【Android 逆向】修改 Android 系统文件 ( 重新挂载文件分区 | 在 /system/lib/ 只读目录下创建文件 | 修改 Android 系统文件的意义 )

mount -o remount,rw /

1|walleye:/system/lib # mount -o remount,rw /
walleye:/system/lib #
walleye:/system/lib # mount
/dev/root on / type ext4 (rw,seclabel,relatime,block_validity,delalloc,barrier,user_xattr)
tmpfs on /sbin type tmpfs (rw,seclabel,relatime,size=1853688k,nr_inodes=463422,mode=755)
/sbin/.magisk/block/persist on /sbin/.magisk/mirror/persist type ext4 (rw,seclabel,relatime,data=ordered)
/sbin/.magisk/block/system_root on /sbin/.magisk/mirror/system_root type ext4 (ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr)
/sbin/.magisk/block/system_root on /sbin/charger type ext4 (ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr)
tmpfs on /dev type tmpfs (rw,seclabel,nosuid,relatime,size=1853688k,nr_inodes=463422,mode=755)
devpts on /dev/pts type devpts (rw,seclabel,relatime,mode=600)
proc on /proc type proc (rw,relatime,gid=3009,hidepid=2)
sysfs on /sys type sysfs (rw,seclabel,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
tmpfs on /mnt type tmpfs (rw,seclabel,nosuid,nodev,noexec,relatime,size=1853688k,nr_inodes=463422,mode=755,gid=1000)
/dev/block/sdd3 on /persist type ext4 (rw,seclabel,nosuid,nodev,noatime,data=ordered)
/dev/block/dm-0 on /vendor type ext4 (ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr)
none on /acct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct)
debugfs on /sys/kernel/debug type debugfs (rw,seclabel,relatime)
none on /dev/stune type cgroup (rw,nosuid,nodev,noexec,relatime,schedtune)
none on /config type configfs (rw,nosuid,nodev,noexec,relatime)
none on /dev/cpuctl type cgroup (rw,nosuid,nodev,noexec,relatime,cpu)
none on /dev/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset,noprefix,release_agent=/sbin/cpuset_release_agent)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,seclabel,relatime)
/dev/block/sda7 on /firmware type vfat (ro,context=u:object_r:firmware_file:s0,relatime,uid=1000,gid=1000,fmask=0337,dmask=0227,codepage=437,iocharset=iso8859-1,shortname=lower,errors=remount-ro)
tmpfs on /storage type tmpfs (rw,seclabel,nosuid,nodev,noexec,relatime,size=1853688k,nr_inodes=463422,mode=755,gid=1000)
/dev/block/sda45 on /data type ext4 (rw,seclabel,nosuid,nodev,noatime,noauto_da_alloc,resgid=1065,errors=panic,stripe=4096,data=ordered)
/sbin/.magisk/block/vendor on /sbin/.magisk/mirror/vendor type ext4 (ro,seclabel,relatime,block_validity,delalloc,barrier,user_xattr)
/sbin/.magisk/block/data on /sbin/.magisk/mirror/data type ext4 (rw,seclabel,relatime,noauto_da_alloc,resgid=1065,errors=panic,stripe=4096,data=ordered)
/sbin/.magisk/block/data on /sbin/.magisk/modules type ext4 (rw,seclabel,relatime,noauto_da_alloc,resgid=1065,errors=panic,stripe=4096,data=ordered)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
mtp on /dev/usb-ffs/mtp type functionfs (rw,relatime)
ptp on /dev/usb-ffs/ptp type functionfs (rw,relatime)
/data/media on /mnt/runtime/default/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal)
/data/media on /storage/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=1015,multiuser,mask=6,derive_gid,default_normal)
/data/media on /mnt/runtime/read/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=23,derive_gid,default_normal)
/data/media on /mnt/runtime/write/emulated type sdcardfs (rw,nosuid,nodev,noexec,noatime,fsuid=1023,fsgid=1023,gid=9997,multiuser,mask=7,derive_gid,default_normal)
pstore on /sys/fs/pstore type pstore (rw,seclabel,relatime)
walleye:/system/lib #