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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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How do I recover data from a BTRFS Fedora partition if live images do not "see" the disk? (lemmy.wtf)

submitted 2 days ago by nitroemdash@lemmy.wtf to c/linux@lemmy.ml

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I cannot get further than GRUB except to rescue mode, when I attempt to boot the main Fedora OS it gets stuck on searching for a disk indefinitely. Gets stuck on Job dev-disk-by\<many symbols>.device/start running (1h / no limit) in the console.

I have a Windows partition on same drive, it also doesn't boot, it's rescue command prompt (from where you are instructed to open notepad to rescue files) doesn't "see" any disk but C: and X: (emerg boot).

I tried booting this machine with two live OS USBs: Fedora and SystemRescue. Neither of them list the SSD (or anything but the USB drive FS itself) in lsblk or the file manager.

Due to lack of storage mediums, I haven't done a backup in a while. How can I rescue the files? Many passwords are also stuck there, in Firefox manager I wasn't able to sync due to losing access to the 2FA email.

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[–] PumpkinEscobar@lemmy.world 1 points 1 hour ago* (last edited 1 hour ago)

It does look like your storage controller got switched to raid mode. Some ai generated slop-fix:

Your storage controller actually is visible in the lspci output, but it is currently hidden inside a RAID cluster.

Look closely at this specific line from your list:
00:17.0 RAID bus controller: Intel Corporation Comet Lake PCH-H RAID

Why Your Drive Seems Missing

Intel RST Active: Your motherboard BIOS is configured to use Intel Rapid Storage Technology (RST) RAID mode.
Controller Hiding: When RAID mode is active, the Intel controller intercepts individual NVMe or SATA drives.
Linux Limitation: The standard Linux kernel cannot see individual NVMe drives behind this specific Intel RAID controller without configuration.

How to Fix It

You need to switch your storage controller from RAID mode to AHCI/NVMe mode.

Reboot your laptop and enter the BIOS setup (usually by pressing F2, F12, or Del at startup).
Locate the Storage Configuration, SATA Mode, or VMD Setup menu.
Change the setting from RAID or Intel RST to AHCI (or disable VMD).
Save and exit. [1]