I think you somehow ended up with
sh -> bash
bash -> bash
When the system is first trying to run a shell, it will go into a loop resolving bash
,
which is, according to the symlink,
the same as bash
, which is the same as bash
, which is the same as bash
, which is the same as bash
... until memory allowed for this runs out.
To fix the problem, we need to know what /bin/sh
was before, normally it points to bash
or to dash
. Which Linux distribution do you use?
There are other shells installed normally, like dash
, or zsh
, but as the system looks for sh
when starting, I see no way to make use of these without external help.
I think you will need to boot a live system from a CD, or connect the harddisk to another computer;
And from there, mount the root disk, and fix the link.
If the shell was really deleted by the "force" in ls -sf
, you need to get the shell binary from somewhere.
Could also work to link /bin/sh
to a similar shell, not the one it was pointing to - (but that seems to be what you were doing last.)
The
sudo ln -sf bash /bin/bash
could have deleted /bin/bash
- but when I try something similar, I get an error:
ln: bash and /bin/bash are the same file
Are you sure about the commands? In which directory did you run them?