:: Re: [DNG] Won't boot after dist-upg…
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Autor: Emiliano Marini
Data:  
Para: KatolaZ
CC: dng
Assunto: Re: [DNG] Won't boot after dist-upgrade
Hi KatolaZ,

It's gzip compressed:

emi@devuan:~$ file /boot/initrd.img-4.7.0-0.bpo.1-686
/boot/initrd.img-4.7.0-0.bpo.1-686: gzip compressed data, last modified:
Fri Dec 16 09:32:51 2016, from Unix

It unpacks ok:

emi@devuan:~$ mkdir -p /tmp/initrd
emi@devuan:~$ cd /tmp/initrd
emi@devuan:/tmp/initrd$ zcat /boot/initrd.img-4.7* | cpio -idmv 2>/dev/null
emi@devuan:/tmp/initrd$ file init
init: POSIX shell script, ASCII text executable
emi@devuan:/tmp/initrd$ file sbin/init
sbin/init: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV),
dynamically linked, interpreter /lib/ld-linux.so.2, for GNU/Linux 2.6.32,
BuildID[sha1]=6948872c0e5c6e1933b25bc2ae3eb8b4f9bdac19, stripped
emi@devuan:/tmp/initrd$ head init
#!/bin/sh

echo "Loading, please wait..."

# Default PATH differs between shells, and is not automatically exported
# by klibc dash. Make it consistent.
export PATH=/sbin:/usr/sbin:/bin:/usr/bin

[ -d /dev ] || mkdir -m 0755 /dev
[ -d /root ] || mkdir -m 0700 /root

That's the "Loading, please wait..." I never see.

I tried the 4.6 kernel with the 4.7 initrd and it almost boot (at the end
init cannot access the root fs device). But the 4.6 kernel extracts the 4.7
initrd and loads de init process. This leads me to think it's a kernel
issue.

Tried booting the 4.7 to /bin/sh. Same results. It seems it cannot extract
the initrd?

Cheers,
Emiliano.


On Fri, Dec 16, 2016 at 9:07 AM, KatolaZ <katolaz@???> wrote:

> On Fri, Dec 16, 2016 at 08:21:11AM -0300, Emiliano Marini wrote:
> > I've got rid of that error installing the kernel headers. But nothing has
> > changed.
> >
> > apt-get install linux-headers-4.7.0-0.bpo.1-all
> > apt-get install --reinstall linux-image-4.7.0-0.bpo.1-686
> >
>
> This definitely looks to me as something (i.e., either /sbin/init or a
> kernel module) being missing/misplaced in the initrd. Is the initrd
> actually uncompressed successfully? If it is (and now I am just
> wondering), is it possible that the "init" you have in there is
> corrupted or missing, or instead waiting for some magic to happen?
> Have you tried to pass "init=/bin/sh" to the kernel? What happens?
>
> Which is the format of the initrd file that is created for you by
> initramfs-tools? Maybe (but this would be quite weird) that
> initramfs-tools has used xz compression, and for
> who-knows-which-reason the kernel does not have xz builtin, and the
> kernel fails to uncompress the initrd file?
>
> My2Cents
>
> KatolaZ
>
> --
> [ ~.,_  Enzo Nicosia aka KatolaZ - GLUGCT -- Freaknet Medialab  ]
> [     "+.  katolaz [at] freaknet.org --- katolaz [at] yahoo.it  ]
> [       @)   http://kalos.mine.nu ---  Devuan GNU + Linux User  ]
> [     @@)  http://maths.qmul.ac.uk/~vnicosia --  GPG: 0B5F062F  ]
> [ (@@@)  Twitter: @KatolaZ - skype: katolaz -- github: KatolaZ  ]
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