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android_su's Issues

非常不幸,失败了,希望得到广大同僚的帮忙!

我使用了该程序发现 root 不管用,相关信息如下:

操作步骤

  • 编译代码拿到 libs/armeabi-v7a 中的 su

  • 查看手机对应 cpu 架构

    ➜ adb shell getprop ro.product.cpu.abi
    armeabi-v7a

  • 获取 android sdk api 版本并推测出 19 对应 Android 4.4 Kitkat

    ➜ adb shell getprop ro.build.version.sdk
    19

  • su 文件 push 到 deivce 中

➜ adb shell push libs/armeabi-v7a/su /sdcard

最后,当利用 adb shell 进去执行的时候报以下错误(尽管做了 chmod 6755 su 还是依然无法成功,告诉我 Unable to chmod /sdcard/su: Operation not permitted ):

su: permission denied
 Fail to call setuid or setgid
Pls check permission!!
chmod 6755 su

挂载信息

rootfs / rootfs ro,seclabel 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0
tmpfs /mnt/asec tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
/dev/block/platform/mtk-msdc.0/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0
/dev/block/platform/mtk-msdc.0/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,noatime,discard,noauto_da_alloc,data=ordered 0 0
/dev/block/platform/mtk-msdc.0/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,discard,noauto_da_alloc,data=ordered 0 0
/dev/block/platform/mtk-msdc.0/by-name/protect1 /protect_f ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/mtk-msdc.0/by-name/protect2 /protect_s ext4 rw,seclabel,nosuid,nodev,noatime,nodelalloc,noauto_da_alloc,commit=1,data=ordered 0 0
/dev/block/platform/mtk-msdc.0/by-name/nvdata /nvdata ext4 rw,seclabel,nosuid,nodev,noatime,discard,noauto_da_alloc,data=ordered 0 0
adb /dev/usb-ffs/adb functionfs rw,relatime 0 0
/dev/block/vold/179:22 /mnt/media_rw/sdcard0 vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/179:22 /mnt/secure/asec_sdcard0 vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/fuse /storage/sdcard0 fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0

最后

希望能够得到广大同僚的帮助,同时留下一个足迹能够给到其他人借鉴。

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