On 04/21/2015 04:51 PM, Cameron Simpson wrote:
On 21Apr2015 15:34, jd1008 <jd1008@xxxxxxxxx> wrote:
As root, I ran
chroot --userspec=user2:user2 /home/user2
chroot: failed to run command ‘/bin/bash’: Permission denied
The dir /home/user2 has in it
all the *bin and *lib (links) and usr/*bin and usr/*lib files and
subdirs.
So, what is chroot good for???
Hmm, on what platform? You posted to fedora and freebsd lists.
I would guess that there is some permissions problem with the copies
of /bin/bash (and whatever libraries it links) such that user2 cannot
run it, as suggested by the "Permission denied" message.
On Linux, strace can tell you about this.
BTW, loopback mounts are probably a better way to get specific stuff
inside a chroot before you lock the door. No copies, and no
permissions to preserve.
Cheers,
Cameron Simpson <cs@xxxxxxxxxx>
Hi Cameron,
Now that chroot works, I am having a problem
with running gui apps.
For example running firefox, I get
(process:10281): GLib-CRITICAL **: g_slice_set_config: assertion
'sys_page_size == 0' failed
(firefox:10281): GnomeUI-WARNING **: While connecting to session manager:
None of the authentication protocols specified are supported.
(firefox:10281): Pango-WARNING **: failed to choose a font, expect ugly
output. engine-type='PangoRenderFc', script='common'
bash-4.3$
(crashreporter:10321): Pango-WARNING **: failed to choose a font, expect
ugly output. engine-type='PangoRenderFc', script='common'
(crashreporter:10321): Pango-WARNING **: failed to choose a font, expect
ugly output. engine-type='PangoRenderFc', script='latin'
What am I missing???
If I had thought about it, I wouldn't have done the experiment.
The literature was full of examples that said you can't do this.
--Spencer Silver on the work that led to the unique adhesives
for 3-M "Post-It" Notepads.
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