Re: [gentoo-user] [SOLVED] External hard disk doesn't mount on boot
On Thu, Mar 20, 2008 at 1:13 PM, Dan Cowsill [EMAIL PROTECTED] wrote: On Thu, Mar 20, 2008 at 12:22 PM, Dan Cowsill [EMAIL PROTECTED] wrote: On Thu, Mar 20, 2008 at 11:01 AM, Alan McKinnon [EMAIL PROTECTED] wrote: On Thursday 20 March 2008, Dan Cowsill wrote: Right, so I have an external USB hard drive always hooked up to my machine. I've a listing in /etc/fstab to mount it at boot. Unfortunately, the drive does not boot because localmount can't find /dev/sda1. Now, after the boot process I can find /dev/sda1 and mount the drive just fine, leading me to believe that localmount tries to mount the drive without populating /dev with USB devices. How could I resolve this? The canonical way is of course to use udev to run a mount script as soon as the usb drive's device is created. This is hard and requires much googling. The hackish, kludgy, totally not recommended method that always works is to put a call to 'mount -a' in /etc/local.d/local.start :-) -- Alan McKinnon alan dot mckinnon at gmail dot com -- gentoo-user@lists.gentoo.org mailing list Okay, so I wrote a new rule into rules.d that goes like this: KERNEL==sda, RUN+=/bin/mount -t ntfs-3g /dev/sda1 /home/dcowsill/usb Now, this works (sort of). If I were to run udevstart, udev would happily execute mount on the usb drive and all would be well. If the system is restarted or the device is plugged in, no joy. So why is this only executing when I use udevstart? -- Dan Cowsill http://www.danthehat.net Yeh, I wasn't being specific enough with my rule. This rule (revised) works perfectly: KERNEL==sda1, RUN+=/bin/mount -t ntfs-3g /dev/sda1 /home/dcowsill/usb Thanks Alan, for putting me on the right track. Also, much appreciation goes to Greg Kroah-Hartman, who wrote udevtest! Cheers -- Dan Cowsill http://www.danthehat.net -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] [SOLVED] External hard disk doesn't mount on boot
On Thu, Mar 20, 2008 at 1:22 PM, Mark Knecht [EMAIL PROTECTED] wrote: On Thu, Mar 20, 2008 at 11:13 AM, Dan Cowsill [EMAIL PROTECTED] wrote: On Thu, Mar 20, 2008 at 12:22 PM, Dan Cowsill [EMAIL PROTECTED] wrote: On Thu, Mar 20, 2008 at 11:01 AM, Alan McKinnon [EMAIL PROTECTED] wrote: On Thursday 20 March 2008, Dan Cowsill wrote: Right, so I have an external USB hard drive always hooked up to my machine. I've a listing in /etc/fstab to mount it at boot. Unfortunately, the drive does not boot because localmount can't find /dev/sda1. Now, after the boot process I can find /dev/sda1 and mount the drive just fine, leading me to believe that localmount tries to mount the drive without populating /dev with USB devices. How could I resolve this? The canonical way is of course to use udev to run a mount script as soon as the usb drive's device is created. This is hard and requires much googling. The hackish, kludgy, totally not recommended method that always works is to put a call to 'mount -a' in /etc/local.d/local.start :-) -- Alan McKinnon alan dot mckinnon at gmail dot com -- gentoo-user@lists.gentoo.org mailing list Okay, so I wrote a new rule into rules.d that goes like this: KERNEL==sda, RUN+=/bin/mount -t ntfs-3g /dev/sda1 /home/dcowsill/usb Now, this works (sort of). If I were to run udevstart, udev would happily execute mount on the usb drive and all would be well. If the system is restarted or the device is plugged in, no joy. So why is this only executing when I use udevstart? Good work Dan. I'll save this thread for future reference. As someone who has used lots of external drives in the past you might want to do your mount by label or some sort of drive specific UUID and not by /dev/sda1. What can happen over time is that you'll add a second drive and because USB or 1394 often do device discovery order by which drive spins up first two identical drives will come up in random orders which switches your mounting around strangely. I've had good luck just mounting by label without using udev but I've wanted to figure this out. You've given me a nice start. thanks. Cheers, Mark -- gentoo-user@lists.gentoo.org mailing list Yeh, I only opted for matching the kernel name of the device because the headless server I'm working on very likely will never encounter a new USB device. But the rule would be more robust. Glad I could help. Cheers -- Dan Cowsill http://www.danthehat.net -- gentoo-user@lists.gentoo.org mailing list
