Date: Sat, 6 Mar 2010 00:45:36 -0800 From: Garrett Cooper <yanefbsd@gmail.com> To: Giovanni Trematerra <giovanni.trematerra@gmail.com> Cc: freebsd-current@freebsd.org, Hans Petter Selasky <hselasky@c2i.net> Subject: Re: [FAQ] FBSD on a USB stick Message-ID: <7d6fde3d1003060045p330292d2w2b66bbb815067cc7@mail.gmail.com> In-Reply-To: <4e6cba831003050516r3cf2ee88p65486248e861dbed@mail.gmail.com> References: <201003011731.20790.hselasky@c2i.net> <4e6cba831003050516r3cf2ee88p65486248e861dbed@mail.gmail.com>
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On Fri, Mar 5, 2010 at 5:16 AM, Giovanni Trematerra
<giovanni.trematerra@gmail.com> wrote:
> Instead of this patch people can use kern.cam.boot_delay
> Just set a delay in ms.
> That works on 8-STABLE too.
>
> On Mon, Mar 1, 2010 at 5:31 PM, Hans Petter Selasky <hselasky@c2i.net> wrote:
>> Hi,
>>
>> Sometimes the USB sticks won't get detected in time. You can fix this by using
>> the following simple quick and dirty patch.
>>
>> --HPS
>>
>> ==================================================================
>> --- sys/kern/vfs_mount.c (revision 204512)
>> +++ sys/kern/vfs_mount.c (local)
>> @@ -1656,6 +1656,8 @@
>> UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
>> devfs_first();
>>
>> +repeat:
>> +
>> /*
>> * We are booted with instructions to prompt for the root filesystem.
>> */
>> @@ -1725,9 +1727,10 @@
>> * Everything so far has failed, prompt on the console if we haven't
>> * already tried that.
>> */
>> - if (!asked)
>> - if (!vfs_mountroot_ask())
>> - goto mounted;
>> + if (!asked) {
>> + pause("WDISK", 1*hz);
>> + goto repeat;
>> + }
>>
>> panic("Root mount failed, startup aborted.");
I agree with Giovanni as it's easier to customize than the
proposed patch above; it'll be nice when the work has been done where
hacks like these won't be required (waits in anticipation for scottl's
cam work).
Thanks!
-Garrett
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