[haiku-bugs] Re: [Haiku] #5197: USB Flash Drive not recognised at boot; works fine in Haiku
- From: "casm" <trac@xxxxxxxxxxxx>
- Date: Sat, 02 Jan 2010 20:27:43 -0000
#5197: USB Flash Drive not recognised at boot; works fine in Haiku
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Reporter: casm | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone:
Component: System/Boot Loader | Version: R1/alpha1
Keywords: WebDT Geode USB | Blockedby:
Platform: All | Blocking:
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Comment(by casm):
Replying to [comment:1 mmlr]:
> What image are you using? Note that our ISOs aren't (yet) hybrid
MBR/ISOs so you can't use the ISOs for booting USB sticks.
Well, that explains that ;) I'm currently using the Alpha 1 image (from
http://mirrors.ibiblio.org/pub/mirrors/haiku/releases/r1alpha1/haiku-
r1alpha1-iso.zip) for testing. Makes sense that it only boots from CD.
> Anyway, the problem is that our boot code/MBR doesn't provide a valid
partition table and the (broken) BIOS assumes to boot from an "active"
partition which isn't there. The problem is assuming a partition table in
that way is broken because there's more than one partitioning system
(think GPT or just custom boot code). Nothing we can do about other than
faking a partition table. It's not a USB problem anyway.
Can we move to or add the option to build hybrid MBR/ISOs? I bring this
up because I'm testing on physical hardware that has three boot options:
USB CD-ROM, USB flash drive, or the proprietary internal almost-but-not-
quite-IDE SSD (equivalent to /dev/hda). I'd like to be able to test
nightlies as well as spec builds out of svn, but the only practical way to
do that is via USB flash - having to burn CDs on a regular basis would
severely limit my ability to test effectively.
> I'm pretty sure this problem is logged already, but I can't find the
ticket.
Yeah... I searched before filing, but couldn't find it either.
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Ticket URL: <http://dev.haiku-os.org/ticket/5197#comment:2>
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