Партнёры:
Хостинг:
If you would like logs of what those `make' or `patch'
commands did, you can redirect output to a file. First,
find out what shell you're running:
`grep root /etc/passwd' and look for something like
`/bin/csh'.
If you use sh or bash,
(command) 2>&1 | tee (output file)
will place a copy of (command)'s output in the
file `(output file)'.
For csh or tcsh, use
(command) |& tee (output file)
For rc (Note: you probably do not use rc) it's
(command) >[2=1] | tee (output file)
Other than using floppy disks, there are several methods of testing out a new kernel without touching the old one. Unlike many other Unix flavors, LILO has the ability to boot a kernel from anywhere on the disk (if you have a large (500 MB or above) disk, please read over the LILO documentation on how this may cause problems). So, if you add something similar to
image = /usr/src/linux/arch/i386/boot/bzImage
label = new_kernel
to the end of your LILO configuration file, you can choose to run a newly
compiled kernel without touching your old /vmlinuz (after running
lilo, of course). The easiest way to tell LILO to boot a new
kernel is to press the shift key at bootup time (when it says
LILO on the screen, and nothing else), which gives you a prompt.
At this point, you can enter `new_kernel' to boot the new kernel.
If you wish to keep several different kernel source trees on your system at
the same time (this can take up a lot of disk space; be careful), the
most common way is to name them /usr/src/linux-x.y.z, where
x.y.z is the kernel version. You can then ``select'' a source
tree with a symbolic link; for example, `ln -sf linux-1.2.2
/usr/src/linux' would make the 1.2.2 tree current. Before creating a
symbolic link like this, make certain that the last argument to
ln is not a real directory (old symbolic links are fine); the
result will not be what you expect.
Russell Nelson (nelson@crynwr.com) summarizes the changes in new
kernel releases. These are short, and you might like to look at them
before an upgrade. They are available with anonymous ftp from
ftp://ftp.emlist.com in pub/kchanges or through the URL
http://www.crynwr.com/kchanges
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