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Raspberry Pi OS • Re: upgrade on Raspberry pi B (256mb) failing

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Reexecute daemon failed: Refusing to reexecute, not enough space available on /run/systemd. Currently, 15.7M are free, but a safety buffer of 16.0M is enforced.
Is there anything I can do like change the values of the tmpfs to resolve?
That reexecute message is the root cause. They didn't set the default right for small Raspberries.

It's explained on the link here: viewtopic.php?p=2326418&hilit=reexecute+daemon#p2328095

There is a simple solution.
sudo mount -t tmpfs -o “noexec,nosuid,size=${RUNSIZE:-20%},mode=0755” tmpfs /run
Then set it permanently in /etc/initramfs-tools/initramfs.conf.

Statistics: Posted by DougieLawson — Mon Aug 04, 2025 6:30 am



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