[PATCH] wic/plugins: fix kernel version detection for bios

[PATCH] wic/plugins: fix kernel version detection for bios

[Henning Schild]

From: Henning Schild <henning.schild@siemens.com>

The mechanism used to "cut off the end" seems to cut off too much.

>>> "vmlinuz-4.19.0-14-amd64".strip('-' + 'amd64')
'vmlinuz-4.19.0-1'

But indeed we would hope for 'vmlinuz-4.19.0-14'. This is a fix that
should be aplied asap, it seems to affect all "even" kernel revisions,
"odd" is odly enough no problem.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
---
 meta/scripts/lib/wic/plugins/source/bootimg-pcbios-isar.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/scripts/lib/wic/plugins/source/bootimg-pcbios-isar.py b/meta/scripts/lib/wic/plugins/source/bootimg-pcbios-isar.py
index 493615b481..503c471cce 100644
--- a/meta/scripts/lib/wic/plugins/source/bootimg-pcbios-isar.py
+++ b/meta/scripts/lib/wic/plugins/source/bootimg-pcbios-isar.py
@@ -135,7 +135,7 @@ class BootimgPcbiosIsarPlugin(SourcePlugin):
             kernel_name = get_bitbake_var("KERNEL_NAME")
             rootfs_dir = get_bitbake_var("IMAGE_ROOTFS")
             kernel = os.path.basename(os.path.realpath(os.path.join(rootfs_dir, kernel_file)))
-            kernel_version = kernel.strip('-' + kernel_name).strip(kernel_file + '-')
+            kernel_version = kernel[len(kernel_file)+1:-(len(kernel_name)+1)]
             initrd = "initrd.img-%s-%s" % (kernel_version, kernel_name)
 
             syslinux_conf += "KERNEL " + kernel + "\n"
-- 
2.26.2