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I need to tell kernel to completely ignore some SCSI devices (eg. from vendor 'PURE'). I see libata.force=x.yy:disable can be used for individual SATA devices, but I need something equivalent for SCSI devices. Any idea? (Via scsi_mod.dev_flags ???)

$ modinfo scsi_mod | grep dev_flags: | fmt -w 80
parm:           dev_flags:Given scsi_dev_flags=vendor:model:flags[,v:m:f] add
black/white list entries for vendor and model with an integer value of flags
to the scsi device info list (string) parm:           default_dev_flags:scsi
default device flag uint64_t value (ullong)
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  • Do you absolutely need to have the device blacklisted at boot time ? I mean you can't wait for init time and echo 1 > /sys/bus/scsi/devices/<device>/delete ? I just ask since trying to solve my problem ( unix.stackexchange.com/questions/703779/… ) I carefully went through all scsi related linux-5.4 boot parameters and… in vain. Commented Jun 2, 2022 at 7:18
  • My whole story is that there is a cluster with shared disks and during upgrade the "installer" had bug and while discovering root fs it was mounting r/o but without 'norecovery' :( so journal got rewind and the other node which was using r/w the filesystem was not happy. Thus I'm looking for a solution as kernel param to exclude any sw or human issue later... Commented Jun 2, 2022 at 8:46
  • It seems scsi_mod.dev_flags could do it but I don't know how to interpret value for <flags>, that is value for <vendor>:<model>:<flags>. Probably should be BLIST_REPORTLUN2|BLIST_TRY_VPD_PAGES? elixir.bootlin.com/linux/latest/source/include/scsi/… Commented Jun 3, 2022 at 7:40

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