Udev rule for external hard-drive
in [Debian]
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From: Brian Troutwine on 10 Aug 2010 01:50 Hello all, I'm attempting a rule for my new external hard-drive, but it doesn't seem to be taking. For reference, I am using Debian 5.0.5 am following the wiki's instructions[1] and am using the kernel developers' guide as a reference[2]. My udevinfo output: > $ udevinfo -a -p /sys/block/sdb/sdb1/ | grep serial > ATTRS{serial}=="57442D575839314133303236343538" > ATTRS{serial}=="0000:00:1a.7" And the custom rule file 10-local.rules: > SUBSYSTEM=="block", SUBSYSTEMS=="scsi", ATTRS{serial}=="57442D575839314133303236343538", SYMLINK+="external%n" After restarting Udev I'm greeted with the following dmesg output: > [138065.272612] scsi10 : SCSI emulation for USB Mass Storage devices > [138065.272965] usb 3-3: New USB device found, idVendor=1058, idProduct=1010 > [138065.272972] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [138065.272978] usb 3-3: Product: External HDD > [138065.272983] usb 3-3: Manufacturer: Western Digital > [138065.272988] usb 3-3: SerialNumber: 57442D575839314133303236343538 > [138065.273008] usb-storage: device found at 9 > [138065.273012] usb-storage: waiting for device to settle before scanning > [138070.327947] usb-storage: device scan complete > [138070.328938] scsi 10:0:0:0: Direct-Access WD 1200BEV External 1.75 PQ: 0 ANSI: 4 > [138070.334995] sd 10:0:0:0: [sdb] 234441648 512-byte hardware sectors (120034 MB) > [138070.336676] sd 10:0:0:0: [sdb] Write Protect is off > [138070.336676] sd 10:0:0:0: [sdb] Mode Sense: 23 00 00 00 > [138070.336676] sd 10:0:0:0: [sdb] Assuming drive cache: write through > [138070.337550] sd 10:0:0:0: [sdb] 234441648 512-byte hardware sectors (120034 MB) > [138070.338045] sd 10:0:0:0: [sdb] Write Protect is off > [138070.338045] sd 10:0:0:0: [sdb] Mode Sense: 23 00 00 00 > [138070.338045] sd 10:0:0:0: [sdb] Assuming drive cache: write through > [138070.338045] sdb: sdb1 > [138070.376812] sd 10:0:0:0: [sdb] Attached SCSI disk Clearly I'm doing something wrong. Can someone point me in the right direction? Thanks, Brian --- [1] http://wiki.debian.org/AutoFs [2] http://www.reactivated.net/writing_udev_rules.html#udevinfo -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/AANLkTik=p=FWiKayKm4tuFRw8fOdsMYL_GEWNWe6gyk+(a)mail.gmail.com
From: Camaleón on 10 Aug 2010 04:30 On Mon, 09 Aug 2010 22:45:32 -0700, Brian Troutwine wrote: > I'm attempting a rule for my new external hard-drive, but it doesn't > seem to be taking. For reference, I am using Debian 5.0.5 am following > the wiki's instructions[1] and am using the kernel developers' guide as > a reference[2]. My udevinfo output: > >> $ udevinfo -a -p /sys/block/sdb/sdb1/ | grep serial >> ATTRS{serial}=="57442D575839314133303236343538" >> ATTRS{serial}=="0000:00:1a.7" Put the full output of the command: *** udevinfo -a -p /sys/block/sdb/sdb1/ *** And upload the result to pastebin (or any other online service) to avoid flood the list with tons of data :-) http://www.pastebin.com > And the custom rule file 10-local.rules: > >> SUBSYSTEM=="block", SUBSYSTEMS=="scsi", >> ATTRS{serial}=="57442D575839314133303236343538", SYMLINK+="external%n" Care about this (comes from your [2] link): "...while it is legal to combine the attributes from the device in question and a single parent device, you cannot mix-and-match attributes from multiple parent devices - your rule will not work" So, SUBSYSTEMS=="scsi" and ATTRS{serial} =="57442D575839314133303236343538" have to be in the same "parent device" block. > After restarting Udev I'm greeted with the following dmesg output: (...) >> [138070.338045] sdb: sdb1 >> [138070.376812] sd 10:0:0:0: [sdb] Attached SCSI disk > > Clearly I'm doing something wrong. Can someone point me in the right > direction? What is your main goal? Just giving the volume an static name? :-? Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/pan.2010.08.10.08.27.06(a)gmail.com
From: Brian Troutwine on 10 Aug 2010 12:50 On Tue, Aug 10, 2010 at 1:27 AM, Camaleón <noelamac(a)gmail.com> wrote: > On Mon, 09 Aug 2010 22:45:32 -0700, Brian Troutwine wrote: > >> I'm attempting a rule for my new external hard-drive, but it doesn't >> seem to be taking. For reference, I am using Debian 5.0.5 am following >> the wiki's instructions[1] and am using the kernel developers' guide as >> a reference[2]. My udevinfo output: >> >>> $ udevinfo -a -p /sys/block/sdb/sdb1/ | grep serial >>>   ATTRS{serial}=="57442D575839314133303236343538" >>>   ATTRS{serial}=="0000:00:1a.7" > > Put the full output of the command: > > *** > udevinfo -a -p /sys/block/sdb/sdb1/ > *** > > And upload the result to pastebin (or any other online service) to avoid > flood the list with tons of data :-) > > http://www.pastebin.com Clearly that would have been a capital idea. Here you are: http://paste.lisp.org/display/113377 >> And the custom rule file 10-local.rules: >> >>> SUBSYSTEM=="block", SUBSYSTEMS=="scsi", >>> ATTRS{serial}=="57442D575839314133303236343538", SYMLINK+="external%n" > > Care about this (comes from your [2] link): > > "...while it is legal to combine the attributes from the device in > question and a single parent device, you cannot mix-and-match attributes > from multiple parent devices - your rule will not work" > > So, SUBSYSTEMS=="scsi" and ATTRS{serial} > =="57442D575839314133303236343538" have to be in the same "parent device" > block. I _believe_ that it is, but I am new to reading udevinfo output. >> After restarting Udev I'm greeted with the following dmesg output: > > (...) > >>> [138070.338045]  sdb: sdb1 >>> [138070.376812] sd 10:0:0:0: [sdb] Attached SCSI disk >> >> Clearly I'm doing something wrong. Can someone point me in the right >> direction? > > What is your main goal? Just giving the volume an static name? :-? I'd like to give the volume a static name so that I can reliably point autofs at it. While I realize that I could simply use the entries in /dev/disk, I find it difficult to maintain the mental mapping of names to device, especially at a glance. Also, being able to write effective udev rules would be a handy skill. > Greetings, > > -- > Camaleón > > > -- > To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian..org > Archive: http://lists.debian.org/pan.2010.08.10.08.27.06(a)gmail.com > > Good day, Brian -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/AANLkTi?i5gL?TythjkXThLJYK3WqEH9rFROznc0F(a)mail.gmail.com
From: Camaleón on 10 Aug 2010 13:10 On Tue, 10 Aug 2010 09:48:35 -0700, Brian Troutwine wrote: > On Tue, Aug 10, 2010 at 1:27 AM, Camaleón wrote: (...) >> Put the full output of the command: >> >> *** >> udevinfo -a -p /sys/block/sdb/sdb1/ >> *** >> >> And upload the result to pastebin (or any other online service) to >> avoid flood the list with tons of data :-) >> >> http://www.pastebin.com > > Clearly that would have been a capital idea. Here you are: > http://paste.lisp.org/display/113377 Good :-) (...) >> So, SUBSYSTEMS=="scsi" and ATTRS{serial} >> =="57442D575839314133303236343538" have to be in the same "parent >> device" block. > > I _believe_ that it is, but I am new to reading udevinfo output. Mmm, by reading the bunch of data you've sent, I don't think so. Look: ATTRS{serial}=="57442D575839314133303236343538" Is on the same "parent device" that: SUBSYSTEMS=="usb" But no "scsi". Try by correcting that and test again. It should be something like: *** SUBSYSTEM=="block", SUBSYSTEMS=="usb", ATTRS{serial}=="57442D575839314133303236343538", SYMLINK+="external%n" *** Greetings, -- Camaleón -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/pan.2010.08.10.17.08.36(a)gmail.com
From: Brian Troutwine on 10 Aug 2010 13:30 On Tue, Aug 10, 2010 at 10:08 AM, Camaleón <noelamac(a)gmail.com> wrote: > On Tue, 10 Aug 2010 09:48:35 -0700, Brian Troutwine wrote: > >> On Tue, Aug 10, 2010 at 1:27 AM, Camaleón wrote: > >> I _believe_ that it is, but I am new to reading udevinfo output. > > Mmm, by reading the bunch of data you've sent, I don't think so. Look: > > ATTRS{serial}=="57442D575839314133303236343538" > > Is on the same "parent device" that: > > SUBSYSTEMS=="usb" > > But no "scsi". Try by correcting that and test again. It should be > something like: > > *** > SUBSYSTEM=="block", SUBSYSTEMS=="usb", ATTRS{serial}=="57442D575839314133303236343538", SYMLINK+="external%n" > *** Ah, that was indeed the problem: bad subsystem. I was simply reading the udevinfo output incorrectly. Thank you, Camaleón. -- Brian -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/AANLkTim7NC139N4qHT7+kH1Le9fDL9nNjnT4k_Wi7hZS(a)mail.gmail.com
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