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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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No permissions - Did I bonk my LUKS encryption? (lemmy.ml)

submitted 1 month ago* (last edited 1 month ago) by drid@lemmy.ml to c/linux@lemmy.ml

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Hello Linux Helpdesk. ;)

I use Fedora (currently 40), and have done for a while.

I always LUKS+Ext4 encrypt my local drive and decided to do the same to my external hard drive.

Last week I reinstalled Fedora 40 from a Bootable USB, but when I tried to access my files om my external drive it now gives me the error

You do not have permission to view the content of "Files".

I've read online it's due to me no longer being the "Owner" of the drive I was in my previous install of Fedora and now I'm a different user and apparently no users a part from Owner have any permissions on an EXT4+LUKS drive.

Is there any way to give myself permission to see the content again or did I bonk my backup? As a note, I DO have the correct Luks password, it shows me the name of the encrypted disk after decrypting, which is "Files"

Thank you in advance.

Edit: Thank you everybody, thanks to you I've been able to rescue my files. Y'all deserve a great day!

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[–] mlfh@lemmy.ml 2 points 1 month ago

/dev/sda is the whole raw disk - you typically don't want to directly interact with /dev/sda, unless you are partitioning or overwriting it. There are a few layers between that device and the files:

raw disk - /dev/sda
disk partition - /dev/sda1
luks container - when unlocked, mapped to /dev/mapper/{name}
ext4 filesystem inside the luks container, mounted somewhere like /mnt, /media, etc

You'll need to find where that ext4 filesystem is mounted, and run the chown command on that. You can run lsblkand see a tree of the above hierarchy, with the ext4 filesystem's mountpount shown in the right-hand column.