Can't Log in to User on Linux Mint Cinnamon (Loops Back to Login Window)
cross-posted from: lemmy.world/post/34365607
Hi fediverse,I'm hoping someone can give me some advice on an issue that means I can't access the main user account on my Linux Mint (Cinnamon) operating system.
Context:
I'm using a dual boot setup of windows and mint on my laptop.
I use mint (or used to, when I could access my user) for pretty much anything that doesn't require things* only my windows instance has. (*things such as support for video games that support windows but not linux, for example)When creating my main user account, I made a mistake in the username. It was irritating enough for me to want to change it, and as doing so seemed like it should have been fine, I settled upon three guides and ended up (mostly?) just following this one:
linuxuprising.com/2019/04/how-…
I cant remember all of what happened anymore, but I have the following screenshots, along with the stuff I do remember.
(note: red blocks represent the new username, blue blocks represent the old username)
At the used-by-process error, I first tried following the guide precisely, then hoped that "PID" was Process ID, and that the guide expected me to put the ID that usermod stated after "PID", and tried doing that.
Idk if that fvcked something up...
Then I guess I fixed that somehow, idk if I did so by restarting and logging in only as tempuser, or if I had already done that and fixed it some other way.
Anyway I meant to run each line of the command separately to avoid stuff going wrong, but accidentally did both at once. I hoped it'd be fine anyway.
Then stuff happened I guess.
Anyway,
I cant remember much more but I know that I tried to log back in as my main user account and I found out that:
- The username had been successfully changed.
- I could not log into my main user account.
Imputing the correct username and password was successful, and acted like it was logging me in as usual. Then after the usual black screen, it just throws me back to the login window.
This still happens.
I went through a fair bit of internet searching, followed some advice. All that most people were saying was to check how much disk space you have left - and to not keep timeshift snapshots on the same drive as your OS.
(this is one such post, and (I think) the only one I found that I definitely recognise from the previous searching: reddit.com/r/linuxmint/comment…)
I did ctrl-alt-f1 and ran df -h, and deleted most of the timeshift snapshots I had (I think I had maybe 6 and deleted 4 or 5).
Here's the output of df -h that I think is from after I deleted the timeshifts:
Idk what to do, hope someone can advise.
(TL;DR: tried to change username on mint, now whenever I try to log in to the user it throws me back to the login window after the usual black screen. Hope this suffices for a summary...)
How To Change Username On Ubuntu, Debian, Linux Mint Or Fedora
This is a step by step guide on how to change your username on Debian, Ubuntu, Linux Mint (and other Linux distributions based on Debian/Ubuntu), and Fedora.Linux Uprising Blog
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cross-posted from: lemmy.ml/post/34581821
paywall bypass: archive.is/whVMIthe study the article is about: thelancet.com/journals/langas/…
article text:
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AI helped health professionals to better detect pre-cancerous growths in the colon, but when the assistance was removed,
AI improved doctors' ability to spot cancer.
The problem was not exercising a skill for several months, and then taking away the tool which was better than that skill.
We assessed how endoscopists who regularly used AI performed colonoscopy when AI was not in use.
I wonder if mathematicians who never used a calculator are better at math than mathematicians who typically use a calculator but had it taken away for a study.
Or if grandmas who never got smartphones are better at remembering phone numbers than people with contacts saved in their phone.
Tip: your brain optimizes. So it reallocates resources away from things you can outsource. We already did this song and dance a decade ago with "is Google making people dumb" when it turned out people remembered how to search for a thing instead of the whole thing itself.
Which does cause problems now that Google search is shit.
Every time 'new tool makes old skills rusty' is treated as novel, I'm reminded of The Gentleman's Magazine:
Instead of simply reproducing the operations of man's intelligence, the arithmometer relieves that intelligence from the necessity of making the operations. Instead of repeating responses dictated to it, this instrument instantaneously dictates the proper answer to the man who asks it a question. It is not matter producing material effects, but matter which thinks, reflects, reasons, calculates, and executes all the most difficult and complicated arithmetical operations with a rapidity and infallibility which defies all the calculators in the world. The arithmometer is, moreover, a simple instrument, of very little volume and easily portable. It is already used in many great financial establishments, where considerable economy is realized by its employment.It will soon be considered as indispensable, and be as generally used as a clock, which was formerly only to be seen in palaces, and is now in every cottage.
This was a crank-powered adding machine. Numbers used levers instead of buttons because buttons hadn't been invented yet. There were already people who expected it the next version would do everything for us - and people who thought that would be bad, somehow.
Which does cause problems now that Google search is shit.
Seriously at what point did search engines stop matching results by keyword?! Just a few days ago I tried looking for a quote I didn't fully remember, but knew the basic thesis and some identifying terms it definitely mentioned and all I got was tabloid articles for pages and pages on end which only vaguely matched the thesis but didn't mention any of the identifying terms I remember the quote using. It threw me for a loop because I remember being taught in school to search for stuff this way and I don't know if I'm just stupid or misremembered the quote or search engines don't actually match keywords anymore. Why would they remove the most basic form of search, literally just regexing for all the strings given?!
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Rivalarrival
in reply to DuckyLoco404 • • •Check permissions on your home folder. Make sure everything is owned by your new username.
I had a separate partition mounted on /home on my old system. I remounted the same partition at /home on the new system, and got the same bootloop issue. The problem was that the old permissions were for 1001:1001, not (newuser):(newuser). Had to log into a TTY and chown (newuser):(newuser) -R /home/(newuser) to get everything working.
DuckyLoco404
in reply to Rivalarrival • • •DuckyLoco404
in reply to DuckyLoco404 • • •gnuhaut
in reply to DuckyLoco404 • • •First, check if you can login, with your new user, on the Linux console (i.e. Ctrl-Alt-F1 through F7). If you can, the username change probably went through correctly. Report back if you cannot login via console or you get warnings/errors.
Your login session does automatically terminate if the session process for Cinnamon exits, booting you back to GDM (or whatever login manager you have). So probably the Cinnamon session process, started by GDM, craps out for some reason. The reason is probably, I suspect, that it cannot access or cannot find some file it wants to open.
Check
~/.xsession-errors, it might tell you what went wrong.Also check the permissions of your home folder, the files in your home folder, and check if you correctly set up the symbolic link from
/home/olduserto/home/newuseras the guide suggests.