Losing extroot after reboot

Hi, did you manage to resolve your issue? I'm facing the similar one on any recent OpenWRT version (last 2 years), 2 different routers and flash drives.

I have moved your question to a new thread because you bumped a 5 year old thread. Things have changed significantly in OpenWrt since then, and what was relevant then may or may not be true now.

Please describe your question/problem in detail and let's see the output of this:

ubus call system board

I use OpenWrt on Archer C50 and C7, both with Android tethering and extroot (following official manual) connected through the USB hub (so 2 external devices in total). Everything works like a charm til some reboot (GUI, SSH or just power outlet): next power up the extroot is not mounted (as well as all packages on that flash drive). I don't have the exact logs atm but they contains something like "Bad magic number". fsck doesn't help. I can successfully re-format and re-configure this flash drive again by the same official manual. This setup can survive 2,3, 10... reboots but eventually this situation just repeats. OpenWrt 22.03 is affected 100%, not sure about 23. Is this some known issue? Did I miss some obvious config parameter? Or am I just the "lucky one"?

ubus call system board for Archer C7:

	"kernel": "5.15.137",
	"hostname": "312home",
	"system": "Qualcomm Atheros QCA956X ver 1 rev 0",
	"model": "TP-Link Archer C7 v5",
	"board_name": "tplink,archer-c7-v5",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "23.05.2",
		"revision": "r23630-842932a63d",
		"target": "ath79/generic",
		"description": "OpenWrt 23.05.2 r23630-842932a63d"

Share the output of this file, with and without usb flash drive connected.


Right now I don't have the failed flash drive to get some logs as I said earlier. Initially I just wanted to ask some guy with the similar problem (look for linked topic) did he manage to solve it but this is somehow turned into a separate thread. I guess this thread should be closed for now until I face off this bug again. Thank you all for attention and sorry for the inconvenience.

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