How to Repair Linux With Boot Failure

This video shows you how to repair Linux when you have boot failure.

[kevinklement]

I like that you pronounce it "f-stab" like I always do in my mind. I have no idea how long it was until I realized it was "f.s.-tab" for "file system table".

[tsundoku]

12:06 This is why some people say that dd stands for "disk destroyer".
By the way, you can add the option status=progress to see a progress indicator.

[digitalsparky]

It should be noted with chroot that if you're doing upgrade fixes and stuff you may need access to devices, in this case you will need to bind mount (mount --bind) /proc and /dev into the chroot environment first, failure to do so may come up with errors)

[ThatLinuxDude]

For Debian-based, just use *boot-repair* if the issue is a GRUB issue (via a Live Session).

[paulphoenix]

hahaha! watching on full screen then went blank screen i thought my laptop failed.

[Supperconductor]

This is a great lesson. I've screwed up installations and then apparently made them even worse using automated tools. It's always better to understand what's happening under the covers so you recover intelligently. Thanks!


EDIT: BTW I've started using Manjaro/XFCE and absolutely love how well it performs on all my machines.

[yvrelna]

Another trick that often saved my ass, especially on systems that does not have a CD/DVD drive or when you don't have a USB pendrive with you, is to boot directly into an ISO image file.

Suppose that you have an bootable Live ISO image of the distro of your choice in your /home/user/Downloads/ folder or suppose that you have the foresight to put a Live ISO on your /boot/ folder. You can use Grub Shell to loopback mount the ISO image and boot directly into that disk image; this has the exact same effect as booting from USB drive without needing any extra hardware (or access to the USB port, if that matters). From the Live system, you can edit files on the installed system or chroot into the installed system, and if you used Live ISOs that boots into a graphical environment for installer, you would be able to do your fixing from a GUI environment (which has the benefit of having a working networking and a web browser).

[HarshYadav-yitv]

Thank you man I was just fucked up with my Display Manager and Now I Saved My System Booting in bash just Worked out For Me

[frenk]

11:37 "dd" stands for "data duplicator".
At 11:58 you can see why its alternative (and way more popular) name is "disk destroyer".

[hypnosisauthority]

WOW I have a lot to learn. Thanks for the great lesson Chris

[frclayton]

Very nice. Few weeks ago I deleted my boot partition by accident, had to remember manual commands for partition creation, format, etc. I suggest a presentation for a disaster recovery when you disk has to be replaced and you need your OS back. What are the best tools, procedures, etc. for this kind of situation?

[ROLOGamingOfficial]

OMG! I've been trying to solve this issue for weeks now, and finally stumble into your video IT WORKED!! Thank you very much.
I've installed W11 to my lap, because I needed to use proprietary software (only available in windows) did dual boot but my GrubHub disappeared and could boot back into Linux! But this fixed it thanks again!

[KangJangkrik]

Installing 32bit debian on Hyper-V is quite a headache, thankfully this video helps me

[alexandramiller]

exactly yesterday I would have needed the recovery tricks as my filesystem had some errors that fsck didn't fix itself. :D

I already figured it out but this video would have saved me around 2 hours.

thanks for the vid, know more ways to fix it now! <3

[davidwayne]

I realize this is an OLD video-- but I just found it and NEED IT.. THANKS

[maxsterling]

Thanks .. this was a real cool video. I had to do mount from CD to fix sudoers file. Another time, our VM crashed b/c it ran out of disk space. It wouldn't boot b/c of no disk space left. So, we booted of live CD and cleared space in /var/log and added more space to that logical volume.

[squadramunter]

Thank you Chris for this beautiful explanation of chroot. I asked you on Twitch about this. Greetings, Patrick. AKA SquadraMunter

[AJMarraffa]

Thank you for teaching me how to access the shell from grub! My problem was the nvidia drivers. I purged all nvidia content from my install and got back in 👌

[andrewmerrin]

Thank You!!! Was about to reinstall my OS but chroot fixed my problem!

[ckscullion]

Hey... how about a video on how to upgrade to a larger hard disk on an arch linux pc (without reinstalling)?