Android /system下cp 或者rm

最新推荐文章于 2022-12-01 23:21:59 发布
原创 最新推荐文章于 2022-12-01 23:21:59 发布 · 200 阅读 · 0 ·
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#android

本文介绍了如何在root权限下使用mount-orw和remount-tyaffs2命令进行文件系统操作，具体解释了这两个命令的功能以及在Linux系统中如何正确使用。
root权限下面

使用命令

mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
Android环境rm命令
weixin_30770783的博客
11-21 604
How can I execute all the possible unix(shell) commands in android programmatically? Android can't exec rm –r 照以上链接所示方式在Android环境中执行rm删除命令，还是无效；换用java File.delete仍然无效。 经过若干天尝试，发现是SElinux开启导致...
深入学习Android系统上mount命令的使用
Fly20141201. 的专栏
09-10 1万+
在Android系统的预装apk病毒和elf病毒的清除时，经常需要先获取root权限，再执行 “mount -o remount,rw /system” 命令修改系统分区属性为可写，然后才能将system/xbin、system/bin以及system/app下的病毒清除干净。在清除Android系统病毒的这个过程中，必须涉及到 mount修改Android系统的分区属性为可写的行为，这里
Android 设备终端执行cp等操作时报Read-only file system问题
fhaitao900310的博客
04-19 2708
1，在可以执行adb的情况下，使用 adb remount , 在执行adb shell 进到设备终端 2，在没有adb可以执行，比如说直接串口连接调试情况，直接进到设备终端，如果我们想操作/system路径下的文件，会报Read-only file system,执行失败，此时我们可以使用mount命令，重新挂载文件，指令如下 mount -o remount /system 此后便可以...
一文搞懂如何学习Android内部命令行工具集合
sunny
12-01 4197
Android内部命令行工具有哪些?如何使用安卓中比如rm, am, logcat等命令行工具?个人如何学习才能真正掌握这么庞大的知识?
对于linux下system()函数的深度理解(整理)
热门推荐
Android/Linux的专栏
06-20 1万+
这几天调程序(嵌入式linux),发现程序有时就莫名其妙的死掉,每次都定位在程序中不同的system()函数,直接在shell下输入system()函数中调用的命令也都一切正常.就没理这个bug,以为是其他的代码影响到这个,或是内核驱动文件系统什么的异常导致,昨天有出现了这个问题,就随手百了一下度,问题出现了,很多人都说system()函数要慎用要少用要能不用则不用,system()函数不稳定?
/system/bin/rm: Argument list too long怎么解决
09-17
看来用户可能是在Android设备的adb shell环境下操作，或者嵌入式Linux系统，因为路径包含/system/bin。 从引用内容看，用户已经收集了多种解决方案： - 引用1和2推荐find + xargs组合，但特别强调通配符位置很重要 ...
FAILED: out_sys/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy out_sys/host/linux-x86/bin/secilc -m -M true -G -c 30 out_sys/soong/.intermediates/system/sepolicy/plat_sepolicy.cil/android_common/plat_sepolicy.cil out_sys/soong/.intermediates/system/sepolicy/apex_sepolicy-33.cil/android_common/apex_sepolicy.cil out_sys/soong/.intermediates/system/sepolicy/plat_pub_versioned.cil/android_common/plat_pub_versioned.cil out_sys/soong/.intermediates/system/sepolicy/system_ext_sepolicy.cil/android_common/system_ext_sepolicy.cil out_sys/soong/.intermediates/system/sepolicy/product_sepolicy.cil/android_common/product_sepolicy.cil out_sys/soong/.intermediates/system/sepolicy/vendor_sepolicy.cil/android_common/vendor_sepolicy.cil out_sys/soong/.intermediates/system/sepolicy/odm_sepolicy.cil/android_common/odm_sepolicy.cil out_sys/soong/.intermediates/system/sepolicy/plat_mapping_file/android_common/34.0.cil out_sys/soong/.intermediates/system/sepolicy/system_ext_mapping_file/android_common/34.0.cil out_sys/soong/.intermediates/system/sepolicy/product_mapping_file/android_common/34.0.cil -o out_sys/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_policy -f /dev/null && cp -f out_sys/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_policy out_sys/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy && rm -f out_sys/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_policy # hash of input list: d37dcc3138e6e3c05fb29ee9ce5bbc35c9c33694830165c3cf46b92a836ac4ed neverallow check failed at out_sys/soong/.intermediates/system/sepolicy/plat_pub_versioned.cil/android_common/plat_pub_versioned.cil:6363 (neverallow base_typeattr_287_34_0 base_typeattr_288_34_0 (file (execute))) <root> allow at out_sys/soong/.intermediates/system/sepolicy/vendor_sepolicy.cil/android_common/vendor_sepolicy.cil:12945 (allow cwb_dumper cwb_dumper_exec (file (read getattr map execute open entrypoint))) <root> allow at out_sys/soong/.intermediates/system/sepolicy/vendor_sepolicy.cil/android_common/vendor_sepolicy.cil:12965 (allow cwb_dumper cwb_dumper_exec (file (execute))) neverallow check failed at out_sys/soong/.intermediates/system/sepolicy/plat_pub_versioned.cil/android_common/plat_pub_versioned.cil:6361 (neverallow coredomain base_typeattr_285_34_0 (file (entrypoint))) <root> allow at out_sys/soong/.intermediates/system/sepolicy/vendor_sepolicy.cil/android_common/vendor_sepolicy.cil:12945 (allow cwb_dumper cwb_dumper_exec (file (read getattr map execute open entrypoint)))
07-03
### 修复 Android 构建中的 SELinux neverallow 检查失败问题 在 Android 系统构建过程中，SELinux 的 `neverallow` 规则用于确保某些权限不会被错误地授予。当构建系统检测到违反这些规则的情况时，会抛出错误并...
[2025-10-28T09:53:19.214Z] FAILED: out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy [2025-10-28T09:53:19.214Z] out_vendor/host/linux-x86/bin/secilc -m -M true -G -c 30 out_vendor/soong/.intermediates/system/sepolicy/plat_sepolicy.cil/android_common/plat_sepolicy.cil out_vendor/soong/.intermediates/system/sepolicy/apex_sepolicy-33.cil/android_common/apex_sepolicy.cil out_vendor/soong/.intermediates/system/sepolicy/plat_pub_versioned.cil/android_common/plat_pub_versioned.cil out_vendor/soong/.intermediates/system/sepolicy/system_ext_sepolicy.cil/android_common/system_ext_sepolicy.cil out_vendor/soong/.intermediates/system/sepolicy/product_sepolicy.cil/android_common/product_sepolicy.cil out_vendor/soong/.intermediates/system/sepolicy/vendor_sepolicy.cil/android_common/vendor_sepolicy.cil out_vendor/soong/.intermediates/system/sepolicy/odm_sepolicy.cil/android_common/odm_sepolicy.cil out_vendor/soong/.intermediates/system/sepolicy/plat_mapping_file/android_common/33.0.cil out_vendor/soong/.intermediates/system/sepolicy/system_ext_mapping_file/android_common/33.0.cil out_vendor/soong/.intermediates/system/sepolicy/product_mapping_file/android_common/33.0.cil -o out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_policy -f /dev/null && out_vendor/host/linux-x86/bin/sepolicy-analyze out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_policy permissive > out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_permissive && if test -s out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_permissive ; then echo -e "==========\nERROR: permissive domains not allowed in user builds\nList of invalid domains:" && cat out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_permissive ; exit 1; fi && cp -f out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_policy out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy && rm -f out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_permissive out_vendor/soong/.intermediates/system/sepolicy/precompiled_sepolicy/android_common/precompiled_sepolicy_policy # hash of input list: 8e7a82ec679e892a2c6e699a9c85a3a18aab2c90f5247a987bb3315f0d9a5056 [2025-10-28T09:53:19.214Z] neverallow check failed at out_vendor/soong/.intermediates/system/sepolicy/plat_sepolicy.cil/android_common/plat_sepolicy.cil:24343 from system/sepolicy/private/property.te:162 [2025-10-28T09:53:19.214Z] (neverallow base_typeattr_792 base_typeattr_802 (file (ioctl read write create setattr lock relabelfrom append unlink link rename open watch watch_mount watch_sb watch_with_perm watch_reads))) [2025-10-28T09:53:19.214Z] <root> [2025-10-28T09:53:19.214Z] allow at out_vendor/soong/.intermediates/system/sepolicy/vendor_sepolicy.cil/android_common/vendor_sepolicy.cil:10680 [2025-10-28T09:53:19.214Z] (allow mi_ic system_prop_33_0 (file (read getattr open)))
最新发布
10-29
根据引用内容，我们知道Android的SELinux策略文件分布在不同的位置，包括system/sepolicy下的公共策略和private策略，以及vendor的特定策略。 解决neverallow冲突的一般步骤： 1. 理解neverallow规则：...
[ 94% 12233/12989] Target system fs image: out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system.img FAILED: out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system.img /bin/bash -c "(mkdir -p out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/ out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates && rm -rf out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"system_selinux_fc=out/target/product/ok3588_c/obj/ETC/file_contexts.bin_intermediates/file_contexts.bin\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"building_system_image=true\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"ext_mkuserimg=mkuserimg_mke2fs\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"fs_type=ext4\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"extfs_sparse_flag=-s\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"erofs_sparse_flag=-s\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"squashfs_sparse_flag=-s\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"f2fs_sparse_flag=-S\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_avbtool=avbtool\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_system_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_system_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_system_other_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_system_other_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_vendor_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_vendor_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_product_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_product_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_system_ext_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_system_ext_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_odm_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_odm_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_vendor_dlkm_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_vendor_dlkm_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_odm_dlkm_hashtree_enable=false\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"avb_odm_dlkm_add_hashtree_footer_args=\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"root_dir=out/target/product/ok3588_c/root\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"use_dynamic_partition_size=true\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (echo \"skip_fsck=true\" >> out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt ) && (PATH=out/host/linux-x86/bin/:system/extras/ext4_utils/:\$PATH out/host/linux-x86/bin/build_image out/target/product/ok3588_c/system out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system_image_info.txt out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system.img out/target/product/ok3588_c/system || ( mkdir -p \${DIST_DIR}; cp out/target/product/ok3588_c/installed-files.txt \${DIST_DIR}/installed-files-rescued.txt; exit 1 ) )" 2025-09-16 11:16:56 - build_image.py - ERROR : Failed to build out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system.img from out/target/product/ok3588_c/system Out of space? Out of inodes? The tree size of /mnt/1TB/android-dev/out/soong/.temp/tmp6AfPVu is 1696781312 bytes (1618 MB), with reserved space of 0 bytes (0 MB). The max image size for filesystem files is 1713561600 bytes (1634 MB), out of a total partition size of 1713561600 bytes (1634 MB). Traceback (most recent call last): File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/internal/stdlib/runpy.py", line 174, in _run_module_as_main File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/internal/stdlib/runpy.py", line 72, in _run_code File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/__main__.py", line 12, in <module> File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/internal/stdlib/runpy.py", line 174, in _run_module_as_main File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/internal/stdlib/runpy.py", line 72, in _run_code File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/build_image.py", line 943, in <module> File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/build_image.py", line 935, in main File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/build_image.py", line 479, in BuildImage File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/build_image.py", line 378, in BuildImageMkfs File "/mnt/1TB/android-dev/out/host/linux-x86/bin/build_image/common.py", line 312, in RunAndCheckOutput common.ExternalError: Failed to run command '['mkuserimg_mke2fs', '-s', '/mnt/1TB/android-dev/out/soong/.temp/tmp6AfPVu', 'out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system.img', 'ext4', '/', '1713561600', '-j', '0', '-D', 'out/target/product/ok3588_c/system', '-L', '/', '-i', '4276', '-M', '0', '--inode_size', '256', 'out/target/product/ok3588_c/obj/ETC/file_contexts.bin_intermediates/file_contexts.bin']' (exit code 4): 11:16:53 mkuserimg_mke2fs.py INFO: Env: {'MKE2FS_CONFIG': '/mnt/1TB/android-dev/out/soong/.temp/tmp0zkLUk'} 11:16:53 mkuserimg_mke2fs.py INFO: Running: /mnt/1TB/android-dev/out/host/linux-x86/bin/mke2fs -O ^has_journal -L / -N 4276 -I 256 -M / -m 0 -E android_sparse -t ext4 -b 4096 out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system.img 418350 11:16:54 mkuserimg_mke2fs.py INFO: Env: {} 11:16:54 mkuserimg_mke2fs.py INFO: Running: /mnt/1TB/android-dev/out/host/linux-x86/bin/e2fsdroid -p out/target/product/ok3588_c/system -S out/target/product/ok3588_c/obj/ETC/file_contexts.bin_intermediates/file_contexts.bin -f /mnt/1TB/android-dev/out/soong/.temp/tmp6AfPVu -a / out/target/product/ok3588_c/obj/PACKAGING/systemimage_intermediates/system.img 11:16:56 mkuserimg_mke2fs.py ERROR: Failed to run e2fsdroid_cmd: set_selinux_xattr: No such file or directory searching for label "/run" e2fsdroid: No such file or directory while configuring the file system mke2fs 1.45.4 (23-Sep-2019) Creating filesystem with 418350 4k blocks and 4368 inodes Filesystem UUID: d37b64ba-ddcf-4929-bdb5-de70663e6fae Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912 Allocating group tables: done Writing inode tables: done Writing superblocks and filesystem accounting information: done set_selinux_xattr: No such file or directory searching for label "/run" e2fsdroid: No such file or directory while configuring the file system 11:17:04 ninja failed with: exit status 1 #### failed to build some targets (02:55 (mm:ss)) #### Build android failed!
09-18
在rk3588平台构建Android系统镜像时出现 `set_selinux_xattr: No such file or directory searching for label "/run"` 和 `e2fsdroid: No such file or directory while configuring the file system` 错误，可能由...
标准库 - system
qazw9600的专栏
04-28 710
说明 功 能: 在window下执行一条DOS命令或者在linux下执行一条shell命令。 函数声明 int system(char *command); 例子: #include <stdlib.h> #include <stdio.h> int main(void) { 　　printf("About to spawn command.com and run...
linux 主进程 线程的区别,linux system()函数问题
weixin_35486751的博客
04-29 299
大家好，1.我在主程序里面pthread_create(&id,NULL,(void*)cp_thread,NULL)创建了个线程cp_thread2.在cp_thread()函数中system("cp*/media/disk");3.然后又在一个地方使用了pthread_cancel(id);可是问题出来了，就是当执行pthread_cancel(id)时候创建的线程是退出了，...
android 卸载残留代码,完全卸载AndroidStudio(示例代码)
weixin_42355311的博客
05-26 447
一：卸载Android Studio由于从1.5正式版直接升级到2.1的版本，整个项目构建都变得异常的慢，所以决定卸载重新安装2.0的正式版。但是Mac下使用dmg安装的app很多都是不能使用拖拽的方式卸载，而且拖拽的方式基本不能卸载干净，所以我使用命令行的方式卸载，打开命令行： 执行如下命令rm -Rf /Applications/Android\ Studio.apprm -Rf ...
Android 7.0 init.rc 执行shell脚本 ---- 制作一初始化配置文件
yang_gaolei
12-21 8769
Android 7.0 init.rc 执行shell脚本 ---- 制作一初始化配置文件
Android system/bin 命令
java开发指南博客 【转载】
07-25 647
You could do something like that: public static boolean runRootCommand(String command) { Process process = null; DataOutputStream os = null; try { process = Runtime.getRuntime().exec("su"); os =...
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