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16 | [Unit]
Description=Mount /tmp as tmpfs if nearly full
DefaultDependencies=no
Conflicts=umount.target
Before=local-fs.target umount.target
After=tmp.mount
ConditionPathIsSymbolicLink=!/tmp
ConditionPathIsReadWrite=/tmp
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/sh -ec "[ `df -BM -P /tmp/ | awk 'NR==2 { print substr($4, 0, length($4)-1) }'` -lt 50 ] && mount -t tmpfs -o mode=1777 overflow /tmp"
[Install]
WantedBy=local-fs.target
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