i want to start playing with kexec and i've noticed some confusing
(and possibly erroneous) documentation.
first, i see that, when you configure a kernel you're about to
build, you can make it relocatable. with kexec, i'm assuming that
that only makes a difference with the kernel you are going to kexec
*to* -- whether or not the current kernel is relocatable is not
relevant, is that right?
next, from the man page for "kexec":
"Note: Compressed kernel images such as bzImage are not supported by
kexec. Use the uncompressed vmlinux."
excuse me? from what i can read, you certainly can load a
bzImage-format file, since the "-t" option to kexec supports that, as
you can see from "kexec --help".
finally, i found the following online example:
Thanks a lot topdog.. finnaly I got able to switch another kernel..I
used below command
kexec -l -t bzImage --command-line="ro root=/dev/VolGroup00/LogVol00"
\
--initrd="/boot/initrd-2.6.24.3-custom_test.img"
/boot/vmlinuz-2.6.24.3-custom_test
that doesn't seem to make sense, as the writer is using "-t bzImage"
while passing a regular vmlinuz-format kernel. or am i
misunderstanding this?
thanks.
rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry:
Have classroom, will lecture.
http://crashcourse.ca Waterloo, Ontario, CANADA
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