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xzzy posted:journalctl is slow and annoying, but dumping poo poo into /var/log wasn't great either. No one has ever enjoyed the routine of holding page up/page down looking for timestamps or grepping out the irrelevant crap. A Raspberry Pi with a couple of 2.5" 5400RPM disks in a zpool is perfect for this.
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Jan 30, 2021 05:14
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Gotta say, I'm really impressed with Fedora. Its so advanced it's reaching into the future and pulling out future kernel panic or dumps and giving me them now. Much more advanced than Arch. 
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Jan 31, 2021 15:46
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Nitrousoxide posted:Gotta say, I'm really impressed with Fedora. 
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Jan 31, 2021 17:39
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That's actually pretty funny the UI accounts for that.
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Jan 31, 2021 20:27
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Mr. Crow posted:That's actually pretty funny the UI accounts for that. Reminded me of https://m.imgur.com/gallery/JADYkVb
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Jan 31, 2021 20:51
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Isn't there a library that everyone uses that turns a unix timestamp into a human friendly string like that? I know the date command for example is pretty flexible turning stings into timestamps. My guess is the timestamp is in UTC and the window manager formatting for UTC-4, or vice versa.
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Jan 31, 2021 20:57
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ctime API does that, for casual use look at https://www.epochconverter.com/
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Jan 31, 2021 22:30
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I was just reading this thread the other day when everyone was discussing the arch linux installation guide and how it was so easy to miss the networking page and I made a note to make sure I remembered to check that out when I tried to install arch but I still managed to screw it up by not installing a dhcp client. I guess the mistake is on me for not reading the page correctly. I also skipped the network manager because for some reason i figured that was for wireless connections and I wont need that for ethernet.... At least I am learning lots
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Feb 1, 2021 12:18
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xzzy posted:Isn't there a library that everyone uses that turns a unix timestamp into a human friendly string like that? I know the date command for example is pretty flexible turning stings into timestamps. 
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Feb 1, 2021 16:01
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BlankSystemDaemon posted:do like lilo (or me) and put epoch as timestamps in your irc client, that way you can learn how to read them This BSD user gimmick has gone too far
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Feb 2, 2021 00:50
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My custom built computer is going to need to use wifi soon instead of the ethernet it currently is using. Any recommendations? USB? Card? It's an over 10 year old ASUS m4a78 pro motherboard.
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Feb 2, 2021 03:53
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The Merkinman posted:My custom built computer is going to need to use wifi soon instead of the ethernet it currently is using. Any recommendations? USB? Card? It's an over 10 year old ASUS m4a78 pro motherboard. Do you have any open PCIe slots? ASUS makes some wireless AC and AX cards which are likely to be fairly painless. USB can work fine, too, but I think is more likely to give driver headaches. What distro are you running? Another way to get wireless connectivity would be to use a wireless access point that you plug into using ethernet. That avoids drivers and wireless config on the computer altogether, although they might not be quite as fast as a dedicated wireless solution. I have one of these wireless N TP-Link extenders for that purpose and it's been solid, although it's a little slow now compared to more recent models: https://www.officedepot.com/a/products/138871/TP-Link-N300-Wireless-Wi-Fi/.
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Feb 2, 2021 06:00
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The Merkinman posted:My custom built computer is going to need to use wifi soon instead of the ethernet it currently is using. Any recommendations? USB? Card? It's an over 10 year old ASUS m4a78 pro motherboard. I just bought this WiFi/Bluetooth card a week ago and it has had no issues with drivers with a modern kernel on Linux. https://www.amazon.com/dp/B0832MR4WB/ref=cm_sw_r_cp_apa_fabc_QFSKDNKHC2ATA8Y8DTZ9?_encoding=UTF8&psc=1 Obviously, if you're dealing with a really ancient computer running a really old kernel your results may vary.
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Feb 2, 2021 06:07
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I'm running Ubuntu 20.10, I thought I had posted that, but must have been an earlier draft. The kernel is 5.8.0-41-generic. I do have some PCIe slot(s) open as it looks like the only one being used is the blue(?) PCIe 2.0 x16(?) one for my video card. Maybe not necessary for this use case, but is it time I look into upgrading/replacing my tower?
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Feb 2, 2021 14:45
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I'm going to lose my mind, somehow I'm my VMs pressing tab twice (sometimes once) or enter to complete a command is killing my terminal and I can't troubleshoot it well... Because I can't type any loving commands. I've tried swapping to a VT and it just kills the session... Using KVM, is this some bizarre host QEMU bug? My host is fine. Any ideas how to start troubleshooting this? To clarify a bit, the keys in question work normally inside the VMs on any non-terminal application. Mr. Crow fucked around with this message at 19:13 on Feb 2, 2021 |
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Feb 2, 2021 18:20
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The Merkinman posted:I'm running Ubuntu 20.10, I thought I had posted that, but must have been an earlier draft. Seems like it’d be fine. Try out this bad boy: ASUS Dual Band 802.11AC Wireless-AC2100 PCI-e Bluetooth 5 Gigabit WiFi Adapter, 160MHz Support (PCE-AC58BT) https://smile.amazon.com/dp/B07P61CK87/ref=cm_sw_r_cp_api_glt_fabc_9RH0V0FE067H9TR0ZTRP EDIT: first one I posted wasn’t 802.11ac.
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Feb 2, 2021 18:52
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I recently switched from MacOS to Ubuntu, so I got real noob question here: When installing various programs, e.g snap or vim, what directory should I install them to besides the home directory? I don't want ~ to get too crowded. Should I cd into /usr/bin/ when installing little things off of github?
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Feb 2, 2021 21:39
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Make a git or github or git/github dir in your home directory. You can symlink executables to ~/bin. And things like vim will be properly packaged by your distro. Install them from the package manager or whatever the Applications gui is. (I'm not sure you were really saying you are trying to use vim from source but that is how i read it  )
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Feb 2, 2021 21:44
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Associate Christ
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Stuff in /usr (excluding /usr/local) is reserved for system packages so don't install them there, your package manager (apt) will install stuff there. Generally you can mirror /usr in /usr/local for locally installed things. /opt is another popular location for random installations. Use ~/.local/ (same structure as /usr) for stuff installed per-user. Snap is another package manager (albeit terrible) and it will just do the right thing, as far as it's concerned.
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Feb 2, 2021 21:47
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 thanks everyone
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Feb 2, 2021 22:53
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Mr. Crow posted:I'm going to lose my mind, somehow I'm my VMs pressing tab twice (sometimes once) or enter to complete a command is killing my terminal and I can't troubleshoot it well... Because I can't type any loving commands. I've tried swapping to a VT and it just kills the session... Think I've narrowed it down to bash crashing, I can use sh fine. When I get bash to crash, sh seems to think it exited cleanly with $? == 0... I've never needed to debug bash itself, any clues?
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Feb 2, 2021 22:55
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Mr. Crow posted:Think I've narrowed it down to bash crashing, I can use sh fine. When I get bash to crash, sh seems to think it exited cleanly with $? == 0... I've never needed to debug bash itself, any clues? I don’t know, and have no business even answering, but are you using a standard US keyboard? Maybe something amiss in localization?
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Feb 2, 2021 23:15
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My Arch is a little messed up, or maybe a lot. I was trying to view an .Img file inside of an img I renamed to iso, anyway I'm the in the emergency shell, probably in the boot partition. I think the UUID and such and so forth was changed, maybe. I'm going to have to figure this out.
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Feb 6, 2021 22:04
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I fixed it thank god, I think it tried to boot the Img file I was playing with, but upon 2nd boot it self corrected.
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Feb 6, 2021 22:14
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Cheese Thief posted:I fixed it thank god, I think it tried to boot the Img file I was playing with, but upon 2nd boot it self corrected. this is one of the things I love about linux. this poo poo shouldn't be possible, and even if you somehow manage to make it possible it shouldn't just fix itself mysteriously the jank is a selling point
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Feb 6, 2021 23:04
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I seem to remember fixing some problem just by chain rebooting once. no clue why, but it just got a little farther with every reboot until it just magically worked after like 6-7 boots
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Feb 6, 2021 23:05
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I would guess that the loader in question has an counter somewhere which attempts to switch to another bootblock if one fails too often, so it's not exactly magic. FreeBSDs standard loader can do this (including for zfs with boot environments via zfsbootcfg(8)). There are plans for making it such that the bootblock reservations in the OpenZFS spec will be used this way too (including support for falling back to known good boot environment like FreeBSD can). Also, here's a bit of useless trivia (well, it's useless as Cheese Thief already figured out their problem): You can map either img or iso files to a device via mdconfig(8) on all Unix-likes (yes, even in /rescue). The first is an image of a disk the way it's partitioned if you dd it to out.img and can accessed with mount(8), while the second is a ISO-9660 filesystem meant to be accessed with mount_cd9660(8).
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Feb 6, 2021 23:42
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As easy as it can be to break poo poo, most problems are trivial and can be solved with a little time with chroot.
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Feb 6, 2021 23:46
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BlankSystemDaemon posted:I would guess that the loader in question has an counter somewhere which attempts to switch to another bootblock if one fails too often, so it's not exactly magic. My situation was a little weirder, and was actually solaris iirc. Turned out there was something wonky in the network stack that was causing NFS mounts to fail, and whoever set them up had set them all to be hard mounts. Every time we rebooted it would manage to mount a couple more before one failed, and we had to try again. I was actually glad I had run into another box that had like 4 years uptime, had had like 400 hard NFS mounts added to fstab, then the actual machines hosting the mounts shut down and removed. I was able to spot what was happening pretty quick
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Feb 7, 2021 01:02
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Fuckin nfs mounts man, users can't get enough of that poo poo. gently caress yeah I want all my storage available everywhere!! I got a customer with so many crossmounts that they aren't even in the fstab, with a full network reboot nothing can come up in a predictable state. Instead they have a cron job that runs 15 minutes after boot to mount them manually. NFS on boot is better these days, linux handles backgrounding them a lot better than it once did but this "design" predates that and they're resistant to change because it might break something.
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Feb 7, 2021 01:10
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xzzy posted:Fuckin nfs mounts man, users can't get enough of that poo poo. gently caress yeah I want all my storage available everywhere!! I love NFS, but if I ever catch anyone using the HARD option in an fstab again violence may happen
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Feb 7, 2021 02:53
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I'm really appreciating how easy it is to create a bootable linux distro USB stick in any OS now. I just had the unfortunate experience of trying to create a windows bootable USB without any windows machines. It is astonishingly hard to create a Windows installer USB stick without access to Windows. I had to install Linux, install a virtual machine manager, then install Windows in a virtual machine, plug my USB stick into my computer, pass the USB device through the virtual machine into windows, and then use the windows creation kit to make a bootable USB for a Windows install. Just writing the iso to the USB stick does not allow it to actually install Windows because the windows installer expects several partitions with very discrete and unique file structures (it needs fat32 for one partition, but also has files bigger than fat32 can handle so you have to split them up) that are for some reason not written into the ISO and no boot sector is included in the iso so you would have to manually create it if you're not using the windows tool.
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Feb 7, 2021 03:47
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So, this is a noob question... I'd like to get an external USB hard drive and hook it up to my laptop running Linux (CentOs8 currently, but I'm going to switch it to Ubuntu or something when I get time). I'd like to then share that USB hard drive on my network with Windows clients (using Samba I assume) AND via NFS clients (other linux machines, netbooting raspberry pis, vm backups, etc). What disk filesystem should I use? Can all of the above be accomplished with one FS? Or am I going to HAVE to make two partitions and format them differently? Say EXT4 and NTFS or something? I'm used to sharing things in Windows... but really want to boot these raspberry pis and other VMs from the network... and I don't know the constraints and such.
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Feb 7, 2021 04:25
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If you are using an SMB share I don’t think it would matter. The host computer for the drive handles all the file system shenanigans. The other client computers don’t need to understand what the file system is for the drive there connecting to over the network.
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Feb 7, 2021 04:26
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Yeah you can use any filesystem for that. The clients don't care what the filesystem is.
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Feb 7, 2021 04:35
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Nitrousoxide posted:If you are using an SMB share I don’t think it would matter. The host computer for the drive handles all the file system shenanigans. The other client computers don’t need to understand what the file system is for the drive there connecting to over the network. Cool, thanks! So I can format the whole thing as ext4 or whatever and then share the whole drive out to: Windows machines using samba and... Linux machines using nfs? And it’ll all play nice? If so, that’s awesome
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Feb 7, 2021 04:35
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Yuppers. You can also use SMB or NFS alone for both clients.
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Feb 7, 2021 04:38
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namlosh posted:Cool, thanks! Yep. That’s done all the time with NAS’s which might be in ZFS or Ext4 and Windows can happily connect to them and read them despite having no native support for those file systems.
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Feb 7, 2021 04:41
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Nitrousoxide posted:Yep. That’s done all the time with NAS’s which might be in ZFS or Ext4 and Windows can happily connect to them and read them despite having no native support for those file systems. Now I feel dumb, lol. of course... thanks! xtal posted:Yuppers. You can also use SMB or NFS alone for both clients. Wait, am I missing something? Can windows machines talk to something via NFS? I see that Windows has "Service for NFS" but I had assumed that was sort of half-baked. Given this, what's the best move to share? SMB or NFS? or does it not functionally matter? Sorry for so many questions... I really appreciate the help.
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Feb 7, 2021 04:49
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I don't have experience with windows NFS so I could be wrong, but I think it's just fine. There are some functional differences between it and SMB as far as semantics for authentication. But they're mostly equivalent. (Compared to, for example, sshfs, which wouldn't work well for multiple clients.)
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Feb 7, 2021 04:58
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