失败make并且chown /acct/uid_0：
只读文件系统
我有一个 i.xm6q sabresd 参考板，另一个是基于 i.mx6 的开发板。
我正在尝试将 Android O 移植到开发板上，我几乎已经完成了，但我遇到了很多这样的错误，
[ 7.066508] random: watchdogd: uninitialized urandom read (40 bytes read)
[ 7.075946] watchdogd: watchdogd started (interval 10, margin 20)!
[ 7.089698] EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: barrier=1
[ 7.146760] random: tune2fs: uninitialized urandom read (40 bytes read)
[ 7.285261] random: tune2fs: uninitialized urandom read (40 bytes read)
[ 7.368367] tune2fs: tune2fs 1.43.3 (04-Sep-2016)
[ 7.368367]
[ 7.377979] EXT4-fs (mmcblk0p10): Ignoring removed nomblk_io_submit option
[ 7.390407] EXT4-fs (mmcblk0p10): mounted filesystem with ordered data mode. Opts: errors=remount-ro,nomblk_io_submit
[ 7.463106] random: e2fsck: uninitialized urandom read (40 bytes read)
[ 7.494389] random: e2fsck: uninitialized urandom read (40 bytes read)
[ 7.662366] e2fsck: e2fsck 1.43.3 (04-Sep-2016)
[ 7.662366]
[ 7.668482] e2fsck: Pass 1: Checking inodes, blocks, and sizes
[ 7.668482]
[ 7.675830] e2fsck: Pass 2: Checking directory structure
[ 7.675830]
[ 7.682633] e2fsck: Pass 3: Checking directory connectivity
[ 7.682633]
[ 7.689749] e2fsck: Pass 4: Checking reference counts
[ 7.689749]
[ 7.696309] e2fsck: Pass 5: Checking group summary information
[ 7.696309]
[ 7.703632] e2fsck: userdata: 11/315120 files (0.0% non-contiguous), 55023/1260032 blocks
[ 7.703632]
[ 7.724024] EXT4-fs (mmcblk0p10): Ignoring removed nomblk_io_submit option
[ 7.736138] EXT4-fs (mmcblk0p10): mounted filesystem with ordered data mode. Opts: nomblk_io_submit,noauto_da_alloc,errors=panic
[ 7.752848] EXT4-fs (mmcblk0p4): Ignoring removed nomblk_io_submit option
[ 7.765317] EXT4-fs (mmcblk0p4): mounted filesystem with ordered data mode. Opts: nomblk_io_submit
[ 7.787667] EXT4-fs (mmcblk0p9): mounted filesystem with ordered data mode. Opts: barrier=1
[ 7.838798] random: fast init done
[ 7.908721] zram0: detected capacity change from 0 to 314572800
[ 7.977162] mkswap: Swapspace size: 307196k, UUID=90d23762-1dcf-4195-945c-5aca95fcb0f2
[ 7.986869] Adding 307196k swap on /dev/block/zram0. Priority:-1 extents:1 across:307196k SS
[ 7.987717] logd.auditd: start
[ 7.987749] logd.klogd: 7963870334
[ 8.134332] binder: 1393:1393 ioctl 620a 33c57e62 returned -22
[ 8.404796] logd.daemon: reinit
[ 8.634235] type=1400 audit(8.600:6): avc: granted { read } for pid=1 comm="init" name="ttymxc0" dev="tmpfs" ino=1145 scontext=u:r:init:s0 tcontext=u:object_r:tty_device:s0 tclass=chr_file
[ 8.697581] type=1400 audit(8.600:6): avc: granted { read } for pid=1 comm="init" name="ttymxc0" dev="tmpfs" ino=1145 scontext=u:r:init:s0 tcontext=u:object_r:tty_device:s0 tclass=chr_file
[ 8.715766] type=1400 audit(8.600:7): avc: granted { read open } for pid=1 comm="init" path="/dev/ttymxc0" dev="tmpfs" ino=1145 scontext=u:r:init:s0 tcontext=u:object_r:tty_device:s0 tclass=chr_file
[ 8.733728] type=1400 audit(8.600:7): avc: granted { read open } for pid=1 comm="init" path="/dev/ttymxc0" dev="tmpfs" ino=1145 scontext=u:r:init:s0 tcontext=u:object_r:tty_device:s0 tclass=chr_file
[ 8.751507] type=1400 audit(8.630:8): avc: granted { read } for pid=1468 comm="init" name="ttymxc0" dev="tmpfs" ino=1145 scontext=u:r:init:s0 tcontext=u:object_r:tty_device:s0 tclass=chr_file
[ 8.770114] type=1400 audit(8.630:8): avc: granted { read } for pid=1468 comm="init" name="ttymxc0" dev="tmpfs" ino=1145 scontext=u:r:init:s0 tcontext=u:object_r:tty_device:s0 tclass=chr_file
[ 8.799949] type=1400 audit(8.630:9): avc: granted { read open } for pid=1468 comm="init" path="/dev/ttymxc0" dev="tmpfs" ino=1145 scontext=u:r:init:s0 tcontext=u:object_r:tty_device:s0 tclass=chr_file
navico_6dq:/ $ [ 8.859894] healthd: unable to get HAL interface, using defaults
[ 8.868377] healthd: No battery devices found
[ 8.872812] healthd: battery l=100 v=0 t=42.4 h=2 st=2 chg=a
[ 13.370447] init: starting service 'netd'...
[ 13.375873] init: Failed to make and chown /acct/uid_0: Read-only file system
[ 13.377373] init: Created socket '/dev/socket/netd', mode 660, user 0, group 1000
[ 13.378034] init: Created socket '/dev/socket/dnsproxyd', mode 660, user 0, group 3003
[ 13.378621] init: Created socket '/dev/socket/mdns', mode 660, user 0, group 1000
[ 13.379162] init: Created socket '/dev/socket/fwmarkd', mode 660, user 0, group 3003
[ 13.414039] init: createProcessGroup(0, 1619) failed for service 'netd': Read-only file system
[ 13.423010] init: property_set("ro.boottime.netd", "13351604334") failed: property already set
[ 13.661802] init: starting service 'mediaextractor'...
[ 13.668095] init: Failed to make and chown /acct/uid_1040: Read-only file system
[ 18.375988] init: starting service 'netd'...
[ 18.381839] init: Failed to make and chown /acct/uid_0: Read-only file system
[ 18.383204] init: Created socket '/dev/socket/netd', mode 660, user 0, group 1000
[ 18.383858] init: Created socket '/dev/socket/dnsproxyd', mode 660, user 0, group 3003
[ 18.384471] init: Created socket '/dev/socket/mdns', mode 660, user 0, group 1000
[ 18.385035] init: Created socket '/dev/socket/fwmarkd', mode 660, user 0, group 3003
[ 18.421917] init: createProcessGroup(0, 1732) failed for service 'netd': Read-only file system
[ 18.431026] init: property_set("ro.boottime.netd", "18357515002") failed: property already set
[ 18.668197] init: starting service 'mediaextractor'...
[ 18.674552] init: Failed to make and chown /acct/uid_1040: Read-only file system
[ 20.117228] capability: warning: `main' uses 32-bit capabilities (legacy support in use)
[ 23.384442] init: Created socket '/dev/socket/netd', mode 660, user 0, group 1000
[ 23.392732] init: Created socket '/dev/socket/dnsproxyd', mode 660, user 0, group 3003
[ 23.401652] init: Created socket '/dev/socket/mdns', mode 660, user 0, group 1000
[ 23.410060] init: Created socket '/dev/socket/fwmarkd', mode 660, user 0, group 3003
[ 23.674667] init: starting service 'mediaextractor'...
[ 23.680775] init: Failed to make and chown /acct/uid_1040: Read-only file system
[ 23.688421] init: createProcessGroup(1040, 1871) failed for service 'mediaextractor': Read-only file system
[ 23.698493] init: property_set("ro.boottime.mediaextractor", "23656648336") failed: property already set
[ 23.708514] init: starting service 'wificond'...
[ 23.714374] init: Failed to make and chown /acct/uid_1010: Read-only file system
developmet_6dq:/ $
我看到这些错误：
init: Failed to make and chown /acct/uid_1040: Read-only file system
问题
- 我不知道去哪里寻找解决和调试它。
- 我可以执行 su 并获得 root 访问权限，但为什么它不作为 root 挂载？