My Kubuntu 20.04 UEFI install on a Dell Precison T5810 suddenly stopped booting. The system appears to be stuck at the Dell logo screen.
I've tried the Boot-Repair-Disk
boot-repair-4ppa130 [20211126_1244]
============================= Boot Repair Summary ==============================
/usr/share/boot-sav/bs-cmd_terminal.sh: line 177: warning: command substitution: ignored null byte in input
Recommended repair: ____________________________________________________________
The default repair of the Boot-Repair utility will reinstall the grub-efi-amd64-signed of
sda2,
using the following options: sda1/boot/efi,
Additional repair will be performed: unhide-bootmenu-10s use-standard-efi-file
/boot/efi added in sda2/fstab
Mount sda1 on /mnt/boot-sav/sda2/boot/efi
Unhide GRUB boot menu in sda2/etc/default/grub
================= Reinstall the grub-efi-amd64-signed of sda2 ==================
grub-install --version
grub-install (GRUB) 2.04-1ubuntu26.13
efibootmgr -v from chroot before grub install
BootCurrent: 0007
Timeout: 1 seconds
BootOrder: 0000,0001,0002,0003,0004,0005,0006,0007
Boot0000* ubuntu HD(1,GPT,46dfc399-6a58-480f-beb5-ffda10122892,0x800,0x100000)/File(EFIubuntushimx64.efi)
Boot0001* Diskette Drive BBS(Floppy,VerbatimSTORE N GO,0x0)..BO
Boot0002* P0: INTEL SSDSC2BW240A3L BBS(HD,P0: INTEL SSDSC2BW240A3L,0x0)..BO
Boot0003* USB Storage Device BBS(USB,USB Storage Device,0x0)..BO
Boot0004* P0: PLDS DVD+/-RW DS-8ABSH BBS(CDROM,P0: PLDS DVD+/-RW DS-8ABSH ,0x0)..BO
Boot0005* Onboard NIC BBS(Network,Onboard NIC,0x0)..BO
Boot0006 UEFI: INTEL SSDSC2BW240A3L HD(1,GPT,46dfc399-6a58-480f-beb5-ffda10122892,0x800,0x100000)/File(EFIbootbootx64.efi)..BO
Boot0007* UEFI: VerbatimSTORE N GO PciRoot(0x0)/Pci(0x14,0x0)/USB(21,0)..BO
uname -r
5.3.0-28-generic
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot
Installing for x86_64-efi platform.
Installation finished. No error reported.
df /dev/sda1
mv /mnt/boot-sav/sda2/boot/efi/EFI/Boot/bootx64.efi /mnt/boot-sav/sda2/boot/efi/EFI/Boot/bkpbootx64.efi
cp /mnt/boot-sav/sda2/boot/efi/EFI/ubuntu/shimx64.efi /mnt/boot-sav/sda2/boot/efi/EFI/Boot/bootx64.efi
cp /mnt/boot-sav/sda2/boot/efi/EFI/ubuntu/grubx64.efi /mnt/boot-sav/sda2/boot/efi/EFI/Boot/
grub-install --efi-directory=/boot/efi --target=x86_64-efi --uefi-secure-boot
Installing for x86_64-efi platform.
Installation finished. No error reported.
efibootmgr -v from chroot after grub install
BootCurrent: 0007
Timeout: 1 seconds
BootOrder: 0000,0001,0002,0003,0004,0005,0006,0007
Boot0000* ubuntu HD(1,GPT,46dfc399-6a58-480f-beb5-ffda10122892,0x800,0x100000)/File(EFIubuntushimx64.efi)
Boot0001* Diskette Drive BBS(Floppy,VerbatimSTORE N GO,0x0)..BO
Boot0002* P0: INTEL SSDSC2BW240A3L BBS(HD,P0: INTEL SSDSC2BW240A3L,0x0)..BO
Boot0003* USB Storage Device BBS(USB,USB Storage Device,0x0)..BO
Boot0004* P0: PLDS DVD+/-RW DS-8ABSH BBS(CDROM,P0: PLDS DVD+/-RW DS-8ABSH ,0x0)..BO
Boot0005* Onboard NIC BBS(Network,Onboard NIC,0x0)..BO
Boot0006 UEFI: INTEL SSDSC2BW240A3L HD(1,GPT,46dfc399-6a58-480f-beb5-ffda10122892,0x800,0x100000)/File(EFIbootbootx64.efi)..BO
Boot0007* UEFI: VerbatimSTORE N GO PciRoot(0x0)/Pci(0x14,0x0)/USB(21,0)..BO
Warning: NVram was not modified.
chroot /mnt/boot-sav/sda2 update-grub
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.11.0-40-generic
Found initrd image: /boot/initrd.img-5.11.0-40-generic
Found linux image: /boot/vmlinuz-5.11.0-38-generic
Found initrd image: /boot/initrd.img-5.11.0-38-generic
Found linux image: /boot/vmlinuz-5.11.0-37-generic
Found initrd image: /boot/initrd.img-5.11.0-37-generic
Adding boot menu entry for UEFI Firmware Settings
Unhide GRUB boot menu in sda2/boot/grub/grub.cfg
Boot successfully repaired.
You can now reboot your computer.
Please do not forget to make your UEFI firmware boot on the Ubuntu 20.04.3 LTS entry (sda1/EFI/ubuntu/shimx64.efi file) !
============================ Boot Info After Repair ============================
=> No boot loader is installed in the MBR of /dev/sda.
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/grubx64.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: Ubuntu 20.04.3 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /etc/default/grub
sdb: ___________________________________________________________________________
File system: vfat
Boot sector type: SYSLINUX 6.04 6.04-pre2-11-gbf6db5b4*..........................................G....2....0..........
Boot sector info: Syslinux looks at sector 2003800 of /dev/sdb for its
second stage. SYSLINUX is installed in the directory.
No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /syslinux.cfg
/efi/BOOT/grubx64.efi /ldlinux.sys
================================ 1 OS detected =================================
OS#1: Ubuntu 20.04.3 LTS on sda2
============================ Architecture/Host Info ============================
CPU architecture: 64-bit
Live-session OS is Ubuntu 64-bit (Boot-Repair-Disk 64bit 20200604, bionic, x86_64)
===================================== UEFI =====================================
BIOS is EFI-compatible, and is setup in EFI-mode for this live-session.
SecureBoot disabled.
efibootmgr -v
BootCurrent: 0007
Timeout: 1 seconds
BootOrder: 0000,0001,0002,0003,0004,0005,0006,0007
Boot0000* ubuntu HD(1,GPT,46dfc399-6a58-480f-beb5-ffda10122892,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)
Boot0001* Diskette Drive BBS(Floppy,VerbatimSTORE N GO,0x0)..BO
Boot0002* P0: INTEL SSDSC2BW240A3L BBS(HD,P0: INTEL SSDSC2BW240A3L,0x0)..BO
Boot0003* USB Storage Device BBS(USB,USB Storage Device,0x0)..BO
Boot0004* P0: PLDS DVD+/-RW DS-8ABSH BBS(CDROM,P0: PLDS DVD+/-RW DS-8ABSH ,0x0)..BO
Boot0005* Onboard NIC BBS(Network,Onboard NIC,0x0)..BO
Boot0006 UEFI: INTEL SSDSC2BW240A3L HD(1,GPT,46dfc399-6a58-480f-beb5-ffda10122892,0x800,0x100000)/File(EFI\boot\bootx64.efi)..BO
Boot0007* UEFI: VerbatimSTORE N GO PciRoot(0x0)/Pci(0x14,0x0)/USB(21,0)..BO
This session has been detected as 'live' because /proc/cmdline contains (boot=casper)
This session has been detected as 'live' because df -Th / contains overlay
85fa9d77b929ec4231aba29476574eb6 sda1/BOOT/fbx64.efi
469e608783843a701d172242f016c79c sda1/BOOT/mmx64.efi
fa1bf1a7f90a852abe0bdbd089b7f1b0 sda1/ubuntu/grubx64.efi
469e608783843a701d172242f016c79c sda1/ubuntu/mmx64.efi
728124f6ec8e22fbdbe7034812c81b95 sda1/ubuntu/shimx64.efi
728124f6ec8e22fbdbe7034812c81b95 sda1/BOOT/BOOTX64.efi
============================= Drive/Partition Info =============================
Disks info: ____________________________________________________________________
sda : is-GPT, no-BIOSboot, has---ESP, not-usb, not-mmc, has-os, 2048 sectors * 512 bytes
Partitions info (1/3): _________________________________________________________
sda1 : no-os, 32, nopakmgr, no-docgrub, nogrub, nogrubinstall, no-grubenv, noupdategrub, not-far
sda2 : is-os, 64, apt-get, signed grub-pc grub-efi , grub2, grub-install, grubenv-ok, update-grub, farbios
Partitions info (2/3): _________________________________________________________
sda1 : is---ESP, part-has-no-fstab, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
sda2 : isnotESP, fstab-has-goodEFI, no-nt, no-winload, no-recov-nor-hid, no-bmgr, notwinboot
Partitions info (3/3): _________________________________________________________
sda1 : not-sepboot, no-boot, part-has-no-fstab, not-sep-usr, no---usr, part-has-no-fstab, std-grub.d, sda
sda2 : not-sepboot, with-boot, fstab-without-boot, not-sep-usr, with--usr, fstab-without-usr, std-grub.d, sda
fdisk -l (filtered): ___________________________________________________________
Disk sda: 223.6 GiB, 240057409536 bytes, 468862128 sectors
Disk identifier: 2F28D532-79B2-44F0-9CB1-AA892EFB7353
Start End Sectors Size Type
sda1 2048 1050623 1048576 512M EFI System
sda2 1050624 468860927 467810304 223.1G Linux filesystem
Disk sdb: 7.3 GiB, 7864320000 bytes, 15360000 sectors
Disk identifier: 0x20ac7dda
Boot Start End Sectors Size Id Type
sdb1 3224498923 3657370039 432871117 206.4G 7 HPFS/NTFS/exFAT
sdb2 3272020941 5225480974 1953460034 931.5G 16 Hidden FAT16
sdb3 0 0 0 0B 6f unknown
sdb4 50200576 974536369 924335794 440.8G 0 Empty
Partition table entries are not in disk order.
Disk zram0: 2 GiB, 2099744768 bytes, 512633 sectors
Disk zram1: 2 GiB, 2099744768 bytes, 512633 sectors
Disk zram2: 2 GiB, 2099744768 bytes, 512633 sectors
Disk zram3: 2 GiB, 2099744768 bytes, 512633 sectors
Disk zram4: 2 GiB, 2099744768 bytes, 512633 sectors
Disk zram5: 2 GiB, 2099744768 bytes, 512633 sectors
Disk zram6: 2 GiB, 2099744768 bytes, 512633 sectors
Disk zram7: 2 GiB, 2099744768 bytes, 512633 sectors
parted -lm (filtered): _________________________________________________________
sda:240GB:scsi:512:512:gpt:ATA INTEL SSDSC2BW24:;
1:1049kB:538MB:537MB:fat32:EFI System Partition:boot, esp;
2:538MB:240GB:240GB:ext4::;
sdb:7864MB:scsi:512:512:loop:Verbatim STORE N GO:;
1:0.00B:7864MB:7864MB:fat32::;
zram5:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
zram3:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
zram1:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
zram6:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
zram4:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
zram2:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
zram0:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
zram7:2100MB:unknown:4096:4096:loop:Unknown:;
1:0.00B:2100MB:2100MB:linux-swap(v1)::;
blkid (filtered): ______________________________________________________________
NAME FSTYPE UUID PARTUUID LABEL PARTLABEL
sda
├─sda1 vfat 04F4-4A6B 46dfc399-6a58-480f-beb5-ffda10122892 EFI System Partition
└─sda2 ext4 2c95e78c-070a-4308-bc21-e56e68be8992 98efa4c2-1c8f-439a-b89d-0c29eecd1756
sdb vfat 5059-2494
zram0
zram1
zram2
zram3
zram4
zram5
zram6
zram7
df (filtered): _________________________________________________________________
Avail Use% Mounted on
sda1 503.2M 2% /mnt/boot-sav/sda1
sda2 191.5G 7% /mnt/boot-sav/sda2
sdb 6.4G 13% /cdrom
Mount options: __________________________________________________________________
sda1 rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
sda2 rw,relatime
sdb ro,noatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro
===================== sda1/efi/ubuntu/grub.cfg (filtered) ======================
search.fs_uuid 2c95e78c-070a-4308-bc21-e56e68be8992 root hd0,gpt2
set prefix=($root)'/boot/grub'
configfile $prefix/grub.cfg
====================== sda2/boot/grub/grub.cfg (filtered) ======================
Ubuntu 2c95e78c-070a-4308-bc21-e56e68be8992
Ubuntu, with Linux 5.11.0-40-generic 2c95e78c-070a-4308-bc21-e56e68be8992
Ubuntu, with Linux 5.11.0-38-generic 2c95e78c-070a-4308-bc21-e56e68be8992
Ubuntu, with Linux 5.11.0-37-generic 2c95e78c-070a-4308-bc21-e56e68be8992
### END /etc/grub.d/30_os-prober ###
UEFI Firmware Settings uefi-firmware
### END /etc/grub.d/30_uefi-firmware ###
========================== sda2/etc/fstab (filtered) ===========================
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda2 during installation
UUID=2c95e78c-070a-4308-bc21-e56e68be8992 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda1 during installation
/swapfile none swap sw 0 0
UUID=04F4-4A6B /boot/efi vfat defaults 0 1
======================= sda2/etc/default/grub (filtered) =======================
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
==================== sda2: Location of files loaded by Grub ====================
GiB - GB File Fragment(s)
0.500984192 = 0.537927680 boot/grub/grub.cfg 1
10.121284485 = 10.867646464 boot/vmlinuz 1
4.979160309 = 5.346332672 boot/vmlinuz-5.11.0-37-generic 1
69.916667938 = 75.072450560 boot/vmlinuz-5.11.0-38-generic 1
10.121284485 = 10.867646464 boot/vmlinuz-5.11.0-40-generic 1
69.916667938 = 75.072450560 boot/vmlinuz.old 1
10.560054779 = 11.338772480 boot/initrd.img 2
6.258510590 = 6.720024576 boot/initrd.img-5.11.0-37-generic 5
70.323657990 = 75.509452800 boot/initrd.img-5.11.0-38-generic 2
10.560054779 = 11.338772480 boot/initrd.img-5.11.0-40-generic 2
70.323657990 = 75.509452800 boot/initrd.img.old 2
===================== sda2: ls -l /etc/grub.d/ (filtered) ======================
-rwxr-xr-x 1 root root 18151 Aug 12 09:18 10_linux
-rwxr-xr-x 1 root root 42359 Jan 13 2021 10_linux_zfs
-rwxr-xr-x 1 root root 12894 Jan 13 2021 20_linux_xen
-rwxr-xr-x 1 root root 12059 Jan 13 2021 30_os-prober
-rwxr-xr-x 1 root root 1424 Jan 13 2021 30_uefi-firmware
-rwxr-xr-x 1 root root 214 Jan 13 2021 40_custom
-rwxr-xr-x 1 root root 216 Jan 13 2021 41_custom
====================== sdb/boot/grub/grub.cfg (filtered) =======================
Boot-Repair-Disk session
Boot-Repair-Disk session (failsafe)
========================= sdb/syslinux.cfg (filtered) ==========================
default menu.c32
prompt 0
menu title UNetbootin
timeout 100
label unetbootindefault
menu label Default
kernel /ubnkern
append initrd=/ubninit file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash ---
label ubnentry0
menu label ^Help
kernel /ubnkern
append initrd=/ubninit
label ubnentry1
menu label ^64bit session
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash ---
label ubnentry2
menu label ^64bit session (failsafe)
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/lubuntu.seed boot=casper noapic noapm nodma nomce nolapic nomodeset nosmp vga=normal ---
label ubnentry3
menu label Boot-Repair-Disk session
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/lubuntu.seed boot=casper quiet splash --
label ubnentry4
menu label Boot-Repair-Disk session (failsafe)
kernel /casper/vmlinuz
append initrd=/casper/initrd file=/cdrom/preseed/lubuntu.seed boot=casper noapic noapm nodma nomce nolapic nomodeset nosmp vga=normal --
==================== sdb: Location of files loaded by Grub =====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
================== sdb: Location of files loaded by Syslinux ===================
GiB - GB File Fragment(s)
?? = ?? syslinux.cfg 1
?? = ?? ldlinux.sys 1
?? = ?? ldlinux.c32 1
=============== sdb: Version of COM32(R) files used by Syslinux ================
ldlinux.c32 : not a COM32/COM32R module
=============================== StdErr Messages ================================
File descriptor 63 (pipe:[80265]) leaked on lvs invocation. Parent PID 6237: /bin/bash
Any ideas or recommendations?
