keep flying my kiddo

you never let me down. I have let you down by not being there with you when you were down

miss you too my son

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I do not think it is a good idea to prepare a vm image and install it as iso. it can be done afaik, but not a great idea. Assuming he (your dad) already has a ubuntu system (presumably some lts, i am asssuming something like 1604, 1804 or 2004) then it is easier to just upgrade the system. I know you said that he has forgotten to upgrade, so i would ask him to somehow send you a photo of what he has installed right now (can be hard, but maybe just asking what animal is present on the wallpaper (if he uses the default one that ubuntu uses) can help. even look of top bar or icons can help to get the age. Afaik, ubuntu upgrade paths are relatively stable, so once you know what version he uses currently, then you can install that version, and upgrade it to newest install on your system and record instructions. This would be long and tedious task. I do not use ubuntu, so i do not know what jumps can be taken (i know you can jump from 1 lts to another, something like 1804 to 2004, but can you jump 2 lts versions? some ubuntu forum or wiki post can help regarding this). Once you complete upgrades, you can record instructions and send them.

This can be a easier for following reasons -

• he would not have to plug in usb and boot into installer mode - this can be hard if he does not know what key to press, or if he does not press it fast enough

• you would still be using some standard installation, rather than your “custom” iso - not a big thing, but upgrades are more certain in a standard installation

• ubuntu has snaps - I am not a big fan of snaps, but it is a good thing for likes of your dad, who would prefer to have there apps (like web browser) auto updated in background. Mint has flatpak, but by default stuff is installed as deb packages, upgrading them requires sudo password, which can be hard for your parent.

the virtual image is much larger than iso, because it is uncompressed. Isos are you compressed by something like squashfs, which prepares something like a tar or zip file, which is also mountable. Also your intial virtual file system allocated size might be larger (which would largely be empty, this would be “sparse” file). From my prior experience, you can sometimes have sparse file errors, which can cause errors at bootup, these can be benign, but may seem strange to your father.

Someone else mentioned, you can also possibly install it on a laptop, and then ship that to your father, or buy a prebuilt laptop with linux preinstalled. Nowadays, some big brands like hp/dell/lenovo also have options in there build configurators to select the operating systems, and there are also linux specific vendors (more expensive). But this option in general is expensive (because there is a laptop cost).

Also, where does your father live? If he lives somewhere maybe close to me or someone you know who can go and upgrade / install new system for him. This can be hard for logistaical reasons, or you may not be able to find someone trustworthy.

posteo is what i am using. Upsides - reasonably cheap (12 euros per year), downsides - no custom domains

congrats. I have only completed a bachelors and it was hard. I literally spent blood and tears (and tons of sweat). And my guess is that you had to go through something similar (maybe not the blood part, i hope not the blood part). That shows that you have are committed and dedicated. Sorry I could not be with you for your convocation, and I do not deserve to be forgiven. I only wish you success and happiness in your life. What I have learnt in my life is - hard work pays off. I am not relegious, and will not go in to “god works in mysterious ways” kinda shit, but what i have learned is that if you make honest efforts, you can achieve stuff. If you failed, then do not be upset about it. It is natural to be upset, but to try again and succeed is even more satisfying. Best of luck for rest of your life. I’m proud of you and what you have achieved.3

congrats. I dont read much, but i might consider this one

this true, but in physics (and in maths too, especially in real analysis), we use differentiation as a equivalent transformation, in a generalised sense. we often come up with ways to define it with something like - finitely many discontinous points or something, which we can iron it. but major problem here (i think) is order of operation - we can not interchange sum and diff when they both depend on x

if i am not wrong, there is only one problem - sum to x (x times)

when we write it in a bit more concise but equivalent notation - d/dx sum_1^x x it basically becomes x^2 again. It is kinda a a=a proof, so not very interesting but that is the only problem. since sum is happening a variable number of times, we can not really let it loose.

in a more reasonable wording - what the image showed was interchanging differentiation and sum (like instead of doing sum after diff, instead of before), and such operations are allowed, but if the sum and diff are independent (not based on same variables).

this interchange works if you used some other variable which is independent of x

there are about 432 = 4! ways that is 24 and if it alarms after 3 tries, it can be safe-ish.

this is me confirming that this is my feddit.uk account, am confirming from lemmings.world

that explains it

I am up for moderation, will also spin up a account for moderation. I currently also moderate a few communities. Not very active, but do check twice or thrice a day

lemmings.world or pifed.social both are general purpose, and relatively small

I do this. I almost always pack extra information, and then skip according to time. In case someone questions back, I say, it was back on so and so slide, you might have missed it

a tshirt and pyjama, always

most solids and liquids are practically incompressible (when comparing with gasses). there is a relationship between bulk compressibility, shear stress and youngs modulus for solids, which can be extended for liquids. It does not work for gasses

they all are chronically ill, they will die, just in some time

you are not adding enough water, add more