J?rgen Keil wrote: >>>> The interesting quirk here for me is that the time from grub boot menu >>>> selection to SunOS banner from *an actual CD* is about 30 seconds while >>>> the time for a USB image is about 2 minutes. >>>> >>>> Is a CD drive that much faster at transferring the initial ramdisk than >>>> a USB stick? >>> Yes, that's possible. >>> >>> Esp. older systems seem to use USB 1.x transfers only, when >>> booting from an USB storage device. >>> >>> Newer systems have "USB 2.0 High-Speed Boot" support and >>> are able to boot *much* faster from USB storage devices. >> In this particular case, I verified that the device shows up as USB 2.0, >> and the dmesg logs indicate that it is using "high-speed transfers." >> >> This is a fairly new Intel Core 2 Duo E8400 (E8600?) system. > > Where does it show up as USB 2.0? In Solaris?
In the BIOS, in the boot menu, and in the Solaris dmesg log. > The BIOS should use USB 2.0. Are there any BIOS USB > setup options, for EHCI or USB 2.0? > > I think this is a BIOS issue. I have bootable SX:CE and OpenSolaris > on USB flash memory sticks, and the same stick boots in about > 10 seconds from GRUB menu to SunOS banner on one machine, > and needs a few minutes (IIRC ~ 2 minutes) on another box. > > During that boot phase, GRUB is reading the boot device > using BIOS disk accesses. I don't think there's much that > can be optimized from Solaris' side. I guess. My other option is to try a different USB stick instead of the generic one I have. Cheers, -- Shawn Walker
