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arshan's questions

Martin Hope
arshan
Asked: 2019-01-03 21:29:16 +0800 CST
  • 0

我们正在尝试在基于 ARM 处理器的定制板上启动 Linux。内核从 SD 卡和 eMMC 都成功执行，但是当内核尝试挂载根文件系统时，它能够挂载根分区，但在抛出以下错误后挂起：

[ 11.303145] mmc1: new ultra high speed SDR104 SDHC card at address aaaa [ 11.311651] mmcblk mmc1:aaaa: Card claimed for testing. [ 11.318832] mmcblk1: mmc1:aaaa SL16G 14.8 GiB [ 11.341076] mmcblk1: p1 [ 11.461523] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data mode. Opts: (null) [ 11.473340] VFS: Mounted root (ext4 filesystem) on device 179:33. [ 11.488610] devtmpfs: mounted [ 11.493848] Freeing unused kernel memory: 500K (c0b0d000 - c0b8a000) [ 11.911302] init: plymouth-upstart-bridge main process (115) terminated with status 1 [ 11.923611] init: plymouth-upstart-bridge main process ended, respawning [ 11.935367] mmc1: ADMA error [ 11.941245] sdhci: =========== REGISTER DUMP (mmc1)=========== [ 11.949353] sdhci: Sys addr: 0x00000000 | Version: 0x00000303 [ 11.957510] sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000028 [ 11.965688] sdhci: Argument: 0x00440cc0 | Trn mode: 0x00000033 [ 11.973895] sdhci: Present: 0x01fb0206 | Host ctl: 0x00000013 [ 11.982134] sdhci: Power: 0x0000000d | Blk gap: 0x00000000 [ 11.990404] sdhci: Wake-up: 0x00000000 | Clock: 0x00000007 [ 11.998644] sdhci: Timeout: 0x0000000e | Int stat: 0x00000000 [ 12.006822] sdhci: Int enab: 0x02ff000b | Sig enab: 0x02fc000b [ 12.014939] sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 [ 12.022978] sdhci: Caps: 0x376fd080 | Caps_1: 0x10002f73 [ 12.030966] sdhci: Cmd: 0x0000123a | Max curr: 0x00000000 [ 12.038910] sdhci: Host ctl2: 0x0000308b [ 12.044909] sdhci: ADMA Err: 0x00000001 | ADMA Ptr: 0xae8420c0 [ 12.052861] sdhci: ===========================================

作为一种解决方法，当我尝试通过传递sdhci.debug_quirks=32832给内核命令行参数来禁用 ADMA 时，系统在以下点挂起：

[ 8.076631] Waiting for root device /dev/mmcblk1p1...

任何人都可以提出一些解决方案，因为我被困在这一点上？

linux-kernel
Martin Hope
arshan
Asked: 2018-12-29 06:29:21 +0800 CST
  • 1

我正在尝试在基于 Nvidia TK1 的定制板上运行 Linux。当我尝试从 SD 卡启动板时，出现以下错误：

VFS: Cannot open root device "mmcblk1p1" or unknown-block(179,33): error -30
Please append a correct "root=" boot option; here are the available partitions:
 b300        30539776 mmcblk0  driver: mmcblk
   b301        14680064 mmcblk0p1 7369c667-ff51-ec4a-29cd-baaba3cee346
   b302            4096 mmcblk0p2 f854c27c-e81b-8de7-765a-2e9442bfc99a
   b303           65536 mmcblk0p3 b70d3266-5831-5aa3-255d-051742ea5ed4
   b304            4096 mmcblk0p4 c6cdb2ab-b49b-1154-0e82-7441842bdc87
   b305            4096 mmcblk0p5 a13ee970-e141-67fc-3e01-7e97dcea6b96
   b306            4096 mmcblk0p6 2a5c388f-b0ec-fb3b-32af-3c554123db5c
   b307            4096 mmcblk0p7 43fe1a02-fafb-3aaa-fb29-d1e85fa37c94
   b308            2048 mmcblk0p8 61bed875-f989-bb5c-a899-0f9573eff1b3
   b309          571392 mmcblk0p9 00f7ef05-a1e9-e53a-ca0b-cbd3493164bd
 b310            4096 mmcblk0rpmb  (driver?)
 b320        15558144 mmcblk1  driver: mmcblk
   b321        15557103 mmcblk1p1 5d52e9ff-6261-41c9-9816-73affe28b267
 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,33)

我已确保为内核提供了正确的根变量，即root=/dev/mmcblk1p1 rw. 我还确保该卡已正确格式化并且不是只读的。

我什至尝试查看内核源代码，error -30但找不到sys_mount()返回此错误的函数定义。

有人可以指出必须发生这种情况的原因吗？谢谢。

linux-kernel sd-card
Martin Hope
arshan
Asked: 2018-03-30 23:41:38 +0800 CST
  • 4

我通过设置EXTRA_IMAGE_FEATURES = "package-management"和CORE_IMAGE_EXTRA_INSTALL += "apt"在 Yocto 的配置文件中使用 Yocto 创建了一个文件系统映像。映像已成功构建并运行。

现在问题来了！我在/etc/apt/sources.list.d/custom.list设置 debian repo 中添加了以下字符串：

deb [ arch=powerpc ] http://ftp.us.debian.org/debian jessie main

但是当我运行时apt-get update，我收到以下错误：

Ign http://ftp.us.debian.org jessie InRelease
Get:1 http://ftp.us.debian.org jessie Release.gpg [2373 B]
Hit http://ftp.us.debian.org jessie Release
Ign http://ftp.us.debian.org jessie Releaseled in /etc/apt/trusted.gpg.d/.
Get:2 http://ftp.us.debian.org jessie/main powerpc Packages [7512 kB]
Get:3 http://ftp.us.debian.org jessie/main Translation-en [3846 kB]
Err http://ftp.us.debian.org jessie/main powerpc Packages

Err http://ftp.us.debian.org jessie/main powerpc Packages
  404  Not Found [IP: 208.80.154.15 80]
Ign http://ftp.us.debian.org jessie/main Translation-en
Fetched 2373 B in 10s (226 B/s)
W: GPG error: http://ftp.us.debian.org jessie Release: Could not execute 'gpgv' to verify signature (is gpgv installed?)
W: Failed to fetch http://ftp.us.debian.org/debian/dists/jessie/main/binary-powerpc/Packages  404  Not Found [IP: 208.80.154.15 80]

E: Some index files failed to download. They have been ignored, or old ones used instead.

在这里，我注意到 apt 正在尝试下载Packages而不是Packages.gz文件。有人可以建议如何强制apt获取 gzipped 文件而不是未压缩的 Packages 文件吗？

debian apt