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Old 08-02-2009, 05:47 PM   #1
linus72
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couple kernel/initrd questions please?


Um
Wondering a couple things

1) How do I open/extract an initrd named

"initramfs"

I tried already and no dice...?

2) How to know where a kernel is from
lots of kernels found in distros are named vmlinuz or bzImage
what's the difference?


3) .txz file, how do I open this?
any .txz file?
I tried renaming to .tgz but didn't work...?

thanks guys
 
Old 08-02-2009, 05:51 PM   #2
joeBuffer
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The only thing I've seen on .txz files has to do with Slackware, but I've read nothing about them.
http://slackblogs.blogspot.com/2009/...txz-files.html
that's all I found that has any information.

From IBM:
Quote:
With the kernel image in memory and control given from the stage 2 boot loader, the kernel stage begins. The kernel image isn't so much an executable kernel, but a compressed kernel image. Typically this is a zImage (compressed image, less than 512KB) or a bzImage (big compressed image, greater than 512KB), that has been previously compressed with zlib.
That's from the linux boot process page.

wikipedia says (about vmlinux):
Quote:
On Linux systems, vmlinux is a statically linked executable file that contains the Linux kernel in one of the executable file formats supported by Linux, including ELF, COFF and a.out. The vmlinux file might be required for kernel debugging, generating symbol table or other operations, but must be made bootable before being used as an operating system kernel by adding a multiboot header, bootsector and setup routines.

Last edited by joeBuffer; 08-02-2009 at 05:58 PM.
 
Old 08-02-2009, 07:08 PM   #3
linus72
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OK
thanks

But, what about the "initramfs"

how do I acces extract this thing?
it's the initrd
?

and, regarding the kernels
How to know what distro a kernel originates from?

Like if a kernel is slack or debian or what?
thanks
 
Old 08-02-2009, 07:24 PM   #4
repo
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http://en.gentoo-wiki.com/wiki/Initramfs
 
Old 08-02-2009, 07:31 PM   #5
linus72
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AHhhhhhhhhh!

Your the man Repo
Thank you


Now, I found out, among others, Lighthouse Pup can use and extract .txz slack files, very good
So can Absolut Linux, which use the .txz format natively
Pretty cool?

So, off to the Laboratory....
 
  


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