Recent grub no longer detects non-LUKS ("plain dm-crypt") devices
properly. I think I tracked it down; the following patch fixes the
problem for me.
commit 4eb670dc50fe84012ec3e1f226ef9e94d8fa4b2b
Author: Corey Hickey <bugfoo...@fatooh.org>
Date: Sun Oct 30 22:35:32 2016 -0700
devmapper: fix detection of non-LUKS CRYPT
grub_util_get_dm_abstraction() does a string comparison of insufficient
length. When using a UUID such as "CRYPT-PLAIN-sda6_crypt", the function
returns GRUB_DEV_ABSTRACTION_LUKS.
This results in the error:
./grub-probe: error: disk `cryptouuid/sda6_crypt' not found.
This appears to be a copy/paste error introduced in:
a10e7a5a8918bea6e2632055129fa9b516fe965a
The bug was (apparently) latent until revealed by:
3bca85b4184f74995a7cc2791e432173fde26d34
Signed-off-by: Corey Hickey <bugfoo...@fatooh.org>
diff --git a/grub-core/osdep/devmapper/getroot.c
b/grub-core/osdep/devmapper/getroot.c
index 72e5582..a13a39c 100644
--- a/grub-core/osdep/devmapper/getroot.c
+++ b/grub-core/osdep/devmapper/getroot.c
@@ -143,7 +143,7 @@ grub_util_get_dm_abstraction (const char *os_dev)
grub_free (uuid);
return GRUB_DEV_ABSTRACTION_LVM;
}
- if (strncmp (uuid, "CRYPT-LUKS1-", 4) == 0)
+ if (strncmp (uuid, "CRYPT-LUKS1-", 12) == 0)
{
grub_free (uuid);
return GRUB_DEV_ABSTRACTION_LUKS;
Thanks,
Corey
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