Upgrade from v5.2 to v5.3 Remount the disk read/write (remount w). Make sure to rename or backup files that you have made changes to (rc.local or similar) and is included in this upgrade. Copy the patch to /tmp and in the /tmp directory do: tar Uzxpf /tmp/patch.52-53.tar.gz Adjust config files, restart daemons and remount the disk read-only (remount r). Make sure to set the password and check the /etc/hosts.allow file. - - - - - - - - - - - - - - - - - - - - - - - - - - - Added or changed files (included in the tar file): -rw-r--r-- 1 root root 324 Jun 27 13:54 ./etc/group -rw-r--r-- 1 root root 409 Jun 27 13:55 ./etc/passwd -rw-r--r-- 1 root root 409 Jun 25 12:02 ./etc/passwd.OLD -r-x------ 1 root root 2510 Jun 27 11:54 ./etc/rc.d/rc.S* -r-------- 1 root root 390 Jun 25 12:02 ./etc/shadow -r-------- 1 root root 390 Jun 25 12:03 ./etc/shadow- -r--r--r-- 1 root root 88039 Jun 27 09:25 ./etc/ssh/moduli -r--r--r-- 1 root root 1173 Jun 27 09:24 ./etc/ssh/ssh_config -r-------- 1 root root 2384 Jun 27 09:39 ./etc/ssh/sshd_config -rw-r--r-- 1 root root 5 Jun 12 14:44 ./etc/.version -r-x------ 1 root root 745 Jun 19 15:08 ./sbin/backup* ---x------ 1 root root 41656 Jun 20 11:33 ./sbin/ethtool* ---x------ 1 root root 35144 Jun 20 11:57 ./sbin/lspci* ---x------ 1 root root 22816 Jun 20 11:57 ./sbin/setpci* ---x------ 1 root root 26792 Jun 27 10:24 ./usr/bin/scp* ---x------ 1 root root 87076 Jun 27 10:24 ./usr/bin/sftp* ---x------ 1 root root 750024 Jun 27 10:24 ./usr/bin/ssh* ---x------ 1 root root 576008 Jun 27 10:24 ./usr/bin/ssh-keygen* lrwxrwxrwx 1 root root 4 Jun 5 10:32 ./usr/bin/[ -> test* -rw-r--r-- 1 root root 190320 Jun 20 12:00 ./usr/lib/pci.ids ---x------ 1 root root 64076 Jun 27 10:24 ./usr/sbin/sftp-server* ---x------ 1 root root 786424 Jun 27 10:24 ./usr/sbin/sshd* Stuff that has been removed or must be changed by hand: Edit /etc/motd to change the version number. Remove /etc/ssh/primes