ようやく、振り出しに戻る

「最初」の一歩は、標準ファームの HDD のコピーなのだが、
標準ファームの HDD を温存する必要がなくなったので、パスして
SSH でログインできるようにするところから。

sshd の起動確認

yasunari@qube:~$ ssh -l admin qvl
Password:
 Connection to qvl closed by remote host.
Connection to qvl closed.
yasunari@qube:~$

しかし、何のために動かしてあるの？？

ssh でログイン可能にする

HDD を LS-VL に接続

Jun 16 14:59:53 vl kernel: usb 1-1: new high speed USB device using ehci_marvell and address 2
Jun 16 14:59:53 vl kernel: usb 1-1: configuration #1 chosen from 1 choice
Jun 16 14:59:53 vl kernel: scsi2 : SCSI emulation for USB Mass Storage devices
Jun 16 14:59:58 vl kernel: scsi 2:0:0:0: Direct-Access     ViPowER  VP-89118(SD1)    2.10 PQ: 0 ANSI: 4
Jun 16 14:59:58 vl kernel: sd 2:0:0:0: Attached scsi generic sg1 type 0
Jun 16 14:59:58 vl kernel: sd 2:0:0:0: [sdb] 488283264 512-byte logical blocks: (250 GB/232 GiB)
Jun 16 14:59:58 vl kernel: sd 2:0:0:0: [sdb] Write Protect is off
Jun 16 14:59:58 vl kernel: sdb: sdb1 sdb2 sdb3 sdb4 sdb5 sdb6
Jun 16 14:59:58 vl kernel: sd 2:0:0:0: [sdb] Attached SCSI disk

マウント

root@vl:~# mdadm --assemble /dev/md1
root@vl:~# mkdir /tmp/root
root@vl:~# mount /dev/md1 /tmp/root
mount: special device /dev/md1 does not exist
root@vl:~#

md をスキャンする。

root@vl:~# mdadm --assemble -scan
mdadm: /dev/md/LS-QVL-EMF42:21 has been started with 1 drive (out of 2).
mdadm: /dev/md/LS-QVL-EMF42:10 has been started with 1 drive (out of 4).
mdadm: /dev/md/LS-QVL-EMF42:1 has been started with 1 drive (out of 4).
mdadm: /dev/md/0_0 has been started with 1 drive (out of 4).
root@vl:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid6] [raid5] [raid4]
md124 : active raid1 sdb1[0]
      1000384 blocks [4/1] [U___]

md125 : active raid1 sdb2[0]
      4999156 blocks super 1.2 [4/1] [U___]

md126 : active raid1 sdb5[0]
      1000436 blocks super 1.2 [4/1] [U___]

md127 : active raid1 sdb6[0]
      229327736 blocks super 1.2 [2/1] [U_]

unused devices: 
root@vl:~# ls -l /dev/md*
brw-rw---- 1 root disk 9, 124 2012-06-16 15:02 /dev/md124
brw-rw---- 1 root disk 9, 125 2012-06-16 15:02 /dev/md125
brw-rw---- 1 root disk 9, 126 2012-06-16 15:02 /dev/md126
brw-rw---- 1 root disk 9, 127 2012-06-16 15:02 /dev/md127

/dev/md:
合計 0
lrwxrwxrwx 1 root root 8 2012-06-16 15:02 0_0 -> ../md124
lrwxrwxrwx 1 root root 8 2012-06-16 15:02 LS-QVL-EMF42:1 -> ../md125
lrwxrwxrwx 1 root root 8 2012-06-16 15:02 LS-QVL-EMF42:10 -> ../md126
lrwxrwxrwx 1 root root 8 2012-06-16 15:02 LS-QVL-EMF42:21 -> ../md127
root@vl:~#

今度こそマウントする

root@vl:~# mount /dev/md125 /tmp/root
root@vl:~# ls /tmp/root
bin   dev  home    lib         mnt   root  sys  usr  www
boot  etc  initrd  lost+found  proc  sbin  tmp  var
root@vl:~#

root のパスワードをつぶす

root@vl:~# cd /tmp/root/etc/
root@vl:/tmp/root/etc# vi shadow
	:
	:
root@vl:/tmp/root/etc# grep root !$
grep root shadow
root::11009:0:99999:7:::
root@vl:/tmp/root/etc#

sshd_config の修正

root@vl:/tmp/root/etc# mv sshd_config{,.orig}
root@vl:/tmp/root/etc# cp sshd_config.orig sshd_config
root@vl:/tmp/root/etc# vi sshd_config
	:
	:
root@vl:/tmp/root/etc# !cp:s/cp/diff -u/
diff -u sshd_config.orig sshd_config
--- sshd_config.orig    2011-01-06 11:07:39.000000000 +0900
+++ sshd_config 2012-06-16 15:08:11.000000000 +0900
@@ -20,7 +20,7 @@
 # HostKeys for protocol version 2
 #HostKey /etc/ssh_host_rsa_key
 #HostKey /etc/ssh_host_dsa_key
-HostKey /etc/apache/server.key
+#HostKey /etc/apache/server.key

 # Lifetime and size of ephemeral version 1 server key
 #KeyRegenerationInterval 1h
@@ -34,8 +34,8 @@
 # Authentication:

 #LoginGraceTime 2m
-#PermitRootLogin yes
-PermitRootLogin no
+PermitRootLogin yes
+#PermitRootLogin no
 #StrictModes yes

 #RSAAuthentication yes
@@ -55,6 +55,7 @@
 # To disable tunneled clear text passwords, change to no here!
 #PasswordAuthentication yes
 #PermitEmptyPasswords no
+PermitEmptyPasswords yes

 # Change to no to disable s/key passwords
 #ChallengeResponseAuthentication yes
@@ -71,7 +72,8 @@
 # Set this to 'yes' to enable PAM authentication (via challenge-response)
 # and session processing. Depending on your PAM configuration, this may
 # bypass the setting of 'PasswordAuthentication'
-UsePAM yes
+#UsePAM yes
+UsePAM no

 #AllowTcpForwarding yes
 #GatewayPorts no
root@vl:/tmp/root/etc#

アンマウント

root@vl:/tmp/root/etc# cd /
root@vl:/# umount /tmp/root/
root@vl:/#

HDD を LS-QVL に戻す

LS-QVL を起動

LS-QVL に ssh

yasunari@qube:~$ ssh -l root qvl
The authenticity of host 'qvl (192.168.2.56)' can't be established.
RSA key fingerprint is 1b:5d:c8:9d:01:de:f0:eb:22:65:5c:55:13:90:31:52.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'qvl,192.168.2.56' (RSA) to the list of known hosts.
root@LS-QVLF42:~#

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