Operate Bitcoin Core on a laptop with restricted storage capacity

ABCbits

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Quote from: philipma1957 on October 20, 2023, 07:38:41 AM

down load this program

https://www.magicaljellybean.com/keyfinder/

take the gear off line

open the key finder find the good key

for the windows 10 or 11

copy the key.

I didn't know such tool exist. In past, i either copy the key manually from bottom of the laptop or check whether the windows key is embedded on the hardware (usually on it's BIOS). But FWIW, if the key is categorized as OEM key it might not work on different device.

philipma1957

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Quote from: Findingnemo on October 18, 2023, 01:16:54 PM

Quote from: DifDrama on October 18, 2023, 04:39:12 AM

Thank you all for your valuable insights and assistance. I plan to take the next few days to explore refurbished laptops online, based on the advice you've provided. Once again, a big thank you to each one of you for your help!

Look for the business class models, for example Dell Latitude, HP EliteBook because they are durable and their components can be accessed easily even if you can change with SSD on your own if you want to increase the size of memory.

I don't know how the quality of refurbished products but the offline store is the best to buy such things, I remember once I bought Latitude when my PC needed to be repaired which took a week so I bought a refurbished laptop from the guy to do my things and surprisingly it still works. I don't know if the performance is still up to the level or not cause never used it for performance-related tasks but it runs even today that matters.

I have purchased from

apple refurbished= costly
dell refurbished = some good deals
ebay = some very good deals
Newegg = some very good deals.
At the op you can do a fresh install so you don't worry about malware.

open the refurbed gear make sure it works

down load this program

https://www.magicaljellybean.com/keyfinder/

take the gear off line

open the key finder find the good key

for the windows 10 or 11

copy the key.

turn the gear off pull the drive out put in a 1tb samsung ssd.

install a fresh windows

use the key you copied. and boom a laptop with a clean windows install and a good key.

you kind of want the gear to have 16gb or more ram
and 6th gen or better Intels i5 or i7.

fast look on Newegg

https://www.newegg.com/dell-latitude-5400/p/N82E16834343370

$235

8th gen i5 = good
16gb ram = good
windows 10 pro key = good
512gb nvme ssd = need to upgrade to 1tb

this one is a bit better price 209

https://www.newegg.com/black-dell-latitude-e5570-mainstream/p/1TS-000A-0W9X2?Item=9SIB9ADJSB1721

i5 6 gen = okay
16 gb ram = okay
1tb ssd = okay
windows 10 pro = good

1 year warranty from reseller = good

just a matter of making sure you get the key so you can reinstall a fresh windows 10 pro

Findingnemo

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Quote from: DifDrama on October 18, 2023, 04:39:12 AM

Thank you all for your valuable insights and assistance. I plan to take the next few days to explore refurbished laptops online, based on the advice you've provided. Once again, a big thank you to each one of you for your help!

Look for the business class models, for example Dell Latitude, HP EliteBook because they are durable and their components can be accessed easily even if you can change with SSD on your own if you want to increase the size of memory.

I don't know how the quality of refurbished products but the offline store is the best to buy such things, I remember once I bought Latitude when my PC needed to be repaired which took a week so I bought a refurbished laptop from the guy to do my things and surprisingly it still works. I don't know if the performance is still up to the level or not cause never used it for performance-related tasks but it runs even today that matters.

DifDrama

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Thank you all for your valuable insights and assistance. I plan to take the next few days to explore refurbished laptops online, based on the advice you've provided. Once again, a big thank you to each one of you for your help!

philipma1957

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Quote from: Cricktor on October 16, 2023, 03:34:28 PM

Quote from: LoyceV on October 16, 2023, 02:27:28 AM

Quote from: DifDrama on October 12, 2023, 12:39:25 AM

You're absolutely right, this kind of business with refurbished business laptops is quite common worldwide. While affordability and durability are key advantages, ensuring the security of these devices remains a crucial consideration for me.

Easy: wipe them and install whatever Linux distribution you prefer. I'd never use any pre-installed operating system, and prefer to buy my laptops empty.

If you're really paranoid or security conscious, see if the firmware isn't the last version or if it is the last available version, maybe you can downgrade it temporarily. Any refurbished laptop that came to me so far didn't have the latest bios/firmware. Flash the latest version, wipe the storage as LoyceV said and install the OS of your desire fresh. That's safe enough for me, I'm likely not a target for three letter agencies and bios malware is probably quite rare and/or more something for specifically targeted attacks.

Quote from: LoyceV on October 16, 2023, 02:27:28 AM

Another thing to check: power consumption. The less, the better. It's quiet, saves money, attracts less dust and stays colder. Whenever I buy a laptop, I first search the "TDP" for the CPU. The lower the better.

I'm kind of in the same boat as I rarely need any of my laptops for computation and energy heavy stuff. Keeping the cooling section clean gives you a longer life for your device. Dust is the enemy.

Quote from: LoyceV on October 16, 2023, 02:27:28 AM

I never remove my laptop battery, and after 8 years it's at 70%. If I'd disconnect it, I can't use it when I need it (for instance when I unplug the laptop).

Well, it depends on the level of wear the supplied battery of the refurbished laptop already had. You can be lucky or not so much. That's also dependent on the refurbisher and availability of good batteries for your laptop model.

I rarely need any of my laptops in a truely mobile situation with no power plug. But that's me and YMMV.

I am a big fan of hp,dell,lenovo tiny gear.

basically 8 by 8 by 2.

easy to swap out parts very durable.

you can’t game much with them but they are workhorses and very easy to clone the internal ssd to have a back up booter.

https://www.ebay.com/itm/266453641170?

cheap

about 110 with shipping and tax.

grab the windows 10 activation code use magic jelly bean write it down.

put in an 85 dollar crucial ssd 2tb or a 129 dollar samsung ssd 2tb

for 200 bucks you have a low power i7 6700t cpu .

you can do a lot of basic shit with it. All the content I had ever done on this website could be done with it.

If you take your time looking at them you some times find one with 32gb and an i7 8700t

which is a nice machine.

Cricktor

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Quote from: LoyceV on October 16, 2023, 02:27:28 AM

Quote from: DifDrama on October 12, 2023, 12:39:25 AM

You're absolutely right, this kind of business with refurbished business laptops is quite common worldwide. While affordability and durability are key advantages, ensuring the security of these devices remains a crucial consideration for me.

Easy: wipe them and install whatever Linux distribution you prefer. I'd never use any pre-installed operating system, and prefer to buy my laptops empty.

If you're really paranoid or security conscious, see if the firmware isn't the last version or if it is the last available version, maybe you can downgrade it temporarily. Any refurbished laptop that came to me so far didn't have the latest bios/firmware. Flash the latest version, wipe the storage as LoyceV said and install the OS of your desire fresh. That's safe enough for me, I'm likely not a target for three letter agencies and bios malware is probably quite rare and/or more something for specifically targeted attacks.

Quote from: LoyceV on October 16, 2023, 02:27:28 AM

Another thing to check: power consumption. The less, the better. It's quiet, saves money, attracts less dust and stays colder. Whenever I buy a laptop, I first search the "TDP" for the CPU. The lower the better.

I'm kind of in the same boat as I rarely need any of my laptops for computation and energy heavy stuff. Keeping the cooling section clean gives you a longer life for your device. Dust is the enemy.

Quote from: LoyceV on October 16, 2023, 02:27:28 AM

I never remove my laptop battery, and after 8 years it's at 70%. If I'd disconnect it, I can't use it when I need it (for instance when I unplug the laptop).

Well, it depends on the level of wear the supplied battery of the refurbished laptop already had. You can be lucky or not so much. That's also dependent on the refurbisher and availability of good batteries for your laptop model.

I rarely need any of my laptops in a truely mobile situation with no power plug. But that's me and YMMV.

LoyceV

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Quote from: DifDrama on October 12, 2023, 12:39:25 AM

You're absolutely right, this kind of business with refurbished business laptops is quite common worldwide. While affordability and durability are key advantages, ensuring the security of these devices remains a crucial consideration for me.

Easy: wipe them and install whatever Linux distribution you prefer. I'd never use any pre-installed operating system, and prefer to buy my laptops empty.

Quote from: NotATether on October 12, 2023, 07:27:27 AM

Side question, how long do these refurbished devices last? It obviously cannot last as long as a brand-new device, which means it will fall apart sooner, is that not the case?

Can I answer with "forever"? Wink

I've had new laptops break within a few years, sometimes mechanical (the hinges), sometimes the mainboard just giving up. I also have laptops 8-12 years old, and they get useless because of old age, not because they're breaking. Amazingly, most laptop batteries are still working after 10 years, although they run out quicker. And I do replace the CPU fan once in a while.
Another thing to check: power consumption. The less, the better. It's quiet, saves money, attracts less dust and stays colder. Whenever I buy a laptop, I first search the "TDP" for the CPU. The lower the better.

Quote from: Cricktor on October 15, 2023, 07:11:24 AM

I have a refurbished Dell Latitude E6440 now since at least 2017 and it still works like a charm. When I purchased it I could barely see any signs of usage, lucky me. The battery that came with the laptop is still quite OK. To preserve battery life and when I don't need the battery when I can run the laptop on a power cord, I usually disconnect the battery when it is charged around 40%. On a Latitude you could also configure the battery management to only charge the battery to 50% max. when you're always plugged to the power cord. Such low charging levels are beneficial for battery life and endurance. I treat my laptops also always with some care and don't bang them around.

I never remove my laptop battery, and after 8 years it's at 70%. If I'd disconnect it, I can't use it when I need it (for instance when I unplug the laptop).

philipma1957

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ebay usa based has thousands of good laptops or pcs. lots of good sellers.

newegg has a ton of good used pcs and laptops.

https://www.newegg.com/p/1VK-0001-69VD3?Item=9SIADT2JBS4330

quick search.

first find the windows 11 key write it down

then-pull the windows ssd it is too small.

put in a 1tb ssd. install a fresh windows 11.

activate windows 11 with the code you copied.

under $ 250 cost if you attach it to your tv for a monitor.

plus you have a spare 512gb ssd.

load your core 25 to it.

DifDrama

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Quote from: NotATether on October 12, 2023, 07:27:27 AM

Side question, how long do these refurbished devices last? It obviously cannot last as long as a brand-new device, which means it will fall apart sooner, is that not the case?

That's the reason to seek out trustworthy refurbishers and assess the device's initial build quality. Reputable refurbishers go the extra mile by either replacing or refurbishing essential components, ensuring the device functions well and enjoys an extended lifespan.

Then another important question arises: how can one identify a reliable refurbisher? Huh

Cricktor

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Quote from: NotATether on October 12, 2023, 07:27:27 AM

Side question, how long do these refurbished devices last? It obviously cannot last as long as a brand-new device, which means it will fall apart sooner, is that not the case?

I have a refurbished Dell Latitude E6440 now since at least 2017 and it still works like a charm. When I purchased it I could barely see any signs of usage, lucky me. The battery that came with the laptop is still quite OK. To preserve battery life and when I don't need the battery when I can run the laptop on a power cord, I usually disconnect the battery when it is charged around 40%. On a Latitude you could also configure the battery management to only charge the battery to 50% max. when you're always plugged to the power cord. Such low charging levels are beneficial for battery life and endurance. I treat my laptops also always with some care and don't bang them around.

Other refurbished laptops I use are a Thinkpad T520 and another Dell Latitude E7440. Both work just fine for years now.

Quote from: NotATether on October 12, 2023, 07:27:27 AM

Why are you buying a laptop if you do not need the battery? An older generation tower + peripherals can also be assembled or bought for less than a new laptop.

Because older generation towers are usually more power hungry than laptops which are mostly designed for power efficiency. I do care about power consuption of devices in my household, particularly those that operate for longer periods of a day or even 24/7.

NotATether

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Quote from: DifDrama on October 12, 2023, 12:39:25 AM

You're absolutely right, this kind of business with refurbished business laptops is quite common worldwide. While affordability and durability are key advantages, ensuring the security of these devices remains a crucial consideration for me.

Side question, how long do these refurbished devices last? It obviously cannot last as long as a brand-new device, which means it will fall apart sooner, is that not the case?

Quote from: Cricktor on October 07, 2023, 02:00:06 PM

You don't need the newest hottest stuff for big money, you can enjoy laptops that are built to last and do the job. Stay away from consumer laptops, some of them are a pain to open to replace RAM or storage. If you don't need the mobility aspect, then battery life might not be top priority either. Very common older business laptops sometimes still have some suppliers for the battery. Stay away from cheap battery crap, you don't want to risk to burn down your living space.

Why are you buying a laptop if you do not need the battery? An older generation tower + peripherals can also be assembled or bought for less than a new laptop.

DifDrama

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Quote from: Cricktor on October 07, 2023, 02:00:06 PM

I can't make assumptions where OP lives. In my country there are quite some dealers who trade with refurbished business laptops or leasing returns.

You're absolutely right, this kind of business with refurbished business laptops is quite common worldwide. While affordability and durability are key advantages, ensuring the security of these devices remains a crucial consideration for me.

Cricktor

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I can't make assumptions where OP lives. In my country there are quite some dealers who trade with refurbished business laptops or leasing returns. This is not the hottest new electronic shit on the market but mostly very affordable and durable business laptops which are easier to open, to repair or to exchange parts, e.g. when you need a bigger storage device in them.

You don't need the newest hottest stuff for big money, you can enjoy laptops that are built to last and do the job. Stay away from consumer laptops, some of them are a pain to open to replace RAM or storage. If you don't need the mobility aspect, then battery life might not be top priority either. Very common older business laptops sometimes still have some suppliers for the battery. Stay away from cheap battery crap, you don't want to risk to burn down your living space.

DifDrama

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Quote from: philipma1957 on September 25, 2023, 11:00:03 PM

Why must people do things like this?

Here is my cheap solution buy a used laptop that allows a ssd to be put inside of it.

Your response broadened my perspective on this issue, and I appreciate your suggestion. It's indeed worth considering purchasing a used laptop with a suitable SSD, and your detailed considerations provide valuable guidance. Thank you for your helpful input!

NotATether

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Yes it is absolutely possible to use an external hard drive as your data directory, bit it must be connected to your computer at all times, otherwise there's a risk for data corruption. Bitcoin Core is very slow at cleaning up its state, so if you just disconnect the drive without ejecting it safely first, it's not going to have enough time to dump its memory database of transactions onto the disk.

Also it would be much simpler to buy a big enough internal storage disk and a SATA connector assuming your laptop has room for an extra cable/device inside.

btctodamon

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Quote from: DifDrama on September 21, 2023, 09:09:33 PM

Are there some recommended approaches for running Bitcoin Core on a laptop with constrained storage capacity? Is it possible to use an external hard drive as the data directory (datadir)? How does this setup work, and would I need to pay attention to?

It is feasible to run Bitcoin Core on a laptop with limited storage, but you will need to make certain tweaks to effectively manage the storage needs. Here are suggestion.
Pruning: which limits the amount of data retained on your disc, is a feature of Bitcoin Core that you may enable. Pruning keeps the most current blocks while removing old block data. Add the following line to your bitcoin.conf configuration file (found in the bitcoin data directory) to enable pruning.
amount of megabytes pruned
Substitute the appropriate size of the blockchain data you wish to save for "number of megabytes." The latest 2 GB of blockchain data will be kept by Bitcoin Core for instance if you set it to 2048.

philipma1957

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Quote from: DifDrama on September 21, 2023, 09:09:33 PM

Are there some recommended approaches for running Bitcoin Core on a laptop with constrained storage capacity? Is it possible to use an external hard drive as the data directory (datadir)? How does this setup work, and would I need to pay attention to?

Thank you in advance to everyone who responds to this question.

Why must people do things like this?

Here is my cheap solution buy a used laptop that allows a ssd to be put inside of it.

under 1 minute search on ebay I find a 2tb ssd i5 8th gen dell for $253.00

Problem solved.

https://www.ebay.com/itm/295574053536?

there really is not an easier way.

cheaper way yes search long on ebay and find a laptop with 1tb ssd

https://www.ebay.com/itm/195976457193?

the one above is under 200 usd

please note I did fast searches on ebay and found suitable laptops. I do not know the sellers.

DifDrama

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I extend my heartfelt gratitude to all those who take the time to offer their assistance and insights.

promise444c5

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Quote from: DifDrama on September 21, 2023, 09:09:33 PM

Are there some recommended approaches for running Bitcoin Core on a laptop with constrained storage capacity?

Yes as it has been said you can always use external drives to a save all your blockchain datas which will serve as you directory to be precise. It now depends on you find a suitable drive for it,you could use hard drives as you've asked.

Quote from: DifDrama on September 21, 2023, 09:09:33 PM

How does this setup work,

I did some research for you and I found out a quote with a detailed explanation on how to go about it

It's a post made by HI-TEC99 on January 08 2017

Quote from: HI-TEC99

There is a way to to that if you create a shortcut to your Bitcoin-qt inside a folder you installed it to.

Right click your blackcoin qt Bitcoin-qt and select "create shortcut". Right click the shortcut and select properties. A popup should open containing a text box with the word target written to the left of it. Add the line of text below to the end of whatever is already written in it. Make sure there is a space between the text that was already in the text box and the text below.

-datadir=.

Press the apply button, then the OK button.

Double click the shortcut to start the blackcoin Bitcoin-qt wallet and it should store its largest files (the blockchain) and also its wallet.dat inside the folder containing the shortcut.

You can install the blackcoin qt Bitcoin-qt to a folder on a thumbdrive, use that shortcut technique, and when you double click the shortcut the blockchain and wallet.dat will get stored on your thumbdrive, not in appdata.

If you use that technique, and accidentally double click the qt instead of the shortcut a new wallet dat and blockchain will get created on your C drive inside appdata. Make sure you always start your wallet using the shortcut.

You can go through and follow the directions if there's seems to be no change in the aspect. It should help.

simpleSliv3r

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Quote from: DifDrama on September 21, 2023, 09:09:33 PM

Are there some recommended approaches for running Bitcoin Core on a laptop with constrained storage capacity? Is it possible to use an external hard drive as the data directory (datadir)? How does this setup work, and would I need to pay attention to?

Thank you in advance to everyone who responds to this question.

All what you said is possible, you can run it with a low storage capacity and you can use an external hard drive to have more capacity.

If you use your first option, then you need to prune your BitcoinCore, that means that you will only store a certain amount of blocks according the configuration that you specified.
In order to prune it, you just have to add the following line on bitcoin.conf file:

Code:

prune=10000

This would allow to store all blocks possible in 10Gb if you have 5Gb then use 5000, etc.

For the second option, using an external hard drive, you just have to add the parameter -datadir=$pathToStorage when running the Btc Core:

Code:

bitcoind --datadir=/mnt/data

You can also add that parameter on the bitcoin.conf file so you'll not have to specify it every time. (Use your own /data path)
This article does it with a rapsberry: https://ishaana-misra.medium.com/using-raspberry-pi-to-run-a-full-bitcoin-node-a30c6339b06e
The setup is the same so you can follow the part where she uses the parameter datadir:
- Setting Up The External Hard Drive
- Installing & Running The Bitcoin Core

Hope this helps

SS

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