[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: State of the PA-RISC/HPPA port (August 2013)

On Sun, Aug 4, 2013 at 8:38 AM, John David Anglin <dave.anglin@bell.net> wrote:
> The root= parameter mostly works for me.  However, different kernels
> sometimes change the order of disk discovery when you have multiple
> drives.  Helge thinks it would be easy to specify file system by uuid.

Helge is as usual correct. One can also specify a root=LABEL=foo parameter.

I suspect the async SCSI bus scanning (added in 2.6.20) is not helping
here. Set SCSI_SCAN_ASYNC to N and discovery order should be more

> I have an inexpensive portable USB drive connected to one of my systems.  It
> comes up as /dev/sda at boot and messes up the drive order.  Not exactly plug and play...

Right. Linux doesn't have a registry for /dev/sdX names and I don't
think it ever will. Using root=UUID=xxx or root=LABEL=foo is plug and
play friendly.

I believe LABEL comes from the partition table and UUID from the file
system. But double check that.


Reply to: