* [Buildroot] [Bug 1771] Fakeroot and the target/generic/device_table.txt create bad device nodes.
2010-05-13 20:53 [Buildroot] [Bug 1771] New: Fakeroot and the target/generic/device_table.txt create bad device nodes bugzilla at busybox.net
@ 2010-05-21 21:44 ` bugzilla at busybox.net
2010-05-25 22:58 ` bugzilla at busybox.net
2010-06-05 15:19 ` bugzilla at busybox.net
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla at busybox.net @ 2010-05-21 21:44 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=1771
--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
I just made a test with the default target/generic/device_table.txt and the
result for hd* is good :
fs/dev$ ls -l hd*
brw-r----- 1 root root 3, 0 2010-05-21 23:31 hda
brw-r----- 1 root root 3, 1 2010-05-21 23:31 hda1
brw-r----- 1 root root 3, 10 2010-05-21 23:31 hda10
brw-r----- 1 root root 3, 11 2010-05-21 23:31 hda11
brw-r----- 1 root root 3, 12 2010-05-21 23:31 hda12
brw-r----- 1 root root 3, 13 2010-05-21 23:31 hda13
brw-r----- 1 root root 3, 14 2010-05-21 23:31 hda14
brw-r----- 1 root root 3, 2 2010-05-21 23:31 hda2
brw-r----- 1 root root 3, 3 2010-05-21 23:31 hda3
brw-r----- 1 root root 3, 4 2010-05-21 23:31 hda4
brw-r----- 1 root root 3, 5 2010-05-21 23:31 hda5
brw-r----- 1 root root 3, 6 2010-05-21 23:31 hda6
brw-r----- 1 root root 3, 7 2010-05-21 23:31 hda7
brw-r----- 1 root root 3, 8 2010-05-21 23:31 hda8
brw-r----- 1 root root 3, 9 2010-05-21 23:31 hda9
brw-r----- 1 root root 3, 64 2010-05-21 23:31 hdb
brw-r----- 1 root root 3, 65 2010-05-21 23:31 hdb1
brw-r----- 1 root root 3, 74 2010-05-21 23:31 hdb10
brw-r----- 1 root root 3, 75 2010-05-21 23:31 hdb11
brw-r----- 1 root root 3, 76 2010-05-21 23:31 hdb12
brw-r----- 1 root root 3, 77 2010-05-21 23:31 hdb13
brw-r----- 1 root root 3, 78 2010-05-21 23:31 hdb14
brw-r----- 1 root root 3, 66 2010-05-21 23:31 hdb2
brw-r----- 1 root root 3, 67 2010-05-21 23:31 hdb3
brw-r----- 1 root root 3, 68 2010-05-21 23:31 hdb4
brw-r----- 1 root root 3, 69 2010-05-21 23:31 hdb5
brw-r----- 1 root root 3, 70 2010-05-21 23:31 hdb6
brw-r----- 1 root root 3, 71 2010-05-21 23:31 hdb7
brw-r----- 1 root root 3, 72 2010-05-21 23:31 hdb8
brw-r----- 1 root root 3, 73 2010-05-21 23:31 hdb9
In the device list you pasted, the minor numbers are incorrect. hda should be
3:0, hda1 should be 3:1, hda2 3:2, hdb should be 3:64, hdb1 3:65, hdb2 3:66.
hdc is 22:0, hdc1 is 22:1, etc. See Documentation/devices.txt in the Linux
kernel source tree for the official reference.
So I don't see what's wrong in Buildroot. Could explain in more details what is
the problem for you ?
Thanks!
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* [Buildroot] [Bug 1771] Fakeroot and the target/generic/device_table.txt create bad device nodes.
2010-05-13 20:53 [Buildroot] [Bug 1771] New: Fakeroot and the target/generic/device_table.txt create bad device nodes bugzilla at busybox.net
2010-05-21 21:44 ` [Buildroot] [Bug 1771] " bugzilla at busybox.net
@ 2010-05-25 22:58 ` bugzilla at busybox.net
2010-06-05 15:19 ` bugzilla at busybox.net
2 siblings, 0 replies; 4+ messages in thread
From: bugzilla at busybox.net @ 2010-05-25 22:58 UTC (permalink / raw)
To: buildroot
https://bugs.busybox.net/show_bug.cgi?id=1771
--- Comment #2 from Andy Kennedy <akennedy@drs-tem.com> ---
(In reply to comment #1)
I attempted to e-mail this, but it looks like it didn't go through. . . so if
this is a dup, please forgive.
> --- Comment #1 from Thomas Petazzoni
> <thomas.petazzoni@free-electrons.com> ---
> I just made a test with the default
> target/generic/device_table.txt and the
> result for hd* is good :
Sorry, I thought I had articulated correctly. To restate: this problem ONLY
occurs with the building of a jffs2 filesystem. When I 'make tarroot' I get a
device tree with correctly populated device nodes. Only when I 'make
jffs2root' do I get funky minor numbers.
> In the device list you pasted, the minor numbers are
> incorrect. hda should be
> 3:0, hda1 should be 3:1, hda2 3:2, hdb should be 3:64, hdb1
> 3:65, hdb2 3:66.
> hdc is 22:0, hdc1 is 22:1, etc. See Documentation/devices.txt
> in the Linux
> kernel source tree for the official reference.
>
Yes, this was the reason for the bug report. These devices are being made
incorrectly.
More information, however, is that if I make the nodes myself in the <path to
target>/dev directory, modify buildroot/target/generic/device_table.txt to
EXCLUDE hd{a-c} and sd{a-c} then I get the devices correctly in the filesystem.
Which makes me wonder if fakeroot is the red herring and the real culprit is
actually makedevs.
Hopefully I have cleared something up for you.
Andy
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