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#grub

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...the bootloader isn't on the disk that's dying (even though it's /home, but GRUB shouldn't know that). Why would it care for hd5 when unlocking itself on hd4? This is bad.
#Linux #GRUB

…and just as I was writing this it booted, but only into emergency mode (as /home is gone).

Help! #Boot / #GRUB advice:

I have a relatively new laptop. Recently when rebooting it just went to the GRUB bash-like interface rather than booting.

99 times out of 100 when rebooting the laptop doesn't recognize any USB key is plugged in and goes straight to GRUB recovery. #EFI boot sees the drives EFI files though.

1 in 100 times the whole thing boots just fine from either the drive or USB key.

BIOS hard drive diagnostics says it's fine.

Any ideas how to troubleshoot?

When there are UEFI entries missing for your Linux operating system, you can add them easily with efibootmgr:

As root: efibootmgr -c -d <disk> -p <efi-partition> -L <entry-name> -l <loader-path>

For example: efibootmgr -c -d /dev/nvme0n1 -p 1 -L "debian" -l "\EFI\debian\grubx64.efi"

It will use /dev/nvme0n1p1 and on it the file /boot/EFI/debian/grubx64.efi and add it to the UEFI boot menu. On next restart, the entry should be there.

NOTE: You have to replace "/" with "\" for the loader path.

grub question: when grub fails normal booting and drops to a grub> commandline prompt, and it's only 80x25 , is there any way to set a pager variable or something so the screenfuls of help or set output don't just whizz by uselessly? (note: I have neither serial cable or serial port on this box, if it matters.)

edit: answered by Joe W:
set pager=1

gnu.org/software/grub/manual/g

#linux
#grub
#boot

www.gnu.orgGNU GRUB Manual 2.12: pagerGNU GRUB Manual 2.12: pager

Actually, I wonder those many, long lines of (granted, useful) information printed out during boot or shutdown on a #Linux desktop - which I'm also assuming is probably #Grub, is there a way to.. hide it and not show that, and maybe replace it with a loading screen instead? I'm sure there is but I never got to looking for it just yet.

#Mastodon, j'ai un souci, et j'aurais bien besoin d'aide.
Je veux installer une #Kubuntu fraîche sur un ordi qui n'a pas été mis à jour depuis la version 18.04 (oui, ça fait longtemps).
Cet ordi, un #Asus N752vx-gc195T, tourne actuellement avec un dual-boot Kubuntu-Windows.

J'ai fait un #liveCD et une #liveUSB pour mon #install mais les deux, après un passage par l'écran #Grub, ne me proposent qu'un écran noir.

J'ai modifié tous les paramètres de la clé et du bios (MBR, EFI etc.). Désactivé le secure boot. Ajouté les paramètres nomodeset, acpi=off lors du lancement de Grub.
Rien.
La seule chose que j'aie, c'est un écran un peu plus verbeux lorsque je remplace "quiet" par "verbose", mais qui plante en quelques poignées de secondes et me laisse comme sur la photo ci-dessous.

Je ne sais plus quoi faire. #help

#dailyreport #secureboot #encyption #dracut #linux #boot
#gentoo #grub #dm-crypt
I installed Gentoo GNU/Linux with full encypted root with
deattached LUKS2 header by GPG encrypted key file at
USB. :-) If you don't understand - it is perfect.

I almost gave up, but suddenly found complete guide from
"Screenager" with hack to Dracut.

It is Grub -> Dracut -> decrupt, mount -> Root.

"plymouth quit" - that is how to get access to Dracut
rd.shell.

I know three ways to boot kernel:
- kexec and chroot from installCD
- Legacy BIOS - MBR record
- UEFI - EFI stub, makes installation even more harder.

Why so much effor? 1) Because this is Ring 0 level of
security. 2) Actually, I have a very good GPG
encryption for a single file with GPG prompt outside of
Windows. I just prove to myself that I can do it.

Continued thread

The ones who pay attention, must have caught the typo that I've made when I entered the parameters in the permanent section {see above graphic}. I've also caught it when I booted the system and saw the omission. Naturally I corrected it and everything is fine now

I used the following command which a kind FediVerse user echoed to me

'cat /proc/cmdline'

#bash#csh#ksh
Continued thread

Now you will ask why I put up a screen cap of Naked.Gun.33.1.3.The.Final.Insult in this thread.

The logic is simple. Because I now have tsc=unstable in my permanent boot options in GRUB, I have achieved playing this 1080p stream on my machine without any hickups of mPlayer!

mPlayer has the gorgeous option of bailing out by itself if you have CPU/GPU/FPU or RAM issues, protecting an unstable machine as my Gigabyte miniPC. Since the switch mPlayer did not have to bail out!

@altbot

#GRUB#bash#csh