Re: cvs commit to boot-floppies/utilities/dbootstrap by blade
On Fri, Mar 15, 2002 at 03:53:46AM -0800, Debian Boot CVS Master wrote:
> Repository: boot-floppies/utilities/dbootstrap
> who: blade
> time: Fri Mar 15 03:53:46 PST 2002
> Log Message:
> Cosmetics. Please-wait-while-looking screens while CD-Rom detection. Rhirst
> reported that this needs 4 seconds. IMHO this depends on the hardware quality,
> but this looks better anyways.
With an empty SCSI CDROM drive on my hppa there is almost no delay when
dbootstrap goes looking for a CD in it.
With an empty IDE CDROM drive on my ia64 box there is a 5 second delay
before 'no medium' is returned. This delay happens twice in quick
succession when the system looks for the two .disk/*installable files on
the CD, while looking to install the kernel. I then get 2*5 seconds
delay again when the system looks for the flags prior to installing
base. Multiple drives would make these delays even longer.
I guess it is a feature of the particular CDROM drive; whether we call
that lower quality, or whether it is actually trying harder to detect a
possibly dirty disk before returning an error, I don't know. Having
said that, the other 5 assorted DVD/CD drives I just tried all return
pretty much immediately.
We could at least halve these delays - for example there is no point
looking for the base_installable file when installing the kernel, and no
point looking for the kernel_installable flag when installing base.
Cheers,
Richard
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