I can't execute anything on ubuntu server

Question

root@dd:/tmp/chroot# test -f
root@dd:/tmp/chroot# test -f lib/libncurses.so.5
root@dd:/tmp/chroot# test -f lib/libncurses.so.5 && echo 's'
s
root@dd:/tmp/chroot# test -f lib/libncurses.so.5 && echo 's' || echo 'f'
s
root@dd:/tmp/chroot# test -f lib/libdl.so.2 && echo 's' || echo 'f'
s
root@dd:/tmp/chroot# test -f lib/libc.so.6 && echo 's' || echo 'f'
s
root@dd:/tmp/chroot# test -f lib64/ld-linux-x86-64.so.2 && echo 's' || echo 'f'
f
root@dd:/tmp/chroot# cd lib
root@dd:/tmp/chroot/lib# find . -name 'ld-linux-x86-64.so.2'
./ld-linux-x86-64.so.2
root@dd:/tmp/chroot/lib# cd ..
root@dd:/tmp/chroot# cd lib64
bash: cd: lib64: no such file or directory
root@dd:/tmp/chroot# mkdir lib64
root@dd:/tmp/chroot# cd lib64
root@dd:/tmp/chroot/lib64# cp -a /lib64 .
root@dd:/tmp/chroot/lib64# ls
lib64
root@dd:/tmp/chroot/lib64# cd lib64
root@dd:/tmp/chroot/lib64/lib64# ls
cpp                                   libgcc_s.so.1                libply-splash-core.so.2
dbus-1.0                              libgcrypt.so.11              libply-splash-core.so.2.0.0
firmware                              libgcrypt.so.11.5.2          libply-splash-graphics.so.2
hdparm                                libglib-2.0.so.0             libply-splash-graphics.so.2.0.0
init                                  libglib-2.0.so.0.2400.1      libply.so.2
klibc-usBAintlt99f0TITo98H_trqH2c.so  libgpg-error.so.0            libply.so.2.0.0
ld-2.11.1.so                          libgpg-error.so.0.4.0        libpng12.so.0
ld-linux-x86-64.so.2                  libhistory.so.5              libpng12.so.0.42.0
ld-linux.so.2                         libhistory.so.5.2            libpopt.so.0
libBrokenLocale-2.11.1.so             libhistory.so.6              libpopt.so.0.0.0
libBrokenLocale.so.1                  libhistory.so.6.1            libproc-3.2.8.so
libSegFault.so                        libiptc.so.0                 libpthread-2.11.1.so
libacl.so.1                           libiptc.so.0.0.0             libpthread.so.0
libacl.so.1.1.0                       libiw.so.30                  libreadline.so.5
libanl-2.11.1.so                      libkeyutils-1.2.so           libreadline.so.5.2
libanl.so.1                           libkeyutils.so.1             libreadline.so.6
libatasmart.so.4                      libm-2.11.1.so               libreadline.so.6.1
libatasmart.so.4.0.3                  libm.so.6                    libresolv-2.11.1.so
libatm.so.1                           libmemusage.so               libresolv.so.2
libatm.so.1.0.0                       libncurses.so.5              librt-2.11.1.so
libattr.so.1                          libncurses.so.5.7            librt.so.1
libattr.so.1.1.0                      libncursesw.so.5             libselinux.so.1
libblkid.so.1                         libncursesw.so.5.7           libsepol.so.1
libblkid.so.1.1.0                     libnih-dbus.so.1             libslang.so.2
libbsd.so.0                           libnih-dbus.so.1.0.0         libslang.so.2.2.2
libbsd.so.0.2.0                       libnih.so.1                  libss.so.2
libbz2.so.1                           libnih.so.1.0.0              libss.so.2.0
libbz2.so.1.0                         libnsl-2.11.1.so             libssl.so.0.9.8
libbz2.so.1.0.4                       libnsl.so.1                  libsysfs.so.2
libc-2.11.1.so                        libnss_compat-2.11.1.so      libsysfs.so.2.0.1
libc.so.6                             libnss_compat.so.2           libthread_db-1.0.so
libcap.so.2                           libnss_dns-2.11.1.so         libthread_db.so.1
libcap.so.2.17                        libnss_dns.so.2              libtic.so.5
libcidn-2.11.1.so                     libnss_files-2.11.1.so       libtic.so.5.7
libcidn.so.1                          libnss_files.so.2            libticw.so.5
libcom_err.so.2                       libnss_hesiod-2.11.1.so      libticw.so.5.7
libcom_err.so.2.1                     libnss_hesiod.so.2           libudev.so.0
libcrypt-2.11.1.so                    libnss_mdns.so.2             libudev.so.0.6.1
libcrypt.so.1                         libnss_mdns4.so.2            libulockmgr.so.1
libcrypto.so.0.9.8                    libnss_mdns4_minimal.so.2    libulockmgr.so.1.0.1
libdbus-1.so                          libnss_mdns6.so.2            libusb-0.1.so.4
libdbus-1.so.3                        libnss_mdns6_minimal.so.2    libusb-0.1.so.4.4.4
libdbus-1.so.3.4.0                    libnss_mdns_minimal.so.2     libusb-1.0.so.0
libdevmapper.so.1.02.1                libnss_nis-2.11.1.so         libusb-1.0.so.0.0.0
libdl-2.11.1.so                       libnss_nis.so.2              libutil-2.11.1.so
libdl.so.2                            libnss_nisplus-2.11.1.so     libutil.so.1
libdrm.so.2                           libnss_nisplus.so.2          libuuid.so.1
libdrm.so.2.4.0                       libntfs-3g.so.75             libuuid.so.1.3.0
libdrm_intel.so.1                     libntfs-3g.so.75.0.0         libwrap.so.0
libdrm_intel.so.1.0.0                 libpam.so.0                  libwrap.so.0.7.6
libdrm_nouveau.so.1                   libpam.so.0.82.2             libxtables.so.2
libdrm_nouveau.so.1.0.0               libpam_misc.so.0             libxtables.so.2.0.0
libdrm_radeon.so.1                    libpam_misc.so.0.82.0        libz.so.1
libdrm_radeon.so.1.0.0                libpamc.so.0                 libz.so.1.2.3.3
libe2p.so.2                           libpamc.so.0.82.1            lsb
libe2p.so.2.3                         libparted.so.0               modules
libexpat.so.1                         libparted.so.0.0.1           plymouth
libexpat.so.1.5.2                     libpcprofile.so              security
libexpatw.so.1                        libpcre.so.3                 terminfo
libexpatw.so.1.5.2                    libpcre.so.3.12.1            udev
libext2fs.so.2                        libpcsclite.so.1             ufw
libext2fs.so.2.4                      libpcsclite.so.1.0.0         xtables
libfuse.so.2                          libply-boot-client.so.2
libfuse.so.2.8.1                      libply-boot-client.so.2.0.0
root@dd:/tmp/chroot/lib64/lib64# mv * ../
root@dd:/tmp/chroot/lib64/lib64# cd ..
root@dd:/tmp/chroot/lib64# ls
bash: /bin/ls: no such file or directory
root@dd:/tmp/chroot/lib64# ls
bash: /bin/ls: no such file or directory
root@dd:/tmp/chroot/lib64# cd ..
root@dd:/tmp/chroot# ls
bash: /bin/ls: no such file or directory
root@dd:/tmp/chroot#

First of all, sorry for bad english... As seen above, even though the server did not perform a delete command has failed. Why is this happening? How do I import my local files? (SFTP, FTP is not working now T_T)

*edit* scratch that, I see it happens outside the chroot. – rackandboneman May 17 '12 at 15:47 — rackandboneman, May 17 '12 at 15:47

score 4 · Accepted Answer · answered May 17 '12 at 15:51

4

Try

export LD_LIBRARY_PATH=/tmp/chroot/lib
/tmp/chroot/lib/ld-linux-x86-64.so.2 /bin/ls

answered May 17 '12 at 15:51

rackandboneman

2,577
11
8

thanks but.. when I type code, It prints "bash: export: `/bin/ls': not valid name"... – user1362462 May 17 '12 at 15:58
but without export... it works!!! – user1362462 May 17 '12 at 15:59
these are two distinct commands. sorry for the edit storm. – rackandboneman May 17 '12 at 15:59
it will work as a single line without export, but then you will have to prepend every time. IF both systems (in and out of chroot) are amd64, you can now probably make a copy command work to replace the linker in the outer system. – rackandboneman May 17 '12 at 16:01
How can I recover this system? I want to use other commands, but it failed "/bin/clear: error while loading shared libraries: /bin/clear: cannot open shared object file: No such file or directory" – user1362462 May 17 '12 at 16:01
The first thing you need is to fix the /lib directory on the outer system. as i said, if / and /tmp/chroot point to system of the same architecture, you can copy most things you need from /tmp/chroot/lib. – rackandboneman May 17 '12 at 16:05
Still: now the next thing is to find out WHY parts of /lib went missing in action. This looks like either filesystem corruption (fsck -vf as soon as you can!) or some (maybe successful, maybe not) attempt at manipulation. – rackandboneman May 17 '12 at 16:15

score 0 · Answer 2 · edited Apr 13 '17 at 12:14

0

First place I would start is by checking if that /bin directory is intact. You can do this by executing the following:

cd /bin
echo *

Could also have been the doing of someone who has comprimised your system and is looking to cover their tracks as well. First thing you likely want to do is load up a live CD and check the md5's. /bin/ls not found even though it exists.

edited Apr 13 '17 at 12:14

Community

1

answered May 17 '12 at 16:01

Rob

156
6

Thanks. bin folder exists and files in bin folder exists too. – user1362462 May 17 '12 at 16:02
if you enter echo $PATH is /bin listed? – Rob May 17 '12 at 16:04
# echo $PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games – user1362462 May 17 '12 at 16:04
Yes, and I think everything works fine now. Many thanks again T_T – user1362462 May 17 '12 at 16:14

I can't execute anything on ubuntu server

2 Answers2