Can I delete 'scsi' in mkinitcpio.conf !!

Question

I have no scsi device in my system , but in lsmod
I found :
scsi_mod               96460  5 usb_storage,sg,sr_mod,sd_mod,libata
and in dmesg:
I found
SCSI subsystem initialized
scsi0 : ata_piix
scsi1 : ata_piix
scsi 0:0:0:0: Direct-Access     ATA      ST380817AS       3.42 PQ: 0 ANSI: 5
scsi 1:0:0:0: CD-ROM            AOPEN    CD-RW CRW2440    2.02 PQ: 0 ANSI: 5
Since my system spent so much time in  boot process, so I want to remove scsi in mkinitcpio.conf to make it faster,
may I?
(sorry for my poor english.)

Answer 1

scsi     Adds SCSI modules to the image. Use this if your root device is on a SCSI disk. Also use the autodetect hook if you want to minimize your image size.     Loads SCSI modules. You will need the udev or modload hook unless you specify the needed modules manually (see MODULES section below).
I don't think I have the SCSI hook in any of my setups (I have a server with P-ATA disks, a laptop with a P-ATA SSD, and a desktop with S-ATA disks) and neither of them has an SCSI hook.
The terminology is a bit confusing indeed, since the SCSI transport layer is used afaik for both P-ATA and S-ATA devices with the libata layer. Nevertheless, since the explanation on the wiki page explicitly says the SCSI hook is for SCSI HDs (which, even with the libata layer, the P-ATA and S-ATA HDs are not, you have separate PATA and SATA hooks for them), I'd say you can just dump it.
You can always try to take it out, rebuild the image of the default kernel, and try to boot it. If it breaks, you just try again - with the fallback kernel (that's what it's there for). Just make sure you don't rebuild that one accidentally.
Last edited by B (2008-11-04 13:23:32)