Ask Ubuntu General Room

Kaz Wolfe

00:11

and that is broken

Nathan Osman

@TheWanderer I hope that gets some action.

Kaz Wolfe

damnit, fakeraid it is ;-;

TheWanderer

kek

Kaz Wolfe

this would be so much simpler if i just had a 1tb ssd ;-;

TheWanderer

only $300

Kaz Wolfe

00:15

that is going to have to wait a while

TheWanderer

only $300

Kaz Wolfe

glad you have $300 to throw around

TheWanderer

I don't

Kaz Wolfe

amazon.com/dp/B01LXS4TY6

you lied

TheWanderer

oh M.2 o_O

amazon.com/Crucial-MX300-Internal-Solid-State/dp/B01L80DH1Y

$290

Nathan Osman

00:23

@KazWolfe $40 import duties if I buy that.

Not to mention currency conversion.

In total, close to $500.

So... yeah.

TheWanderer

:D

Kaz Wolfe

and yep

i officially hate installing linux on this machine

is the ubuntu installer just not capable of dealing with soft raid?

Nathan Osman

00:46

Never used RAID, unfortunately.

TheWanderer

@KazWolfe maybe it would be easier with Arch

Ubuntu Questions on U&L

02:30

0

Q: Ubuntu Server 16.04.3LTS Squashfs as root from Grub

I'm currently trying to setup an x86 64bit system to use a Squashfs as its root mountpoint, but i'm being met with many issues. Currently I am using 4.4.0-89 kernel compiled with Squashfs. I am looking to do this on a hard disk, but just for learning and testing sake, I am currently trying to do ...

Nathan Osman

03:36

Tweet of the day:

SCREAMING. A+ troll h/t @EvanSparks via #equifaxbreach hearing https://www.banking.senate.gov/public/index.cfm/hearings?ID=B61BB78D-CF34-4D54-B7F2-F7F982D77D6F https://t.co/3Hawi3RmGh

Tweeted by senatorshoshana on October 4, 2017 at 2:39 PM

Ubuntu Questions on U&L

03:53

0

Q: Replace a directory with all other directory recursively

I have a folder structure like this Admin /a/b/images /b/b/images /c/b/images /d/b/images and so on Now i want to copy all the images from /a/a/images/ and replace with all other folder under b,c,d and so on. I am able to copy the single file but not whole directory. Any idea?

linux ubuntu directory recursive

Nathan Osman

04:50

Looks like I'm going to learn Swift.

Kaz Wolfe

05:43

halp pls

0

Q: Plymouth Bootloader not intercepting keyboard input?

I recently installed the NVIDIA drivers for my computer's GTX 1080. After doing this, the Plymouth boot animation I am using fails to intercept passwords correctly. Instead of Plymouth getting the password, it just gets written to the side of the screen as seen in the above image. Pressing ENT...

boot nvidia plymouth

Avery

14:36

@KazWolfe WRONG

Installing arch took me 8 hours.

and like, a day for the stuff I use

terdon

14:47

8 hours!?

Installing only takes a few minutes. Now, setting everything up as you like it is another matter :)

Avery

Well

Seth

Installing Arch never takes "a few minutes" :P

Avery

3 hours was trying to modify hard drive as I wanted to, not really a part of installation

so 5 hours.

I spent first 2.5 trying to get installer to work without ethernet though

IT WORKED BEFORE I SWEAR

Now it requires ethernet on boot so that it can fetch keyring and after that you can switch to wifi apparently

I just used my phone to do ethernet through usb

TheWanderer

cheater

terdon

15:05

@Seth In my experience, it's the fastest installation process of any distro I've tried. And by far. that said, it's true that after installation you also need to add all sorts of packages if you're installing a regular "personal" machine. But still, the installation is blindingly fast. Configuration is what takes time.

@Avery Yes, it should. I've always installed ("always" meaning, um, 5 times?) over wifi.

Seth

@terdon um.. arch has no installer, so I don't see how that's possible.

terdon

@Seth What do you mean? You just need to run the commands. If anything the installer would make it slower (all that clicking and menus) not faster.

Easier, yes, but not faster.

Seth

Considering you can just click next next next in Ubuntu, input a username and password, and then you're done.

terdon

And then it needs to download several gigabytes of stuff which takes ages. Especially on slow connections.

The basic steps described here really don't take that long.

Debian's or Ubuntu's installer is much easier to use, but it isn't faster.

Seth

err, no. The default downloads nothing, because there's no network :P

terdon

15:10

Setting up the network is the first thing you do.

Seth

but yes, if you're considering all that it has to install, sure, it will take longer. But they're hardly comparable IMO

@terdon I usually skip that step. You don't have to. Just click next.

terdon

No, they're not comparable. Agreed. Completely different approach and mentality.

@Seth Sorry, I thought you meant Arch not Ubuntu.

Seth

Oh

terdon

Also, last time I installed Ubuntu must have been circa 2008 or so. Excepting the odd VM here and there. I've installed various Mints since then though and the installer is basically the same. But only Arch the past couple of years so I may well be way out of date.

Seth

eh, I think you were thinking overall time (which isn't comparable) and I was thinking ease of installation.

Nathan Osman

15:16

Morning.

terdon

Oh sure. Ubuntu's is easier. Well, easier for newbies. Since I document everything I run though, reinstalling my Arch would be ridiculously simple: just rerun commands. That's the drawback of GUIs, you can't automate stuff.

So it would probably be easier for me to install/reinstall n Arch system on the same hardware than any Debian derivative.

Seth

definitely

Avery

15:30

I change crucial stuff everytime I reinstall arch so

like

last reinstall, I switched to lvm

next one I plan to add fde

they're just adding complexity

Seth

15:44

I should switch to lvm..

Nathan Osman

I switched away from LVM, lol.

Avery

@NathanOsman why

Nathan Osman

Mostly convenience - I was getting tired of constantly resizing logical volumes.

Yes, I understand the risk of using a single partition for /.

Avery

what's the risk

Nathan Osman

16:00

It becomes full :P

Ubuntu Questions on U&L

0

Q: Ubuntu: Not able to relate free -lh output with top command ouput

I am checking my ram usage using free -lh command and it shows me below results. total used free shared buffers cached Mem: 62G 29G 33G 278M 335M 19G Low: 62G 29G 33G High: 0B ...

ubuntu performance top ram

Nathan Osman

If you keep things separate, having /home fill up won't affect writing to /var.

But if the entire filesystem is all on a single partition, then... well...

Not much you can do if /home fills up.

Avery

well

I mean sure but resizing etc is also pain

Nathan Osman

That was my point :D

Avery

well

I uh

I have single partition for /

and I use lvm

Nathan Osman

16:07

Oh.

What's the advantage of that?

terdon

@NathanOsman Why not have one partition for / and another for /home? That's my usual setup

Nathan Osman

That's not a bad idea, but I'd be constantly resizing them...

Sometimes I need to throw a ton of stuff in /var.

Other times I need room in /home for my VMs...

Avery

@NathanOsman it's cool

Nathan Osman

Well, it certainly is cool if you want to add another disk later.

Avery

yeah I plan to do that

Nathan Osman

16:12

Oh, and I forgot one other really cool thing you can do.

Snapshots.

I have used that before in the past.

It does come in handy.

"Hey, I should try installing <bleeding edge package> and see how well it works."

Avery

oh yes

snapshots are good

terdon

@NathanOsman Um. Symlinks?

Nathan Osman

@terdon chroots for sbuild, etc.

terdon

Ah

Nathan Osman

And Docker.

Lots and lots of Docker.

terdon

16:18

I generally have / at ~30 or 40G and everything else is given to /home

I then symlink if and when needed.

Nathan Osman

Ah.

terdon

 $ df -h
Filesystem      Size  Used Avail Use% Mounted on
dev              16G     0   16G   0% /dev
run              16G  1.7M   16G   1% /run
/dev/sda5        46G   34G   11G  77% /
tmpfs            16G  731M   15G   5% /dev/shm
tmpfs            16G     0   16G   0% /sys/fs/cgroup
tmpfs            16G   26M   16G   1% /tmp
/dev/sda6       328G  156G  156G  50% /home
tmpfs           3.2G   24K  3.2G   1% /run/user/120
tmpfs           3.2G   48K  3.2G   1% /run/user/1000

Nathan Osman

$ df -h
Filesystem            Size  Used Avail Use% Mounted on
dev                   7.9G     0  7.9G   0% /dev
run                   7.9G  988K  7.9G   1% /run
/dev/sda1             146G  109G   30G  79% /
tmpfs                 7.9G   70M  7.8G   1% /dev/shm
tmpfs                 7.9G     0  7.9G   0% /sys/fs/cgroup
tmpfs                 7.9G  1.1M  7.9G   1% /tmp
/dev/sdb5             1.1T  312G  692G  32% /mnt/nathan/extended
tmpfs                 1.6G   12K  1.6G   1% /run/user/1000
//10.10.0.111/Nathan  1.9T 1017G  835G  55% /mnt/nathan/WD2TB/Nathan

terdon

Wow. I never have /home on the / partition. It makes it so much more complicated to reinstall.

Nathan Osman

I have a 2TB drive (/dev/sdb) and a 2TB NAS so I'm not short of space, in general.

@terdon It's not quite what it looks like.

~/Downloads, ~/Documents, ~/Pictures, etc. are all symlinks to /mnt/nathan/extended/<whatever>.

So in reality, I don't have much in /home either :P

The downside is that /dev/sdb is spinning rust.

terdon

16:23

That's a waste of a perfectly good terabyte!

Nathan Osman

So it's slower than the other parts of the filesystem on the SSD.

Steam is on the SSD though :P

As is my current set of virtual machines.

terdon

$ df -h /
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda5        46G   24G   20G  55% /

That's better. Hadn't cleaned out my package cache in a while. It was 13G!

Nathan Osman

I'm not sure why it keeps old versions in the cache...

Android Dev

appears randomly

asks Nathan if he's rendering anything on the Mac Mini atm

disappears

Nathan Osman

Nope, nothing ATM.

Blender is broken on Arch on this particular machine.

I have yet to figure out how or why.

TheWanderer

18:19

mobile.twitter.com/vladsavov/status/915752257492258816/photo/1

Ok that's ridiculous

TheWanderer

19:07

that's pretty pretentious, ACT

their hold music is classical orchestra

TheWanderer

20:21

does anyone know what a circuit schematic is called?

Nathan Osman

I just call it a schematic.

Maybe "electrical wiring diagram"?

I dunno.

TheWanderer

I'm trying to find one for the LG V20

Eliah Kagan

Wikipedia also lists the synonyms "circuit diagram," "electrical diagram," "elementary diagram," and "electronic schematic."

Circuit diagram

A circuit diagram (electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations. The presentation of the interconnections between circuit components in the schematic diagram does not necessarily correspond to the physical arrangements in the finished device. Unlike a block diagram or layout diagram, a circuit diagram shows the actual electrical connections...

TheWanderer

I think LG might have just not released it :/

Eliah Kagan

Do we have a text processing question about performing a base conversion on a single column of input while leaving the others unchanged?

Ubuntu Questions on U&L

21:09

0

Q: Issues exporting X11 display while using SSH from Ubuntu for Windows

I am using the native Ubuntu terminal in Windows 10, and am trying to export display while using SSH to connect to a remote server. I have XMing installed on the Windows PC, which works on the local Ubuntu after using "export DISPLAY=:0". However when I ssh and try to open any display it, I get t...

ubuntu ssh x11 windows-subsystem-for-linux

Ubuntu Questions on U&L

22:49

0

Q: Disable and enable ext4 journaling ?

If I disable the journaling function of an EXT4-filesystem using the command tune2fs -O ^has_journal /dev/sda and enable it after the next start, will the data saved on the harddisk remain unaffected or are they lost ? (Ubuntu 16.04 LTS)

ubuntu ext4 journaling

TheWanderer

23:24

reddit.com/r/lgv20/comments/74jo69/oreo_on_the_v20

kek

Ubuntu Questions on U&L

23:48

0

Q: How to append filename prefix/suffix to sed output?

I have a large (~300) set of .csv files, each of which are ~200k lines long, with a regular filename pattern: outfile_n000.csv outfile_n001.csv outfile_n002.csv . . . outfile_nXXX.csv I need to extract a range of lines (100013-200013) from each file, and save that extracted region to a new .cs...

bash ubuntu sed scripting

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Ask Ubuntu General Room