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The attached patch contains a few patches against udev, to remove
use of various XSI:isms and bash:isms, and to change two scripts form
/bin/bash to /bin/sh. None of the bash-scripts in test/ uses any
bash-specific functions as far as I know, but I didn't touch them since
they aren't used runtime.
Rationale:
* Both of the /bin/bash-scripts are totally free from bashisms, hence they
don't need to be /bin/bash; using /bin/sh instead helps (mainly)
embedded-people
* local and source are bash:isms (well, they exist in several other
shells as well, but they aren't part of POSIX or any of its extensions)
* -a in tests is an XSI-extension, not part of strict POSIX, and is
easily replaced by &&
| http://www.opengroup.org/onlinepubs/009695399/utilities/test.html
* Use of fgrep is deprecated in POSIX in favour of grep -F (though fgrep
will remain in use for a long time...)
| http://www.opengroup.org/onlinepubs/009695399/utilities/grep.html
The fgrep-change isn't really necessary, since fgrep can always be
implemented as a shell-script, but the rest of the changes would really
be appreciated.
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The file may not exist and errors would be spewed on the console.
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fix_expr: remove usage of expr in ide-devfs.sh, because it may be in
/usr/bin and not available at early boot time.
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Here we change the magic callout part number selector to the new
atribute syntax. The syntax to select the second part of the callout string:
'%2c' is now '%c{2}'
I think it's more clear and we no longer misuse the length argument.
The old syntax is still supported, but we should remove it some
time in the future.
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this patch corrects ide devices with number greater than 9 being linked
into wrong discs/discX directories (my hda10 device was in discs/disc1
directory)
it adds % into pattern for $DRIVE, so for example, hda10 is not eaten
to hda1, but to hda, and break in for cycle works for it
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Optimize the scripts reflecting the now more powerful rule logic,
cause we can combine all known fields now in any order:
The ide-devfs.sh is only executed if the kernel name matches with 'hd*':
BUS="ide", KERNEL="hd*", PROGRAM="/etc/udev/ide-devfs.sh %k %b %n", NAME="%k", SYMLINK="%1c %2c"
The name_cdrom.pl is only executed for ide and scsi devices, but not for a partition.
It exits with nonzero to skip the rule if the CD is not found:
KERNEL="[hs]d[a-z]", PROGRAM="name_cdrom.pl %M %m", NAME="%1c", SYMLINK="cdrom"
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replace CALLOUT by PROGRAM and fix old rule format
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I had too much time during the holidays, so I played a bit with udev. The
changes are like last time mostly on the init stuff. I'm sending you this as
a great diff which is just for comments.
What it does:
-fix a typo in Makefile
-use only one "grep -v" instead of many
-don't include BK-Files into release (shrinks the stuff to 30%!)
-add a new init script which is LSB compliant
-add some flags to choose which one to use
-use /etc/udev/udev.conf in Redhat init script as the source for the udev
directory. If this is not done then the init script may create a directory
which udev itself isn't using (I changed /udev to /Udev to avoid collisions
with /usr and ran into this)
-first check for sysfs_dir before creating udev_root (maybe someone else has
already fixed this, I saw this discussion on lkml)
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Attached is a patch for ide-devfs.sh,
The script is merged with the one from Martin Schlemmer, and cleaned up
by him, to create both types of symlinks with one single rule:
CALLOUT, BUS="ide", PROGRAM="/etc/udev/ide-devfs.sh %k %b %n", ID="hd*", NAME="%1c", SYMLINK="%2c %3c"
/udev/
|-- cdroms
| `-- cdrom0 -> ../hdc
|-- discs
| |-- disc0
| | |-- disc -> ../../hda
| | |-- part1 -> ../../hda1
| | |-- part2 -> ../../hda2
| | `-- part4 -> ../../hda4
| |-- disc1
| | |-- disc -> ../../hdb
| | `-- part1 -> ../../hdb1
| `-- disc2
| |-- disc -> ../../hde
| `-- part1 -> ../../hde1
|-- hda
|-- hda1
|-- hda2
|-- hda4
|-- hdb
|-- hdb1
|-- hdc
|-- hde
|-- hde1
`-- ide
|-- host0
| |-- bus0
| | |-- target0
| | | `-- lun0
| | | |-- disc -> ../../../../../hda
| | | |-- part1 -> ../../../../../hda1
| | | |-- part2 -> ../../../../../hda2
| | | `-- part4 -> ../../../../../hda4
| | `-- target1
| | `-- lun0
| | |-- disc -> ../../../../../hdb
| | `-- part1 -> ../../../../../hdb1
| `-- bus1
| `-- target0
| `-- lun0
| `-- cd -> ../../../../../hdc
`-- host2
`-- bus0
`-- target0
`-- lun0
|-- disc -> ../../../../../hde
`-- part1 -> ../../../../../hde1
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disc, part
Here is a experimental CALLOUT script for udev to create devfs nodes
for IDE-devices. Not that I need these, I just wanted to see if it works :)
The script is really stupid, no error handling, nothing more than
absolutely needed. The rule uses the 'k' format char of the previous
patch. The %D is not used, so the user can have disc or disk :)
this single line:
CALLOUT, BUS="ide", PROGRAM="/etc/udev/ide-devfs.sh %k %b %n", ID="hd*", NAME="%1c", SYMLINK="%2c"
creates the following on my machine with two hard disks, one DVD and a PCMCIA-compact-flash inserted:
/udev
|-- hda
|-- hda1
|-- hda2
|-- hda4
|-- hdb
|-- hdb1
|-- hdc
|-- hde
|-- hde1
`-- ide
|-- host0
| |-- bus0
| | |-- target0
| | | `-- lun0
| | | |-- disc -> ../../../../../hda
| | | |-- part1 -> ../../../../../hda1
| | | |-- part2 -> ../../../../../hda2
| | | `-- part4 -> ../../../../../hda4
| | `-- target1
| | `-- lun0
| | |-- disc -> ../../../../../hdb
| | `-- part1 -> ../../../../../hdb1
| `-- bus1
| `-- target0
| `-- lun0
| `-- cd -> ../../../../../hdc
`-- host2
`-- bus0
`-- target0
`-- lun0
|-- disc -> ../../../../../hde
`-- part1 -> ../../../../../hde1
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