I cannot get Kubuntu (any version) to load

I was running Kubuntu 25 without any problems. While watching a sport live stream there was a power cut, the machine doesn’t have a UPS.
When power was restored, the machine would not start without going to a safe graphics mode.

I downloaded the Boot Repair Disk tool, put it on a USB and booted to it. For several days I have tried to get it to generate a GRUB menu that would work. Once and only once I got a boot sequence that took me to a completely operational Kubuntu. I stupidly altered the GRUB configuration to try and make the boot option the default, only to completely lose that GRUB option.

When I boot in to Boot Repair Disk, the graphics are fine. All 3 screens are correctly identified and I am able to alter the display settings.

I have spent many days looking at this and have made no headway. It’s outside of what I know and I’m guessing. Now I’m hoping for something more intelligent than guesswork 🙂

This is the URL to a pastebin of the current boot https://paste.ubuntu.com/p/hgm5ymnnBg/. What else do you need to analyse the problem ?

The desired result is taht I boot in to Ubuntu 25.04 on sda3

Cheers

It turns out that pastebin isn’t what I thought it’d be. Below is the output from the Boot Repair Disk boot analysis.


============================== Boot Info Summary ===============================

 => No boot loader is installed in the MBR of /dev/sda.
 => Grub2 (v2.00) is installed in the MBR of /dev/sdb and looks at sector 1 of 
    the same hard drive for core.img. core.img is at this location and looks 
    for 
    (lvmid/dUoECj-C1cF-6xLW-KdZT-SXZp-Prrh-srjBS9/R2fI60-jTpU-Mfr8-MxJK-2RD2-2T
    KW-4xVYH7)/boot/grub. It also embeds following components:
    
    modules
    ---------------------------------------------------------------------------
    fshelp ext2 part_msdos diskfilter lvm biosdisk
    ---------------------------------------------------------------------------

sda1: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  FAT32
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        /efi/BOOT/bkpbootx64.efi /efi/BOOT/bootx64.efi 
                       /efi/BOOT/fbx64.efi /efi/BOOT/mmx64.efi 
                       /efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi 
                       /efi/ubuntu/shimx64.efi /efi/ubuntu/grub.cfg

sda2: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        /grub/grub.cfg

sda3: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Operating System:  Ubuntu 25.04
    Boot files:        /etc/fstab

sdb1: __________________________________________________________________________

    File system:       ext2
    Boot sector type:  -
    Boot sector info: 
    Operating System:  
    Boot files:        /grub/grub.cfg /grub/i386-pc/core.img

sdb2: __________________________________________________________________________

    File system:       Extended Partition
    Boot sector type:  -
    Boot sector info: 

sdb5: __________________________________________________________________________

    File system:       LVM2_member
    Boot sector type:  -
    Boot sector info: 

sdc: ___________________________________________________________________________

    File system:       iso9660
    Boot sector type:  Unknown
    Boot sector info: 
    Mounting failed:   mount: /mnt/BootInfo/FD/sdc: /dev/sdc already mounted or mount point busy.

sde: ___________________________________________________________________________

    File system:       iso9660
    Boot sector type:  Grub2 (v1.99-2.00)
    Boot sector info:  Grub2 (v1.99-2.00) is installed in the boot sector of 
                       sde and looks at sector 0 of the same hard drive for 
                       core.img, but core.img can not be found at this 
                       location.
    Mounting failed:   mount: /mnt/BootInfo/FD/sde: /dev/sde already mounted or mount point busy.


================================ 2 OS detected =================================

OS#1 (linux):   Ubuntu 25.04 on sda3
OS#2 (linux):   Ubuntu 20.04.3 LTS on mapper/ubuntu--vg-root

================================ Host/Hardware =================================

CPU architecture: 64-bit
Video: Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] Intel Corporation from Advanced Micro Devices, Inc. [AMD/ATI] Intel Corporation
Live-session OS is Linuxmint 64-bit (Linux Mint 21.2, victoria, x86_64)

===================================== UEFI =====================================

BIOS/UEFI firmware: F3(5.24) from American Megatrends International, LLC.
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot disabled (confirmed by mokutil).
BootCurrent: 0003
Timeout: 1 seconds
BootOrder: 0000,0002,0003,0004,0005,0006,0007
Boot0000* ubuntu    HD(1,GPT,5e136295-3997-4f79-b3f2-1ea08704e56b,0x800,0x100000)/File(EFIUBUNTUSHIMX64.EFI)
Boot0002* UEFI: TOSHIBA TransMemory PMAP, Partition 2   PciRoot(0x0)/Pci(0x1c,0x4)/Pci(0x0,0x0)/USB(4,0)/USB(3,0)/HD(2,GPT,656b6ccd-d4b0-492a-b137-530c16fb2447,0x8be6c0,0x27b0)..BO
Boot0003* UEFI: Lexar USB Flash Drive 1100  PciRoot(0x0)/Pci(0x1c,0x4)/Pci(0x0,0x0)/USB(0,0)/USB(0,0)/CDROM(1,0x23c,0x84c0)..BO
Boot0004* UEFI: HTTP IPv4 Intel(R) Ethernet Controller (3) I225-V   PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(d85ed3911597,1)/IPv4(0.0.0.00.0.0.0,0,0)/Uri()..BO
Boot0005* UEFI: PXE IPv4 Intel(R) Ethernet Controller (3) I225-V    PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(d85ed3911597,1)/IPv4(0.0.0.00.0.0.0,0,0)..BO
Boot0006* UEFI: HTTP IPv6 Intel(R) Ethernet Controller (3) I225-V   PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(d85ed3911597,1)/IPv6([::]:<->[::]:,0,0)/Uri()..BO
Boot0007* UEFI: PXE IPv6 Intel(R) Ethernet Controller (3) I225-V    PciRoot(0x0)/Pci(0x1c,0x2)/Pci(0x0,0x0)/MAC(d85ed3911597,1)/IPv6([::]:<->[::]:,0,0)..BO

f25b4b85c9e4fee1393d20b616ae229b   sda1/BOOT/bkpbootx64.efi
f25b4b85c9e4fee1393d20b616ae229b   sda1/BOOT/bootx64.efi
6c4ec35ced47a0bfa4cc96d3570d2e17   sda1/BOOT/fbx64.efi
9f09ebdacbdc7c46269f99c7754bbfd3   sda1/BOOT/mmx64.efi
f25b4b85c9e4fee1393d20b616ae229b   sda1/ubuntu/grubx64.efi
9f09ebdacbdc7c46269f99c7754bbfd3   sda1/ubuntu/mmx64.efi
211a377300f24895b42f5ce384344a0c   sda1/ubuntu/shimx64.efi

============================= Drive/Partition Info =============================

Disks info: ____________________________________________________________________

sda : is-GPT,   no-BIOSboot,    has---ESP,  not-usb,    not-mmc, has-os,    no-wind,    2048 sectors * 512 bytes
sdb : notGPT,   no-BIOSboot,    has-noESP,  not-usb,    not-mmc, no-os, no-wind,    2048 sectors * 512 bytes

Partitions info (1/3): _________________________________________________________

mapper/ubuntu--vg-root  : is-os,    64, apt-get,    signed grub-efi ,   grub2,  grub-install,   grubenv-ok, update-grub,    not-far
sda1    : no-os,    64, nopakmgr,   no-docgrub, nogrub, nogrubinstall,  no-grubenv, noupdategrub,   not-far
sda2    : no-os,    64, nopakmgr,   no-docgrub, nogrub, nogrubinstall,  grubenv-ok, noupdategrub,   end-after-100GB
sda3    : is-os,    64, apt-get,    grub1 , nogrub, nogrubinstall,  no-grubenv, noupdategrub,   end-after-100GB
sdb1    : no-os,    64, nopakmgr,   no-docgrub, nogrub, nogrubinstall,  grubenv-ng, noupdategrub,   not-far

Partitions info (2/3): _________________________________________________________

mapper/ubuntu--vg-root  : isnotESP, fstab-has-goodEFI,  no-nt,  no-winload, no-recov-nor-hid,   no-bmgr,    notwinboot, ext4
sda1    : is---ESP, part-has-no-fstab,  no-nt,  no-winload, no-recov-nor-hid,   no-bmgr,    notwinboot, vfat
sda2    : isnotESP, part-has-no-fstab,  no-nt,  no-winload, no-recov-nor-hid,   no-bmgr,    notwinboot, ext4
sda3    : isnotESP, fstab-has-goodEFI,  no-nt,  no-winload, no-recov-nor-hid,   no-bmgr,    notwinboot, ext4
sdb1    : isnotESP, part-has-no-fstab,  no-nt,  no-winload, no-recov-nor-hid,   no-bmgr,    notwinboot, ext2

Partitions info (3/3): _________________________________________________________

mapper/ubuntu--vg-root  : not--sepboot, with-boot,  fstab-has-goodBOOT, not-sep-usr,    with--usr,  fstab-without-usr,  std-grub.d, sda
sda1    : not--sepboot, no---boot,  part-has-no-fstab,  not-sep-usr,    no---usr,   part-has-no-fstab,  no--grub.d, sda
sda2    : is---sepboot, no---boot,  part-has-no-fstab,  not-sep-usr,    no---usr,   part-has-no-fstab,  no--grub.d, sda
sda3    : not--sepboot, with-boot,  fstab-without-boot, not-sep-usr,    with--usr,  fstab-without-usr,  no--grub.d, sda
sdb1    : is---sepboot, no---boot,  part-has-no-fstab,  not-sep-usr,    no---usr,   part-has-no-fstab,  no--grub.d, sdb

fdisk -l (filtered): ___________________________________________________________

Disk sda: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk identifier: 82CF99EE-0C35-4A38-ADFD-517578DC8A08
          Start        End    Sectors   Size Type
sda1        2048    1050623    1048576   512M EFI System
sda2     1050624 1983201155 1982150532 945.2G Linux filesystem
sda3  1983201280 3907028991 1923827712 917.4G Linux filesystem
Disk sdb: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk identifier: 0x0004a6e0
     Boot  Start        End    Sectors  Size Id Type
sdb1  *      2048     499711     497664  243M 83 Linux
sdb2       501758 3907028991 3906527234  1.8T  5 Extended
sdb5       501760 3907028991 3906527232  1.8T 8e Linux LVM
Disk mapper/ubuntu--vg-root: 916.4 GiB, 983975329792 bytes, 1921826816 sectors
Disk mapper/ubuntu--vg-swap_1: 14.92 GiB, 16022241280 bytes, 31293440 sectors
Disk sdc: 29.81 GiB, 32008830976 bytes, 62517248 sectors
Disk identifier: 0x14eb2669
     Boot   Start      End  Sectors  Size Id Type
sdc1  *          0  5138431  5138432  2.5G  0 Empty
sdc2           572     9067     8496  4.1M ef EFI (FAT-12/16/32)
sdc3       5140480 62517247 57376768 27.4G 83 Linux
Disk sde: 7.48 GiB, 8032092160 bytes, 15687680 sectors
Disk identifier: 656B6CCD-D4B0-492A-B135-530C16FB2447
       Start      End Sectors  Size Type
sde1       64  9168575 9168512  4.4G Microsoft basic data
sde2  9168576  9178735   10160    5M EFI System
sde3  9178736  9179335     600  300K Microsoft basic data
sde4  9183232 15685631 6502400  3.1G Linux filesystem

parted -lm (filtered): _________________________________________________________

sda:2000GB:scsi:512:4096:gpt:ATA ST2000DM008-2UB1:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:1015GB:1015GB:ext4::;
3:1015GB:2000GB:985GB:ext4::;
sdb:2000GB:scsi:512:4096:msdos:ATA ST2000VN004-2E41:;
1:1049kB:256MB:255MB:ext2::boot;
2:257MB:2000GB:2000GB:::;
5:257MB:2000GB:2000GB:::lvm;
sdc:32.0GB:scsi:512:512:msdos:Lexar USB Flash Drive:;
2:293kB:4643kB:4350kB:::esp;
3:2632MB:32.0GB:29.4GB:::;
sde:8032MB:scsi:512:512:gpt:TOSHIBA TransMemory:;
1:32.8kB:4694MB:4694MB::ISO9660:hidden, msftdata;
2:4694MB:4700MB:5202kB::Appended2:boot, esp;
3:4700MB:4700MB:307kB::Gap1:hidden, msftdata;
4:4702MB:8031MB:3329MB:ext4::;
mapper/ubuntu--vg-swap_1:16.0GB:dm:512:4096:loop:Linux device-mapper (linear):;
1:0.00B:16.0GB:16.0GB:linux-swap(v1)::;
mapper/ubuntu--vg-root:984GB:dm:512:4096:loop:Linux device-mapper (linear):;
1:0.00B:984GB:984GB:ext4::;

Free space >10MiB: ______________________________________________________________

sdc: 4.43MiB:2510MiB:2506MiB

blkid (filtered): ______________________________________________________________

NAME                  FSTYPE      UUID                                   PARTUUID                             LABEL                  PARTLABEL
sda                                                                                                                                  
├─sda1                vfat        3B5E-618D                              5e136295-3997-4f79-b3f2-1ea08704e56b                        EFI System Partition
├─sda2                ext4        53360307-f78d-4136-a654-9e4179ef7fc6   1d17f8fb-7703-491b-96cc-340d67a830bc                        
└─sda3                ext4        ca764d24-cade-4da4-bbd2-362667a02eaf   ee2df424-076d-4572-af62-779938bae1c9                        
sdb                                                                                                                                  
├─sdb1                ext2        ea9c1029-33c7-4ef8-b589-ccc6c462b621   0004a6e0-01                                                 
├─sdb2                                                                   0004a6e0-02                                                 
└─sdb5                LVM2_member QHkIuI-NHac-RrVR-ITdF-83Bn-vzvX-Df22Uy 0004a6e0-05                                                 
  ├─ubuntu--vg-root   ext4        a055a827-5a94-4bf2-abe1-2b8f69669712                                                               
  └─ubuntu--vg-swap_1 swap        3347dc63-2255-4788-bbc2-ca228f120046                                                               
sdc                   iso9660     2023-12-23-05-05-55-00                                                      Boot-Repair-Disk 64bit 
├─sdc1                iso9660     2023-12-23-05-05-55-00                 14eb2669-01                          Boot-Repair-Disk 64bit 
├─sdc2                vfat        8D6C-A9F8                              14eb2669-02                          ESP                    
└─sdc3                                                                   14eb2669-03                                                 
sdd                                                                                                                                  
sde                   iso9660     2025-04-17-06-51-07-00                                                      Kubuntu 25.04 amd64    
├─sde1                iso9660     2025-04-17-06-51-07-00                 656b6ccd-d4b0-492a-b134-530c16fb2447 Kubuntu 25.04 amd64    ISO9660
├─sde2                vfat        4A60-DF82                              656b6ccd-d4b0-492a-b137-530c16fb2447 ESP                    Appended2
├─sde3                                                                   656b6ccd-d4b0-492a-b136-530c16fb2447                        Gap1
└─sde4                ext4        fb138de4-3efd-4f88-a30e-eaea42d1912e   a3d37df1-89be-4163-82c9-61227efc7591 writable               

Mount points (filtered): _______________________________________________________

                             Avail Use% Mounted on
/dev/mapper/ubuntu--vg-root 346.4G  57% /mnt/boot-sav/mapper/ubuntu--vg-root
/dev/sda1                   500.9M   2% /mnt/boot-sav/sda1
/dev/sda2                   881.9G   0% /mnt/boot-sav/sda2
/dev/sda3                   702.4G  17% /mnt/boot-sav/sda3
/dev/sdb1                    22.1M  85% /mnt/boot-sav/sdb1
/dev/sdc1                        0 100% /cdrom
/dev/sde1                        0 100% /media/mint/Kubuntu 25.04 amd64
/dev/sde4                     2.8G   0% /media/mint/writable

Mount options (filtered): ______________________________________________________

/dev/mapper/ubuntu--vg-root ext4            rw,relatime
/dev/sda1                   vfat            rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
/dev/sda2                   ext4            rw,relatime
/dev/sda3                   ext4            rw,relatime
/dev/sdb1                   ext2            rw,relatime,stripe=4
/dev/sdc1                   iso9660         ro,noatime,nojoliet,check=s,map=n,blocksize=2048,iocharset=utf8
/dev/sde1                   iso9660         ro,nosuid,nodev,relatime,nojoliet,check=s,map=n,blocksize=2048,uid=999,gid=999,dmode=500,fmode=400,iocharset=utf8
/dev/sde4                   ext4            rw,nosuid,nodev,relatime,errors=remount-ro

============================== ls -R /dev/mapper/ ==============================

/dev/mapper:
control
ubuntu--vg-root
ubuntu--vg-swap_1

===================== sda1/efi/ubuntu/grub.cfg (filtered) ======================

search.fs_uuid 53360307-f78d-4136-a654-9e4179ef7fc6 root hd0,gpt2 
set prefix=($root)'/grub'
configfile $prefix/grub.cfg

======================== sda2/grub/grub.cfg (filtered) =========================

Ubuntu   a055a827-5a94-4bf2-abe1-2b8f69669712
Ubuntu 25.04 (25.04) (on sda3)   ca764d24-cade-4da4-bbd2-362667a02eaf
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings   uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###

==================== sda2: Location of files loaded by Grub ====================

           GiB - GB             File                                 Fragment(s)
 906.639766693 = 973.497036800  grub/grub.cfg                                  3
   0.771560669 = 0.828456960    vmlinuz-5.4.0-216-generic                      1
   0.827312469 = 0.888320000    initrd.img-5.4.0-216-generic                   1

========================== sda3/etc/fstab (filtered) ===========================

# <file system>                     <mount point>           <type>      <options>                                                       <dump>  <pass>
# / was on /dev/sda3 during installation
UUID=ca764d24-cade-4da4-bbd2-362667a02eaf       /               ext4        errors=remount-ro                                               0       1
# /boot/efi was on /dev/sda1 during installation
/swapfile                                       none                    swap        sw                                                              0       0
//wilma.mike-mac.net/DevBin             /usr/local/bin/remote_bin   cifs        x-systemd.automount,rw,vers=3.0,credentials=/root/.samba_credentials,uid=root,gid=root
mike@wilma:/home/mike/var/personal_development      /home/mike/mnt/development  fuse.sshfs  x-systemd.automount,rw,delay_connect,_netdev,user,idmap=user,transform_symlinks,identityfile=/home/mike/.ssh/id_rsa,allow_other,default_permissions,uid=1000,gid=1000 0 0
develop@wilma:/home/develop/public_html         /home/develop/mnt/development   fuse.sshfs  x-systemd.automount,rw,delay_connect,_netdev,user,idmap=user,transform_symlinks,identityfile=/home/develop/.ssh/id_rsa,allow_other,default_permissions,exec,uid=1001,gid=1001 0 0
//wilma.mike-mac.net/DBBackups              /home/develop/mnt/db_backups    cifs        noauto,x-systemd.automount,rw,vers=3.0,credentials=/root/.samba_credentials,uid=develop
develop@wilma:/usr/share/time_tracking          /home/develop/mnt/time_tracker  fuse.sshfs  x-systemd.automount,rw,reconnect,_netdev,user,idmap=user,transform_symlinks,identityfile=/home/develop/.ssh/id_rsa,allow_other,default_permissions,exec,uid=1001,gid=1001 0 0
develop@wilma:/usr/share/time_tracking          /home/mike/mnt/time_tracker fuse.sshfs  x-systemd.automount,rw,reconnect,_netdev,user,idmap=user,transform_symlinks,identityfile=/home/develop/.ssh/id_rsa,allow_other,default_permissions,exec,uid=1000,gid=1000 0 0
//wilma.mike-mac.net/homes              /home/mike/mnt/remote_home  cifs        _netdev,rw,vers=3.0,username=mike,uid=1000,gid=1000,dir_mode=0770,file_mode=0660,credentials=/root/.samba_credentials,
//wilma.mike-mac.net/homes              /home/mike/mnt/remote_home  cifs        noauto,x-systemd.automount,rw,vers=3.0,username=mike,uid=1000,gid=1000,dir_mode=0770,file_mode=0660,credentials=/root/.samba_credentials,
//wilma.mike-mac.net/homes              /home/develop/mnt/remote_home   cifs        noauto,x-systemd.automount,rw,vers=3.0,username=develop,uid=1000,gid=1000,dir_mode=0770,file_mode=0660,credentials=/root/.samba_credentials,
//wilma.mike-mac.net/Network_Share          /home/mike/var/shared_directory cifs        _netdev,rw,vers=3.0,username=mike,uid=1000,gid=1000,dir_mode=0770,file_mode=0660,credentials=/root/.samba_credentials,
//wilma.mike-mac.net/Network_Share          /home/mike/mnt/shared_directory cifs        noauto,x-systemd.automount,rw,vers=3.0,username=mike,uid=1000,gid=1000,dir_mode=0770,file_mode=0660,credentials=/root/.samba_credentials
//wilma.mike-mac.net/Home_Share             /home/mike/mnt/mandys_share cifs        noauto,x-systemd.automount,rw,vers=3.0,username=mike,uid=1000,gid=1000,dir_mode=0770,file_mode=0660,credentials=/root/.samba_credentials
//wilma.mike-mac.net/Network_Share          /home/develop/mnt/shared_directory  cifs    x-systemd.automount,rw,vers=3.0,username=mike,uid=1001,gid=1001,dir_mode=0770,file_mode=0660,credentials=/root/.samba_credentials
mike@wilma:/home/mike/gymnastics            /home/mike/mnt/gymnastics   fuse.sshfs  x-systemd.automount,rw,reconnect,_netdev,user,idmap=user,transform_symlinks,identityfile=/home/mike/.ssh/id_rsa,allow_other,default_permissions,exec,uid=1000,gid=1000 0 0
UUID=3B5E-618D  /boot/efi       vfat    defaults      0       1

==================== sda3: Location of files loaded by Grub ====================

           GiB - GB             File                                 Fragment(s)
1053.187496185 = 1130.851463168 boot/vmlinuz                                   2
1182.389694214 = 1269.581266944 boot/vmlinuz-6.14.0-33-generic                 1
1053.187496185 = 1130.851463168 boot/vmlinuz-6.14.0-34-generic                 2
1182.389694214 = 1269.581266944 boot/vmlinuz.old                               1
1444.548252106 = 1551.071875072 boot/initrd.img                                3
1444.406246185 = 1550.919397376 boot/initrd.img-6.14.0-33-generic              9
1444.548252106 = 1551.071875072 boot/initrd.img-6.14.0-34-generic              3
1444.406246185 = 1550.919397376 boot/initrd.img.old                            9

======================== sdb1/grub/grub.cfg (filtered) =========================

Ubuntu   a055a827-5a94-4bf2-abe1-2b8f69669712
### END /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_uefi-firmware ###

==================== sdb1: Location of files loaded by Grub ====================

           GiB - GB             File                                 Fragment(s)
   0.216956139 = 0.232954880    grub/grub.cfg                                 14
   0.157586098 = 0.169206784    grub/i386-pc/core.img                          2
   0.126481056 = 0.135808000    vmlinuz-4.4.0-121-generic                     13
   0.223663330 = 0.240156672    vmlinuz-4.4.0-177-generic                     12
   0.234848976 = 0.252167168    vmlinuz-4.4.0-178-generic                     16
   0.208621025 = 0.224005120    vmlinuz-4.4.0-179-generic                     13
   0.026968956 = 0.028957696    vmlinuz-4.4.0-31-generic                      15
   0.232221603 = 0.249346048    initrd.img-4.4.0-121-generic                  38
   0.238140106 = 0.255700992    initrd.img-4.4.0-177-generic                  53
   0.237371445 = 0.254875648    initrd.img-4.4.0-178-generic                  56
   0.238280296 = 0.255851520    initrd.img-4.4.0-179-generic                  171
   0.232929230 = 0.250105856    initrd.img-4.4.0-31-generic                   35

================================= User choice ==================================

Is there RAID on this computer? no


==================== blkid (filtered) before lvm activation ====================

/dev/mapper/ubuntu--vg-root: UUID="a055a827-5a94-4bf2-abe1-2b8f69669712" BLOCK_SIZE="4096" TYPE="ext4"
/dev/sda1: UUID="3B5E-618D" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="5e136295-3997-4f79-b3f2-1ea08704e56b"
/dev/sda2: UUID="53360307-f78d-4136-a654-9e4179ef7fc6" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="1d17f8fb-7703-491b-96cc-340d67a830bc"
/dev/sda3: UUID="ca764d24-cade-4da4-bbd2-362667a02eaf" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="ee2df424-076d-4572-af62-779938bae1c9"
/dev/sdb1: UUID="ea9c1029-33c7-4ef8-b589-ccc6c462b621" BLOCK_SIZE="1024" TYPE="ext2" PARTUUID="0004a6e0-01"
/dev/sdc1: BLOCK_SIZE="2048" UUID="2023-12-23-05-05-55-00" LABEL="Boot-Repair-Disk 64bit" TYPE="iso9660" PTUUID="14eb2669" PTTYPE="dos" PARTUUID="14eb2669-01"
/dev/mapper/ubuntu--vg-swap_1: UUID="3347dc63-2255-4788-bbc2-ca228f120046" TYPE="swap"
/dev/sdb5: UUID="QHkIuI-NHac-RrVR-ITdF-83Bn-vzvX-Df22Uy" TYPE="LVM2_member" PARTUUID="0004a6e0-05"
/dev/sde2: SEC_TYPE="msdos" LABEL_FATBOOT="ESP" LABEL="ESP" UUID="4A60-DF82" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="Appended2" PARTUUID="656b6ccd-d4b0-492a-b137-530c16fb2447"
/dev/sde1: BLOCK_SIZE="2048" UUID="2025-04-17-06-51-07-00" LABEL="Kubuntu 25.04 amd64" TYPE="iso9660" PARTLABEL="ISO9660" PARTUUID="656b6ccd-d4b0-492a-b134-530c16fb2447"
/dev/sde4: LABEL="writable" UUID="fb138de4-3efd-4f88-a30e-eaea42d1912e" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="a3d37df1-89be-4163-82c9-61227efc7591"
/dev/sdc2: SEC_TYPE="msdos" LABEL_FATBOOT="ESP" LABEL="ESP" UUID="8D6C-A9F8" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="14eb2669-02"
/dev/sde3: PARTLABEL="Gap1" PARTUUID="656b6ccd-d4b0-492a-b136-530c16fb2447"
/dev/sdc3: PARTUUID="14eb2669-03"


================================ LVM activation ================================

modprobe dm-mod  
vgscan --mknodes
  Found volume group "ubuntu-vg" using metadata type lvm2
vgchange -ay
  2 logical volume(s) in volume group "ubuntu-vg" now active
lvscan
  ACTIVE            '/dev/ubuntu-vg/root' [<916.40 GiB] inherit
  ACTIVE            '/dev/ubuntu-vg/swap_1' [14.92 GiB] inherit
blkid -g



Suggested repair: ______________________________________________________________

The default repair of the Boot-Repair utility would purge (in order to enable-lvm) and reinstall the grub-efi of
mapper/ubuntu--vg-root,
using the following options:  sda1/boot/efi
Additional repair would be performed: unhide-bootmenu-10s use-standard-efi-file restore-efi-backups

Final advice in case of suggested repair: ______________________________________

Please do not forget to make your UEFI firmware boot on the Ubuntu 20.04.3 LTS entry (sda1/efi/****/grub****.efi (**** will be updated in the final message) file) !