BBS: TELESC.NET.BR Assunto: Re: Adding a hardware swap partition De: Richard Kettlewell Data: Mon, 16 Mar 2026 09:54:11 +0000 ----------------------------------------------------------- bp@www.zefox.net writes: > It was a surprise to learn that a single partition is somehow required > for RasPiOS to function correctly. If true, it's a good thing to know. Separate /usr probably still works, but I doubt it gets much testing. It?s really not going to make swapping significantly faster. Nor is trying to find an optimal location for swap - you have quite possibly already spent more time on the matter in this thread than you could ever possibly save. >> Back in the good old days there were enough programs in /bin (which >> was an actual directory, not a link to /usr/bin) to recover a system >> with disk errors (when possible, anyway). But now that /bin is a >> link, I wonder if the system will even boot properly, since "user >> space" would have to mount /usr before almost all (all?) programs are >> available. Including systemd. > > Given that RasPiOS has an /sbin directory, I'm pretty sure the machine > will come up at worst in single-user if /usr can't be mounted > normally. $ ls -ld /sbin lrwxrwxrwx 1 root root 8 Nov 17 2023 /sbin -> usr/sbin However I believe this is neither here nor there since initramfs is responsible for mounting /usr if it?s separate. If it fails to mount you will most likely end up in an initramfs shell (which is a pretty reasonable recovery environment). > Whether /home/, /var/ and /tmp/ can be links to /usr is less clear to > me at this point. You might run into trouble with AppArmor. Not particularly hard to fix. If all this is about adding some swap space then you are massively overcomplicating matters. If there?s no unpartitioned space left then just create a swapfile and get on with your life. If you do anything more complicated than that then make sure your backups are up to date first. -- https://www.greenend.org.uk/rjk/ --- PyGate Linux v1.5.13 * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10) ----------------------------------------------------------- [Voltar]