It looks like I hit some ZFS feature that it's not supported by grub module.
How I found that? In grub, you can list files in zfs volumes by doing ``ls $drive/@/home`` etc. I could list ``ls $drive/@/nix`` or ``ls $drive/@/nix/var`` but not ``ls $drive/@/nix/store`` where I kept the kernels. I found some explanations about lot's of files and lot's of hardlinks (nix store had at that time more than 130G and probably triggered the feature). nix-collect-garbage -d didn't help. I solved the problem by using boot.loader.grub.copyKernels = true; Kernels were copied to the same volume but to /boot where there is smaller number of files and worked perfectly. 2017-01-23 16:44 GMT+00:00 Tomasz Czyż <[email protected]>: > > > 2017-01-23 16:15 GMT+00:00 Roger Qiu <[email protected]>: > >> Hey, >> >> Changing nixos generations won't affect the grub boot partition, that >> only changes which nixos kernel and initramfs image gets booted. >> > Because all boot options are not working one of my guesses is that in new > nix version, wrong config was generated when I did system update which > broke all options. > >> This looks like an error in the Grub partition. Maybe you recently >> updated it or changed it, or the partition got corrupted. >> > It's possible, I tried to boot from USB, do ``nixos-install > --no-root-passwd`` to reinstall the system, but I'm not sure how to force > grub/uefi partition recreation/reinstalling, any idea? Should I just format > it and will be recreated? > >> This is why other operating systems tend to make their /boot read-only... >> >> If you can't get into the OS, then you can try booting off a USB, and >> then edit the boot partition. Or run the uefi terminal app (but this one >> never worked for me). If you had cloned/raided boot partitions you can try >> changing the uefi image to boot from in your uefi settings (access it like >> BIOS). >> > I tried that, but I'm not sure what to change. I tried to reinstall grub > on EFI partition but I'm not sure how to do that, is regular grub-install > stuff way to go (I thought I had some issues with that and I tried > nixos-install after that). > >> Currently I have 2 uefi boot partitions cloned, but one failed so I've >> been booting off the other one. >> > Nice one, I think I'll try to do something like that. > > Thanks Roger. > >> Thanks, >> Roger >> On 23/01/2017 10:48 PM, "Tomasz Czyż" <to <[email protected]> >> > > >> [email protected] <[email protected]>> wrote: >> >>> Hello, >>> >>> recently my grub said this to me after I restarted computer: >>> >>> Error: external pointer tables not supported >>> Error: you need to load the kernel first. >>> >>> Every option I select with nix (also past generations) shows me this >>> message. >>> >>> I updated the system to 17.03pre99792.c311871 on 2016-12-23 and >>> restarted it before multiple times (and worked). I don't remember if I did >>> other updates, but this is what's grub menu shows me. >>> >>> My disk layout is: EFI boot partition for grub, next partition is >>> encrypted luks volume and ZFS on top of it. >>> >>> This setup worked for me for 1.5 year now without any issue. >>> >>> Anybody is aware of any changes to grub/zfs recently or had same issue? >>> Any suggestions how I can recover from it or what can be wrong? >>> >>> Tom >>> >>> >>> >>> _______________________________________________ >>> nix-dev mailing list >>> [email protected] >>> http://lists.science.uu.nl/mailman/listinfo/nix-dev >>> >>> > > > -- > Tomasz Czyż > -- Tomasz Czyż
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