git: ad2ca1c5c179 - stable/15 - vmimage.subr: Sort METALOG before running makefs

The branch stable/15 has been updated by cperciva:

URL: https://cgit.FreeBSD.org/src/commit/?id=ad2ca1c5c17935d8601b3ee48f705e1e5ede57bc

commit ad2ca1c5c17935d8601b3ee48f705e1e5ede57bc
Author:     Colin Percival <cperciva@FreeBSD.org>
AuthorDate: 2025-10-12 04:32:29 +0000
Commit:     Colin Percival <cperciva@FreeBSD.org>
CommitDate: 2025-10-15 05:57:20 +0000

    vmimage.subr: Sort METALOG before running makefs
    
    When creating VM images from pkgbase, the METALOG may not be in order;
    in particular, files may be listed before the directories which contain
    them.  This causes makefs to create directories with 000 permissions.
    
    Interestingly, such VM images boot just fine, since root ignores those
    permissions; the first sign of trouble was sshd refusing logins with an
    error message which said absolutely nothing about /etc/ having
    incorrect permissions or being unable to read files inside it.
    
    Immediately prior to running makefs, sort the METALOG file.  While
    we're here, uniquify as well; this does not guarantee that we do not
    have duplicate paths, but if there are duplicate paths with different
    settings something else has gone wrong and we don't really have any
    good way of solving the problem anyway.
    
    Reviewed by:    ivy
    Hint from:      imp
    MFC after:      3 days
    Sponsored by:   https://www.patreon.com/cperciva
    Differential Revision:  https://reviews.freebsd.org/D53046
    
    (cherry picked from commit 0cc81b375ea43c7e853b109d00c72c8c3b3df993)
---
 release/tools/vmimage.subr | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/release/tools/vmimage.subr b/release/tools/vmimage.subr
index 15c4dd53e70b..c3c917dcd642 100644
--- a/release/tools/vmimage.subr
+++ b/release/tools/vmimage.subr
@@ -290,6 +290,11 @@ buildfs() {
 		cat ${DESTDIR}/METALOG.pkg >> ${DESTDIR}/METALOG
 	fi
 
+	# Sort METALOG file; makefs produces directories with 000 permissions
+	# if their contents are seen before the directories themselves.
+	env -i LC_COLLATE=C sort -u ${DESTDIR}/METALOG > ${DESTDIR}/METALOG.sorted
+	mv ${DESTDIR}/METALOG.sorted ${DESTDIR}/METALOG
+
 	case "${VMFS}" in
 	ufs)
 		cd ${DESTDIR} && ${MAKEFS} ${MAKEFSARGS} -o label=rootfs -o version=2 -o softupdates=1 \