Comment 17 for bug 22220

Revision history for this message
Stuart Cianos (scianos) wrote : Re: Ubuntu 5.10 Preview (Breezy Badger) Panics w/ I2O based raid

I did a test with flight 2 and things are improved, but there are still problems
that would prevent the average user (or even sysadmin) from completing an install...

Here's a summary - I'll post additional info as I play around with it...

a) Module detection: Loads i2o_core from the new i2o subsystem layer but forgets
i2o_block, et al and therefore can not autodetect connected i2o disks. The
installer only presents dpt_i2o as an option, but since i2o_core has already
claimed the device dpt_i2o can not bind to the card. The Distribution needs to
settle on the new i2o layer or the traditional dpt_i2o driver. The new i2o layer
does have some compelling things going for it - namely an active development
path in the 2.6x kernels.

It should be noted that once the new i2o layers are hand-loaded, the installer
does successfully install to the disk!

b) The device mappings for GRUB are broken with the new i2o layers. They default
to /dev/sda instead of /dev/i2o/hda, etc. This prevents an automated grub install.

c) Once installed, the initrd does not (of course - due to my manual
installation) include the proper i2o_* drivers.

I'll do the same tests with the dpt_i2o drivers and see if we have better success.

- Stu