Root Access

So... just like trying to guess when a toilet will be empty when you badly gotta go? ;p

lol

maaaaaaybe?

@djsmiley2k Can't task 4 be further broken down into smaller steps, or at least something on which you can get some kind of meaningful progress?

how far would you like to break it down?

'written 100340340360430730402023 bytes of 210210420543064383092843042804832048230482084208420842'

Enough such that the user can get meaningful updates without it getting silly :P

11:16 AM

:)

Figure that out, and you'll fix 99% of the UI problems of todays computers.

What's meaningful? My mum just wants to know it's working.

My dad wants to know it's writing bytes to the disk

Even if that's slapping a label that says "Step 4 usually takes around 5 hours- wait for 6 and then <do x>" on the indicator

@bertieb But you've just tried it on a 1950's computer!

Well see, this is where the conversation diverges

And all sortsa wild things get thrown in

On the average system at the average load, for the average dataset it takes a average time....

Which I'm all for, incidentally

In an ideal world there's a way to configure displayed verbosity on-the-fly in a way that is intuitive

11:18 AM

Lets go to a real world example

@rahuldottech's usb stick

he could hopefully (if ubuntu exposes it) find the process/log that's running

he could run a debugger against it to see what it's doing

and lower-level tasks are given a means (callback, IPC, log file, whatever) to communicate to the higher level (user)

but formatting a disk takes.... time, depending on size of disk

size of disk isn't known, until it's known.

for more fun

for a spinning rust disk - speed can depend on where it is

on any disk, it could be cache dependant as well

Size is known before you finish the format process though, except in cases where the disk lies (counterfeits), tho right?

Do SDcards/USB keys actually report size

11:21 AM

@djsmiley2k yup

i mean, upon query, at the start of the process?

ok

So it should really display X of Y Mb written, maybe

@bertieb so for some reason my live Ubuntu won't boot anymore

lsblk would expose that?

:(

@rahuldottech Erk

11:21 AM

s/Mb/Tb/Zb as appropriate

Separate media to install drive I take it?

lsblk gives you the UUID, i didn't think it did the size?

Pb then Zb

I think it did size

@bertieb yeah

@JourneymanGeek I figured you could just have a few 100000s of Tb for that :P

11:22 AM

I'll check in a bit

@rahuldottech Will it boot if you disconnect the drive to which you are trying to install?

in case of boot prio weirdness

> tim@vbox ~ $ sudo blkid
/dev/sda1: PARTLABEL="grub" PARTUUID="016eed92-5974-44e2-a678-5878d1d734c7"
/dev/sda2: UUID="D33E-AE92" TYPE="vfat" PARTLABEL="boot" PARTUUID="665ec9b6-110d-43a5-a92a-78a7eff7aba2"
/dev/sda3: UUID="62877869-94f2-46d3-a371-752cb8cb91aa" TYPE="swap" PARTLABEL="swap" PARTUUID="ee6e0ada-1bf0-42aa-96cb-225b605ebf53"
/dev/sda4: UUID="a521ad6c-800e-4667-b460-e744bb518374" TYPE="ext4" PARTLABEL="rootfs" PARTUUID="6198781a-784e-474a-b936-10df1a903ae2"

@bertieb it "boots" all right, but then ubuntu is stuck on the loading screen

The one with the dots

ie its trying to boot from the thing it tried to install to, which doesn't have a working install

OH GOD THE DOTS ARE BACK

:D

> -S, --size <size> overwrite device size

overwrite it? wut.

11:23 AM

I actually don't know what part of the boot process that is

@bertieb OH UBUNTU WHY U SO CLEVER.

But you can probably disable that and get it to tell you what it's actually doing

hit escape?

try another VT?

@rahuldottech ctrl+alt+2....7 give you anything?

add nosplash, remove quiet or similar

Or those options ^^

11:24 AM

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
loop0    7:0    0  88.5M  1 loop /snap/core/7270
loop1    7:1    0   8.4M  1 loop /snap/canonical-livepatch/77
loop2    7:2    0   8.4M  1 loop /snap/canonical-livepatch/81
loop4    7:4    0  88.7M  1 loop /snap/core/7396
sda      8:0    0 119.2G  0 disk
├─sda1   8:1    0   512M  0 part /boot/efi
└─sda2   8:2    0 118.8G  0 part /
sdb      8:16   0 931.5G  0 disk
└─sdb1   8:17   0 931.5G  0 part /mnt/1TB

@djsmiley2k different command

@JourneymanGeek that doesn't look like lsblk....

df -h?

I gotta go now, I'll get back to this in... five hours or so

mdadm -s?

why is everything here so complicated tho :(

@rahuldottech it's not

you're just not used to it.

11:25 AM

Turns out diagnosing faults is tricky

Ask @bwDraco how complicated driving was at first.

@djsmiley2k It definitely is. Compared to Windows.

He's not here :-\

@bertieb ._.

totally

cough improperly installed non contacting heatsink...

@rahuldottech If the medium's borked, Windows will crap out too

11:26 AM

you ran blkid

different command

@JourneymanGeek How did you manage to inhale an improperly installed heatsink?! Good thing you coughed it up!

;-P

(at least I amuse myself)

@bertieb lol

the heat sink wasn't even touching the processor ._.

yet it was securely attached.

@JourneymanGeek 0_o

Erf

I imagine it wasn't sinking a lot of heat

Not being in contact

@bertieb chkdsk found no errors

@bertieb processor hit 102c

11:28 AM

@rahuldottech Not quite the same thing, but then again I dunno how thorough chkdsk is

@JourneymanGeek Toasty

@JourneymanGeek If you drank tea you could boil some water with that!

Though you'd need something to conduct the heat to the water vessel

I considered a waterblock...

If only there was something that conducted heat from one place to another 🤔

got the copper cored version of coolermaster.com/catalog/coolers/standard-cooler/i50

which is actually pretty nice

Certainly looks the part

since I forgot and thought this was a lga 775 ....

well it has a plastic backplate, which was a definite selling point...

._.

XKCD

11:35 AM

After the test, she said that if she had a choice, she wouldn’t defend herself against drones using a tennis ball and racket, though she would absolutely pick them over other sports equipment. But, she added, "Drones don't bother me."

Oh Randall, you cheeky scamp

C:\Windows\system32>chkdsk /r /f g:
The type of the file system is exFAT.
Volume Serial Number is A6C2-AB65
Windows is verifying files and folders...
Windows is verifying file allocations...
File and folder verification is complete.
Windows is verifying free space...
  472858 free clusters processed.
Free space verification is complete.

Windows has scanned the file system and found no problems.
No further action is required.

  60526592 KB total disk space.
       256 KB in 2 files.
       256 KB in 2 indexes.

@bertieb ^

It checks each sector, so I think I'm fine here

I'd still write to the whole drive, verify, and check SMART afterwards

Or just retry without the hub if you're feeling ballsy

In all honesty, I'd probably do the latter in reality

Then if it failed, check the medium carefully

@bertieb you know how I'm feeling? exhausted

But in general I'd put my money on a medium crapping out ahead of ext4 driver / installer randomly messing up

@rahuldottech Yea, getting things set up can be frustrating

Whether OS, furniture, house, job, etc

Something you don't do often is hard to troubleshoot

Something made the IO fail tho

Across a few logical blocks too

Yeah actually

Looking closer at the log

The Kingston dropped off the radar

OS saw it as being disconnected and reattached

My money is on either the hub or the drive being screwy

Or something overheated

Or somesuch

But yeah, the drive dropping off while being written to probably didn't do file consistency much good

11:54 AM

yah

would also explain 'this storage is really slow yo!' warnings

nod

run badblocks on that badboy

The Best of the Stupids (1996)

Ah yes

That's the badger

Bob

1:06 PM

@rahuldottech /var/log/

most probably /var/log/syslog

@rahuldottech hubs, expensive or not, tend to not like extended transfer

they overheat and reset

(or sometimes stall until you manually reset them)

/me has been running various UASP SSDs off various hubs for years

also external HDDs - similar issue

I've learned to chunk my transfers

Burgi

2:22 PM

@Bob why 8?

@Bob iirc OS9 on macs used to say "About X minutes left..."

Bob

4:04 PM

@Burgi it can say it but there's no way to be certain

►

cc @bertieb

Canadian Luke

Wow, I can't believe I never heard of that movie!

5:19 PM

@bertieb Does your Q802 tend to heat up quite a bit even when idle?

@Bob stupid cc bertieb, huh, well.. I resemble that remark!

@rahuldottech I haven't noticed that, but then I rarely touch it

Or the Q802

ba-dum tiss

...

No but seriously

I set it an leave it

So I have no idea

Specifically, I'm talking about the bit to the left of the 2-track RCAs

@bertieb do you leave it on 24*7?

@rahuldottech Yes

Actually, I think I noticed that the wall-wart/transformer dealie was warm

Lemme check

5:23 PM

@bertieb Huh. I want to do that, but dunno if that's good for the components.

Hmm, the Q802 is warmish

Dunno

I don't recall the manual saying anywhere specifically not to

@bertieb me neither

5:38 PM

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