEII\SRC\COMMON\FREQ\freq.s
    OALXScaleSetFrequencies -> xlli_GPIO_init -> xlli_GPIO_init(15.)

縮小VDI檔案大小

於客體端

1. sudo apt-get install zerofree
2. 重開機進入Recovery Mode
3. mount -n -o remount,ro -t ext3 /dev/sda1 /
4. zerofree -v /dev/sda1

於主體端

• VBoxManage modifymedium XXX.vdi --compact

chroot測試SDK出現cat /proc/cpuinfo錯誤

用chroot測試SDK，make時出現下面的錯誤
cat: /proc/cpuinfo: No such file or directory

解決，

sudo mount --bind /proc <chroot dir>/proc

Build openWRT Image

1. sudo tar -Jxv -f xxx-openwrt-sdk-xxx.tar.bz2  
2. apt-get install subversion
   apt-get install wget
   apt-get install libncurses5-dev
   apt-get install zlib1g-dev
   apt-get install gawk
   apt-get install unzip
   apt-get install python
   apt-get install git
   apt-get install file 
3. git init
4. cp util-linux-2.24.1.tar.xz到dl目錄
5. make menuconfig 
6. make V=s (第一次要連網)

P.S.

1. 因util-linux-2.24.1.tar.xz已從server拿掉，自行下載copy到dl目錄。
2. 遇到底下錯誤要先做git init
   ramips_mt7621/base-files/ipkg-ramips_24kec/base-files/etc/banner
   cat: /home/work/openwrt-sdk/build_dir/target-mipsel_24kec+dsp_uClibc-0.9.33.2/linux-ramips_mt7621/base-files/ipkg-ramips_24kec/base-files/etc/sdk.version: No such file or directory

Build openWRT發生base-files/etc/sdk.version: No such file or directory

下"git init"即可解決

測試SDK是否能在不同版本的Ubuntu使用(chroot)

使用chroot測試

1. sudo apt-get install schroot debootstrap
2. 增加下面描述至/etc/schroot/schroot.conf
   [xenial]
   description=Ubuntu Xenial (LTS)
   directory=/home/XXX/xenial
   users=XXX        //主體使用者名稱
   groups=XXX      //主體使用者群組
   root-groups=root
   aliases=unstable,default
3. mkdir /home/XXX/xenial
4. sudo debootstrap --variant=buildd --arch amd64 xenial /home/XXX/xenial http://archive.ubuntu.com/ubuntu/
   or
   sudo debootstrap --arch amd64 xenial /home/XXX/xenial http://archive.ubuntu.com/ubuntu/
5. sudo mkdir /home/XXX/xenial/home/XXX
6. schroot -c xenial -u XXX
7. exit
8. 安裝sudo and language
   sudo chroot /home/XXX/xenial
   apt-get install sudo
   export LANGUAGE=en_US.UTF-8
   export LANG=en_US.UTF-8
   export LC_ALL=en_US.UTF-8
   locale-gen en_US.UTF-8
   dpkg-reconfigure locales
   exit
9. 增加user and group
   sudo chroot /home/XXX/xenial /bin/bash
   groupadd XXX
   useradd -g XXX XXX
   passwd XXX
   exit 

Ubuntu 10.04
sudo debootstrap --arch amd64 --keyring=/etc/apt/trusted.gpg lucid /home/victor/Workspace/hisilicon http://old-releases.ubuntu.com/ubuntu/

Bind Filesystem
/etc/fstab
/dev /home/XXX/xenial/dev auto bind 0 0
/dev/pts /home/XXX/xenial/dev/pts auto bind 0 0
/proc /home/XXX/xenial/proc auto bind 0 0

Compile出現error: incompatible types when assigning to type &int * from type &kuid_t * pOSFSInfo->fsuid = current_fsuid();錯誤

主要是新版linux kernel，current_fsuid() function有修改。

這function定義在

/usr/src/linux-headers-X.XX.X-XX/include/linux/cred.h
struct cred {
...
kuid_t fsuid;   /* UID for VFS ops */
kgid_t fsgid; /* GID for VFS ops */
…

/usr/src/linux-headers-3.19.0-32/include/linux/uidgid.h
typedef struct {
uid_t  val;
} kuid_t;

可依下面方式更改解決此問題。
os/linux/xxx_linux.c
pOSFSInfo->fsuid = current_fsuid().val;
pOSFSInfo->fsgid = current_fsgid().val;
或是
include/os/xxx_linux.h
typedef struct _OS_FS_INFO_
{
kuid_t                     fsuid;
  kgid_t                     fsgid;
  mm_segment_t      fs;
} OS_FS_INFO;

Compile出現arm-none-eabi-gcc: not found /bin/sh: 4:錯誤

一直以為這訊息是沒有找到這檔案，
但檔案明明有在 ><
查了Google後才知道並不是指檔案沒找到 Orz

原來是自己的Ubuntu是64位元版本，
而gcc是32位元版本，才出現這樣的錯誤訊息。

安裝ia32-libs就解決了 ...

判斷Linux執行檔為32-bit或64-bit

> file filename

VirtualBox發生Start tag expected, '<' not found錯誤

VirtualBox執行時顯示Start tag expected, '<' not found，

無法開啟VirtualBox。

刪除

C:\Users\account\.VirtualBox\VirtualBox.xml

將

C:\Users\victorlin.TWNB15035\.VirtualBox\VirtualBox.xml-prev

更名為

C:\Users\account\.VirtualBox\VirtualBox.xml