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VOLATILE_TMP_DIR: add

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Provide a mechanism to allow users to choose whether the /tmp directory
is on persistent storage (non-volatile) or a RAM-based tmpfs (volatile).
The default is volatile.

Works for both sysvinit-based and systemd-based systems.

(From OE-Core rev: 8b76c0637eaeaf5bd5e696680cd74b7a642f4157)

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Trevor Woerner
2023-02-27 00:00:40 -05:00
committed by Richard Purdie
parent ea4c56e2e8
commit d5d40479d7
3 changed files with 14 additions and 0 deletions
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4
meta/conf/bitbake.conf
View File

@@ -90,6 +90,10 @@ ROOT_HOME ??= "/home/root"
# If set to boolean false ('no', 'n', 'false', 'f', '0'), /var/log is on persistent storage.
VOLATILE_LOG_DIR ?= "yes"
# if set to 'yes': /tmp links to /var/tmp which links to /var/volatile/tmp
# otherwise: /tmp is on persistent storage
VOLATILE_TMP_DIR ?= "yes"
BB_RENAMED_VARIABLES[PNBLACKLIST] = "SKIP_RECIPE"
BB_RENAMED_VARIABLES[CVE_CHECK_PN_WHITELIST] = "CVE_CHECK_SKIP_RECIPE"
BB_RENAMED_VARIABLES[CVE_CHECK_WHITELIST] = "CVE_CHECK_IGNORE"

3
meta/recipes-core/initscripts/initscripts_1.0.bb
View File

@@ -108,6 +108,9 @@ do_install () {
sed -i -e '\@^d root root 0755 /var/volatile/log none$@ a\l root root 0755 /var/log /var/volatile/log' \
${D}${sysconfdir}/default/volatiles/00_core
fi
if [ "${VOLATILE_TMP_DIR}" != "yes" ]; then
sed -i -e "/\<tmp\>/d" ${D}${sysconfdir}/default/volatiles/00_core
fi
install -m 0755 ${WORKDIR}/dmesg.sh ${D}${sysconfdir}/init.d
install -m 0644 ${WORKDIR}/logrotate-dmesg.conf ${D}${sysconfdir}/

7
meta/recipes-core/systemd/systemd_252.5.bb
View File

@@ -288,6 +288,13 @@ do_install() {
rm -rf ${D}${localstatedir}/log/journal/remote
fi
# if the user requests /tmp be on persistent storage (i.e. not volatile)
# then don't use a tmpfs for /tmp
if [ "${VOLATILE_TMP_DIR}" != "yes" ]; then
rm -f ${D}${rootlibdir}/systemd/system/tmp.mount
rm -f ${D}${rootlibdir}/systemd/system/local-fs.target.wants/tmp.mount
fi
install -d ${D}${systemd_system_unitdir}/graphical.target.wants
install -d ${D}${systemd_system_unitdir}/multi-user.target.wants
install -d ${D}${systemd_system_unitdir}/poweroff.target.wants