Well, I was trying the same thing but via GRUB_PRELOAD_MODULES (which didn't work) so gave this a go. Still didn't work. First I just added just "megaraid_sas" which failed to solve it, so then I added a bunch. Just about everything "(MODULES=(megaraid_sas xfs scsi_mod libcrc32c ahci xhci_pci ohci_pci ehci_pci xhci_hcd ohci_hcd ehci_hcd sr_mod sd_mod libata shpchp i2c_piix4 sp5100_tco k10temp fam15h_power nouveau nvidia_drm nvidia) )" but it still takes nearly 30 seconds for the sdX devices to appear with blk-mq enabled. Strange. Thanks for your thoughts though. I'm not done banging on it yet. Kind regards On Fri, May 11, 2018 at 5:38 AM LoneVVolf <lonewolf@xxxxxxxxx> wrote: > On 11-05-18 06:57, Randy DuCharme via arch-general wrote: > > Greetings again, > > > > I've been continuing to fool with this. I'm hoping someone smarter than I > > can shed a little more light on it. Here's what I've discovered since my > > last post..... > > > > It seems that on my system, it takes more than the allowed 10 seconds for > > the disks to appear. I removed "quiet" from my boot command line and it > > timed out looking for UUID=xxxx..... . So I looked for it and it > > definitely was not there. None of the sdXx devices were. I looked again, > > and yet again (ls /dev/sd*) and after about the 3rd or 4th attempt they > > showed up. So then, I mounted /dev/sdc3 to /new_root/, typed 'exit' and > > after a warning about possibly failing to run as a user instance, it booted. > > > > Any clues as to why this occurs? I'm trying to find a way to increase the > > pre-boot disk probe timer if possible. So far, all I've found are tips > > about speeding up the boot process, not slowing it down. > > > > Many thanks in advance. > > > In order for your drives to be detected the kernel modules needed by the > hardware must be loaded and active. > Your description matches a situation where some needed module is loaded > too late in the boot process. > Use lspci -k to determine which kernel modules are needed for your sata > / raid controllers and add that one to the modules= line in > mkinitcpio.conf . > Incase it's unclear which module is needed, try the one that handles the > boot parameter (scsi_mod) . > LW -- Randall DuCharme (Radio AD5GB) Powered entirely by Open Source software.
