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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Filesystem suddenly becoming read-only? (lemmings.world)

submitted 1 week ago by moody@lemmings.world to c/linux@lemmy.ml

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I'm running Bazzite, which is immutable, so the root filesystem is read-only, but I've been having an issue pop occasionally where the rest of my filesystem, including my home folder, becomes non-writable. I can't do much, and constantly get popups about folders being non-writable until I reboot, and then everything goes back to normal.

Does anyone know what can cause this to happen? And is there a way to deal with this without rebooting when it does happen? I don't know when I'll be able to try anything out since it's not a frequent issue, but it has happened to me several times in the past.

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[–] klangcola@reddthat.com 12 points 1 week ago

I had the same happen on the root folder on a SATA SSD. The SSD was dying (don't remember if there was SMART errors, but the dmesg log showed write-errors. I cloned old SSD to a new SSD and haven't seen the problem since. That was years ago.

When there are multiple consecutive write errors, Linux will re-moumt the partition as read-only to protect the data. (There usually a statement along the lines of "on-error:remount-ro" for the partition in the /etc/fstab file)