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NixOS System Operations

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About system administration for running NixOS systems in production. Declaratively manage your operations. | Room recommendations: #networking:nixos.org148 Servers

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28 May 2024
@k900:0upti.meK900If you actually have a production system you have to attempt this on18:06:53
@k900:0upti.meK900You have a MUCH bigger problem18:06:57
@k900:0upti.meK900 btrfs convert is something you do as a joke 18:07:15
@k900:0upti.meK900Not something you do to systems you care about18:07:24
@netpleb:matrix.org@netpleb:matrix.org
In reply to @k900:0upti.me
If you actually have a production system you have to attempt this on
Sorry, I should have clarified. It is "in production" but even the production instance is just mostly for education purposes. If I mess it up I will only be mad at myself (and nobody else will be mad at me).
18:08:46
@k900:0upti.meK900What I'm saying is, this is not a thing you should be practicing18:09:01
@k900:0upti.meK900If anything, the thing you should be practicing is never getting into a situation where you need to do this18:09:18
@netpleb:matrix.org@netpleb:matrix.org
In reply to @k900:0upti.me
What I'm saying is, this is not a thing you should be practicing
Yeah, you are probably right. Maybe better for me to figure out how to more automate a reinstall which uses btrfs and disko instead.
18:10:05
@k900:0upti.meK900What you're saying right now is "I'm going to practice building a campfire while being attacked by 30-50 feral hogs"18:10:20
@k900:0upti.meK900Like18:10:24
@k900:0upti.meK900Your problem isn't the campfire18:10:27
@k900:0upti.meK900If you're in that situation18:10:32
@k900:0upti.meK900You can probably figure out a campfire if you get rid of the feral hogs18:10:47
@netpleb:matrix.org@netpleb:matrix.org
In reply to @k900:0upti.me
What you're saying right now is "I'm going to practice building a campfire while being attacked by 30-50 feral hogs"
ha, I almost did refer to it as "trial by fire" in my earlier description -- should have ;)
18:10:58
@netpleb:matrix.org@netpleb:matrix.org
In reply to @k900:0upti.me
What you're saying right now is "I'm going to practice building a campfire while being attacked by 30-50 feral hogs"
* ha, I almost did refer to it as "trial by fire" in my earlier description -- should have
18:11:23
@netpleb:matrix.org@netpleb:matrix.org
In reply to @rvdp:infosec.exchange
If you're comfortable with kexec'ing into an image in memory, then it's doable. If you've never done that before, then I'd make sure that you're able to get to the machine in case you mess up
do you have a good reference for how I might do the kexec'ing into an image in memory part? I am trying to understand how that is different than the "unmount root without reboot" link above. Will kexecing into an image possibly give me the full effect of as if I had booted into a live thumbdrive?
18:24:57
@netpleb:matrix.org@netpleb:matrix.org
In reply to @rvdp:infosec.exchange
If you're comfortable with kexec'ing into an image in memory, then it's doable. If you've never done that before, then I'd make sure that you're able to get to the machine in case you mess up
* do you have a good reference for how I might do the kexec'ing into an image in memory part? I am trying to understand how that is different than the "unmount root without reboot" link above. Will kexecing into an image possibly give me the full effect of as if I had booted into a live thumbdrive? (edit: found this but have not tried it)
18:49:09
29 May 2024
@raitobezarius:matrix.orgraitobezarius changed their display name from raitobezarius to raitobezarius (DECT: 7248).17:10:12
31 May 2024
@birhaman:pub.solar@birhaman:pub.solar joined the room.16:30:12
3 Jun 2024
@amigdal:matrix.mit.eduArthur joined the room.00:36:29
@sahilkm:matrix.orgSahil joined the room.19:54:30
@sahilkm:matrix.orgSahilI don't know if this is the right place to ask but my nixos home server keeps shutting down and I cannot find a cause via systemctl 19:54:56
@k900:0upti.meK900Is it an x86 server?19:55:09
@sahilkm:matrix.orgSahilyes19:55:19
@k900:0upti.meK900Do you have anything in /sys/fs/pstore?19:56:16
@sahilkm:matrix.orgSahilempty dir, let me know if theres anything that you might need19:58:04
@k900:0upti.meK900 Check lsmod | grep pstore 19:58:13
@sahilkm:matrix.orgSahil changed their display name from Sahil Mishra to Sahil.19:58:18
@k900:0upti.meK900If it's showing anything, you should have pstore set up19:58:18
@k900:0upti.meK900So any logs possible will be, well, logged19:58:25

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