Re: Problem with usb-storage and /dev/sd?
Hi Willy :) * Willy Tarreau <[EMAIL PROTECTED]> dixit: > > That's not possible. sd_mod will assign different devices for > > different USB gadgets, and that's my problem in the first case!. If I > > plug my USB-whatever, it gets assigned /dev/sda1 (for the first > > partition, I mean). If I unplug it and, after that, I plug any other > > USB device, it gets assigned /dev/sdb1, etc. Don't know if the > > culprit is usb-storage or sd_mod :? The problem is that I cannot know > > about which device was assigned (at least in 2.4.x) so I can modify > > fstab or even mount it. > I've been suffering from the same problem for a long time until I found > a patch from Erik Andersen which automatically unregisters the sd device > once you unplug the USB device. It has changed my life :-) Thanks! Unfortunately, it solves only half of my problem. If I plug *two* USB storage devices, the second will fail (well, it won't be assigned the correct device). The perfect solution is to always use the same dev entry for the same USB device, but I need sysfs for that (AFAIK), just like udev does. > Here it is for 2.4. I even wonder why we would not put this into mainline, > since having orphan devices brings nothing but confusion. Don't know : Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net & http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Raul,
On Sun, Aug 14, 2005 at 09:32:57AM +0200, DervishD wrote:
> Hi Pete :)
>
> * Pete Zaitcev <[EMAIL PROTECTED]> dixit:
> > > A global unique ID won't work out to make all USB mass storage devices
> > > appear under a common mountpoint, especially if it is recreated while
> > > "formating" it.
> > That is correct, but not what Dervish wanted. He wanted to mount them
> > on separate pre-assigned mount points. If you want all of them to mount
> > on the same place, just use /dev/sda1!
>
> That's not possible. sd_mod will assign different devices for
> different USB gadgets, and that's my problem in the first case!. If I
> plug my USB-whatever, it gets assigned /dev/sda1 (for the first
> partition, I mean). If I unplug it and, after that, I plug any other
> USB device, it gets assigned /dev/sdb1, etc. Don't know if the
> culprit is usb-storage or sd_mod :? The problem is that I cannot know
> about which device was assigned (at least in 2.4.x) so I can modify
> fstab or even mount it.
I've been suffering from the same problem for a long time until I found
a patch from Erik Andersen which automatically unregisters the sd device
once you unplug the USB device. It has changed my life :-)
Here it is for 2.4. I even wonder why we would not put this into mainline,
since having orphan devices brings nothing but confusion.
Regards,
Willy
This patch has been in use locally for quite some time now and
makes working with USB and 1394 mass-storage devices in 2.4.x a
much less painful experience. When devices are plugged in, they
are automagically connected up to the scsi subsystem without the
need to rescan all scsi busses or echo things into
/proc/scsi/scsi. When devices are unplugged, they are
automagically removed from the scsi subsystem, instead of hanging
around registered but with no media actually present.
-Erik
--
Erik B. Andersen http://codepoet-consulting.com/
--This message was written using 73% post-consumer electrons--
Signed-off-by: Erik Andersen <[EMAIL PROTECTED]>
--- orig/drivers/usb/storage/usb.c Fri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/usb/storage/usb.c Fri Sep 17 15:34:38 2004
@@ -744,6 +744,11 @@
/* unlock the device pointers */
up(&(ss->dev_semaphore));
+ /* Try to re-connect ourselves to the SCSI subsystem */
+ if (scsi_add_single_device(ss->host, 0, 0, 0))
+ printk(KERN_WARNING "Unable to connect USB device to the
SCSI subsystem\n");
+ else
+ printk(KERN_WARNING "USB device connected to the SCSI
subsystem\n");
} else {
/* New device -- allocate memory and initialize */
US_DEBUGP("New GUID " GUID_FORMAT "\n", GUID_ARGS(guid));
@@ -1057,6 +1062,12 @@
/* lock access to the device data structure */
down(&(ss->dev_semaphore));
+ /* Try to un-hook ourselves from the SCSI subsystem */
+ if (scsi_remove_single_device(ss->host, 0, 0, 0))
+ printk(KERN_WARNING "Unable to disconnect USB device from the SCSI
subsystem\n");
+ else
+ printk(KERN_WARNING "USB device disconnected from the SCSI
subsystem\n");
+
/* release the IRQ, if we have one */
if (ss->irq_urb) {
US_DEBUGP("-- releasing irq URB\n");
--- orig/drivers/ieee1394/sbp2.cFri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/ieee1394/sbp2.cFri Sep 17 15:34:38 2004
@@ -231,7 +231,7 @@
* enable this define to make use of it. This provides better hotplug
* support. The mentioned patch is not part of the kernel proper though,
* because it is considered somewhat of a hack. */
-//#define SBP2_USE_SCSI_ADDREM_HACK
+#define SBP2_USE_SCSI_ADDREM_HACK
/*
--- orig/drivers/scsi/scsi_syms.c Fri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/scsi/scsi_syms.c Fri Sep 17 15:34:38 2004
@@ -104,3 +104,9 @@
extern int scsi_delete_timer(Scsi_Cmnd *);
EXPORT_SYMBOL(scsi_add_timer);
EXPORT_SYMBOL(scsi_delete_timer);
+
+/* Support for hot plugging and unplugging devices -- safe for
+ * ieee1394 or USB devices, but probably not for normal SCSI... */
+EXPORT_SYMBOL(scsi_add_single_device);
+EXPORT_SYMBOL(scsi_remove_single_device);
+
--- orig/drivers/scsi/hosts.h Fri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/scsi/hosts.h Fri Sep 17 15:34:38 2004
@@ -535,6 +535,13 @@
int scsi_register_device(struct Scsi_Device_Template * sdpnt);
void scsi_deregister_device(struct Scsi_Device_Template * tpnt);
+/* Support for hot plugging and unplugging devices -- safe for
+ * ieee1394 or USB devices, but probably not for normal SCSI... */
+extern int scsi_add_single_device(struct Scsi_Host *shpnt,
+ int channel, int id, int lun);
+extern int scsi_remove_single_device(struct Scsi_Host *shpnt,
+ int channel, int id, int lun);
+
/* These are used by loadable modules */
extern int scsi_register_module(int, void *);
extern int
Re: Problem with usb-storage and /dev/sd?
Hi Pete :) * Pete Zaitcev <[EMAIL PROTECTED]> dixit: > > A global unique ID won't work out to make all USB mass storage devices > > appear under a common mountpoint, especially if it is recreated while > > "formating" it. > That is correct, but not what Dervish wanted. He wanted to mount them > on separate pre-assigned mount points. If you want all of them to mount > on the same place, just use /dev/sda1! That's not possible. sd_mod will assign different devices for different USB gadgets, and that's my problem in the first case!. If I plug my USB-whatever, it gets assigned /dev/sda1 (for the first partition, I mean). If I unplug it and, after that, I plug any other USB device, it gets assigned /dev/sdb1, etc. Don't know if the culprit is usb-storage or sd_mod :? The problem is that I cannot know about which device was assigned (at least in 2.4.x) so I can modify fstab or even mount it. Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net & http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Pete :) * Pete Zaitcev [EMAIL PROTECTED] dixit: A global unique ID won't work out to make all USB mass storage devices appear under a common mountpoint, especially if it is recreated while formating it. That is correct, but not what Dervish wanted. He wanted to mount them on separate pre-assigned mount points. If you want all of them to mount on the same place, just use /dev/sda1! That's not possible. sd_mod will assign different devices for different USB gadgets, and that's my problem in the first case!. If I plug my USB-whatever, it gets assigned /dev/sda1 (for the first partition, I mean). If I unplug it and, after that, I plug any other USB device, it gets assigned /dev/sdb1, etc. Don't know if the culprit is usb-storage or sd_mod :? The problem is that I cannot know about which device was assigned (at least in 2.4.x) so I can modify fstab or even mount it. Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Raul,
On Sun, Aug 14, 2005 at 09:32:57AM +0200, DervishD wrote:
Hi Pete :)
* Pete Zaitcev [EMAIL PROTECTED] dixit:
A global unique ID won't work out to make all USB mass storage devices
appear under a common mountpoint, especially if it is recreated while
formating it.
That is correct, but not what Dervish wanted. He wanted to mount them
on separate pre-assigned mount points. If you want all of them to mount
on the same place, just use /dev/sda1!
That's not possible. sd_mod will assign different devices for
different USB gadgets, and that's my problem in the first case!. If I
plug my USB-whatever, it gets assigned /dev/sda1 (for the first
partition, I mean). If I unplug it and, after that, I plug any other
USB device, it gets assigned /dev/sdb1, etc. Don't know if the
culprit is usb-storage or sd_mod :? The problem is that I cannot know
about which device was assigned (at least in 2.4.x) so I can modify
fstab or even mount it.
I've been suffering from the same problem for a long time until I found
a patch from Erik Andersen which automatically unregisters the sd device
once you unplug the USB device. It has changed my life :-)
Here it is for 2.4. I even wonder why we would not put this into mainline,
since having orphan devices brings nothing but confusion.
Regards,
Willy
This patch has been in use locally for quite some time now and
makes working with USB and 1394 mass-storage devices in 2.4.x a
much less painful experience. When devices are plugged in, they
are automagically connected up to the scsi subsystem without the
need to rescan all scsi busses or echo things into
/proc/scsi/scsi. When devices are unplugged, they are
automagically removed from the scsi subsystem, instead of hanging
around registered but with no media actually present.
-Erik
--
Erik B. Andersen http://codepoet-consulting.com/
--This message was written using 73% post-consumer electrons--
Signed-off-by: Erik Andersen [EMAIL PROTECTED]
--- orig/drivers/usb/storage/usb.c Fri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/usb/storage/usb.c Fri Sep 17 15:34:38 2004
@@ -744,6 +744,11 @@
/* unlock the device pointers */
up((ss-dev_semaphore));
+ /* Try to re-connect ourselves to the SCSI subsystem */
+ if (scsi_add_single_device(ss-host, 0, 0, 0))
+ printk(KERN_WARNING Unable to connect USB device to the
SCSI subsystem\n);
+ else
+ printk(KERN_WARNING USB device connected to the SCSI
subsystem\n);
} else {
/* New device -- allocate memory and initialize */
US_DEBUGP(New GUID GUID_FORMAT \n, GUID_ARGS(guid));
@@ -1057,6 +1062,12 @@
/* lock access to the device data structure */
down((ss-dev_semaphore));
+ /* Try to un-hook ourselves from the SCSI subsystem */
+ if (scsi_remove_single_device(ss-host, 0, 0, 0))
+ printk(KERN_WARNING Unable to disconnect USB device from the SCSI
subsystem\n);
+ else
+ printk(KERN_WARNING USB device disconnected from the SCSI
subsystem\n);
+
/* release the IRQ, if we have one */
if (ss-irq_urb) {
US_DEBUGP(-- releasing irq URB\n);
--- orig/drivers/ieee1394/sbp2.cFri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/ieee1394/sbp2.cFri Sep 17 15:34:38 2004
@@ -231,7 +231,7 @@
* enable this define to make use of it. This provides better hotplug
* support. The mentioned patch is not part of the kernel proper though,
* because it is considered somewhat of a hack. */
-//#define SBP2_USE_SCSI_ADDREM_HACK
+#define SBP2_USE_SCSI_ADDREM_HACK
/*
--- orig/drivers/scsi/scsi_syms.c Fri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/scsi/scsi_syms.c Fri Sep 17 15:34:38 2004
@@ -104,3 +104,9 @@
extern int scsi_delete_timer(Scsi_Cmnd *);
EXPORT_SYMBOL(scsi_add_timer);
EXPORT_SYMBOL(scsi_delete_timer);
+
+/* Support for hot plugging and unplugging devices -- safe for
+ * ieee1394 or USB devices, but probably not for normal SCSI... */
+EXPORT_SYMBOL(scsi_add_single_device);
+EXPORT_SYMBOL(scsi_remove_single_device);
+
--- orig/drivers/scsi/hosts.h Fri Sep 17 15:34:38 2004
+++ linux-2.4.27/drivers/scsi/hosts.h Fri Sep 17 15:34:38 2004
@@ -535,6 +535,13 @@
int scsi_register_device(struct Scsi_Device_Template * sdpnt);
void scsi_deregister_device(struct Scsi_Device_Template * tpnt);
+/* Support for hot plugging and unplugging devices -- safe for
+ * ieee1394 or USB devices, but probably not for normal SCSI... */
+extern int scsi_add_single_device(struct Scsi_Host *shpnt,
+ int channel, int id, int lun);
+extern int scsi_remove_single_device(struct Scsi_Host *shpnt,
+ int channel, int id, int lun);
+
/* These are used by loadable modules */
extern int scsi_register_module(int, void *);
extern int scsi_unregister_module(int, void *);
---
Re: Problem with usb-storage and /dev/sd?
Hi Willy :) * Willy Tarreau [EMAIL PROTECTED] dixit: That's not possible. sd_mod will assign different devices for different USB gadgets, and that's my problem in the first case!. If I plug my USB-whatever, it gets assigned /dev/sda1 (for the first partition, I mean). If I unplug it and, after that, I plug any other USB device, it gets assigned /dev/sdb1, etc. Don't know if the culprit is usb-storage or sd_mod :? The problem is that I cannot know about which device was assigned (at least in 2.4.x) so I can modify fstab or even mount it. I've been suffering from the same problem for a long time until I found a patch from Erik Andersen which automatically unregisters the sd device once you unplug the USB device. It has changed my life :-) Thanks! Unfortunately, it solves only half of my problem. If I plug *two* USB storage devices, the second will fail (well, it won't be assigned the correct device). The perfect solution is to always use the same dev entry for the same USB device, but I need sysfs for that (AFAIK), just like udev does. Here it is for 2.4. I even wonder why we would not put this into mainline, since having orphan devices brings nothing but confusion. Don't know : Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Sat, 13 Aug 2005 12:06:16 +0200 (CEST), Bodo Eggert <[EMAIL PROTECTED]> wrote: > On Fri, 12 Aug 2005, Pete Zaitcev wrote: > > On Fri, 12 Aug 2005 12:49:28 +0200, Bodo Eggert <[EMAIL PROTECTED]> wrote: > > > > > Which label will a random USB stick have? > > > > GUID, I presume. > > A global unique ID won't work out to make all USB mass storage devices > appear under a common mountpoint, especially if it is recreated while > "formating" it. That is correct, but not what Dervish wanted. He wanted to mount them on separate pre-assigned mount points. If you want all of them to mount on the same place, just use /dev/sda1! -- Pete - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Fri, 12 Aug 2005, Pete Zaitcev wrote: > On Fri, 12 Aug 2005 12:49:28 +0200, Bodo Eggert <[EMAIL PROTECTED]> wrote: > > > Which label will a random USB stick have? > > GUID, I presume. A global unique ID won't work out to make all USB mass storage devices appear under a common mountpoint, especially if it is recreated while "formating" it. -- The enemy diversion you have been ignoring will be the main attack. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Fri, 12 Aug 2005, Pete Zaitcev wrote: On Fri, 12 Aug 2005 12:49:28 +0200, Bodo Eggert [EMAIL PROTECTED] wrote: Which label will a random USB stick have? GUID, I presume. A global unique ID won't work out to make all USB mass storage devices appear under a common mountpoint, especially if it is recreated while formating it. -- The enemy diversion you have been ignoring will be the main attack. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Sat, 13 Aug 2005 12:06:16 +0200 (CEST), Bodo Eggert [EMAIL PROTECTED] wrote: On Fri, 12 Aug 2005, Pete Zaitcev wrote: On Fri, 12 Aug 2005 12:49:28 +0200, Bodo Eggert [EMAIL PROTECTED] wrote: Which label will a random USB stick have? GUID, I presume. A global unique ID won't work out to make all USB mass storage devices appear under a common mountpoint, especially if it is recreated while formating it. That is correct, but not what Dervish wanted. He wanted to mount them on separate pre-assigned mount points. If you want all of them to mount on the same place, just use /dev/sda1! -- Pete - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Pete :) * Pete Zaitcev <[EMAIL PROTECTED]> dixit: > > Which label will a random USB stick have? > GUID, I presume. Ask Andries Brouwer, he hacked on that, IIRC. > Actually msdos has on-disk format for user-settable labels in > the way analoguous to tune2fs -L label. I just do not know if > our implementation recognizes them. My vfat's in my MP3 player and the USB stick doesn't have a label, at least not one usable by 'mount' (which only uses ext2/3 labels and xfs labels AFAIK). Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net & http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Fri, 12 Aug 2005 12:49:28 +0200, Bodo Eggert <[EMAIL PROTECTED]> wrote: > Which label will a random USB stick have? GUID, I presume. Ask Andries Brouwer, he hacked on that, IIRC. Actually msdos has on-disk format for user-settable labels in the way analoguous to tune2fs -L label. I just do not know if our implementation recognizes them. -- Pete - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Horst von Brand <[EMAIL PROTECTED]> wrote: > DervishD <[EMAIL PROTECTED]> wrote: >> * Pete Zaitcev <[EMAIL PROTECTED]> dixit: >> > On Wed, 10 Aug 2005 21:22:43 +0200, DervishD <[EMAIL PROTECTED]> wrote: >> > > I'm not using hotplug currently so... how can I make the USB >> > > subsystem to assign always the same /dev/sd? entry to my USB Mass >> > > storage devices? [...] >> > You cannot. Just mount by label or something... > >> Mounting by label won't work, the problem is the /dev entry, >> which changes every time. > > That's why you should mount by label... Which label will a random USB stick have? -- Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF verbreiteten Lügen zu sabotieren. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Horst von Brand [EMAIL PROTECTED] wrote: DervishD [EMAIL PROTECTED] wrote: * Pete Zaitcev [EMAIL PROTECTED] dixit: On Wed, 10 Aug 2005 21:22:43 +0200, DervishD [EMAIL PROTECTED] wrote: I'm not using hotplug currently so... how can I make the USB subsystem to assign always the same /dev/sd? entry to my USB Mass storage devices? [...] You cannot. Just mount by label or something... Mounting by label won't work, the problem is the /dev entry, which changes every time. That's why you should mount by label... Which label will a random USB stick have? -- Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF verbreiteten Lügen zu sabotieren. - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Fri, 12 Aug 2005 12:49:28 +0200, Bodo Eggert [EMAIL PROTECTED] wrote: Which label will a random USB stick have? GUID, I presume. Ask Andries Brouwer, he hacked on that, IIRC. Actually msdos has on-disk format for user-settable labels in the way analoguous to tune2fs -L label. I just do not know if our implementation recognizes them. -- Pete - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Pete :) * Pete Zaitcev [EMAIL PROTECTED] dixit: Which label will a random USB stick have? GUID, I presume. Ask Andries Brouwer, he hacked on that, IIRC. Actually msdos has on-disk format for user-settable labels in the way analoguous to tune2fs -L label. I just do not know if our implementation recognizes them. My vfat's in my MP3 player and the USB stick doesn't have a label, at least not one usable by 'mount' (which only uses ext2/3 labels and xfs labels AFAIK). Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
DervishD <[EMAIL PROTECTED]> wrote: > * Pete Zaitcev <[EMAIL PROTECTED]> dixit: > > On Wed, 10 Aug 2005 21:22:43 +0200, DervishD <[EMAIL PROTECTED]> wrote: > > > I'm not using hotplug currently so... how can I make the USB > > > subsystem to assign always the same /dev/sd? entry to my USB Mass > > > storage devices? [...] > > You cannot. Just mount by label or something... > Mounting by label won't work, the problem is the /dev entry, > which changes every time. That's why you should mount by label... > > Better yet, install something like Fedora Core 4, which uses HAL, > > and forget about it. The fstab-sync takes care of the rest. > > Oh no, thanks, I've already used Fedora and it only reinforced my > feeling about distros: I prefer my do-it-yourself box ;) In Fedora rawhide it just works. I can't see how the knot you are tying yourself into by diy is any better... -- Dr. Horst H. von Brand User #22616 counter.li.org Departamento de Informatica Fono: +56 32 654431 Universidad Tecnica Federico Santa Maria +56 32 654239 Casilla 110-V, Valparaiso, ChileFax: +56 32 797513 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Greg :) * Greg KH <[EMAIL PROTECTED]> dixit: > On Thu, Aug 11, 2005 at 12:06:16AM +0200, DervishD wrote: > > * Tomasz Torcz <[EMAIL PROTECTED]> dixit: > > > That's what udev is for. > > I know, but I use a 2.4.x kernel (which I didn't mention in my > > original message, sorry O:)), and udev needs a 2.6.x kernel, am I > > wrong? > That is correct, udev needs 2.6. So, with 2.4 you are on your own here, > sorry. Any way of forcing usb-storage to assign a particular device to a recently plugged USB gadget? Wait a minute: hotplug events *include* the name of the assigned device, am I wrong? Then I can deal with the issue... I'll post my solution to the list, if any ;) Thanks :) Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net & http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Pete :) * Pete Zaitcev <[EMAIL PROTECTED]> dixit: > On Wed, 10 Aug 2005 21:22:43 +0200, DervishD <[EMAIL PROTECTED]> wrote: > > I'm not using hotplug currently so... how can I make the USB > > subsystem to assign always the same /dev/sd? entry to my USB Mass > > storage devices? [...] > You cannot. Just mount by label or something... Mounting by label won't work, the problem is the /dev entry, which changes every time. > Better yet, install something like Fedora Core 4, which uses HAL, > and forget about it. The fstab-sync takes care of the rest. Oh no, thanks, I've already used Fedora and it only reinforced my feeling about distros: I prefer my do-it-yourself box ;) Thanks :))) Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net & http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Pete :) * Pete Zaitcev [EMAIL PROTECTED] dixit: On Wed, 10 Aug 2005 21:22:43 +0200, DervishD [EMAIL PROTECTED] wrote: I'm not using hotplug currently so... how can I make the USB subsystem to assign always the same /dev/sd? entry to my USB Mass storage devices? [...] You cannot. Just mount by label or something... Mounting by label won't work, the problem is the /dev entry, which changes every time. Better yet, install something like Fedora Core 4, which uses HAL, and forget about it. The fstab-sync takes care of the rest. Oh no, thanks, I've already used Fedora and it only reinforced my feeling about distros: I prefer my do-it-yourself box ;) Thanks :))) Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Greg :) * Greg KH [EMAIL PROTECTED] dixit: On Thu, Aug 11, 2005 at 12:06:16AM +0200, DervishD wrote: * Tomasz Torcz [EMAIL PROTECTED] dixit: That's what udev is for. I know, but I use a 2.4.x kernel (which I didn't mention in my original message, sorry O:)), and udev needs a 2.6.x kernel, am I wrong? That is correct, udev needs 2.6. So, with 2.4 you are on your own here, sorry. Any way of forcing usb-storage to assign a particular device to a recently plugged USB gadget? Wait a minute: hotplug events *include* the name of the assigned device, am I wrong? Then I can deal with the issue... I'll post my solution to the list, if any ;) Thanks :) Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
DervishD [EMAIL PROTECTED] wrote: * Pete Zaitcev [EMAIL PROTECTED] dixit: On Wed, 10 Aug 2005 21:22:43 +0200, DervishD [EMAIL PROTECTED] wrote: I'm not using hotplug currently so... how can I make the USB subsystem to assign always the same /dev/sd? entry to my USB Mass storage devices? [...] You cannot. Just mount by label or something... Mounting by label won't work, the problem is the /dev entry, which changes every time. That's why you should mount by label... Better yet, install something like Fedora Core 4, which uses HAL, and forget about it. The fstab-sync takes care of the rest. Oh no, thanks, I've already used Fedora and it only reinforced my feeling about distros: I prefer my do-it-yourself box ;) In Fedora rawhide it just works. I can't see how the knot you are tying yourself into by diy is any better... -- Dr. Horst H. von Brand User #22616 counter.li.org Departamento de Informatica Fono: +56 32 654431 Universidad Tecnica Federico Santa Maria +56 32 654239 Casilla 110-V, Valparaiso, ChileFax: +56 32 797513 - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Thu, Aug 11, 2005 at 12:06:16AM +0200, DervishD wrote: > Hi Tomasz :) > > * Tomasz Torcz <[EMAIL PROTECTED]> dixit: > > On Wed, Aug 10, 2005 at 09:22:43PM +0200, DervishD wrote: > > > The problem is that if I plug my USB memory, unplug it and plug > > > my MP3 player, it gets /dev/sdb this time, not /dev/sda. The mess is > > > even greater if I plug my card reader, which has four LUN's... > > That's what udev is for. > > I know, but I use a 2.4.x kernel (which I didn't mention in my > original message, sorry O:)), and udev needs a 2.6.x kernel, am I > wrong? That is correct, udev needs 2.6. So, with 2.4 you are on your own here, sorry. thanks, greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Wed, 10 Aug 2005 21:22:43 +0200, DervishD <[EMAIL PROTECTED]> wrote: > I'm not using hotplug currently so... how can I make the USB > subsystem to assign always the same /dev/sd? entry to my USB Mass > storage devices? [...] You cannot. Just mount by label or something... Better yet, install something like Fedora Core 4, which uses HAL, and forget about it. The fstab-sync takes care of the rest. -- Pete - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
Hi Tomasz :) * Tomasz Torcz <[EMAIL PROTECTED]> dixit: > On Wed, Aug 10, 2005 at 09:22:43PM +0200, DervishD wrote: > > The problem is that if I plug my USB memory, unplug it and plug > > my MP3 player, it gets /dev/sdb this time, not /dev/sda. The mess is > > even greater if I plug my card reader, which has four LUN's... > That's what udev is for. I know, but I use a 2.4.x kernel (which I didn't mention in my original message, sorry O:)), and udev needs a 2.6.x kernel, am I wrong? > Go figure how to udev-enable your distribution. I have a do-it-yourself Linux box, so setting up udev is not much of a problem as long as the kernel supports it. If udev doesn't use any kernel magic (that is, it only uses /sbin/hotplug), how the heck does it know which /dev/sd? the *kernel* assigned to my recently plugged USB device? How can it influenciate which device is assigned *by the kernel*? I assume that it needs some magic from the kernel and so it only works for 2.6.x : In fact, if it uses sysfs, it still needs a 2.6.x for that, am I wrong? I'll take a look anyway, thanks a lot for your message and help :) Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net & http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Wed, Aug 10, 2005 at 09:22:43PM +0200, DervishD wrote: > If I plug my MP3 player (USB), the usb-storage module assigns it > device /dev/sda, which is right because I have it configured as such > in my /etc/fstab. Well, another day, another boot and I plug my USB > memory stick, and usb-storage assigns it device /dev/sda, quite cool > because I have it configured as such in my /etc/fstab, too. > > The problem is that if I plug my USB memory, unplug it and plug > my MP3 player, it gets /dev/sdb this time, not /dev/sda. The mess is > even greater if I plug my card reader, which has four LUN's... That's what udev is for. Example rule to give my memory stick persistent name: BUS="usb", SYSFS_serial="5B4B06010122", NAME="pendriveZDZ%n", GROUP="floppy", MODE="0662", RUN+= "/sbin/udev_run_hotplugd" Go figure how to udev-enable your distribution. -- Tomasz Torcz "Never underestimate the bandwidth of a station [EMAIL PROTECTED]wagon filled with backup tapes." -- Jim Gray pgpJsoYIX7vPK.pgp Description: PGP signature
Re: Problem with usb-storage and /dev/sd?
On Wed, Aug 10, 2005 at 09:22:43PM +0200, DervishD wrote: If I plug my MP3 player (USB), the usb-storage module assigns it device /dev/sda, which is right because I have it configured as such in my /etc/fstab. Well, another day, another boot and I plug my USB memory stick, and usb-storage assigns it device /dev/sda, quite cool because I have it configured as such in my /etc/fstab, too. The problem is that if I plug my USB memory, unplug it and plug my MP3 player, it gets /dev/sdb this time, not /dev/sda. The mess is even greater if I plug my card reader, which has four LUN's... That's what udev is for. Example rule to give my memory stick persistent name: BUS=usb, SYSFS_serial=5B4B06010122, NAME=pendriveZDZ%n, GROUP=floppy, MODE=0662, RUN+= /sbin/udev_run_hotplugd Go figure how to udev-enable your distribution. -- Tomasz Torcz Never underestimate the bandwidth of a station [EMAIL PROTECTED]wagon filled with backup tapes. -- Jim Gray pgpJsoYIX7vPK.pgp Description: PGP signature
Re: Problem with usb-storage and /dev/sd?
Hi Tomasz :) * Tomasz Torcz [EMAIL PROTECTED] dixit: On Wed, Aug 10, 2005 at 09:22:43PM +0200, DervishD wrote: The problem is that if I plug my USB memory, unplug it and plug my MP3 player, it gets /dev/sdb this time, not /dev/sda. The mess is even greater if I plug my card reader, which has four LUN's... That's what udev is for. I know, but I use a 2.4.x kernel (which I didn't mention in my original message, sorry O:)), and udev needs a 2.6.x kernel, am I wrong? Go figure how to udev-enable your distribution. I have a do-it-yourself Linux box, so setting up udev is not much of a problem as long as the kernel supports it. If udev doesn't use any kernel magic (that is, it only uses /sbin/hotplug), how the heck does it know which /dev/sd? the *kernel* assigned to my recently plugged USB device? How can it influenciate which device is assigned *by the kernel*? I assume that it needs some magic from the kernel and so it only works for 2.6.x : In fact, if it uses sysfs, it still needs a 2.6.x for that, am I wrong? I'll take a look anyway, thanks a lot for your message and help :) Raúl Núñez de Arenas Coronado -- Linux Registered User 88736 | http://www.dervishd.net http://www.pleyades.net http://www.gotesdelluna.net It's my PC and I'll cry if I want to... - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Wed, 10 Aug 2005 21:22:43 +0200, DervishD [EMAIL PROTECTED] wrote: I'm not using hotplug currently so... how can I make the USB subsystem to assign always the same /dev/sd? entry to my USB Mass storage devices? [...] You cannot. Just mount by label or something... Better yet, install something like Fedora Core 4, which uses HAL, and forget about it. The fstab-sync takes care of the rest. -- Pete - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Problem with usb-storage and /dev/sd?
On Thu, Aug 11, 2005 at 12:06:16AM +0200, DervishD wrote: Hi Tomasz :) * Tomasz Torcz [EMAIL PROTECTED] dixit: On Wed, Aug 10, 2005 at 09:22:43PM +0200, DervishD wrote: The problem is that if I plug my USB memory, unplug it and plug my MP3 player, it gets /dev/sdb this time, not /dev/sda. The mess is even greater if I plug my card reader, which has four LUN's... That's what udev is for. I know, but I use a 2.4.x kernel (which I didn't mention in my original message, sorry O:)), and udev needs a 2.6.x kernel, am I wrong? That is correct, udev needs 2.6. So, with 2.4 you are on your own here, sorry. thanks, greg k-h - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
