SD卡启动,如何挂载剩余容量为overlayfs

allwinner_account LV 5

小白根据教程编译的标准tina镜像,烧录SD卡启动,使用opkg安装应用时报只读错误.
翻阅论坛帖子和相关资料后了解到需要配置overlayfs才可以写入,尝试配置后依然无法工作,想问问各位大佬还有哪里需要修改?

下面是我已经做的修改
修改.\device\config\chips\d1-h\configs\nezha\sys_partition.fex文件

[partition]
    name         = rootfs_data
    size         = 8388608
    downloadfile = "/home/ubt/tina-d1-h/fex/rootfs_data.fex"
    user_type    = 0x8000

使用./out/host/bin/make_ext4fs创建文件系统,这里的null为空目录

home/ubt/tina-d1-h/out/d1-h-nezha/image/rootfs_data.fex /home/ubt/tina-d1-h/null
Creating filesystem with parameters:
    Size: 8388608
    Block size: 1024
    Blocks per group: 8192
    Inodes per group: 2048
    Inode size: 256
    Journal blocks: 1024
    Label: 
    Blocks: 8192
    Block groups: 1
    Reserved blocks: 0
    Reserved block group size: 31
Created filesystem with 11/2048 inodes and 1575/8192 blocks

烧录运行后查看挂载情况,还是没有overlayfs挂载

root@TinaLinux:/# df -kh
Filesystem                Size      Used Available Use% Mounted on
/dev/root                15.8M     15.8M         0 100% /
devtmpfs                492.8M         0    492.8M   0% /dev
tmpfs                   498.9M     32.0K    498.9M   0% /tmp
/dev/mmcblk0p1            8.0M     66.0K      7.9M   1% /mnt/SDCARD

root@TinaLinux:/# mount
/dev/root on / type squashfs (ro,noatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=504672k,nr_inodes=126168,mode=7
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600,ptmxmode=000)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
none on /sys/kernel/config type configfs (rw,relatime)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
/dev/mmcblk0p1 on /mnt/SDCARD type vfat (rw,relatime,fmask=0000,dmask=0000,allowhortname=mixed,errors=remount-ro)

fstab文件

config 'mount'
        option  target          '/boot'
        option  device          '/dev/by-name/boot'
        option  options         'ro,sync'
        option  enabled         '1'

config 'mount'
        option  target          '/boot-res'
        option  device          '/dev/by-name/boot-res'
        option  options         'ro,sync'
        option  enabled         '1'

config 'mount'
        option  target          '/mnt/UDISK'
        option  device          '/dev/by-name/UDISK'
        option  options         'rw,async'
        option  enabled         '0'

config 'mount'
        option  target          '/overlay'
        option  device          '/dev/by-name/UDISK'
        option  options         'rw,async'
        option  enabled         '1'

config 'mount'
        option  target          '/mnt/SDCARD'
        option  device          '/dev/mmcblk0'
        option  options         'rw,async'
        option  enabled         '1'

config 'mount'
        option  target          '/mnt/SDCARD'
        option  device          '/dev/mmcblk0p1'
        option  options         'rw,async'
        option  enabled         '1'

config 'mount'
        option  target          '/mnt/exUDISK'
        option  device          '/dev/sda'
        option  options         'rw,async'
        option  enabled         '1'

config 'mount'
        option  target          '/mnt/exUDISK'
        option  device          '/dev/sda1'
        option  options         'rw,async'
        option  enabled         '1'

yixiuge LV 5

root@TinaLinux:/#
root@TinaLinux:/# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/root                17152     17152         0 100% /rom
devtmpfs                 26312         0     26312   0% /dev
tmpfs                    28412        32     28380   0% /tmp
tmpfs                    28412        20     28392   0% /tmp/root
overlayfs:/tmp/root      28412        20     28392   0% /
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/# mount
/dev/root on /rom type squashfs (ro,relatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=26312k,nr_inodes=6578,mode=755)
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
tmpfs on /tmp/root type tmpfs (rw,noatime,mode=755)
overlayfs:/tmp/root on / type overlay (rw,noatime,lowerdir=/,upperdir=/tmp/root/upper,workdir=/tmp/root/work)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600,ptmxmode=000)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
none on /sys/kernel/config type configfs (rw,relatime)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/#
root@TinaLinux:/# ls /tmp/root/
upper  work
root@TinaLinux:/#
root@TinaLinux:/#

看下我的

allwinner_account LV 5

@yixiuge 请问是不是fstab文件还需要什么更改啊

allwinner_account LV 5

补充一下,改完sys_partition.fex之后我执行了mboot和pack指令,起初我把make_ext4fs生成的文件放在out目录下,打包时似乎会直接被顶掉找不到,所以我后面放在外面了

allwinner_account LV 5

又翻了遍手册,怎么感觉按默认配置什么都不改UDISK会自动分配剩余大小然后挂载到overlayfs的,但实际上不行?

config 'mount'
	option  target		'/overlay'
	option	device		'/dev/by-name/UDISK'
	option	options		'rw,async'
	option	enabled		'1'

是否是overlayfs还需要什么配置才能启用?但是在defconfig文件内也没有找到

allwinner_account LV 5

尝试更改了多次fstab和sys_partition文件都没什么用,注意到开机时有报错

formating /dev/by-name/UDISK to ext4
/etc/preinit: line 1: mkfs.ext4: not found
formating /dev/by-name/rootfs_data to ext4
/etc/preinit: line 1: mkfs.ext4: not found

是因为没有成功创建ext4文件系统导致的?

whycan晕哥 LV 9

@allwinner_account

修改 target/allwinner/d1-h-nezha/defconfig (注意路径)

打开：

CONFIG_PACKAGE_e2fsprogs=y

allwinner_account LV 5

@whycan 在 SD卡启动,如何挂载剩余容量为overlayfs 中说：

e2fsprogs

感谢大佬回复,还是不行
这是我现在运行的一些信息

root@TinaLinux:/# df -kh
Filesystem                Size      Used Available Use% Mounted on
/dev/root                16.0M     16.0M         0 100% /
devtmpfs                492.8M         0    492.8M   0% /dev
tmpfs                   498.9M     32.0K    498.9M   0% /tmp
root@TinaLinux:/# mount
/dev/root on / type squashfs (ro,noatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=504672k,nr_inodes=126168,mode=755)
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600,ptmxmode=000)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
none on /sys/kernel/config type configfs (rw,relatime)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
root@TinaLinux:/# cd dev/
root@TinaLinux:/dev# ls
mmcblk0          mmcblk0p1        mmcblk0p2        mmcblk0p3        mmcblk0p4        mmcblk0p5        mmcblk0p6        mmcblk0p7        mmcblk0p8        mmcblk0p9  ...
root@TinaLinux:/dev# cd by-name/
root@TinaLinux:/dev/by-name# ls
UDISK          boot-resource  env            recovery       rootfs_data
boot           dsp0           env-redund     rootfs

我用的tf卡是一张16g的,被分成了9个分区,根据手册描述默认是加载第一个分区,和之前的运行情况一致.
当前fstab文件的配置

config 'mount'
        option  target          '/mnt/UDISK'
        option  device          '/dev/by-name/UDISK'
        option  options         'rw,async'
        option  enabled         '0'

config 'mount'
        option  target          '/overlay'
        option  device          '/dev/by-name/UDISK'
        option  options         'rw,async'
        option  enabled         '1'

config 'mount'
  option  target    '/overlay'
  option  device    '/dev/by-name/rootfs_data'
  option  options   'rw,sync'
  option  enabled   '1'

config 'mount'
        option  target          '/mnt/SDCARD'
        option  device          '/dev/mmcblk0'
        option  options         'rw,async'
        option  enabled         '1'

config 'mount'
        option  target          '/mnt/SDCARD'
        option  device          '/dev/mmcblk0p1'
        option  options         'rw,async'
        option  enabled         '0'

有个小疑问,这里都是将by-name目录下的udisk或者rootfs_data挂载到某一个分区,这个所谓的udisk/rootfs_data是怎么和实际设备mmcblk0联系起来的呢?
然后我也尝试了手动挂载,报错都是一样

mount rootfs_data /overlay/
NTFS signature is missing.
Failed to mount '/dev/mmcblk0p8': Invalid argument
The device '/dev/mmcblk0p8' doesn't seem to have a valid NTFS.

无效的NTFS系统?是否和sd卡文件系统的格式有关?我是直接phoenixCard刷的
太多疑问了,搞不明白

whycan晕哥 LV 9

@allwinner_account

mkfs.ext4 可以执行吗？

allwinner_account LV 5

@whycan 不可以执行,提示找不到

whycan晕哥 LV 9

@allwinner_account

贴日志看看。

allwinner_account LV 5

@whycan 可以了!!!

root@TinaLinux:/# df -kh
Filesystem                Size      Used Available Use% Mounted on
/dev/root                16.3M     16.3M         0 100% /rom
devtmpfs                492.8M         0    492.8M   0% /dev
tmpfs                   498.9M     32.0K    498.9M   0% /tmp
/dev/by-name/rootfs_data
                        891.0K     49.0K    802.0K   6% /overlay
overlayfs:/overlay      891.0K     49.0K    802.0K   6% /
/dev/by-name/UDISK       13.1G     24.0K     13.1G   0% /mnt/UDISK
root@TinaLinux:/# mount
/dev/root on /rom type squashfs (ro,noatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=504672k,nr_inodes=126168,mode=755)
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
/dev/by-name/rootfs_data on /overlay type ext4 (rw,relatime)
overlayfs:/overlay on / type overlay (rw,noatime,lowerdir=/,upperdir=/overlay/upper,workdir=/overlay/work)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600,ptmxmode=000)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
none on /sys/kernel/config type configfs (rw,relatime)
adb on /dev/usb-ffs/adb type functionfs (rw,relatime)
/dev/by-name/UDISK on /mnt/UDISK type ext4 (rw,relatime)

刚才终于搞明白了fstab和sys_oartition.fex的对应关系重新配置了一下就可以了,现在是这么设置的

config 'mount'
	option  target		'/overlay'
	option	device		'/dev/by-name/rootfs_data'
	option	options		'rw,async'
	option	enabled		'1'

config 'mount'
	option  target		'/mnt/UDISK'
	option	device		'/dev/by-name/UDISK'
	option	options		'rw,async'
	option	enabled		'1'

[partition]
    name         = rootfs_data
    size         = 2097152
    downloadfile = "/home/ubt/tina-d1-h/fex/2Gb.fex"
    user_type    = 0x8000

[partition]
    name = UDISK
    user_type = 0x8000

就是rootfs_data我设置的是2G,不知道为啥它变成891k了
这个2Gb.fex我是用这个rootfs_data.fex生成的

allwinner_account LV 5

试了下不配置downloadfile也是可行的,初始化时可以根据大小自动格式化系统

formating /dev/by-name/UDISK to ext4
mke2fs 1.46.4 (18-Aug-2021)
[    4.827559] random: mkfs.ext4: uninitialized urandom read (16 bytes read)
[    4.835361] random: mkfs.ext4: uninitialized urandom read (16 bytes read)
Creating filesystem with 3516935 4k blocks and 879552 inodes
Filesystem UUID: 84f444b8-02d2-4035-b7b1-ec4f15a8f417
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208

Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): [    6.281300]
[    6.281300] insmod_device_driver
[    6.281300]
[    6.288462] sunxi_usb_udc 4100000.udc-controller: 4100000.udc-controller supply udc not found, using dummy regulator
[    6.321295] hdmi_hpd_sys_config_release
done
Writing superblocks and filesystem accounting information: done

formating /dev/by-name/rootfs_data to ext4
mke2fs 1.46.4 (18-Aug-2021)
[   17.598480] random: mkfs.ext4: uninitialized urandom read (16 bytes read)
[   17.606271] random: mkfs.ext4: uninitialized urandom read (16 bytes read)
Creating filesystem with 262144 4k blocks and 65536 inodes
Filesystem UUID: 56bbb4d6-0db1-47ec-a35c-f66492e4fdad
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376

Allocating group tables: done
Writing inode tables: done
Creating journal (8192 blocks): done
Writing superblocks and filesystem accounting information: done

就是大小还不太对,我再研究下
总之还是感谢大佬帮助

linkeb LV 1

@allwinner_account 我也遇到这个问题，修改partion的rootfs_data size，最后pack出来的overlay还是不变，请问你后来找到原因了吗？