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fish3237
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Joined: 16 Jul 2012
Posts: 1
Location: China

PostPosted: Tue Jul 17, 2012 7:03 am    Post subject: 怎么样才能加入gentoo团队呢 Reply with quote

嫌弃我么?
我看到关于嵌入式的项目。
想用gentoo快速搭建嵌入式linux,
但是貌似没太多资料
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heroxbd
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Joined: 11 Dec 2011
Posts: 27
Location: Sendai, Japan

PostPosted: Tue Aug 14, 2012 12:56 am    Post subject: Reply with quote

hi 我在 gentoo embedded 有一点经验,你的项目进展得如何了?
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dukelec
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Joined: 15 Aug 2012
Posts: 2

PostPosted: Wed Aug 15, 2012 12:49 pm    Post subject: Reply with quote

heroxbd wrote:
hi 我在 gentoo embedded 有一点经验,你的项目进展得如何了?


你好,我需要在 jz4770 cpu (mipsel32) 上運行 gentoo 系統,內核移植已經 ok,
下載 stage3-mips32el-20110820.tar.bz2 解開並製作成 ext4 鏡像下載到 SD 卡,啓動時會報錯,
並在最終打印結束時死機。

現在打算用自己的交叉工具鏈編譯 stage1~3, 希望告知方法,多謝。

Code:

INIT: version 2.88 booting

   OpenRC 0.8.3 is starting up Gentoo Linux (mips)

 * Mounting /proc ...
/lib/rc/sh/init.sh: line 92:    46 Illegal instruction     fstabinfo --mount /proc
 [ ok ]
/lib/rc/sh/init.sh: line 126:    49 Illegal instruction     grep -Eq "[[:space:]]+xenfs$" /proc/filesystems
 * WARNING: rc_sys not defined in rc.conf. Falling back to automatic detection
 * Caching service dependencies ...
hub 1-0:1.0: hub_suspend
usb usb1: bus auto-suspend, wakeup 1
jz4770-ohci jz4770-ohci: suspend root hub
hub 2-0:1.0: hub_suspend
usb usb2: bus auto-suspend, wakeup 1
 [ ok ]
 * Caching service dependencies ...
 [ ok ]
 * Clock skew detected with `/etc/init.d'
 * Adjusting mtime of `/lib/rc/init.d/deptree' to Sun Sep  4 06:38:39 2011
 * Mounting /sys ...
 [ ok ]
 * Mounting debug filesystem ...
 [ ok ]
 * Mounting /dev ...
 [ ok ]
 * Starting udevd ...
 [ ok ]
 * Populating /dev with existing devices through uevents ...
 [ ok ]
 * Waiting for uevents to be processed ...
 [ ok ]
 * Mounting /dev/pts ...
 [ ok ]
 * Mounting /dev/shm ...
 [ ok ]
 * WARNING: clock skew detected!
 * Setting system clock using the hardware clock [UTC] ...
FATAL: Could not load /lib/modules/3.5.0-00070-g61fcc16/modules.dep: No such file or directory
FATAL: Could not load /lib/modules/3.5.0-00070-g61fcc16/modules.dep: No such file or directory
FATAL: Could not load /lib/modules/3.5.0-00070-g61fcc16/modules.dep: No such file or directory
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access method.
 * Failed to set the system clock
 [ !! ]
 * Autoloaded 0 module(s)
 * Checking local filesystems  ...
ext2fs_check_if_mount: Can't check if filesystem is mounted due to missing mtab file while determining whether /dev/ROOT is mounted.
fsck.ext3: No such file or directory while trying to open /dev/ROOT
Possibly non-existent device?
 * Operational error
 [ !! ]
 * Remounting root filesystem read/write ...
 [ ok ]
 * Updating /etc/mtab ...
 [ ok ]
 * Mounting local filesystems ...
 [ ok ]
 * Configuring kernel parameters ...
 [ ok ]
 * Creating user login records ...
 [ ok ]
 * Cleaning /var/run ...
 [ ok ]
 * Wiping /tmp directory ...
 [ ok ]
 * Setting hostname to localhost ...
 [ ok ]
 * Setting terminal encoding [UTF-8] ...
 [ ok ]
 * Setting keyboard mode [UTF-8] ...
 [ ok ]
 * Loading key mappings [us] ...
 [ ok ]
 * Bringing up interface lo
 *   Caching network module dependencies
 *   127.0.0.1/8 ...
 [ ok ]
 *   Adding routes
 *     127.0.0.0/8 via 127.0.0.1 ...
 [ ok ]
 * Activating swap devices ...
swapon: /dev/SWAP: stat failed: No such file or directory
 [ ok ]
INIT: Entering runlevel: 3
 * WARNING: clock skew detected!
 * Mounting network filesystems ...
 [ ok ]
 * Doing udev cleanups
 * Starting local
 [ ok ]
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dukelec
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Joined: 15 Aug 2012
Posts: 2

PostPosted: Thu Aug 16, 2012 11:50 am    Post subject: Reply with quote

Illegal instruction 已經解決,是 cache 方面的問題。然後修改 inittab 裏面的終端後就可以登錄系統了。

我想知道通常製作文件系統的開發流程是怎樣的,需要從源碼開始一步步由 stage1 構建到 stage3 嗎?
可以啓動 stage3 後,接下來的流程又是如何呢?

1:用 qemu + chroot 在 PC 機上編譯
2:直接在嵌入式系統上編譯
3:嵌入式系統主導編譯,配合 distcc + PC 機器分佈式編譯提高速度
4:更多?

請賜教。
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