1.找到内核位置#
手机进入recovery模式,连接电脑,开adb
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| adb shell
cat /etc/recovery.fstab
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得到内核的位置
以下是我的日志
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| # mount point fstype device [device2]
/modem emmc /dev/block/platform/msm_sdcc.1/by-name/modem flags=backup=1
/sbl1 emmc /dev/block/platform/msm_sdcc.1/by-name/sbl1 flags=backup=1
#OPPO 2014-02-18 hewei delete for without sbl2 and sbl3
#/sbl2 emmc /dev/block/platform/msm_sdcc.1/by-name/sbl2
#/sbl3 emmc /dev/block/platform/msm_sdcc.1/by-name/sbl3
/rpm emmc /dev/block/platform/msm_sdcc.1/by-name/rpm flags=backup=1
/tz emmc /dev/block/platform/msm_sdcc.1/by-name/tz flags=backup=1
/modem_st1 emmc /dev/block/platform/msm_sdcc.1/by-name/modemst1 flags=backup=1
/modem_st2 emmc /dev/block/platform/msm_sdcc.1/by-name/modemst2 flags=backup=1
/static_nv_bk emmc /dev/block/platform/msm_sdcc.1/by-name/oppostanvbk flags=backup=1
/oppodycnvbk emmc /dev/block/platform/msm_sdcc.1/by-name/oppodycnvbk flags=backup=1
/aboot emmc /dev/block/platform/msm_sdcc.1/by-name/aboot flags=backup=1
/boot emmc /dev/block/platform/msm_sdcc.1/by-name/boot
/system ext4 /dev/block/platform/msm_sdcc.1/by-name/system
/system_image emmc /dev/block/platform/msm_sdcc.1/by-name/system
/data ext4 /dev/block/platform/msm_sdcc.1/by-name/userdata
/cache ext4 /dev/block/platform/msm_sdcc.1/by-name/cache
/misc emmc /dev/block/platform/msm_sdcc.1/by-name/misc
/recovery emmc /dev/block/platform/msm_sdcc.1/by-name/recovery flags=backup=1
#OPPO 2014-01-14 hewei Add for logo volume, reserve4 volume and DRIVER.ISO
/logo emmc /dev/block/platform/msm_sdcc.1/by-name/LOGO flags=backup=1
/reserve4 emmc /dev/block/platform/msm_sdcc.1/by-name/reserve4 flags=backup=1
#/driver emmc /dev/block/platform/msm_sdcc.1/by-name/DRIVER
#OPPO 2014-01-26 hewei modify for 13077 mount T-card and sdcard
/external_sd vfat /dev/block/mmcblk1p1 /dev/block/mmcblk1 flags=display="Micro SDcard";storage;wipeingui;removable;backup=0
/usbdisk vfat /dev/block/sda1 /dev/block/sda flags=fsflags=utf8;display="OTG-U盘(usbdisk)";storage;removable
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可以看到boot分区对应的路径是/dev/block/platform/msm_sdcc.1/by-name/boot
2.提取内核#
使用dd工具
dd if=boot分区的路径 of=输出路径.img
我的:
dd if=/dev/block/platform/msm_sdcc.1/by-name/boot of=/sdcard/kernel.img
sdcard里的kernel.img就是我提取的内核了