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-rwxr-xr-xdebian/apt.postinst15
1 files changed, 9 insertions, 6 deletions
diff --git a/debian/apt.postinst b/debian/apt.postinst
index 5820db587..b0a5da7d8 100755
--- a/debian/apt.postinst
+++ b/debian/apt.postinst
@@ -39,12 +39,15 @@ case "$1" in
fi
fi
- # add unprivileged user for the apt methods
- adduser --force-badname --system -home /var/empty \
- --no-create-home --quiet _apt || true
- chown -R _apt:root \
- /var/lib/apt/lists \
- /var/cache/apt/archives
+ # add unprivileged user for the apt methods
+ adduser --force-badname --system -home /var/empty \
+ --no-create-home --quiet _apt || true
+
+ # deal with upgrades from experimental
+ if dpkg --compare-versions "$2" 'eq' '1.1~exp3'; then
+ # libapt will setup partial/ at runtime
+ chown -R root:root /var/lib/apt/lists /var/cache/apt/archives || true
+ fi
# ensure tighter permissons on the logs, see LP: #975199
if dpkg --compare-versions "$2" lt-nl 0.9.7.7; then