[arch-general] suspend to RAM with home on NFS
Hi, how do you get suspend to RAM to work with home directories on NFS? Since I have /home mounted over NFS, suspending just freezes and I can only hold down the power button to turn the computer off.
Do you have _netdev option set for /home in fstab? I can't think of any reasons this would be a problem. It certainly wouldn't prevent you from suspending, if anything you'd just encounter trouble when resuming. Check your systemd config perhaps?
From the wiki here: https://wiki.archlinux.org/index.php/Power_management/Suspend_and_hibernate
If the swap file is in /home/, systemd-logind will not be able to determine
its size and thus will prevent hibernation. See systemd issue 15354 for a
workaround.
On Sun, Nov 1, 2020, 1:22 PM hw
Hi,
how do you get suspend to RAM to work with home directories on NFS? Since I have /home mounted over NFS, suspending just freezes and I can only hold down the power button to turn the computer off.
On Sun, 2020-11-01 at 13:29 -0800, Justin Capella via arch-general wrote:
Do you have _netdev option set for /home in fstab?
_netdev? No, I have added it now and will have to see what happens next time I reboot. Is that even required when the fstype is NFS? Who would mount a file system via NFS when the file system is a local one, and what would _netdev do if someone did that? What does the option do when remounting a file system (mount -o remount)? In any case, once I am or was logged in as a user, /home can not be unmounted. How would suspending to RAM deal with that?
I can't think of any reasons this would be a problem. It certainly wouldn't prevent you from suspending, if anything you'd just encounter trouble when resuming.
Check your systemd config perhaps?
From the wiki here: https://wiki.archlinux.org/index.php/Power_management/Suspend_and_hibernate
I've looked at this article, and it does not mention NFS.
If the swap file is in /home/, systemd-logind will not be able to determine its size and thus will prevent hibernation. See systemd issue 15354 for a workaround.
Does this mean I need as much swap space as I have RAM on a physical disk? I'm using SSDs for everything but /home, and SSDs are way too expensive for more than the system and a small amount of swap space. I thought suspending to RAM means to suspend to RAM and _not_ to disk, so it won't need that much swap space. If it requires as much swap as RAM, the feature is totally useless.
participants (2)
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hw
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Justin Capella