Re: jessie won't install/boot on a Dell Poweredge R815

[Jeffrey Mark Siskind <qobi@purdue.edu>]

I conjecture that there may be two to five separate issues.

 1. Setting up md0 upon boot takes a long time. rootdelay=20 fixes this.
 2. There is a problem writing to disk. Perhaps just writing to certain blocks.
    Because even when the machine boots with rootdelay=20, and md0 has all 6
    components, grub-install fails and causes md0 to drop some/most of its
    components.

Both of these are observed with a dist path-upgrade from a fresh USB install
of wheezy to jessie. Separate from this, there are two other errors observed
with a direct fresh USB install of jessie.

 3. Can't find the ISO.
 4. grub-install
    This may be the same as (2) above.

This is yet distinct from the fact that

 5. a fresh direct USB install of jessie on the Dell Poweredge C6145s takes a
    really long time (an hour) for each hardware probe (three times, once
    before finding the ISO, once before partitioning, and once before grub
    install).

    Jeff (http://engineering.purdue.edu/~qobi)