[SOLVED] Problems with logging in after finishing the 7.2 LFS book

giuliom_95 · 02-17-2013, 10:51 AM

Hi all,
I've just finished to compile my own LFS. I've rebooted and it's all ok until I try to log in: every time after I insert the root credentials and it tolds me the last login date and that there are no new emails, it promts:

Code:

cannot run command `/bin/bash': No such file or directory

and asks me again to log in.
What can I do? the LFS version I've read is the 7.2

spiky0011 · 02-17-2013, 11:15 AM

Hi can you post fstab file

giuliom_95 · 02-17-2013, 11:25 AM

Code:

# Begin /etc/fstab

# file system  mount-point  type     options             dump  fsck
#                                                              order

/dev/sda6      /            ext3     defaults            1     1
proc           /proc        proc     nosuid,noexec,nodev 0     0
sysfs          /sys         sysfs    nosuid,noexec,nodev 0     0
devpts         /dev/pts     devpts   gid=5,mode=620      0     0
tmpfs          /run         tmpfs    defaults            0     0
devtmpfs       /dev         devtmpfs mode=0755,nosuid    0     0

# End /etc/fstab

spiky0011 · 02-17-2013, 11:29 AM

Hi

I have seen this problem I think I had it but cant find the thread, I,ll keep looking by the way fstab ok

spiky0011 · 02-17-2013, 11:44 AM

Can you post /etc/passwd file

druuna · 02-17-2013, 11:46 AM

Quote:

Originally Posted by giuliom_95

Hi all,
I've just finished to compile my own LFS. I've rebooted and it's all ok until I try to log in: every time after I insert the root credentials and it tolds me the last login date and that there are no new emails, it promts:

Code:

cannot run command `/bin/bash': No such file or directory

and asks me again to log in.
What can I do? the LFS version I've read is the 7.2

The shell to start when logging in is defined in /etc/passwd and seems to point at /bin/bash.
- Do you have a correct root entry in /etc/passwd?
- Does /bin/bash exist?

giuliom_95 · 02-17-2013, 11:47 AM

Quote:

The shell to start when logging in is defined in /etc/passwd and seems to point at /bin/bash.
- Do you have a correct root entry in /etc/passwd?
- Does /bin/bash exist?

/bin/bash file exists and I think that the /etc/passwd file it's ok:

Quote:

root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/dev/null:/bin/false
nobody:x:99:99:Unprivileged User:/dev/null:/bin/false

@spiky: Thanks for replies spiky, but I think that the problem is in the shadow package because also if I try to run 'su' by an "chrooted" system I get the same error! So I've tried to re-compile and re-install shadow but I haven't not got results... Other suggestions?

druuna · 02-17-2013, 11:49 AM

Quote:

Originally Posted by giuliom_95

Thanks for replies spiky, but I think that the problem is in the shadow package because also if I try to run 'su' by an "chrooted" system I get the same error!

No, the problem is that bash cannot be found and/or executed.

spiky0011 · 02-17-2013, 11:49 AM

post /etc/passwd just to be sure

giuliom_95 · 02-17-2013, 11:53 AM

I've posted /etc/passwd up of this

druuna · 02-17-2013, 11:57 AM

Is bash executable?

Code:

cd /bin
./bash --version

# and
file bash

giuliom_95 · 02-17-2013, 12:18 PM

Quote:

Originally Posted by druuna

Is bash executable?

Code:

cd /bin
./bash --version

# and
file bash

Yes the /bin/bash file is executable (-rwxr-xr-x) and the output of suggested commands are:

Code:

root:/bin# ./bash --version
GNU bash, version 4.2.36(1)-release (i686-pc-linux-gnu)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Code:

root:/bin# file bash
bash: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.25, not stripped

spiky0011 · 02-17-2013, 12:22 PM

Hi

Not sure if I,m right or it will add info

Code:

echo $SHELL

Dont know if you can run that

giuliom_95 · 02-17-2013, 12:31 PM

Quote:

Originally Posted by spiky0011

Hi

Not sure if I,m right or it will add info

Code:

echo $SHELL

Dont know if you can run that

I can run this only by a chrooted system and I think that it's the same of the host OS but I'll however post the output:

Code:

root:/# echo $SHELL
/bin/bash

druuna · 02-17-2013, 12:48 PM

Just to be sure: You cannot log into LFS, so am I assuming correctly that all the commands shown above are done on your host and from within the chrooted environment?

I'm asking because this might look strange (not 100% sure):

Quote:

root:/bin# file bash
bash: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.25, not stripped

LFS 7.2 uses kernel/header version 3.5.2 and I would expect this to show and not 2.6.25. But like I said: Not 100% sure about that.