Hello!
I am having issues with a Ubuntu installation suddenly going black, and during reboot can’t find the boot drive. It has been working fine for about a month.
Ubuntu Version:
Live-session OS is Ubuntu 64-bit (Ubuntu 24.04.3 LTS, noble, x86_64)
Problem Description:
Waking up to find the system non-responsive, with a black screen. When restarting after cutting the power the system takes longer to load than usual (no Ubuntu loading icon), followed by a single terminal output line: “No boot device available”.
Relevant System Information:
The system has been used to host a Nextcloud server as well as some basic TV-streaming. There are files uploaded that I wish to rescue.
Hardware:
- ASUS NUC 14 Essential Barebone N250
- Corsair 16GB DDR5 4800MHz CL40 SO-DIMM
- Crucial T710 1TB M.2 NVMe PCIe Gen 5
Screenshots or Error Messages:
Output from boot-repair (pastebin)
boot-repair-4ppa2081 [20250920_0846]
============================== Boot Info Summary ===============================
=> Grub2 (v2.00) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (hd0,msdos1)/boot/grub. It also embeds following components:
modules
---------------------------------------------------------------------------
biosdisk fshelp fat exfat ext2 ntfs ntfscomp part_msdos
---------------------------------------------------------------------------
sda1: __________________________________________________________________________
File system: vfat
Boot sector type: MSWIN4.1: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /efi/boot/bootx64.efi
/efi/boot/grubx64.efi /efi/boot/mmx64.efi
================================ 0 OS detected =================================
================================ Host/Hardware =================================
CPU architecture: 64-bit
Video: Alder Lake-N [Intel Graphics] from Intel Corporation
Live-session OS is Ubuntu 64-bit (Ubuntu 24.04.3 LTS, noble, x86_64)
===================================== UEFI =====================================
BIOS/UEFI firmware: MNTWLCPX.0020.2024.1028.0921(5.27) from ASUSTeK COMPUTER INC.
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot enabled according to mokutil - Please report this message to boot.repair@gmail.com.
BootCurrent: 0001
Timeout: 1 seconds
BootOrder: 0001
Boot0001* UEFI: SMI USB DISK 1100, Partition 1 PciRoot(0x0)/Pci(0x14,0x0)/USB(3,0)/HD(1,MBR,0xa832b83,0x800,0x1daf7f0)0000424f
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
Partitions info (1/3): _________________________________________________________
Partitions info (2/3): _________________________________________________________
Partitions info (3/3): _________________________________________________________
fdisk -l (filtered): ___________________________________________________________
Disk sda: 14.84 GiB, 15938355200 bytes, 31129600 sectors
Disk identifier: 0x0a832b83
Boot Start End Sectors Size Id Type
sda1 * 2048 31129583 31127536 14.8G c W95 FAT32 (LBA)
parted -lm (filtered): _________________________________________________________
sda:15.9GB:scsi:512:512:msdos:SMI USB DISK:;
1:1049kB:15.9GB:15.9GB:fat32::boot, lba;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
└─sda1 vfat C6C7-41BA 0a832b83-01 UBUNTU 24_0
Mount points (filtered): _______________________________________________________
Avail Use% Mounted on
/dev/sda1 8.9G 40% /cdrom
efivarfs 68.9K 62% /sys/firmware/efi/efivars
Mount options (filtered): ______________________________________________________
/dev/sda1 vfat ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
====================== sda1/boot/grub/grub.cfg (filtered) ======================
Try or Install Ubuntu
Ubuntu (safe graphics)
Boot from next volume
UEFI Firmware Settings
Test memory
==================== sda1: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
Suggested repair: ______________________________________________________________
The default repair of the Boot-Repair utility would not act on the boot.
What I’ve Tried:
- Restarting multiple times
- Ran boot-repair utility
Any help or suggestions are greatly appreciated
Thanks in advance
