Mikrotik Hex S RB760iGS - Extroot configuration reset after power cycle

Installing and Using OpenWrt
1

Hi,
I have configured SDCard for extroot. But after the power cycle, it reset to internal memory. How should we mount it permanently?

2

More information, please.

3

When there is a power cut, /overlay is mounted to internal memory rather than using the memory card.

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I use luci Web interface to mount /overlay to sdcard then restart it. wow, it starts working.

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Is there any way to mount it permanently to sdcard whenever there is a power cut?

4

If settings are lost, there would be no way, because they are lost...?

Catch 22.

1 Like
5

Is this possible to run setting/command at kernel level boot every time when it start? If yes how we can do it? From my view point we can run but my knowledge is limited.

6

does all settings get wiped, or only the exroot ?

7

The setting reset. I can see the partition on sdcard. I need to mount it again to overlay and reboot it to work out.

8

I did not check whether password and other thing reset.

9

@frollic I run router from SDcard root file then mount the internal memory. Then change to upper folder then etc folder. I have edited mtab file.
Before

/dev/root /rom squashfs ro,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,noatime 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,noatime 0 0
cgroup2 /sys/fs/cgroup cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate 0 0
tmpfs /tmp tmpfs rw,nosuid,nodev,noatime 0 0
/dev/mtdblock9 /overlay jffs2 rw,noatime 0 0
overlayfs:/overlay / overlay rw,noatime,lowerdir=/,upperdir=/overlay/upper,work>
tmpfs /dev tmpfs rw,nosuid,relatime,size=512k,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,mode=600,ptmxmode=000 0 0
debugfs /sys/kernel/debug debugfs rw,noatime 0 0
none /sys/fs/bpf bpf rw,nosuid,nodev,noexec,noatime,mode=700 0 0

After change to:

/dev/root /rom squashfs ro,noatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,noatime 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,noatime 0 0
cgroup2 /sys/fs/cgroup cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate 0 0
tmpfs /tmp tmpfs rw,nosuid,nodev,noatime 0 0
/dev/mmcblk0p1 / ext4 rw,relatime 0 0
tmpfs /dev tmpfs rw,nosuid,relatime,size=512k,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,mode=600,ptmxmode=000 0 0
debugfs /sys/kernel/debug debugfs rw,noatime 0 0
none /sys/fs/bpf bpf rw,nosuid,nodev,noexec,noatime,mode=700 0 0

Now then whenever power is reset it always mounts to SDcard rather than internal memory.
I do not know what will happen if SDCard corrupt in between?

Regards