From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Greg KH" Date: Mon, 29 Mar 2004 15:39:43 +0000 Subject: Re: removable media revalidation - udev vs. devfs or static /dev Message-Id: <00c101c415a4$0e504d20$d100000a@sbs2003.local> List-Id: References: <200401012333.04930.arvidjaar@mail.ru> In-Reply-To: <200401012333.04930.arvidjaar@mail.ru> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org On Thu, Jan 01, 2004 at 11:33:04PM +0300, Andrey Borzenkov wrote: > udev names are created when kernel detects corr. device. Unfortunately for > removable media kernel rescans for partitions only when I try to access > device. Meaning - because kernel does not know partition table it did not > send hotplug event so udev did not create device nodes. But without device > nodes I have no way to access device in Unix :( > > specifically I have now my Jaz and I have no (reasonable) way to access > partition 4 assuming device nodes are managed by udev. > > devfs solved this problem by > > - always exporting at least handle to the whole disk (sda as example) Doesn't the kernel always create the main block device for this device? If so, udev will catch that. If not, there's no way udev will work for this kind of device, sorry. You could make a script that just creates the device node in /tmp, runs dd on it, and then cleans it all up to force partition scanning. thanks, greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id70&alloc_id638&op=click _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel