Also No issues, my stats
System:
  Host: skynet-HP-tw Kernel: 6.2.9-1-default arch: x86_64 bits: 64 compiler: gcc v: 13.0.1
    Console: pty pts/0 Distro: openSUSE Tumbleweed 20230403
CPU:
  Info: quad core model: Intel Core i7-6700 bits: 64 type: MT MCP arch: Skylake-S rev: 3 cache:
    L1: 256 KiB L2: 1024 KiB L3: 8 MiB
  Speed (MHz): avg: 3087 high: 3400 min/max: 800/4000 cores: 1: 3400 2: 900 3: 3400 4: 3400
    5: 3400 6: 3400 7: 3400 8: 3400 bogomips: 54398
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Drives:
  Local Storage: total: 1.36 TiB used: 112.55 GiB (8.1%)
  ID-1: /dev/sda vendor: Western Digital model: WD10EZEX-60WN4A0 size: 931.51 GiB
  ID-2: /dev/sdb vendor: Western Digital model: WDBNCE5000PNC-WRSN size: 465.76 GiB
On Apr 5, 2023, at 11:18, Manfred Hollstein <mhollstein@t-online.de> wrote:

On Wed, 05 Apr 2023, 16:30:16 +0200, Fritz Hudnut wrote:
[...]
I'm also running TW on SATA SSD and had no issue on cold booting back
into it after upgrading to 6.2.9.1-default on '12 Mac Pro . . .
booting from grub, essentially box stock boot params, but just one
user of it.

I would concur with Mr Miata's comment about "slowness" of booting,
compared today to my Sid install, which was very quick; TW seems to
take its time when waking up from a nights slumber, checking over the
to-do list before getting to it, etc.

to make it absolutely clear, *my* boot issues were caused by boot
parameters passed via /etc/default/grub resp. /boot/grub2/grub2.cfg. I
had

 mitigations=auto spectre_v2=retpoline retbleed=stuff

included in the GRUB_CMDLINE_LINUX_DEFAULT initializer.

Removing "spectre_v2=retpoline retbleed=stuff" made the boot error go
away, and it did not have anything to do with NVME stuff - was just my
first thought...

Cheers.

l8er
manfred