Những câu hỏi thường gặp về Linux
If you wish to enable or disable core dumping for all processes bởi default, you can change the default
setting in [linux/sched.h]. Refer to definition of
INIT_TASK
, và look also in [linux/resource.h].
PAM support optimizes the system’s environment, including the amount of memory a user is allowed.
In some những bản phân phối this parameter is configurable in the
/etc/security/limits.conf
file. For more information, refer to the Linux Administrator’s Security Guide. (“Tài liệu ở đâu?”)
H:
Làm thế nào để nâng cấp/biên dịch lại hạt nhân
Đ:
See the Kernel HOWTO or the
README
files which come with the kernel release on
ftp.cs.helsinki.fi/pub/Software/Linux/Kernel/
và mirrors. (See “FTP của Linux ở đâu?”)
You may already have a version of the kernel source code installed on your system, but if it is part of a
standard bản phân phối it is likely to be somewhat out of date (this is not a problem if you only want a
custom configured kernel, but it probably is if you need to upgrade.)
With newer kernels you can (and should) make all of the following targets. Don’t forget that you can
specify multiple targets with one command.
$ make clean dep install modules modules_install
Also remember to update the module dependencies.
$ depmod -a
This command can be run automatically tại boot time. On Debian/GNU Linux systems, the command is
part of the [/etc/init.d/modutils] script, và can be linked appropriately in the [/etc/rc]x[.d/] directories.
For more information on depmod, see the manual page.
Make sure you are using the most recent version of the modutils utilities, as well as all other supporting
packages. Refer to the file [Documentation/Changes] in the kernel source tree for specifics, và be sure to
consult the
README
file in the modutils package.
Remember that to make the new kernel boot you must run lilo after copying the kernel into your root
partition. The Makefile in some kernels have a special
zlilo
target for this; try:
$ make zlilo
On current systems, however, you can simply copy the [zImage] or [bzImage] file (in [arch/i386/boot/]
to the [/boot/] directory on the root file system, or to a floppy using the dd command. Refer also to the
question, How do I get LILO to boot the kernel image?
Kernel version numbers with an odd minor version (ie, 1.1.x, 1.3.x) are the testing releases; stable
production kernels have even minor versions (1.0.x, 1.2.x). If you want to try the testing kernels you
should probably subscribe to the linux-kernel mailing list. (“Mailing List ở đâu?”)
The Web site http://www.kernelnotes.org/ has lots of information và links to other sites that provide
information about Linux kernel updates.
55
