Mac OS X comes with a couple of utilities you can use to work with ASL from your nearest shell prompt.
- Logging to system.log is controlled by the /etc/asl.conf file. The default is to send all kernel messages to system.log. If you add a priority level restriction, the trivial system complaints won't be logged. Edit the file /etc/asl.conf and find a line that looks like this? = Sender kernel file system.log and change it to.
- Under Mac OS X 10.5.6 Apple has included a new set of log functions in the 'ASL' logging method and API. These new functions are run by the 'aslmanager' process, which is invoked immediately after.
- RehabMan-MaciASL-2017-0117.zip: 3.4 MB: RehabMan: 92149: 2017-01-17.
Nov 10, 2011 OS X groups, subgroups and GeneratedUIDs; Using netgroups to control login and admin privile. OS X Service ACLs com.apple.access. Compiling C libraries for use in python modules on. OS X logging: asl.conf, syslog.conf, syslog master. OS X Terminal screwed up command history in iPytho. Equivalent of 'watch' command for OS X.
The older of the two is logger(1), a user interface on the older syslog(3) API. This utility is write-only; it only lets you make entries, not review previous entries. (This makes sense: Historically, syslog wrote its output to a text file that you could tail, view, or grep; you didn’t need a separate utility to read it in any way.)
The newer of the two is syslog(1). As I mentioned in the first post, the name is a bit misleading, because it’s actually built on the ASL API, not syslog(3).
Like logger, syslog lets you write (send) to the log. The usage for that is:
syslog -s -k keyvalue
Note the -s flag, for send.
Unlike logger, you can also read from (search) the log. As with
asl_set
vs. asl_set_query
, you can specify a comparison operator, or leave it out and default to equality testing. To search, simply leave out that -s argument.- syslog -k keyvalue
- syslog -k keyoperatorvalue
Asl For Os X 7
![10.12 10.12](/uploads/1/2/6/5/126555550/814030549.jpg)
In all cases, you can specify multiple key-value pairs. For searching, the criteria are joined by logical AND (just like with the ASL API underneath).
syslog also provides a -w switch that you can use to poll (“watch”) the database repeatedly. As I mentioned above, polling is the only way to do that with the current API.
Finally, syslog also provides a -c switch to configure syslogd’s filter masks:
- syslog -c process off
- syslog -c processnew_value
The possible values for process are:
- 0
- Master filter
- “syslogd” or “syslog”
- Data store filter
- Non-zero number
- Per-process filter of process with that PID
- Anything else
- Per-process filter of process with that name
You must be root (or use sudo) to change the master or data store filter, or (as you might have expected) the per-process filter of a process owned by root. Surprisingly, however, you can set the per-process filter of a process you don’t own, as long as it isn’t owned by root. I believe that this is either a bug or something they didn’t consider (for whatever reason), and have filed it as such.
The other argument must be one of:
- “off”
- Turns the filter off (of course).
- A list of numbers, separated by commas (e.g., “0,1,2,4”)
- Sets the filter to allow only those levels (bits), identified by number.
- A string of characters from the set “pacexwnid” (e.g., “pacw”)
- Sets the filter to allow only those levels, identified by name (where ‘p’, standing for “Panic”, is syslog(1)’s name for Emergency, and ‘x’ is a synonym for Error).
- A hyphen, followed by one of the aforementioned letters (e.g., “–w”)*
- Every level up to and including that level (i.e.,
ASL_FILTER_MASK_UPTO(…)
); for example, “-d”, meaning “everything up to Debug” (equivalent to everything)
* Note that the first two examples (“0,1,2,4” and “pacw”) skip Error, but the third one (“-w”) includes it, since the range syntax cannot exclude any bit within the range. ↶
Next in the ASL series: Test apps!
This Red Hat Enterprise Linux 4 (RHEL4) and CentOS 4.x installation guide can be used on the Marquis M815, M816 and M818. Note: Only RHEL4 Update 1 or Update 2 is supported.
The ASL RHEL4/CentOS 4.x Device Driver CD is required to install the operating system. The latest RHEL4/CentOS 4.x Device driver CD can be downloaded here. Both 32-bit and 64-bit versions are provided.
Asl For Ostrich
To install RHEL4 or CentOS 4.x, use the following steps.
- Boot RHEL4 or CentOS 4.x CD #1
- At the installation prompt, enter 'linux dd'
- When prompt for a driver disk, select Yes
- When prompt to insert the driver disk into /dev/hdc, remove RHEL4 or CentOS 4.x CD #1 and insert the ASL RHEL4/CentOS 4.x Device Driver CD. Then select OK
- When prompt to manually select the driver, select Manually Choose
- Select nForce Ethernet Driver (forcedeth) and select OK
- When prompt to load any more driver disks, select Yes
- When prompt to insert the driver disk into /dev/hdc, select OK
- When prompt to manually select the driver, select Manually Choose
- Select nVidia nForce SATA controllers (sata_nv) and select OK
- When prompt to load any more driver disks, select No
- Eject the ASL RHEL4/CentOS 4.x Device Driver CD
- Insert RHEL4 or Cent OS 4.x CD #1
- Continue the OS installation
Once completed and the system is restarted, the customization phase begins. At the Display configuration, accept the default settings below.
- Unknown monitor with VESA driver (generic)
- Resolution [800x600]
- Color Depth [Million of Colors]
Because the onboard GeForce6 GPU is not supported in the RHEL4/CentOS 4.x Xorg X Server, it is necessary to install the Nvidia binary driver manually. The installation guide is provided in a separate document here.
Note: Do not use the Linux control panel to customize the display such as changing screen resolution or setting monitor parameters. It will not work because the open source tools do not support the Nvidia binary driver. To change the display setting, edit the X configuration file manually as documented in the Nvidia binary installation guide.
Special Notes:
- Audio is not supported.
- ACPI is not supported due to a motherboard BIOS bug.
- The Ethernet driver included in the RHEL4 kernel is very old. It will not detect the onboard nForce4 Gigabit controller. In addition, the driver is buggy. To avoid problem with the network connection, it is necessary to compile the ASL supplied forcedeth driver after updating the kernel to a newer version.To compile the ASL supplied forcedeth driver, refer to the FAQ below: