This avoids rumpdisk crash when booting without "noide".

Upstream status: Taken from Debian Salsa package git

    https://salsa.debian.org/hurd-team/hurd/-/blob/f40ff84260b5a98bea949013415a1c92c127a43e/debian/patches/rumpdisk-no-hd

Index: hurd-debian/rumpdisk/block-rump.c
===================================================================
--- hurd-debian.orig/rumpdisk/block-rump.c
+++ hurd-debian/rumpdisk/block-rump.c
@@ -143,7 +143,6 @@ rumpdisk_device_init (void)
     {
       device_t device;
 
-#if 0
       if (! device_open (device_master, D_READ, "hd0", &device)
        || ! device_open (device_master, D_READ, "hd1", &device)
        || ! device_open (device_master, D_READ, "hd3", &device)
@@ -154,7 +153,6 @@ rumpdisk_device_init (void)
 	  disabled = 1;
 	  return;
 	}
-#endif
 
       if (! device_open (device_master, D_READ, "sd0", &device)
        || ! device_open (device_master, D_READ, "sd1", &device)
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<div class='path'>path: <a href='/guix/log/?id=32523ddf4d266b18911dc1aa07d375e9cffb2efe'>root</a>/<a href='/guix/log/tests?id=32523ddf4d266b18911dc1aa07d375e9cffb2efe'>tests</a>/<a href='/guix/log/tests/guix-style.sh?id=32523ddf4d266b18911dc1aa07d375e9cffb2efe'>guix-style.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-style.sh?id=32523ddf4d266b18911dc1aa07d375e9cffb2efe&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-04-21 16:16:38 +0200'>2023-04-21</span></td><td><a href='/guix/commit/tests/guix-style.sh?id=37dd69b44511dc73eb04bdebe8d82c9a0386338e'>tests: Fix checks for expected failures.</a><span class='msg-avail'>...<span class='msg-tooltip'>Addresses &lt;https://issues.guix.gnu.org/62406&gt;.

With 'set -e', a return status inverted with '!' does not cause the shell to
exit immediately.  Instead use '&amp;&amp; false' to indicate an expected failure.

* tests/guix-archive.sh, tests/guix-build-branch.sh, tests/guix-build.sh,
tests/guix-daemon.sh, tests/guix-download.sh,
tests/guix-environment-container.sh, tests/guix-environment.sh,
tests/guix-gc.sh, tests/guix-git-authenticate.sh, tests/guix-graph.sh,
tests/guix-hash.sh, tests/guix-home.sh, tests/guix-pack-relocatable.sh,
tests/guix-pack.sh, tests/guix-package-aliases.sh, tests/guix-package-net.sh,
tests/guix-package.sh, tests/guix-refresh.sh, tests/guix-shell.sh,
tests/guix-style.sh, tests/guix-system.sh: Replace uses of '! ...' with
'... &amp;&amp; false' or `test ! ...` as appropriate.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Eric Bavier</td></tr>
<tr><td><span title='2022-08-08 11:53:33 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/guix-style.sh?id=a15542d26df42dabdb5e2f76d150ae200230c3b0'>style: Add '--whole-file' option.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/style.scm (format-whole-file): New procedure.
(%options, show-help): Add '--whole-file'.
(guix-style): Honor it.
* tests/guix-style.sh: New file.
* Makefile.am (SH_TESTS): Add it.
* doc/guix.texi (Invoking guix style): Document it.
</span></span></td><td>Ludovic Courtès</td></tr>