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#1 2025-02-05 07:08:40

Lauwenmark
Member
Registered: 2025-02-05
Posts: 3  

Unable to install from the Excalibur netinstall ISO

Hello,

I tried to install Devuan from the Excalibur netinstall ISO, but this fails for some obscure reason. I get the following error messages :

=== Devuan boot preamble ===
Load modules:
 1 2
LABEL=DEVUAN60: Can't lookup blockdev
LABEL=Ventoy: Can't lookup blockdev
mount: mounting LABEL=Ventoy on /mnt failed: No such file or directory
LABEL=Ventoy: Can't lookup blockdev
mount: mounting LABEL=Ventoy on /mnt failed: No such file or directory
LABEL=DEVUAN60: Can't lookup blockdev
LABEL=Ventoy: Can't lookup blockdev
mount: mounting LABEL=Ventoy on /mnt failed: No such file or directory
LABEL=Ventoy: Can't lookup blockdev
mount: mounting LABEL=Ventoy on /mnt failed: No such file or directory
LABEL=DEVUAN60: Can't lookup blockdev
LABEL=Ventoy: Can't lookup blockdev
mount: mounting LABEL=Ventoy on /mnt failed: No such file or directory
LABEL=Ventoy: Can't lookup blockdev
mount: mounting LABEL=Ventoy on /mnt failed: No such file or directory
*** failed to mount the cdrom
*** Starting emergency shell ...

BusyBox v1.37.0 (Debian 1:1.37.0-4) built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ #

The keyboard is then unresponsive, and I have to perform a hard reset.

I have tested three different USB keys, created with Rufus, in MBR and GPT format, either in DD or ISO mode. None of this allowed me to reach the installer stage.

I have also tried to burn a physical DVD, but this resulted in the very same error as mentioned above.

This machine has a 5950X CPU on a Gigabyte X570 Aorus Master. This machine already has a working Devuan stable installation that boots without trouble. SecureBoot is disabled, and I tested with both CSM enabled and disabled.

Anyone got any idea on what's wrong ?

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#2 2025-02-05 09:18:50

rolfie
Member
Registered: 2017-11-25
Posts: 1,224  

Re: Unable to install from the Excalibur netinstall ISO

Looks like you are trying Ventoy, that tool does not work with Daedalus. And I would assume its the same with Excalibur.

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#3 2025-02-05 09:42:06

ralph.ronnquist
Administrator
From: Battery Point, Tasmania, AUS
Registered: 2016-11-30
Posts: 1,316  

Re: Unable to install from the Excalibur netinstall ISO

Can you provide output of

blkid $USBDEV

where $USBDEV is the device node for that USB; It appears the boot preamble fails to find a duly labelled partition.

Next, if you are somewhat confident with command line, you could try adding EMERG to the boot line (push TAB, then type EMERGE, then  Enter). That will bring you to a busybox shell early in the preamble, where you could investigate things, and especially modprobe any special modules that might be needed for the hardware. When you exit that shell, it will continue with the installation (loading device modules and scanning for the labelled partition).

There's also the variant adding "emerg" in lowercase, which enters the shell late in the preamble sequence (after failing to mount the ISO). At that point it has loaded modules to handle devices, and you might there be able to coax it manually by setting up a loop mount and run unpack by hand... review its /init for inspiration.

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#4 2025-02-05 10:52:55

Lauwenmark
Member
Registered: 2025-02-05
Posts: 3  

Re: Unable to install from the Excalibur netinstall ISO

Looks like you are trying Ventoy, that tool does not work with Daedalus. And I would assume its the same with Excalibur.

I was offered no choice about this. This is the result of using the ISO netinstall image supplied on devuan mirrors for Excalibur.

Can you provide output of blkid $USBDEV where $USBDEV is the device node for that USB; It appears the boot preamble fails to find a duly labelled partition.

Here it is (both for the device as a whole and for each of its partitions):

/dev/sda: BLOCK_SIZE="2048" UUID="2024-10-17-20-20-49-00" LABEL="DEVUAN60" type="iso9660" PTUUID="3dee7ae1" PTTYPE="dos"
/dev/sda1: BLOCK_SIZE="2048" UUID="2024-10-17-20-20-49-00" LABEL="DEVUAN60" type="iso9660" PTUUID="3dee7ae1" PTTYPE="dos" PARTUUID="3dee7ae1-01"
/dev/sda2: SEC_TYPE="msdos" UUID="1A0E-5C19" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="3dee7ae1-02"

Next, if you are somewhat confident with command line, you could try adding EMERG to the boot line

I tried that, too, but it doesn't work, as the keyboard is unresponsive in the resulting BusyBox session (regardless on what USB port I plug the keyboard in - and I also tried with two different keyboards just to be sure). I have no PS/2 port on this machine, unfortunately, so I can't test with a PS/2 keyboard.

Last edited by Lauwenmark (2025-02-05 10:54:33)

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#5 2025-02-05 11:46:35

ralph.ronnquist
Administrator
From: Battery Point, Tasmania, AUS
Registered: 2016-11-30
Posts: 1,316  

Re: Unable to install from the Excalibur netinstall ISO

The blkid response looks fine.

It looks like the boot preamble is missing some modules; especially I could see it lacks the "hid" module that is required by the "usbhid" module, which (I think) is the one that handles the USB keyboard.

The preamble also seems to be missing a module for the media device. Perhaps you could provide an lsmod listing from the working devuan system so I can check them out.

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#6 2025-02-05 11:50:40

Altoid
Member
Registered: 2017-05-07
Posts: 1,634  

Re: Unable to install from the Excalibur netinstall ISO

Hello:

Lauwenmark wrote:

... result of using the ISO netinstall image ...

I recently had a very hard time with a couple of netinstall *.iso images, devuan_chimaera_4.0.0_amd64_netinstall.iso and daedalus/devuan_daedalus_5.0.1_amd64_netinstall.iso while attempting to install a basic Devuan to a small capacity USB stick.

Have a read here to see how I finally managed to get it done.
Dev1 admin's help was crucial, no way I would have found a way out of the problem I was having.

The thing is that (IMO) the Debian installer (not forked by Devuan) definitely has something wrong with it.
I seriously doubt the Debian devs will do anything about it.

I assume that you have already tried basic dd'ing the *.iso to a USB stick (no Ventoy, etc.), with the usual precautions.
ie: *.iso file SHA256SUM prior to burning to USB and installation media check before proceding with the installation.

I so, check here to see the process which allowed me to get the installer to start working.
And even so, it refused to write GRUB to the indicated location so I had to reboot the installer, drop to rescue mode and install it by hand.

While my box is a standard BIOS boot / non-UEFI workstation, it may solve your problem.

Please keep us posted on how you fare with this.

Best,

A.

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#7 2025-02-06 06:14:54

Lauwenmark
Member
Registered: 2025-02-05
Posts: 3  

Re: Unable to install from the Excalibur netinstall ISO

ralph.ronnquist wrote:

Perhaps you could provide an lsmod listing from the working devuan system so I can check them out.

Here it is, alongside the output of both lsusb and lspci (who knows ? Maybe it will be of some use as well)

sysadmin@terminus:~$ lsmod
Module                  Size  Used by
nvidia_uvm           1540096  0
fuse                  176128  2
nft_fib_inet           16384  1
nft_fib_ipv4           16384  1 nft_fib_inet
nft_fib_ipv6           16384  1 nft_fib_inet
nft_fib                16384  3 nft_fib_ipv6,nft_fib_ipv4,nft_fib_inet
qrtr                   49152  2
nft_reject_inet        16384  6
nf_reject_ipv4         16384  1 nft_reject_inet
nf_reject_ipv6         20480  1 nft_reject_inet
nft_reject             16384  1 nft_reject_inet
nft_ct                 24576  8
nft_chain_nat          16384  3
nf_nat                 57344  1 nft_chain_nat
nf_conntrack          188416  2 nf_nat,nft_ct
nf_defrag_ipv6         24576  1 nf_conntrack
nf_defrag_ipv4         16384  1 nf_conntrack
ip_set                 61440  0
nf_tables             303104  174 nft_ct,nft_reject_inet,nft_fib_ipv6,nft_fib_ipv4,nft_chain_nat,nft_reject,nft_fib,nft_fib_inet
libcrc32c              16384  3 nf_conntrack,nf_nat,nf_tables
nfnetlink              20480  3 nf_tables,ip_set
rfcomm                 94208  4
cmac                   16384  3
algif_hash             16384  1
algif_skcipher         16384  1
af_alg                 36864  6 algif_hash,algif_skcipher
bnep                   28672  2
msr                    16384  0
nvidia_drm             77824  92
drm_kms_helper        212992  1 nvidia_drm
nvidia_modeset       1314816  22 nvidia_drm
nls_ascii              16384  1
nls_cp437              20480  1
vfat                   24576  1
fat                    90112  1 vfat
video                  65536  1 nvidia_modeset
parport_pc             40960  0
ppdev                  24576  0
lp                     20480  0
parport                73728  3 parport_pc,lp,ppdev
intel_rapl_msr         20480  0
intel_rapl_common      32768  1 intel_rapl_msr
edac_mce_amd           40960  0
btusb                  69632  0
btrtl                  28672  1 btusb
btbcm                  24576  1 btusb
btintel                45056  1 btusb
kvm_amd               155648  0
btmtk                  16384  1 btusb
iwlmvm                385024  0
nvidia              56795136  2234 nvidia_uvm,nvidia_modeset
kvm                  1146880  1 kvm_amd
bluetooth             970752  30 btrtl,btmtk,btintel,btbcm,bnep,btusb,rfcomm
irqbypass              16384  1 kvm
mac80211             1175552  1 iwlmvm
ghash_clmulni_intel    16384  0
sha256_ssse3           32768  0
snd_hda_codec_realtek   176128  1
libarc4                16384  1 mac80211
sha1_ssse3             32768  0
snd_hda_codec_generic    98304  1 snd_hda_codec_realtek
jitterentropy_rng      16384  1
ledtrig_audio          16384  1 snd_hda_codec_generic
snd_hda_codec_hdmi     81920  1
sha512_ssse3           49152  1
sha512_generic         16384  1 sha512_ssse3
snd_usb_audio         380928  0
uvcvideo              131072  0
snd_hda_intel          57344  0
iwlwifi               360448  1 iwlmvm
snd_intel_dspcfg       36864  1 snd_hda_intel
ctr                    16384  0
videobuf2_vmalloc      20480  1 uvcvideo
snd_virtuoso           65536  0
snd_intel_sdw_acpi     20480  1 snd_intel_dspcfg
videobuf2_memops       20480  1 videobuf2_vmalloc
aesni_intel           393216  4
videobuf2_v4l2         36864  1 uvcvideo
snd_hda_codec         184320  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_oxygen_lib         53248  1 snd_virtuoso
videobuf2_common       73728  4 videobuf2_vmalloc,videobuf2_v4l2,uvcvideo,videobuf2_memops
snd_usbmidi_lib        45056  1 snd_usb_audio
snd_mpu401_uart        16384  1 snd_oxygen_lib
drbg                   45056  1
videodev              294912  3 videobuf2_v4l2,uvcvideo,videobuf2_common
crypto_simd            16384  1 aesni_intel
snd_hda_core          122880  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_rawmidi            53248  2 snd_usbmidi_lib,snd_mpu401_uart
cryptd                 28672  3 crypto_simd,ghash_clmulni_intel
cfg80211             1146880  3 iwlmvm,iwlwifi,mac80211
snd_hwdep              16384  2 snd_usb_audio,snd_hda_codec
snd_seq_device         16384  1 snd_rawmidi
evdev                  28672  27
joydev                 28672  0
mc                     81920  5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common
ansi_cprng             16384  0
snd_pcm               159744  6 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_oxygen_lib,snd_hda_codec,snd_hda_core
drm                   614400  47 drm_kms_helper,nvidia,nvidia_drm
rapl                   20480  0
ecdh_generic           16384  2 bluetooth
snd_timer              49152  1 snd_pcm
sp5100_tco             20480  0
pcspkr                 16384  0
wmi_bmof               16384  0
gigabyte_wmi           24576  0
efi_pstore             16384  0
ecc                    40960  1 ecdh_generic
ccp                   118784  1 kvm_amd
snd                   126976  15 snd_hda_codec_generic,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_oxygen_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_virtuoso,snd_mpu401_uart,snd_pcm,snd_rawmidi
mxm_wmi                16384  0
watchdog               45056  1 sp5100_tco
k10temp                16384  0
rfkill                 36864  8 iwlmvm,bluetooth,cfg80211
soundcore              16384  1 snd
button                 24576  0
acpi_cpufreq           32768  0
efivarfs               24576  1
ext4                  983040  6
crc16                  16384  2 bluetooth,ext4
mbcache                16384  1 ext4
jbd2                  167936  1 ext4
crc32c_generic         16384  0
hid_multitouch         32768  0
hid_generic            16384  0
usbhid                 65536  0
hid                   159744  3 usbhid,hid_multitouch,hid_generic
dm_mod                184320  25
ahci                   49152  0
libahci                49152  1 ahci
xhci_pci               24576  0
xhci_hcd              315392  1 xhci_pci
r8169                  94208  0
nvme                   57344  2
libata                401408  2 libahci,ahci
realtek                36864  1
nvme_core             163840  9 nvme
mdio_devres            16384  1 r8169
t10_pi                 16384  1 nvme_core
usbcore               348160  7 xhci_hcd,snd_usb_audio,usbhid,snd_usbmidi_lib,uvcvideo,btusb,xhci_pci
scsi_mod              286720  1 libata
crc32_pclmul           16384  0
crc32c_intel           24576  13
libphy                180224  3 r8169,mdio_devres,realtek
i2c_piix4              28672  0
crc64_rocksoft         20480  1 t10_pi
crc64                  20480  1 crc64_rocksoft
crc_t10dif             20480  1 t10_pi
scsi_common            16384  2 scsi_mod,libata
usb_common             16384  3 xhci_hcd,usbcore,uvcvideo
crct10dif_generic      16384  0
crct10dif_pclmul       16384  1
crct10dif_common       16384  3 crct10dif_generic,crc_t10dif,crct10dif_pclmul
wmi                    36864  4 video,gigabyte_wmi,wmi_bmof,mxm_wmi
sysadmin@terminus:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 048d:8297 Integrated Technology Express, Inc. IT8297 RGB LED Controller
Bus 001 Device 003: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub
Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 005: ID 045b:0209 Hitachi, Ltd 
Bus 001 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 001 Device 007: ID 045b:0209 Hitachi, Ltd 
Bus 001 Device 008: ID 0eef:0005 D-WAV Scientific Co., Ltd WS170120
Bus 001 Device 009: ID 0b05:19a7 ASUSTek Computer, Inc. ROG Gaming Display Aura Device
Bus 001 Device 010: ID 0eef:0005 D-WAV Scientific Co., Ltd WS170120
Bus 001 Device 011: ID 046d:c08b Logitech, Inc. G502 SE HERO Gaming Mouse
Bus 001 Device 012: ID 0bda:5450 Realtek Semiconductor Corp. BillBoard Device
Bus 001 Device 013: ID 1b1c:1b11 Corsair K95 RGB Mechanical Gaming Keyboard
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 0bda:0411 Realtek Semiconductor Corp. Hub
Bus 002 Device 003: ID 045b:0210 Hitachi, Ltd 
Bus 002 Device 004: ID 045b:0210 Hitachi, Ltd 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:0029 Intel Corp. AX200 Bluetooth
Bus 003 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
sysadmin@terminus:~$ lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Root Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Starship/Matisse IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse GPP Bridge
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:05.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Internal PCIe GPP Bridge 0 to bus[E:B]
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Matisse/Vermeer Data Fabric: Device 18h; Function 7
01:00.0 Non-Volatile memory controller: Sandisk Corp SanDisk Ultra 3D / WD PC SN530, IX SN530, Blue SN550 NVMe SSD (DRAM-less) (rev 01)
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse Switch Upstream
03:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:03.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:09.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
03:0a.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Matisse PCIe GPP Bridge
04:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983
05:00.0 Non-Volatile memory controller: Sandisk Corp SanDisk Ultra 3D / WD PC SN530, IX SN530, Blue SN550 NVMe SSD (DRAM-less) (rev 01)
06:00.0 Non-Volatile memory controller: Sandisk Corp WD Black SN850X NVMe SSD (rev 01)
07:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 01)
09:00.0 PCI bridge: PLX Technology, Inc. PEX8112 x1 Lane PCI Express-to-PCI Bridge (rev aa)
0a:04.0 Multimedia audio controller: C-Media Electronics Inc CMI8788 [Oxygen HD Audio]
0b:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
0b:00.1 USB controller: Advanced Micro Devices, Inc. [AMD] Matisse USB 3.0 Host Controller
0b:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Matisse USB 3.0 Host Controller
0c:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
0d:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)
0e:00.0 VGA compatible controller: NVIDIA Corporation GA104 [GeForce RTX 3070] (rev a1)
0e:00.1 Audio device: NVIDIA Corporation GA104 High Definition Audio Controller (rev a1)
0f:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse PCIe Dummy Function
10:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Reserved SPP
10:00.1 Encryption controller: Advanced Micro Devices, Inc. [AMD] Starship/Matisse Cryptographic Coprocessor PSPCPP
10:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Matisse USB 3.0 Host Controller
10:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller

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#8 2025-02-06 07:27:35

ralph.ronnquist
Administrator
From: Battery Point, Tasmania, AUS
Registered: 2016-11-30
Posts: 1,316  

Re: Unable to install from the Excalibur netinstall ISO

That looks well equipped and farily normal. Though  is that only USB 3 ports? Maybe that's a problem for the installer preamble ... I guess your DVD attempt was via a USB drive as well?

If you would have a USB 2 hub it could possibly make a difference; to let the preamble find the ISO and switch into the installer proper.

Alternatively if you could dd the ISO onto an nvme partition to be available there for the preamble's media detection. That would be an option too ... you would boot from the USB stick but let it find the duly labelled nvme partition as its media (for unpacking the installer proper), and when the installer proper has started you could (with immediate Alt-F2 hands-on) guide its media detection to the USB. If you would want that, e.g. to make that nvme partition avaiable for the installation. (If you wish I could give a more detailed step-by-step for this)

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