As a word of caution: I am inexperienced and moved some partitions around when attempting to dual boot windows from Fedora, I didn’t take note of what I was doing and so only have my current situation to work from and nothing to work back towards. I know I should have backed up but here we are.
When I try to boot into my Fedora filesystem on my DELL Inspiron 7400 from the boot menu, I receive a No bootable devices found error.
I am currently using Fedora from a live USB.
Output of sudo fdisk -l:
Disk /dev/nvme0n1: 476.94 GiB, 512110190592 bytes, 1000215216 sectors
Disk model: KBG40ZNS512G NVMe KIOXIA 512GB
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 3A1641E9-8A61-4571-84A5-5A4B01FE1FEF
Device Start End Sectors Size Type
/dev/nvme0n1p1 2048 1230847 1228800 600M EFI System
/dev/nvme0n1p2 1230848 3327999 2097152 1G Linux filesystem
/dev/nvme0n1p3 3328000 481832959 478504960 228.2G Linux filesystem
/dev/nvme0n1p4 481832960 1000214527 518381568 247.2G Microsoft basic data
GPT PMBR size mismatch (3979243 != 240328703) will be corrected by write.
The backup GPT table is not on the end of the device.
Output of lsblk -f for the relevant drive:
NAME FSTYPE FSVER LABEL UUID FSAVAIL FSUSE% MOUNTPOINTS
nvme0n1
├─nvme0n1p1 exfat 1.0 E3FF-EA47
├─nvme0n1p2 ext4 1.0 98871ee5-1638-4cce-ad50-8668e8ddca31
├─nvme0n1p3 btrfs fedora_localhost-live 2f90f992-e665-42ac-b8d0-0452f56c3413
└─nvme0n1p4 exfat 1.0 67ED-F63F
nvme0n1p3 is my Fedora file system which I am attempting to recover.
nvme0n1p4 is a partition I created prior which was supposed to store Windows 10.
To show the contents of /etc/fstab I mounted nvme0n1p3 and other relevant virtual filesystems with
$ mount -t btrfs -o subvol=root,compress=zstd:1 UUID=2f90f992-e665-42ac-b8d0-0452f56c3413 /mnt
$ for dir in sys proc run dev ; do mount --bind /$dir /mnt/$dir ; done
and entered a chroot environment for the installed OS.
$ chroot /mnt
Current mounted partitions are
$ mount
/dev/nvme0n1p3 on / type btrfs (rw,relatime,seclabel,compress=zstd:1,ssd,space_cache=v2,subvolid=257,subvol=/root)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,size=3218672k,nr_inodes=819200,mode=755,inode64)
devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=4096k,nr_inodes=1048576,mode=755,inode64)
/dev/nvme0n1p2 on /boot type ext4 (rw,relatime,seclabel)
/dev/nvme0n1p3 on /home type btrfs (rw,relatime,seclabel,compress=zstd:1,ssd,space_cache=v2,subvolid=256,subvol=/home)
/boot/efi is not mounted. When I attempt to mount it I get
$ mount /boot/efi
mount: /boot/efi: wrong fs type, bad option, bad superblock on /dev/nvme0n1p1, missing codepage or helper program, or other error.
dmesg(1) may have more information after failed mount system call.
From the chroot environment, the contents of /etc/fstab is:
UUID=2f90f992-e665-42ac-b8d0-0452f56c3413 / btrfs subvol=root,compress=zstd:1 0 0
UUID=98871ee5-1638-4cce-ad50-8668e8ddca31 /boot ext4 defaults 1 2
UUID=E3FF-EA47 /boot/efi vfat umask=0077,shortname=winnt 0 2
UUID=2f90f992-e665-42ac-b8d0-0452f56c3413 /home btrfs subvol=home,compress=zstd:1 0 0
/dev/disk/by-id/usb-USB_SanDisk_3.2Gen1_01014b4983299e0e5a6c1f9f3d81280741420402818084341748ec522098bd28ad3d0000000000000000000034beffdcff0c520091558107b7ad0543-0:0 /mnt/usb-USB_SanDisk_3.2Gen1_01014b4983299e0e5a6c1f9f3d81280741420402818084341748ec522098bd28ad3d0000000000000000000034beffdcff0c520091558107b7ad0543-0:0 auto nosuid,nodev,nofail,x-gvfs-show 0 0
I have been trying to fix this issue for a while and have attempted the following:
-
nvme0n1p1(labelled as the EFI partition) was formatted atnftswhen the issue initially occurred, following online advice I reformatted this toexfatusing Gparted - Then I then manually mounted
nvme0n1p1at/boot/efi. - Finally I changed the UUID in
etc/fstabto match this. This is the current UUID shown fornvme0n1p1.
