Topic: Does it make sense to have mobile wallet + desktop wallet from same brand? (Read 676 times)

I was having the impression that when the OS starts up, there has to be temporary storage for activities like writing logs, caching data, creating temporary files etc.

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On the contrary, Tails never writes anything to the hard disk and only runs from the memory of the computer. The memory is entirely deleted when you shutdown Tails, erasing all possible traces.

Okay. So, you'll need another storage device which will be used as encrypted partition, otherwise the OS cannot operate.

Using a (read only) DVD instead of USB means your OS can't be tampered with for sure. The moment you reboot, it's fresh again.
Your data can still be stored on any other encrypted partition.

How's DVD-R safer? I don't understand. If the DVD is one-time burned, then you probably can't run any OS on it. If it isn't one-time, then it works similarly to a USB? Curious, actually, I may be wrong. I haven't ever used DVD for anything beyond burning videos.

I don't think that's over cautious at all. It is simply good sense not to have all your coins in a single wallet, regardless of how secure you think that wallet is.

A simpler way to avoid tampering with your OS is burning a DVD-R, then write on it so you know it wasn't switched out.

You're asking different things. In the title, you're asking if it's okay to install the same wallet on different devices. I'd say that's fine (as long as the wallet itself can be trusted).

Then, you're asking this:
I don't think this exists. The transactions (in a HD wallet) will of course be synced through the blockchain, but the wallet itself (including the address labels) won't get synchronized.

That will work.

Well, "it depends": you asked for "wallets that are secure", but you should also make sure the OS is secure. If you use the same wallet on different devices, you need to make sure they're all secure.
Will there be an issue? Only if your phone gets compromised. Or your desktop. And that's the issue: you don't know that until it's too late, but by doing so, you're doubling the risk. And that's why I wouldn't do it.

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I think you need to take a step back: what are you trying to accomplish? If you own a small amount in Bitcoin that you can afford to lose, you can just do what you're suggesting. It will be very convenient and you know (and accept) the risk.
But, and I assume that applies to most people: if you want to get an increasingly larger amount of Bitcoin, it's better to create different wallets for different purposes (and that's what I do). Sometimes I use the same wallet brand, sometimes I use the same seed, sometimes it's watch-only, and some are different wallets. That doesn't mean they're all loaded, but that's not really the point.

And then there's privacy. If you have $5 trillion in your mobile wallet, your local barista may be tempted to hit you on the head. And if you buy a jet, you may not want the seller to know you bought 2 jets from his competitor the other day.
Separate wallets for different purposes are great for privacy!

I think you need to take a step back:

assuming that what you have is now completely safe ~ is a mistake.

I don't think you can encrypt the entire Tails USB stick. You mean it should ask for a password before it boots, right?

Yes, but encrypting the persistent storage only is insufficient. The entire drive should be encrypted in a way so that if a malicious third party gains access to it, they can't hide malware on it alongside your installation of Tails

Tail OS only supports the old version of Electrum 4.0.2 and it needs to be upgraded to the latest version by downloading from the official Electrum website.

Persistent storage on Tails OS is encrypted by default using LUKS (Linux Unified Key Setup) or Veracrypt.

I am a bit over cautious, so this strategy works for me... 

You should realize this is not a hardware wallet, and it's not cold storage either. If you enter your seed phrase on an unknown computer running from your own USB stick, a hardware key logger can still steal it. It's still a hot wallet, and therefore I'd always assume malware can get to it.
It's good to keep this in mind, but it will probably just work without problems.

-snip-
Any good Linux distro will work. Bare in mind that the version of Electrum which is prebundled with Tails is quite old - 4.0.2 which was released 3+ years ago. If you want to use the most recent version, you'll need to use the download (and verify) the relevant appimage as described here: https://electrum.readthedocs.io/en/latest/tails.html

And if you are using Tails, remember to set up persistent storage.

The goal is to make a portable hardware wallet from a USB Flashdisk, with good enough security and of course cheaper.

The Linux distro that is suitable for Electrum and has been integrated is Tail OS.

creating a Bootable Linux OS on a USB Flashdisk with Elecrum Wallet inside.

The goal is to make a portable hardware wallet from a USB Flashdisk, with good enough security and of course cheaper.
~
The Linux distro that is suitable for Electrum and has been integrated is Tail OS.

but on the other hand, because TOR uses a lot of unknown server circuits, it will certainly be dangerous if we use the default electrum server.

This is what I plan to try.
creating a Bootable Linux OS on a USB Flashdisk with Elecrum Wallet inside.

The goal is to make a portable hardware wallet from a USB Flashdisk, with good enough security and of course cheaper.
Only used to do a few main transactions and include protection when you want to open the Bootable Flashdisk.

The Linux distro that is suitable for Electrum and has been integrated is Tail OS.
It also uses TOR servers, so using the electrum wallet on Tail OS we get more privacy than others,

but on the other hand, because TOR uses a lot of unknown server circuits, it will certainly be dangerous if we use the default electrum server.
For that, we need to reset the Electrum server in Tail OS.

The goal is to make a portable hardware wallet from a USB Flashdisk, with good enough security and of course cheaper.
Only used to do a few main transactions and include protection when you want to open the Bootable Flashdisk.

The Linux distro that is suitable for Electrum and has been integrated is Tail OS.
It also uses TOR servers, so using the electrum wallet on Tail OS we get more privacy than others,

but on the other hand, because TOR uses a lot of unknown server circuits, it will certainly be dangerous if we use the default electrum server.
For that, we need to reset the Electrum server in Tail OS.

-snip-
or you can just install the Linux OS on a bootable removable media like a USB disk to have persistence and store the wallet between restarts.
This old topic explains the second type for example: https://bitcointalksearch.org/topic/diybitcoin-cold-wallet-usb-stick-creation-step-by-step-guide-853288

Well, similarly take out the sim card, turn off wi-fi, turn on airplane mode?