47dc7d0130
Commit c046b23ea29e0183c899a8dbe1da3bed3440a255 prevented frozen boot code from being interrupted by Ctrl-C, but that means a corrupt filesystem will forever lock up an esp32/esp8266 board. This commit fixes that by explicitly enabling Ctrl-C before running the forever loop. Signed-off-by: Damien George <damien@micropython.org>
54 lines
1.1 KiB
Python
54 lines
1.1 KiB
Python
import os
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from flashbdev import bdev
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def check_bootsec():
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buf = bytearray(bdev.ioctl(5, 0)) # 5 is SEC_SIZE
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bdev.readblocks(0, buf)
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empty = True
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for b in buf:
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if b != 0xFF:
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empty = False
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break
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if empty:
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return True
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fs_corrupted()
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def fs_corrupted():
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import time
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import micropython
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# Allow this loop to be stopped via Ctrl-C.
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micropython.kbd_intr(3)
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while 1:
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print(
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"""\
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The filesystem appears to be corrupted. If you had important data there, you
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may want to make a flash snapshot to try to recover it. Otherwise, perform
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factory reprogramming of MicroPython firmware (completely erase flash, followed
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by firmware programming).
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"""
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)
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time.sleep(3)
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def setup():
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check_bootsec()
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print("Performing initial setup")
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os.VfsLfs2.mkfs(bdev)
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vfs = os.VfsLfs2(bdev)
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os.mount(vfs, "/")
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with open("boot.py", "w") as f:
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f.write(
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"""\
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# This file is executed on every boot (including wake-boot from deepsleep)
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#import esp
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#esp.osdebug(None)
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#import webrepl
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#webrepl.start()
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"""
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)
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return vfs
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