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target: ensure target/ dir is writable

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If the source target skeleton is read-only (eg. because Buildroot's
source dir is), modifications to the output target (such as creating
/etc/hostname and /etc/issue) fail.

(This can happen if the Buildroot source dir is NFS-mounted read-only
to be shared between different machines, for example).

Signed-off-by: Nathan Lynch <ntl@pobox.com>
[yann.morin.1998@free.fr: we use rsync now, not cp; --chmod=Du+w
 suggested by Arnout; clarify commit log]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Nathan Lynch 2014-01-28 21:11:21 +01:00 committed by Peter Korsgaard
parent 167ca173f6
commit 5f52d7a8bd
1 changed files with 2 additions and 2 deletions
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4
Makefile
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@ -473,7 +473,7 @@ RSYNC_VCS_EXCLUSIONS = \
$(BUILD_DIR)/.root: $(BUILD_DIR)/.root:
mkdir -p $(TARGET_DIR) mkdir -p $(TARGET_DIR)
rsync -a $(RSYNC_VCS_EXCLUSIONS) \ rsync -a $(RSYNC_VCS_EXCLUSIONS) \
--exclude .empty --exclude '*~' \ --chmod=Du+w --exclude .empty --exclude '*~' \
$(TARGET_SKELETON)/ $(TARGET_DIR)/ $(TARGET_SKELETON)/ $(TARGET_DIR)/
cp support/misc/target-dir-warning.txt $(TARGET_DIR_WARNING_FILE) cp support/misc/target-dir-warning.txt $(TARGET_DIR_WARNING_FILE)
@ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK) @ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK)
@ -549,7 +549,7 @@ endif
@$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \ @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
$(call MESSAGE,"Copying overlay $(d)"); \ $(call MESSAGE,"Copying overlay $(d)"); \
rsync -a $(RSYNC_VCS_EXCLUSIONS) \ rsync -a $(RSYNC_VCS_EXCLUSIONS) \
--exclude .empty --exclude '*~' \ --chmod=Du+w --exclude .empty --exclude '*~' \
$(d)/ $(TARGET_DIR)$(sep)) $(d)/ $(TARGET_DIR)$(sep))
@$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \ @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \