[SOLVED] External HDD drive in read only mode (ext4)

[-iak-]

Hello everybody,

I believe that my USB drive has accidentally disconnected while the system was writing something on it, maybe the wire became faulty lately. All data seem to be fine, but everything is in read-only mode. Tried to change all files permissions with chmod but it doesn't work. So I unmounted it and tried this:

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rawyak@zenbook:~
$ sudo dosfsck -a /dev/sda1
fsck.fat 4.2 (2021-01-31)
Logical sector size is zero.

Now I don't know what to do. Is there a way to recover the filesystem without compromising the data?

[Huckleberry Finn]

Unmount it first :

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sudo umount /dev/sdX

Then:

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sudo hdparm -r0 /dev/sdX

(i.e. if it still shows as sda in your case: replace sdX with sda )

___________________________

In the meantime: It says ext4 in the title. If so why did you use dosfsck ?

Description
dosfsck verifies the consistency of MS-DOS file systems and optionally tries to repair them.

You need this (assuming it's ext4):

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sudo e2fsck -fyvC0 /dev/sda1

(again, assuming it's sda1 )

[-iak-]

In the meantime: It says ext4 in the title. If so why did you use dosfsck ?

Your suggestion worked as a charm, thank you. I used dosfsck because I found it on a guide but I don't know that tool.

[Huckleberry Finn]

Thank you, too for the feedback :)