this post was submitted on 06 Apr 2024

152 points (93.2% liked)

Linux

48185 readers

1437 users here now

From Wikipedia, the free encyclopedia

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.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

[email protected]

152

Mm.. can someone help? (lemmy.ml)

submitted 7 months ago* (last edited 7 months ago) by [email protected] to c/[email protected]

61 comments fedilink hide all child comments

I was editing my disk and when i wrote the changes and exited cfdisk, no cli command worked. Thats when i realized that im f-ed up.

This what happened: I have 3 partitions, 512M efi, a 100G root partition and some free (unallocated) space. I had 84G worth data in the root patition. I totally forgot that and shrinked the root partition to 32G to extend the free space. I was using cfdisk tool for this. I wrote the changes and rebooted my machine, by long pressing power button coz no cli commands worked after writing those chrnges, to see this.

So is it possible to recover my machine now?

:_ )

SOLUTION Thanks to @[email protected]. cfdisk just updates the partition table. So no worry about data damage . To fix this, live boot -> resize the partition back its original size -> fsck that partition. For more explanation, refer @[email protected] comment

(page 2) 11 comments

sorted by: hot top controversial new old

[–] [email protected] 46 points 7 months ago (4 children)

just restore the backup you made like reasonable people do

load more comments (4 replies)

[–] [email protected] -3 points 7 months ago (7 children)

I’d boot on ArchISO, get all data I need to a external drive and install Arch from scratch, btw

[–] [email protected] 6 points 7 months ago (2 children)

So what should i do.

Boot into arch iso
Mount my disk and copy files
And install arch

But i wonder if the mounting part will work. Coz of the mess ive made. I just have to try it ig.

[–] [email protected] 5 points 7 months ago* (last edited 7 months ago)

I have shrunken a APFS partition (macOS) too much lately and was still able to mount it read only using Linux and back up all stuff I needed. But that depends on how corrupted this partition is now.

Maybe you need something like Gparted live ISO in order to get to your data. Check out the Command Line Utilities on that webpage, maybe there is the savior of your data

And about the arch installation, if you want easy mode, just type "archinstall" after ArchISO has booted and your PC is connected to the internet (phone connection via USB works to get internet connection)

[–] [email protected] 2 points 7 months ago

I believe in you. Just have the ArchWiki open. It's really going to be your friend if you've not compiled Arch from scratch before.

load more comments (6 replies)

[–] [email protected] 6 points 7 months ago (2 children)

Live boot and, if possible back up everything first. Everything as in the whole disk. So ``` dd if=/dev/nvme0n1 of=backup-disk

[–] [email protected] 3 points 7 months ago (2 children)

I dont think doing back up is possible. Coz i shrinked a 100g partition into 32g which had 84g of data. Is it possible?

[–] [email protected] 6 points 7 months ago (1 children)

What they're suggesting is to back up the whole disk, rather than any single partition. Anything you do to the partition to try and recover it has the potential to make a rescuable situation hopeless. If you have a copy of the exact state of every single bit on the drive, then you can try and fix it safe in the knowledge that you can always get back to exactly where you are now if you make it worse

load more comments (1 replies)

[–] [email protected] 41 points 7 months ago* (last edited 7 months ago) (2 children)

Live boot and fsck

[–] [email protected] 12 points 7 months ago (1 children)

Pretty much, and do copy the UUID

[–] [email protected] 21 points 7 months ago* (last edited 7 months ago)

and do copy the UUID

Good theing they have a screenshot ;)

load more comments (1 replies)

load more comments