[PATCH] avoid double slash in generated rootfs umount paths

["srinuvasan.a via isar-users" <isar-users@googlegroups.com>]

From: Srinuvasan A <srinuvasan.a@siemens.com>

ROOTFS_MOUNTS inner paths are absolute, e.g. /isar-apt and
/isar-work. insert_isar_umounts added another slash between ROOTFSDIR
and the inner path, producing paths like rootfs//isar-apt in the
expanded rootfs_do_umounts_priv task.

Strip the leading slash from the inner mount path when building the
mountpoint, matching the logic already used by insert_isar_mounts.

Logs:
mountpoint -q /work/build/tmp/work/debian-trixie-amd64/isar-image-base-qemuamd64/1.0-r0/rootfs//isar-apt &&
 umount /work/build/tmp/work/debian-trixie-amd64/isar-image-base-qemuamd64/1.0-r0/rootfs//isar-apt

mountpoint -q /work/build/tmp/work/debian-trixie-amd64/isar-image-base-qemuamd64/1.0-r0/rootfs//isar-work &&
 umount /work/build/tmp/work/debian-trixie-amd64/isar-image-base-qemuamd64/1.0-r0/rootfs//isar-work

Signed-off-by: Srinuvasan A <srinuvasan.a@siemens.com>
---
 meta/classes-global/base.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes-global/base.bbclass b/meta/classes-global/base.bbclass
index 8f81ab70..be663fe7 100644
--- a/meta/classes-global/base.bbclass
+++ b/meta/classes-global/base.bbclass
@@ -432,7 +432,7 @@ def insert_isar_umounts(d, rootfs, mounts):
 
     for m in mounts.split():
         host, inner = m.split(':') if ':' in m else (m, m)
-        mp = '{}/{}'.format(rootfs, inner)
+        mp = '{}/{}'.format(rootfs, inner[1:])
         lines.append('mountpoint -q {} && umount {}'.format(mp, mp))
         lines.append('[ -d {} ] && rmdir --ignore-fail-on-non-empty {}'.format(mp, mp))
     return '\n'.join(lines)
-- 
2.39.5

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