我正在尝试遵循本教程：https://ivrodriguez.com/installing-self-signed-certificates-on-android/
当我尝试尝试将/system重新写入可写状态时，我遇到了问题。有人可以帮助我找出问题所在吗？还是我接下来的故障排除步骤应该是什么？
谢谢。
下面是我从基本的Linux经验中可以看到的内容。
$ /Users/me/Library/Android/sdk/platform-tools/adb devices
List of devices attached
emulator-5554 device
$ /Users/me/Library/Android/sdk/platform-tools/adb -s emulator-5554 shell
generic_x86:/ $ su
generic_x86:/ # mount -o rw,remount /system
mount: '/system' not in /proc/mounts
/system中似乎不存在/proc/mounts（但是我对Android文件挂载了解不多，该怎么做）：
generic_x86:/ # cat /proc/mounts | grep system
# nothing
generic_x86:/ # cat /proc/mounts
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600,ptmxmode=000 0 0
proc /proc proc rw,relatime,gid=3009,hidepid=2 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
tmpfs /mnt tmpfs rw,seclabel,nosuid,nodev,noexec,relatime,mode=755,gid=1000 0 0
tmpfs /apex tmpfs rw,seclabel,nosuid,nodev,noexec,relatime,mode=755 0 0
/dev/block/dm-2 / ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-1 /vendor ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
none /dev/cg2_bpf cgroup2 rw,nosuid,nodev,noexec,relatime 0 0
none /dev/cpuctl cgroup rw,nosuid,nodev,noexec,relatime,cpu 0 0
none /acct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct 0 0
none /dev/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset,noprefix,release_agent=/sbin/cpuset_release_agent 0 0
none /dev/memcg cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0
none /dev/stune cgroup rw,nosuid,nodev,noexec,relatime,schedtune 0 0
/dev/block/dm-2 /apex/com.android.tzdata@290000000 ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.tzdata ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.runtime@1 ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.runtime ext4 ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr 0 0
debugfs /sys/kernel/debug debugfs rw,seclabel,relatime,mode=755 0 0
none /config configfs rw,nosuid,nodev,noexec,relatime 0 0
bpf /sys/fs/bpf bpf rw,nosuid,nodev,noexec,relatime 0 0
pstore /sys/fs/pstore pstore rw,seclabel,nosuid,nodev,noexec,relatime 0 0
tracefs /sys/kernel/debug/tracing tracefs rw,seclabel,relatime 0 0
/dev/block/vdc /data ext4 rw,seclabel,nosuid,nodev,noatime,resgid=1065,errors=panic,data=ordered 0 0
tmpfs /storage tmpfs rw,seclabel,nosuid,nodev,noexec,relatime,mode=755,gid=1000 0 0
/dev/block/dm-2 /apex/com.android.conscrypt@290000000 ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.conscrypt ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.resolv@290000000 ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.resolv ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.media.swcodec@290000000 ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.media.swcodec ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.media@290000000 ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
/dev/block/dm-2 /apex/com.android.media ext4 ro,seclabel,nodev,relatime,block_validity,delalloc,barrier,user_xattr 0 0
adb /dev/usb-ffs/adb functionfs rw,relatime 0 0
nsfs /data/vendor/var/run/netns/router nsfs rw 0 0
/data/media /mnt/runtime/default/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal 0 0
/data/media /storage/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal 0 0
/data/media /mnt/runtime/read/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=23,derive_gid,default_normal 0 0
/data/media /mnt/runtime/write/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7,derive_gid,default_normal 0 0
/data/media /mnt/runtime/full/emulated sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7,derive_gid,default_normal 0 0
/dev/block/vold/public:253,80 /mnt/media_rw/091C-2D02 vfat rw,dirsync,nosuid,nodev,noexec,noatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/mnt/media_rw/091C-2D02 /mnt/runtime/default/091C-2D02 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,mask=6 0 0
/mnt/media_rw/091C-2D02 /storage/091C-2D02 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,mask=6 0 0
/mnt/media_rw/091C-2D02 /mnt/runtime/read/091C-2D02 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,mask=18 0 0
/mnt/media_rw/091C-2D02 /mnt/runtime/write/091C-2D02 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,mask=18 0 0
/mnt/media_rw/091C-2D02 /mnt/runtime/full/091C-2D02 sdcardfs rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,mask=7 0 0
/system文件夹确实存在：
generic_x86:/ # ls -la / | grep system
lrw-r--r-- 1 root root 11 2019-09-20 19:50 bin -> /system/bin
drwxrwx--- 2 system cache 4096 2019-09-20 19:22 cache
lrw-r--r-- 1 root root 19 2019-09-20 19:50 charger -> /system/bin/charger
drwxrwx--x 45 system system 4096 2019-10-01 15:58 data
lrw------- 1 root root 23 2019-09-20 19:50 default.prop -> system/etc/prop.default
lrw-r--r-- 1 root root 11 2019-09-20 19:50 etc -> /system/etc
lrwxr-x--- 1 root shell 16 2019-09-20 19:50 init -> /system/bin/init
drwxr-xr-x 12 root system 260 2019-10-08 10:10 mnt
lrw-r--r-- 1 root root 15 2019-09-20 19:50 product -> /system/product
lrw-r--r-- 1 root root 24 2019-09-20 19:50 product_services -> /system/product_services
drwxr-xr-x 13 root root 4096 2019-09-20 19:50 system
generic_x86:/ # ls -la /
total 136
drwxr-xr-x 21 root root 4096 2019-09-20 19:50 .
drwxr-xr-x 21 root root 4096 2019-09-20 19:50 ..
dr-xr-xr-x 70 root root 0 2019-10-08 10:10 acct
-rw-r--r-- 1 root root 723 2019-09-20 19:39 adb_keys
drwxr-xr-x 14 root root 280 2019-10-08 10:10 apex
lrw-r--r-- 1 root root 11 2019-09-20 19:50 bin -> /system/bin
lrw-r--r-- 1 root root 50 2019-09-20 19:50 bugreports -> /data/user_de/0/com.android.shell/files/bugreports
drwxrwx--- 2 system cache 4096 2019-09-20 19:22 cache
lrw-r--r-- 1 root root 19 2019-09-20 19:50 charger -> /system/bin/charger
drwxr-xr-x 4 root root 0 2019-10-08 10:09 config
lrw-r--r-- 1 root root 17 2019-09-20 19:50 d -> /sys/kernel/debug
drwxrwx--x 45 system system 4096 2019-10-01 15:58 data
drwxr-xr-x 2 root root 4096 2019-09-20 19:22 debug_ramdisk
lrw------- 1 root root 23 2019-09-20 19:50 default.prop -> system/etc/prop.default
drwxr-xr-x 19 root root 1420 2019-10-08 10:10 dev
lrw-r--r-- 1 root root 11 2019-09-20 19:50 etc -> /system/etc
lrwxr-x--- 1 root shell 16 2019-09-20 19:50 init -> /system/bin/init
-rwxr-x--- 1 root shell 1653 2019-09-20 19:22 init.environ.rc
-rwxr-x--- 1 root shell 33152 2019-09-20 19:39 init.rc
-rwxr-x--- 1 root shell 7690 2019-09-20 19:39 init.usb.configfs.rc
-rwxr-x--- 1 root shell 5649 2019-09-20 19:39 init.usb.rc
-rwxr-x--- 1 root shell 563 2019-09-20 19:39 init.zygote32.rc
drwx------ 2 root root 16384 2019-09-20 19:51 lost+found
drwxr-xr-x 2 root root 4096 2019-09-20 19:22 metadata
drwxr-xr-x 12 root system 260 2019-10-08 10:10 mnt
drwxr-xr-x 2 root root 4096 2019-09-20 19:22 odm
drwxr-xr-x 2 root root 4096 2019-09-20 19:22 oem
dr-xr-xr-x 201 root root 0 2019-10-08 10:09 proc
lrw-r--r-- 1 root root 15 2019-09-20 19:50 product -> /system/product
lrw-r--r-- 1 root root 24 2019-09-20 19:50 product_services -> /system/product_services
drwxr-xr-x 3 root root 4096 2019-09-20 19:39 res
drwxr-x--- 2 root shell 4096 2019-09-20 19:22 sbin
lrw-r--r-- 1 root root 21 2019-09-20 19:50 sdcard -> /storage/self/primary
drwxr-xr-x 5 root root 100 2019-10-08 10:10 storage
dr-xr-xr-x 12 root root 0 2019-10-08 10:09 sys
drwxr-xr-x 13 root root 4096 2019-09-20 19:50 system
-rw-r--r-- 1 root root 2608 2019-09-20 19:22 ueventd.rc
drwxr-xr-x 8 root root 4096 2019-09-20 19:40 vendor
答案 0 :(得分：1)
我通过使用可写系统磁盘（Android 9）运行模拟器来通过了此操作
例如
emulator.exe -writable-system -no-snapshot -avd virtual_device
其中virtual_device是已配置的虚拟设备（AVD）的名称
也许这也可以帮忙
mount -o rw,remount /