Re: Issues with Recovery and Documentation

["Gerald B. Cox" <gbcox@xxxxxx>]

Your onto something...I tried renaming the file on both the rescue image and then on the target system, and it didn't help..

I did find when running the strace it returned with a bunch of no such file or directory as above and also:

chroot: failed to run command "bin/bash"open("/usr/share/locale/en_US.UTF-8/LC_MESSAGES/libc.mo",O_RDONLY)

WTF????  These files weren't on my system when it was running... why does it need them now???  This is bizarre...

On Fri, Jul 7, 2017 at 1:47 PM, stan <stanl-fedorauser@xxxxxxxxxxx> wrote:

On Fri, 7 Jul 2017 12:04:23 -0700
"Gerald B. Cox" <gbcox@xxxxxx> wrote:

> the process was able to find my installation and mount it under
> /mnt/sysimage
>
> Then it says:  If you would like to make your system the root
> environment, run the command:
>
> chroot /mnt/sysimage
>
> I then get the response:
> chroot:  failed to run command '/bin/bash':  Input/output error
>
> I checked and it is there.  What's going on?

Don't know, but some research that might help.

I found people with problems chrooting if they used a rescue disk that
was a different architecture than their system (32 bit vs 64 bit).

Someone said if they explicitly listed /bin/bash after the chroot
command, it worked, others said it made no difference.

The only solution I found for this on the web was that the file
/usr/lib/locale/locale-archive caused a floating point exception.
It isn't clear to me which system it was on.  It looks like it is the
rescue system from the result below.

https://bbs.archlinux.org/viewtopic.php?id=132271

...
Result of strace -e trace=open chroot . /bin/bash:

open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
open("/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
open("/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 3
open("/usr/lib/locale/en_US.UTF-8/LC_IDENTIFICATION",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/usr/lib/locale/en_US.utf8/LC_IDENTIFICATION",
O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
open("/usr/lib/locale/en_US/LC_IDENTIFICATION", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
open("/usr/lib/locale/en.UTF-8/LC_IDENTIFICATION", O_RDONLY|O_CLOEXEC)
= -1 ENOENT (No such file or directory)
open("/usr/lib/locale/en.utf8/LC_IDENTIFICATION", O_RDONLY|O_CLOEXEC) =
-1 ENOENT (No such file or directory)
open("/usr/lib/locale/en/LC_IDENTIFICATION", O_RDONLY|O_CLOEXEC) = -1
ENOENT (No such file or directory) open("/etc/ld.so.cache",
O_RDONLY|O_CLOEXEC) = 3 open("/lib/libreadline.so.6",
O_RDONLY|O_CLOEXEC) = 3 open("/lib/libncursesw.so.5",
O_RDONLY|O_CLOEXEC) = 3 open("/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 open("/dev/tty",
O_RDWR|O_NONBLOCK)     = 3 open("/usr/lib/locale/locale-archive",
O_RDONLY|O_CLOEXEC) = 3 --- {si_signo=SIGFPE, si_code=FPE_INTDIV,
si_addr=0x7f6d662c1712} (Floating point exception) --- +++ killed by
SIGFPE +++ Floating point exception

deleting ./usr/lib/locale/locale-archive allows me to chroot.
...
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