Hi,

The KDE Neon iso image 20200827-0945 fails to boot on my machine (a ThinkPad E550). I have verified that the USB sticks I have been using (two different ones, one from Toshiba and another from SanDisk) boot with other isos. I have tried switching to other virtual consoles, but the computer displays nothing but a blank screen although the light on the Toshiba USB stick flashes away repeatedly (the SanDisk doesn't have an LED). I've also tried with both UEFI Only enabled (no CSM), and both UEFI and BIOS with CSM enabled, as well as writing the image with ddrescue, dd and RosaImageWriter (the latter recommended by KDE Neon).

EDIT: I forgot to mention that I also tried the Testing Edition, with the same result.

Below is my dmesg in case that helps:

Code: Select all

[    0.000000] microcode: microcode updated early to revision 0x2f, date = 2019-11-12
[    0.000000] Linux version 5.8.3-2-MANJARO (builduser@LEGION) (gcc (GCC) 10.2.0, GNU ld (GNU Binutils) 2.35) #1 SMP PREEMPT Sat Aug 22 12:35:25 UTC 2020
[    0.000000] Command line: BOOT_IMAGE=/@/boot/vmlinuz-5.8-x86_64 root=UUID=a7a05bb5-5ecc-4ad1-98e3-cb2c9e3140c9 rw rootflags=subvol=@ quiet apparmor=1 security=apparmor udev.log_priority=3
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Hygon HygonGenuine
[    0.000000]   Centaur CentaurHauls
[    0.000000]   zhaoxin   Shanghai 
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x0000000000057fff] usable
[    0.000000] BIOS-e820: [mem 0x0000000000058000-0x0000000000058fff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000059000-0x000000000009bfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009c000-0x000000000009cfff] reserved
[    0.000000] BIOS-e820: [mem 0x000000000009d000-0x000000000009dfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009e000-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000cbd9dfff] usable
[    0.000000] BIOS-e820: [mem 0x00000000cbd9e000-0x00000000cbf9dfff] type 20
[    0.000000] BIOS-e820: [mem 0x00000000cbf9e000-0x00000000ccdfefff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000ccdff000-0x00000000ccf7efff] ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000ccf7f000-0x00000000ccffefff] ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000ccfff000-0x00000000ccffffff] usable
[    0.000000] BIOS-e820: [mem 0x00000000f80f8000-0x00000000f80f8fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000032effffff] usable
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] efi: EFI v2.31 by Lenovo
[    0.000000] efi: ACPI=0xccffe000 ACPI 2.0=0xccffe014 SMBIOS=0xccdfe000 ESRT=0xcc158000
[    0.000000] SMBIOS 2.7 present.
[    0.000000] DMI: LENOVO 20DFCTO1WW/20DFCTO1WW, BIOS J5ET63WW (1.34 ) 09/26/2018
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 1995.482 MHz processor
[    0.000111] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000116] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000132] last_pfn = 0x32f000 max_arch_pfn = 0x400000000
[    0.000143] MTRR default type: write-back
[    0.000145] MTRR fixed ranges enabled:
[    0.000148]   00000-9FFFF write-back
[    0.000151]   A0000-BFFFF uncachable
[    0.000154]   C0000-FFFFF write-protect
[    0.000155] MTRR variable ranges enabled:
[    0.000160]   0 base 00E0000000 mask 7FE0000000 uncachable
[    0.000163]   1 base 00D0000000 mask 7FF0000000 uncachable
[    0.000165]   2 base 00CE000000 mask 7FFE000000 uncachable
[    0.000167]   3 base 00CD000000 mask 7FFF000000 uncachable
[    0.000169]   4 disabled
[    0.000171]   5 disabled
[    0.000172]   6 disabled
[    0.000174]   7 disabled
[    0.000175]   8 disabled
[    0.000176]   9 disabled
[    0.000879] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT 
[    0.001242] last_pfn = 0xcd000 max_arch_pfn = 0x400000000
[    0.026460] esrt: Reserving ESRT space from 0x00000000cc158000 to 0x00000000cc158038.
[    0.026482] check: Scanning 1 areas for low memory corruption
[    0.026493] Using GB pages for direct mapping
[    0.027666] Secure boot could not be determined
[    0.027669] RAMDISK: [mem 0x366cd000-0x3735dfff]
[    0.027682] ACPI: Early table checksum verification disabled
[    0.027689] ACPI: RSDP 0x00000000CCFFE014 000024 (v02 LENOVO)
[    0.027698] ACPI: XSDT 0x00000000CCFFE1C0 0000EC (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027712] ACPI: FACP 0x00000000CCFF9000 00010C (v05 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027726] ACPI: DSDT 0x00000000CCFE3000 01130B (v01 LENOVO TP-J5    00001340 INTL 20120711)
[    0.027735] ACPI: FACS 0x00000000CCF68000 000040
[    0.027742] ACPI: ASF! 0x00000000CCFFD000 0000A5 (v32 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027750] ACPI: HPET 0x00000000CCFFC000 000038 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027758] ACPI: ECDT 0x00000000CCFFB000 000052 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027765] ACPI: APIC 0x00000000CCFF8000 000098 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027773] ACPI: MCFG 0x00000000CCFF7000 00003C (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027781] ACPI: SSDT 0x00000000CCFF6000 000033 (v01 LENOVO TP-SSDT1 00000100 INTL 20120711)
[    0.027789] ACPI: SSDT 0x00000000CCFF5000 000486 (v01 LENOVO TP-SSDT2 00000200 INTL 20120711)
[    0.027797] ACPI: SSDT 0x00000000CCFE2000 000922 (v01 LENOVO SataAhci 00001000 INTL 20120711)
[    0.027805] ACPI: SSDT 0x00000000CCFE1000 00062A (v01 LENOVO Cpu0Ist  00003000 INTL 20120711)
[    0.027813] ACPI: SSDT 0x00000000CCFE0000 000B74 (v02 LENOVO CpuSsdt  00003000 INTL 20120711)
[    0.027821] ACPI: SSDT 0x00000000CCFDF000 000369 (v02 LENOVO CtdpB    00001000 INTL 20120711)
[    0.027829] ACPI: SSDT 0x00000000CCFDD000 001477 (v01 LENOVO SaSsdt   00003000 INTL 20120711)
[    0.027837] ACPI: SSDT 0x00000000CCFDC000 000394 (v02 LENOVO CppcTabl 00001000 INTL 20120711)
[    0.027845] ACPI: PCCT 0x00000000CCFDB000 00006E (v05 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027853] ACPI: SSDT 0x00000000CCFDA000 000AC4 (v02 LENOVO Cpc_Tabl 00001000 INTL 20120711)
[    0.027860] ACPI: TCPA 0x00000000CCFD9000 000032 (v02 PTL    LENOVO   06040000 LNVO 00000001)
[    0.027869] ACPI: SSDT 0x00000000CCFD8000 0006A5 (v01 Intel_ TpmTable 00001000 INTL 20120711)
[    0.027877] ACPI: UEFI 0x00000000CCFD7000 000042 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027884] ACPI: MSDM 0x00000000CCEB2000 000055 (v03 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027892] ACPI: BATB 0x00000000CCFD6000 000046 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027900] ACPI: FPDT 0x00000000CCFD5000 000064 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027907] ACPI: UEFI 0x00000000CCFD4000 0002F6 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027915] ACPI: BGRT 0x00000000CCFD3000 000038 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027923] ACPI: DMAR 0x00000000CCFD2000 0000B0 (v01 LENOVO TP-J5    00001340 PTEC 00000002)
[    0.027941] ACPI: Local APIC address 0xfee00000
[    0.028021] No NUMA configuration found
[    0.028023] Faking a node at [mem 0x0000000000000000-0x000000032effffff]
[    0.028033] NODE_DATA(0) allocated [mem 0x32effc000-0x32effffff]
[    0.028114] Zone ranges:
[    0.028117]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.028120]   DMA32    [mem 0x0000000001000000-0x00000000ffffffff]
[    0.028123]   Normal   [mem 0x0000000100000000-0x000000032effffff]
[    0.028126]   Device   empty
[    0.028128] Movable zone start for each node
[    0.028130] Early memory node ranges
[    0.028133]   node   0: [mem 0x0000000000001000-0x0000000000057fff]
[    0.028135]   node   0: [mem 0x0000000000059000-0x000000000009bfff]
[    0.028137]   node   0: [mem 0x000000000009d000-0x000000000009dfff]
[    0.028139]   node   0: [mem 0x0000000000100000-0x00000000cbd9dfff]
[    0.028142]   node   0: [mem 0x00000000ccfff000-0x00000000ccffffff]
[    0.028144]   node   0: [mem 0x0000000100000000-0x000000032effffff]
[    0.028629] Zeroed struct page in unavailable ranges: 21190 pages
[    0.028632] Initmem setup node 0 [mem 0x0000000000001000-0x000000032effffff]
[    0.028636] On node 0 totalpages: 3124538
[    0.028639]   DMA zone: 64 pages used for memmap
[    0.028641]   DMA zone: 23 pages reserved
[    0.028643]   DMA zone: 3995 pages, LIFO batch:0
[    0.028708]   DMA32 zone: 12983 pages used for memmap
[    0.028711]   DMA32 zone: 830879 pages, LIFO batch:63
[    0.042141]   Normal zone: 35776 pages used for memmap
[    0.042144]   Normal zone: 2289664 pages, LIFO batch:63
[    0.079100] Reserving Intel graphics memory at [mem 0xce000000-0xcfffffff]
[    0.079222] ACPI: PM-Timer IO Port: 0x1808
[    0.079227] ACPI: Local APIC address 0xfee00000
[    0.079244] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[    0.079246] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[    0.079263] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-39
[    0.079269] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.079273] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.079276] ACPI: IRQ0 used by override.
[    0.079279] ACPI: IRQ9 used by override.
[    0.079285] Using ACPI (MADT) for SMP configuration information
[    0.079289] ACPI: HPET id: 0x8086a301 base: 0xfed00000
[    0.079307] e820: update [mem 0xc4bee000-0xc4c32fff] usable ==> reserved
[    0.079327] TSC deadline timer available
[    0.079330] smpboot: Allowing 8 CPUs, 4 hotplug CPUs
[    0.079371] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.079375] PM: hibernation: Registered nosave memory: [mem 0x00058000-0x00058fff]
[    0.079379] PM: hibernation: Registered nosave memory: [mem 0x0009c000-0x0009cfff]
[    0.079383] PM: hibernation: Registered nosave memory: [mem 0x0009e000-0x0009ffff]
[    0.079385] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[    0.079389] PM: hibernation: Registered nosave memory: [mem 0xc4bee000-0xc4c32fff]
[    0.079394] PM: hibernation: Registered nosave memory: [mem 0xcbd9e000-0xcbf9dfff]
[    0.079396] PM: hibernation: Registered nosave memory: [mem 0xcbf9e000-0xccdfefff]
[    0.079397] PM: hibernation: Registered nosave memory: [mem 0xccdff000-0xccf7efff]
[    0.079399] PM: hibernation: Registered nosave memory: [mem 0xccf7f000-0xccffefff]
[    0.079403] PM: hibernation: Registered nosave memory: [mem 0xcd000000-0xcdffffff]
[    0.079405] PM: hibernation: Registered nosave memory: [mem 0xce000000-0xcfffffff]
[    0.079407] PM: hibernation: Registered nosave memory: [mem 0xd0000000-0xf80f7fff]
[    0.079409] PM: hibernation: Registered nosave memory: [mem 0xf80f8000-0xf80f8fff]
[    0.079410] PM: hibernation: Registered nosave memory: [mem 0xf80f9000-0xfed1bfff]
[    0.079412] PM: hibernation: Registered nosave memory: [mem 0xfed1c000-0xfed1ffff]
[    0.079414] PM: hibernation: Registered nosave memory: [mem 0xfed20000-0xffffffff]
[    0.079419] [mem 0xd0000000-0xf80f7fff] available for PCI devices
[    0.079421] Booting paravirtualized kernel on bare hardware
[    0.079428] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370452778343963 ns
[    0.094582] setup_percpu: NR_CPUS:320 nr_cpumask_bits:320 nr_cpu_ids:8 nr_node_ids:1
[    0.095506] percpu: Embedded 56 pages/cpu s192512 r8192 d28672 u262144
[    0.095523] pcpu-alloc: s192512 r8192 d28672 u262144 alloc=1*2097152
[    0.095526] pcpu-alloc: [0] 0 1 2 3 4 5 6 7
[    0.095582] Built 1 zonelists, mobility grouping on.  Total pages: 3075692
[    0.095584] Policy zone: Normal
[    0.095587] Kernel command line: BOOT_IMAGE=/@/boot/vmlinuz-5.8-x86_64 root=UUID=a7a05bb5-5ecc-4ad1-98e3-cb2c9e3140c9 rw rootflags=subvol=@ quiet apparmor=1 security=apparmor udev.log_priority=3
[    0.099527] Dentry cache hash table entries: 2097152 (order: 12, 16777216 bytes, linear)
[    0.101388] Inode-cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
[    0.101611] mem auto-init: stack:byref_all, heap alloc:on, heap free:off
[    0.192479] Memory: 12088412K/12498152K available (14339K kernel code, 1480K rwdata, 4652K rodata, 1648K init, 3016K bss, 409740K reserved, 0K cma-reserved)
[    0.192495] random: get_random_u64 called from __kmem_cache_create+0x3e/0x600 with crng_init=0
[    0.192865] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[    0.192900] Kernel/User page tables isolation: enabled
[    0.192954] ftrace: allocating 40155 entries in 157 pages
[    0.235311] ftrace: allocated 157 pages with 5 groups
[    0.235590] rcu: Preemptible hierarchical RCU implementation.
[    0.235592] rcu:    RCU dyntick-idle grace-period acceleration is enabled.
[    0.235594] rcu:    RCU restricting CPUs from NR_CPUS=320 to nr_cpu_ids=8.
[    0.235596] rcu:    RCU priority boosting: priority 1 delay 500 ms.
[    0.235598]    Trampoline variant of Tasks RCU enabled.
[    0.235599]    Rude variant of Tasks RCU enabled.
[    0.235601] rcu: RCU calculated value of scheduler-enlistment delay is 30 jiffies.
[    0.235604] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8
[    0.245074] NR_IRQS: 20736, nr_irqs: 760, preallocated irqs: 16
[    0.245851] Console: colour dummy device 80x25
[    0.245860] printk: console [tty0] enabled
[    0.245905] ACPI: Core revision 20200528
[    0.246353] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 133484882848 ns
[    0.246372] APIC: Switch to symmetric I/O mode setup
[    0.246376] DMAR: Host address width 39
[    0.246379] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[    0.246392] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap 1c0000c40660462 ecap 7e1ff0505e
[    0.246394] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[    0.246402] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c20660462 ecap f010da
[    0.246404] DMAR: RMRR base: 0x000000ccb1c000 end: 0x000000ccb32fff
[    0.246407] DMAR: RMRR base: 0x000000cd800000 end: 0x000000cfffffff
[    0.246411] DMAR: [Firmware Bug]: No firmware reserved region can cover this RMRR [0x00000000cd800000-0x00000000cfffffff], contact BIOS vendor for fixes
[    0.246414] DMAR: [Firmware Bug]: Your BIOS is broken; bad RMRR [0x00000000cd800000-0x00000000cfffffff]
               BIOS vendor: LENOVO; Ver: J5ET63WW (1.34 ); Product Version: ThinkPad E550
[    0.246419] DMAR-IR: IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
[    0.246421] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[    0.246423] DMAR-IR: x2apic is disabled because BIOS sets x2apic opt out bit.
[    0.246424] DMAR-IR: Use 'intremap=no_x2apic_optout' to override the BIOS setting.
[    0.247381] DMAR-IR: Enabled IRQ remapping in xapic mode


I downloaded user edition last night and it was fine on my desktop (I always use Rosa), I'll try again now.

Edit: No matter, mine's the same version as yours.

I "solved" this problem by downloading Distrowatch's archived torrent of 20200723-1119 (thank you Distrowatch), but as far as I know, the problem with the image listed above persists.

Hi!

I have had a similar problem since KDE Neon 20.04 was released. I think I've tried every version of the ISO and I couldn't boot from the USB.

I must say that all this is with the UEFI mode activated. If I change it in the BIOS to Legacy mode, the USB stick works without problem.

Another thing I must add, Kde Neon 18.04 and Ubuntu 20.04 boot correctly from the USB with the UEFI mode enabled.

ubaygd: What machine do you have? What did you write the ISO with? If just Rosa, try something else mainstream like etcher.

This should be a bug report if we can narrow it down and it''s not just isolated cases.

robgriff444 wrote:ubaygd: What machine do you have? What did you write the ISO with? If just Rosa, try something else mainstream like etcher.

This should be a bug report if we can narrow it down and it''s not just isolated cases.

I have a Lenovo X220. I used Gnome Disk Utility, dd and Rosa for write the ISO.

I just downloaded latest Neon user, wrote it with Rosa and it booted in UEFI on my ASUS motherboard so there is something else at play here. I suggest you make a bug report with KDE at http://bugs.kde.org and maybe raise something with Lenovo?

I'll do that (and maybe mention that from the KDE Neon website and even kde.org, the bug tracker isn't easy to find).

Thanks.

jeffrollin wrote:I "solved" this problem by downloading Distrowatch's archived torrent of 20200723-1119 (thank you Distrowatch), but as far as I know, the problem with the image listed above persists.

Hi jeffrollin,
could you please tell me where you found this archived torrent, or even better, post the link?
Thanks

I have the same problem as you have: since a few days I cannot boot anymore on two different machines (Lenovo Thinkpad T595 and Lenovo Thinkbook 15-ILL), both times after upgrading to Neon 20200827 .
Similarly, also in my case I get stuck in the Grub command line when trying to boot from USB pen drive. Disabling UEFI secure boot seems not to change anything.
Kubuntu 20.04 boots properly from USB, so this problem is specific to KDE Neon.