Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.debian.kernel > #52546
| From | Ian Campbell <ijc@debian.org> |
|---|---|
| Newsgroups | linux.debian.kernel |
| Subject | Re: Booting uncompressed kernel images |
| Date | 2016-02-02 12:30 +0100 |
| Message-ID | <qXHjI-215-1@gated-at.bofh.it> (permalink) |
| References | <qXHjI-215-3@gated-at.bofh.it> <qXi1Z-8lp-29@gated-at.bofh.it> <qXk3L-1dK-9@gated-at.bofh.it> <qXygq-3lg-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, 2016-02-01 at 23:31 -0200, Tiago Ilieve wrote:
> > PS I have also found binwalk [2] useful when examining contents of
> > compressed kernel
> > apt-get install binwalk
>
> Thanks for the tip - although I got a little bit surprised with so
> many dependencies in what should be a simple command-line utility.
>
> Here's what I got from "binwalk /boot/vmlinuz-3.16.0-4-amd64":
>
> DECIMAL HEXADECIMAL DESCRIPTION
> -----------------------------------------------------------------------
> ---------
> 0 0x0 Microsoft portable executable
> 18356 0x47B4 xz compressed data
> 3108600 0x2F6EF8 xz compressed data
>
> Not sure about what bytes "0-18355" means. Maybe a false-positive?
>
> If I run it with "-e", it get two files ("47B4.tar" and "2F6EF8.tar")
> that can't be decompressed with "tar"/"unxz".
What does file(1) say about them? For me I see:
_vmlinuz-3.16.0-4-amd64.extracted/2F6EF8.xz: XZ compressed data
_vmlinuz-3.16.0-4-amd64.extracted/47B4: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, BuildID[sha1]=2883400c6927fe339cdd2c321d3d154c472ef418, stripped
_vmlinuz-3.16.0-4-amd64.extracted/47B4.xz: XZ compressed data
Do any of them match what you get out of extract-linux?
_vmlinuz-3.16.0-4-amd64.extracted/47B4 looks to me to be an ELF file which
I would expect to be bootable as a Xen PV guest, it has the required ELF
notes etc.
Did you see my other replies on debian-kernel yesterday? There are some
questions there which it would be useful to know the answers to.
Ian.
Back to linux.debian.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Booting uncompressed kernel images Tiago Ilieve <tiago.myhro@gmail.com> - 2016-02-01 09:30 +0100
Re: Booting uncompressed kernel images Ian Campbell <ijc@debian.org> - 2016-02-01 11:10 +0100
Re: Booting uncompressed kernel images Ian Campbell <ijc@debian.org> - 2016-02-01 11:40 +0100
Re: Booting uncompressed kernel images Jose R R <Jose.r.r@metztli-it.com> - 2016-02-01 11:40 +0100
Re: Booting uncompressed kernel images Tiago Ilieve <tiago.myhro@gmail.com> - 2016-02-02 02:50 +0100
Re: Booting uncompressed kernel images Ian Campbell <ijc@debian.org> - 2016-02-02 12:30 +0100
Re: Booting uncompressed kernel images Tiago Ilieve <tiago.myhro@gmail.com> - 2016-02-02 18:40 +0100
Re: Booting uncompressed kernel images Ian Campbell <ijc@debian.org> - 2016-02-02 18:40 +0100
Re: Booting uncompressed kernel images Tiago Ilieve <tiago.myhro@gmail.com> - 2016-02-04 19:00 +0100
Re: Booting uncompressed kernel images Ian Campbell <ijc@debian.org> - 2016-02-05 12:10 +0100
Re: Booting uncompressed kernel images Ben Hutchings <ben@decadent.org.uk> - 2016-02-05 16:10 +0100
Re: Booting uncompressed kernel images Andreas Ziegler <ml2013@andreas-ziegler.de> - 2016-02-05 16:10 +0100
csiph-web