Yocto Boot 分区错误（Intel Edison）

Question

我正在尝试调整在 Yocto 系统上运行的 Intel Edison 的分区大小。我以某种方式破坏了分区 1。因此，当我重新启动系统时，它会永远循环以正确启动系统。因此，中断启动顺序并检查分区以查看问题所在。正如您在下面看到的那样，分区从第二个开始，而不是从一个开始！根据引导加载程序的错误，它搜索第 1 部分但找不到。那么如何手动添加/创建/修复分区1来恢复系统呢？

boot > printenv partitions

partitions=uuid_disk=${uuid_disk};name=u-boot0,start=1MiB,size=2MiB,uuid=${uuid_uboot0};name=u-boot-env0,size=1MiB,uuid=${uuid_uboot_env0};name=u-boot1,size=2MiB,uuid=${uuid_uboot1};name=u-boot-env1,size=1MiB,uuid=${uuid_uboot_env1};name=factory,size=1MiB,uuid=${uuid_factory};name=panic,size=24MiB,uuid=${uuid_panic};name=boot,size=32MiB,uuid=${uuid_boot};name=rootfs,size=512MiB,uuid=${uuid_rootfs};name=update,size=768MiB,uuid=${uuid_update};name=home,size=-,uuid=${uuid_home};


boot > mmc part


Partition Map for MMC device 0  --   Partition Type: DOS


Part    Start Sector    Num Sectors     UUID            Type
  2     16              7634928         00000000-02     83

启动顺序

******************************
PSH KERNEL VERSION: b0182727
                WR: 20104000
******************************


SCU IPC: 0x800000d0  0xfffce92c


PSH miaHOB version: TNG.B0.VVBD.0000000c


microkernel built 23:15:13 Apr 24 2014


******* PSH loader *******
PCM page cache size = 192 KB
Cache Constraint = 0 Pages
Arming IPC driver ..
Adding page store pool ..
PagestoreAddr(IMR Start Address) = 0x04899000
pageStoreSize(IMR Size)          = 0x00080000


*** Ready to receive application ***




U-Boot 2014.04 (Oct 14 2014 - 15:19:04)


       Watchdog enabled
DRAM:  980.6 MiB
MMC:   tangier_sdhci: 0
In:    serial
Out:   serial
Err:   serial
Hit any key to stop autoboot:  0
Target:blank
Partitioning already done...
Flashing already done...
**dfu_fill_entity_mmc: could not find partition #1 on mmc device #0!
ERROR: DFU entities configuration failed!**


at drivers/dfu/dfu.c:71/dfu_init_env_entities()
dfu - Device Firmware Upgrade


Usage:
dfu <USB_controller> <interface> <dev> [list|timeout]
  - device firmware upgrade via <USB_controller>
    on device <dev>, attached to interface
    <interface>
    [list] - list available alt settings
    [timeout] - specify inactivity timeout in sec, doesn't work whit list
** Invalid partition 7 **
Error: Invalid Boot Flag (found 0xffef, expected 0xaa55)
## Kernel loading failed ...
zboot - Boot bzImage


Usage:
zboot [addr] [size] [initrd addr] [initrd size]
      addr -        The optional starting address of the bzimage.
                    If not set it defaults to the environment
                    variable "fileaddr".
      size -        The optional size of the bzimage. Defaults to
                    zero.
      initrd addr - The address of the initrd image to use, if any.
      initrd size - The size of the initrd image to use, if any.


Unknown boot mode: boot
Saving Environment to MMC...
Writing to MMC(0)... done
Resetting to default boot mode and reboot...
resetting ...

Answer 1

我自己解决了那个问题。中断启动顺序后，使用 gpt 命令将新分区添加到 mmc。然后，系统正确启动。

Yocto Boot 分区错误（Intel Edison）

Yocto Boot Partition error (Intel Edison)

linux-kernel

u-boot

yocto

intel-edison