Root Access

jiggunjer

11:00

"In addition to the standard PC disk partition scheme that uses a master boot record (MBR), UEFI also works with a new partitioning scheme called GUID Partition Table (GPT)"

so both

Bob

> The boot manager must also support booting from a short-form device path that starts with the first element being a hard drive media device path (see Table 86). The boot manager must use the GUID or signature and partition number in the hard drive device path to match it to a device in the system. If the drive supports the GPT partitioning scheme the GUID in the hard drive media device path is compared with the UniquePartitionGuid field of the GUID Partition Entry (see Table 18). If the drive supports the PC-AT MBR scheme the signature in the hard drive media device path is compared with …

That's from UEFI 2.7 § 3.1.2 Load Option Processing

> If an MBR partition has an OSType field of 0xEF (i.e., UEFI System Partition), then the firmware must add the UEFI System Partition GUID to the handle for the MBR partition using InstallProtocolInterface().

djsmiley2k

@Burgi gotg?

Bob

5.2.1 Legacy Master Boot Record (MBR)

Burgi

@djsmiley2k guardians of the galaxy

Bob

> A legacy MBR may be located at LBA 0 (i.e., the first logical block) of the disk if it is not using the GPT disk layout (i.e., if it is using the MBR disk layout).

@jiggunjer It looks like MBR support is required

jiggunjer

11:04

So it has to have a table.

Bob

10.3.6.1 Hard Drive

> EFI supports MBR and GPT partitioning formats.

> The Hard Drive Media Device Path is used to represent a partition on a hard drive. Each partition has at least Hard Drive Device Path node, each describing an entry in a partition table.

djsmiley2k

@Burgi nope, cannot find.

jiggunjer

it actually wouldn't surprise me now if some uefi systems could boot from a superfloppy fat32, but it just isn't required in the standard.

Bob

> Partitions are addressed in EFI starting at LBA zero. A partition number of zero can be used to represent the raw hard drive or a raw extended partition.

Hmmmm.

@jiggunjer Feels like a superfloppy could legally be "a partition number of zero"

jiggunjer

by definition a partition is defined in a partition table.

else it is a single volume drive

Bob

11:09

@jiggunjer Yes, but "a partition number of zero" can be the "raw hard drive", i.e. the entire drive

I think that's what Windows does, actually

yea, it does

@jiggunjer In Windows \\?\GLOBALROOT\Device\Harddisk0\Partition0 refers to the entire drive;\\?\GLOBALROOT\Device\Harddisk0\Partition1 starts the actual partitions

Burgi

best i could do:

Bob

i.e. Partition0 is equivalent to Linux sda while Partition1 is like sda1

Burgi

Bob

aha! @jiggunjer 13.3.2 Partition Discovery, yup:

> This specification requires the firmware to be able to parse the legacy master boot record(MBR) (see Section 5.2.1), GUID Partition Table (GPT)(see Section 5.3.1), and El Torito (see Section 13.3.2.1) logical device volumes.

jiggunjer

does a superfloppy count as el torito

I thought that was for iso 19960 or whatever optical media filesystem

Bob

11:23

@jiggunjer no, I was just pointing out that MBR support is required :P

I swear I've had this conversation before with someone else

@jiggunjer anyway, for removable media, it does not say any partition scheme is required

> 13.3.4.1 Removable Media

> Removable media may contain a standard FAT12, FAT16, or FAT32 file system.

> 13.3.4.2 Diskette

> EFI bootable diskettes follow the standard formatting conventions used on personal computers. The diskette contains only a single partition that complies to the EFI file system type.

> Diskettes include the legacy 3.5-inch diskette drives as well as the newer larger capacity removable media drives such as an Iomega* Zip*, Fujitsu MO, or MKE LS-120/SuperDisk*.

> 13.3.4.3 Hard Drive

> Hard drives may contain multiple partitions as defined in Section 13.3.2 on partition discovery. Any partition on the hard drive may contain a file system that the EFI firmware recognizes.

It only mentions partitions for hard drives

hm...

> 13.3.1.3 Directory Structure

> For removable media devices there must be only one UEFI-compliant system partition, and that partition must contain an UEFI-defined directory in the root directory.

idk then

djsmiley2k

it's Raining Bees!

@JourneymanGeek at the bakery?

Bob

> A System Partition is a partition in the conventional sense of a partition on a legacy system. For a hard disk, a partition is a contiguous grouping of sectors on the disk where the starting sector and size are defined by the Master Boot Record (MBR), which resides on LBA 0 (i.e., the first sector of the hard disk) (see Section 5.2), or the GUID Partition Table (GPT), which resides on logical block 1 (the second sector of the hard disk) (see Section 5.3.1). For a diskette (floppy) drive, a partition is defined to be the entire media.

Hmph.

@jiggunjer So. Is your flash drive a "hard disk" or a "diskette drive"? :D

Journeyman Geek

@djsmiley2k no. Moved further in.

Bob

I suspect in practice most implementations will just try all of 'em.

But yea having a (GPT|MBR) partition table is safer than not having one these days.

jiggunjer

it's so stupid the definition of a partition changes depending on the physical shape of your storage.

storage and partitions should be purely abstract concepts.

what if you have a virtual drive consisting of flash, magnetic disks and floppies. Define partition plz UEFI.

my drive identifies as an attack helicopter

Burgi

11:46

nationalburgerday.co.uk

djsmiley2k

wtf is this @Burgi -- NO RESULTS

££££

Hmmm cozy club isn't one £

That REDACTED Guy

12:13

I have seven active tabs on this browser. Six of them taking around 12 MB of RAM each.

And then there's facebook, this behemoth, this... monstrosity, taking 2.5GB

Facebook is using nearly half of all my RAM!

djsmiley2k

yeah

it's bonkers, and I don't understand why it's 1. allowed to, 2. need sto

lets say I'm scrolling down my feed and there's a video

ok you might of cached it, but after I 've watched it, get rid

That REDACTED Guy

"Oh bt what if they want to scroll back to the top". I bet less than 0.000001% do that

djsmiley2k

i cick the F icon at hte top and reload the page.

I think the browsers should take control and just allow limits to be set on sites

Bob

12:49

@djsmiley2k and... what happens if it hits the limit?

user226528

13:14

@Burgi What about it?

djsmiley2k

@Bob BOOM!

Burgi

13:31

@FleetCommand as a former wikipedia editor i thought you might like the analysis

NotAdmin Dave

14:26

Chrome def needs that.. ulimit settings.

I'd vouch for that.

TOTALLY

oh also hi guys, morning.

djsmiley2k

14:39

@Bob it feels like a lot of the memory usage is just unneeded caching

because 'gotta go fast'

Bob

@djsmiley2k more likely a leak. again, what would you expect to happen?

should the page just crash?

there's not really any nice way to deal wth OOM

btw, forcibly crashing pages is extremely poor ux

(see also: earlier ipad models would kill any app that took >50% CPU for >60s... good luck doing anything mildly heavy)

djsmiley2k

yah I know it's a painful problem

but it feels like if we don't crash the page, what devs are gonna care about their pages eating up gbs upon gbs of ram?

I wish I knew how to anaylise exactly why loading a page would use X memory

Bob

@djsmiley2k heap profiler in devtools

djsmiley2k

k, lookin at that now.

Bob

ah, they moved it under its own "Memory" tab

djsmiley2k

14:44

Ok I have no clue what I'm looking at :D

ah ok

I mean, this page, under summary, shows around 13Mb

Task Manager, in chrome (i.e. chromes native task manager) shows 109,732K.... 109Mb?

Bob

I'd say you could send me the snapshot, but there's probably private data in there

djsmiley2k

@Bob give me a secure way to give it to you?

Bob

@djsmiley2k facebook is 13 MB?

djsmiley2k

No no, this page, chat.stackexchange.com/rooms/118/root-access

Bob

ah

nah, this page is much lighter

djsmiley2k

14:49

imgur.com/a/oDxWo

yup

but says 119Mb~

Bob

typical chrome :P

probably some amount taken up by DOM, renderer, etc

djsmiley2k

but this is my point

As a user, i seem to have no control, nor the ability to know what is going on

Bob

@djsmiley2k use firefox. about:memory :D

in all seriousness, overhead aside, a heap snapshot should show you where most of the facebook mem usage is going

djsmiley2k

[This will crash chrome](chrome://crash/ "don't click me!")

o_O

Bob

@djsmiley2k take a snapshot of facebook when it gets big

djsmiley2k

14:53

have to wait til I'm home

but the point statds

Bob

eh, typical chrome overhead

@djsmiley2k reopen chat and see how big it is

also, extensions

djsmiley2k

i refreshed it...

do i need to relaunch the entire chrome?

Bob

idk

or try one without extensions

just in case

72

Q: How to open Google Chrome with extensions disabled / turned off?

Google Chrome is crashing when I try to open it. I'm assuming that it's probably a bad extension that's causing the problem. How can I start up Chrome with all extensions disabled / turned off?

djsmiley2k

15:18

will play when at home.

Oliver Salzburg

For some promotional shots, I just tried to get Chrome to stop auto-completing anything

That seems like an impossible task

Even in Incognito, with Auto-Fill and Auto-Complete disabled in your profile, it will suggest completions

Bob

@OliverSalzburg new profile!

Oliver Salzburg

@Bob Don't get me started... :P

djsmiley2k

don't click in boxes

Oliver Salzburg

@djsmiley2k That's tough when you want to record a sign-up process

djsmiley2k

15:30

I'm presuming you tried: Under "Passwords and forms," uncheck "Enable Autofill to fill out web forms in a single click.

Oliver Salzburg

@djsmiley2k Yes

djsmiley2k

:/

Sorry, can't help more. busy ;D

I spotted a msitake in the firewall rules at work \o/

it may explain why nothing was working the way it should of....

(well, not nothing but some things)

Oliver Salzburg

I already got through it anyway. We decided to fake it in Photoshop

djsmiley2k

:D

Avery

yeah using a new profile would work

Circus Cat

15:51

> Sony has added the Xperia XZ Premium and Xperia XZs to its Open Device project, allowing you to build and flash your own versions of Android™ N onto those devices.

Interesting

Oliver Salzburg

@Avery However, it introduced new issues that were causing too much friction at the time

As in, the new profiles are English, as my OS is in English. But I needed German. Which is annoying to adjust and even impossible in a Guest profile

Burgi

wtf....

i was looking at prices for parking at liverpool airport when i go pick up my GF on monday. its about £7 for an hour, but they say "pre-book for up to 70% off!"

so i went and looked at that.... its £70!!!!!!

why woul anyone pre-book if its 10x more expensive?

Oliver Salzburg

16:27

@Burgi Maybe that is per day

Burgi

maybe

i've found a free car park 5 mins walk from the terminal

barlop

17:18

@Bob even with these options? i.imgur.com/AC3LBMW.png

ignoring what i checked/unchecked in that image.. the options of

"add fixes for old bioses"

and possibly also "use rufus mbr"

Anyhow I tried installing windows 10 from MCT.. to USB.. I started the installation, came back home and found the laptop had shut down or gone into sleep mode

and when I try turning it on it just takes ages to load windows 10 and never loads

It just shows the 4 blue squares that make up the windows 10 loading screen and the white dots that circle below it

djsmiley2k

18:02

£7 an hour is what i'e seen some 'normal' car parks charge :;

@Burgi prebook, have your car stored 'safely' in a field for a week or two while you're away

CausingUnderflowsEverywhere

18:49

is there a way to log which processes send COM/DCOM requests that result in svchost.exe -k DcomLaunch launching a child process on their behalf?

I keep getting IE randomly opened with an attempt to load an ad website ever since I played agar.io and my screen went black after accidently clicking on their "buy coins ad" that keeps popping up over the play again button. The IE is started by this svchost process which only has DCOM, plug and play, and power.

nope virus scans didnt work I tried 6 different engines

I tried using google, it didnt work :(

I tried disabling dcom server launcher to make the problem go away ;) and windows wouldnt boot up haha.

Hey Tom are you from europe? :)

Burgi

@djsmiley2k their website suggested otherwise but it appears so

Burgi

19:48

wtf is wrong with me?

i went to the shop for some bits, queued up, got distracted and walked out without paying

i ran back in immediately obviously

DavidPostill

@Burgi Oh dear :/

Burgi

super embarrassing and i probably can't go in there again for a month or so

i was thinking about getting my car washed this weekend and next thing i know i'm stood outside holding my bag of shopping looking at the car in a confused way

the woman at the counter was fine with it and was laughing at me

apparantly i mumbled something about the car wash and walked out

DavidPostill

@Burgi Don't normal people have their shopping in a basket and then put it into a bag after they have paid?

Burgi

@DavidPostill she'd filled my bag for life and handed it back to me full to give herself some room

DavidPostill

@Burgi hahahaha.

Burgi

19:55

i think we were both a little distracted

DavidPostill

@Burgi TWTASTTB :)

Burgi

@DavidPostill um...? That's What....?

DavidPostill

@Burgi ... the actress said to the bishop

Burgi

of course :)

DavidPostill

I think I might finally have a job

Burgi

19:58

wooohooo

being what?

DavidPostill

I'm arguing about the contract which has some stupid clause about "we require full flexibility as hours may be anywhere within operational hours for the ..." and they originally said "Fixed shift, 0800-1700 Monday to Friday"

Operational hours being 8am through 10pm

Burgi

is it in liverpool?

DavidPostill

@Burgi Call centre monkey in L'Pool

Burgi

@DavidPostill :(

at least its a start

tech support?

DavidPostill

Exactly. Not tech support. With my experience I can be a team leader/coach/trainer in 6 months ... or working somewhere else

And it's something on my CV

It's always easier to get a job when you have a job.

Burgi

20:06

agreed

DavidPostill

I will take it anyway but I hope they will agree to fix the contract ...

Burgi

is there public transport after 10pm, just in case?

DavidPostill

@Burgi Yes. Would get home very late though :/

Burgi

:(

DavidPostill

I will see what they say tomorrow in response to my email.

Ramhound

20:21

@LPChip - "but if they aren't the user will get an error claiming they miss a certain file, for example: vbvm50.dll (Visual Basic 5.0 runtime)" this would only be true if vbvm50.dll wasn't in the same directory as the executable itself.

Windows has a hierarchy of locations of where it will search for a file before it says "I can't find it" one of the last locations is the system32 directory.

@DavidPostill - I currently work a flex schedule. However, we still rotate people in order to "be on call" in case something happens. We don't have to do that but due to the nature of the job, not doing it isn't really an option, although we could technically decline to do so.

Sounds like my situation is different though :-)

DavidPostill

@Ramhound Yeah, call centers don't need agents to be on call in that sense ...

There is a big gap between "fixed hours" and "full flexibility"

Burgi

22:53

whats that mexican song?

sort of goes arrriba yabba mamba

google is failing me :(

also te new google assistant it terrible

might not be mexican but certainly latin america

i'll have to wait for my GF and hum it at her

and she'll say "omg, you mean <insert song name and artist here>. what is wrong with you for not knowing that?"

Journeyman Geek

23:18

La Bamba (song)

"La Bamba" (pronounced [la ˈβamba]) is a Mexican folk song, originally from the state of Veracruz, best known from a 1958 adaptation by Ritchie Valens, a top 40 hit in the U.S. charts and one of early rock and roll's best-known songs. Valens' version of "La Bamba" is ranked number 354 on Rolling Stone magazine′s list of the 500 Greatest Songs of All Time. It is the only song on the list sung in a language other than English. "La Bamba" has been covered by numerous artists, most notably by Los Lobos, whose version was the title track of the 1987 film La Bamba and reached No. 1 in the U.S. and UK...

Burgi

@JourneymanGeek thats it

i realise this probably makes me extremely racist

Journeyman Geek

Naw

I have the exact same issue when trying to remember say, the title of one of indica's songs

DavidPostill

@Burgi Are you sure you are not mixing up Speedy Gonzales (arriba) and the Flintstones (yabba dabba doo)?

Burgi

lol

@DavidPostill its just how it sounds to me

i remember seeing part of a stadium tour video and there was this tiny guy with a massive guitar and the crowd screamed constantly

i must have been about 6 or 7 and our neighbour had satellite tv so he could watch irish horse racing shrug

any way i remember eating crisps and having lemonade and just watching this one song

Bob

morn

Journeyman Geek

23:25

lol

Ben N

Hi!

Journeyman Geek

I remember "la babamba" and "ariba la lasa"

Bob

@JourneymanGeek Valokeilojen vampyyri? I have no idea where to even start pronouncing that

DavidPostill

And for @Burgi translated lyrics :) lyricstranslate.com/en/la-bamba-bamba.html-1

Burgi

@DavidPostill this will probably ruin it for me...

Journeyman Geek

23:27

@Bob AKA the minibus song ;p

@Bob or ihmisen lento...

or that other one I cannot begin to remember

Burgi

maybe i was younger than 6

Journeyman Geek

and their finnish stuff is a lot better than their english self-covers

Burgi

iirc we moved in 89

DavidPostill

> I'm not a sailor,
I'm not a sailor, I'm a captain.
I'm a captain, I'm a captain.

Journeyman Geek

I like how the other translation is totally different

Burgi

23:29

> blah-blah-blah la bamba Blah-blah-blah-blah la bamba AY AY AY AY AY AY AYYYYY.....AY AY AY AY AY AY AYYYYY
JESUS F. CHRIST! WTF! WHO GIVES A RAT'S PATOOT!

i mean who had sattelite tv in the 80s?

our neighbour was a nice irish guy but he lived in a semi-detached house in a "meh" suburb of a poor (at the time) northern city

i should ask my dad wtf was going on there

its only now that i'm thinking about it that it seems weird

maybe he spent all his money on satellite tv and horses hence the crap house?

DavidPostill

Hmm. Someone has misplaced their tin foil?

0

A: How to install local .deb packages with apt-get

Only works when one " HAS " a PC OS, able 2 provide a command screen. Since NO OS is present on drive, Y can I NOT even get a Command screen? Same reason 4 last 5 yrs. Some-one with major Code know how or admin level, (is actively blocking my Name 4 DnLds), has only gotten worse over last 2.5 yr...

I'm so tempted to play with him :)

Burgi

Are you on glue? — Burgi 31 secs ago

DavidPostill

lol. Somebody has flagged it so I feel obliged to delete it - in about 10 minutes after my short break ;)

Burgi

sorry :)

i can retract the flag if you like

Journeyman Geek

23:55

Naa :p

Sigh. I am hating work. :(

Burgi

i'm sorry dude :(

not much i can do to help you there

Journeyman Geek

You guys are already

Burgi

you have my full support if you fancy going rabid and biting ankles and arses of idiots though

especially if you film it

Journeyman Geek

Naw. Impossible to get the taste of stupid out

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