search command doesn't find anything

[Klemens Nanni]

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Hello,

using GRUB as of commit 7a210304 as autoboot payload.

I've got an USB device containing a file in it's root directory (ext4
formatted SD card).

        $ cat (usb0,1)/file_to_find

shows me the file's content as expected. However I wasn't able find
the device using GRUB's search command:

        $ search --file file_to_find
        $ search --file file_to_find --hint=usb0
        $ search --hint=usb0
        $ search --label SD
        $ ...

In fact, not a single variation of the search command worked: I
couldn't find a any device no matter if looking for files, labels or
using hints. According to search's help text, the above mentioned
commands seem to be correct.

To be clear: Every device or file I was searching for was available
all the time and could be accessed using 'ls' and 'cat'.

Am I missing something or is 'search' broken?

Regards,
Klemens Nanni
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