[caiman-discuss] Sorting out files in bootcd_skel directory

[Moinak Ghosh]

Karen W. Tung wrote:
> To create a Live CD/DVD, the Live Media project introduced a set of files in the a directory called "bootcd_skel".  The files in the directory replaces some files that are normally included as part of Solaris, and introduces some new files that are specific for making Live CD/DVD work.
> Instead of deliverying this whole set of files as a bundle, we are working on sorting out each file and see whether there is a better way to deliver them, eg: via a special package for Live Media...etc..
>
> As a first step, I went through each of these files and categorized them into the following 4 categories.
>
> - Microroot Only - LiveCD specific files
> - Proto area - LiveCD modifications of existing files
> - Changes that I think can be done using scripts instead of replacing the whole file.
> - Changes that I think is not necessary, or I am confused about what they are.
>
> If you see any problems with the way I sort them out, or if you have any input on some of
> the things I don't understand, please help with making the list better.
>
> -------------------------------------------------------------------------
> Microroot Only - LiveCD specific files
> --------------------------------
> f 0444 root:root .livecd
>         - contains volume name
> f 0644 root:other reconfigure
>         - ????
>   

   Indicates a re-configuration reboot. Every boot of the LiveCD necessarily
   requires re-configuration of devices.

> f 0777 root:root noautoshutdown
>         - ????
>   

   Disable power management. Though this can be achieved by properly
   setting up the /etc/power.conf

> f 0755 root:sys kernel/fs/hsfs
>         - hsfs driver (will this be included in NV by the time Indiana ships???)
>   

   Should be in. Testing is complete and I am waiting for the final 
code-review
   to complete after which I can submit the RTI.

[...]
> f 0644 root:root etc/rtc_config
>         - Specifies the timezone to be GMT.  This file doesn't seem to be
>           included in any existing package.  Is it normally created during
>           install time?
>   

   Yes.

> f 0644 root:root etc/inet/routing.conf
>         - Sets up routing.  Not shipped by any package.
>           Not sure whether content should be generated
>           somehow instead of hardcoding here.
>   

   This file is included to avoid routed from running. I think this can now
   be better administered via SMF and the route services can be disabled
   in the generic_live.xml profile, so this file should be eventually be 
dropped

> f 0644 root:other etc/.UNCONFIGURED
>         - To indicate that this system is not configured?????
>   

   This file can be omitted. This is used by the sysid tools to figure 
out whether
   they need to run during a re-configuration reboot.

> For proto area 
> ----------------
> f 0644 root:root boot/solaris/bootenv.rc
>         - ???? - replaces the "standard" one
>   

   Critical for the LiveCD to work.

> f 0644 root:sys boot/grub/menu.lst
>         - grub menu - replaces the "standard" one
> f 0644 root:root boot/grub/sx-boot.xpm.gz
>         - grub menu background graphics - replaces the "standard" one
>
> The following changes are needed, can they be done with a script instead of
> replacing the whole file? (All these files only need to be in microroot)
> ----------------------------------------------------------------------
>
> f 0644 root:sys etc/security/prof_attr
> f 0644 root:sys etc/security/exec_attr
>         - Need our customized one because we want to add the
>           "Inetmenu" profile?  Can we add the profile in via a command?
>   

   Yes.

> f 0644 root:staff etc/inet/hosts
>         - Why need this one?  Because we need to give localhost a "hostname"?
>           Is it better just leave it to have no name?
>   

   Need this to avoid ugly warnings from syslog and sendmail.

> f 0644 root:sys etc/passwd
>         - Makes "root" have home directory of /root, and shell of "bash".
>           Is there a command to do this?  If not, can we just modify
>           the passwd file with a script?
>   

   Yes, should be a script.

> f 0400 root:sys etc/shadow
>         - Gives an hardcoded password to the "root" user. 
>
> f 0644 root:other etc/coreadm.conf
>         - Specifies where core files should go to.  This file is not
>           shipped by any package.
>   

   This is generated via coreadm. Coreadm can be run by chrooting to the
   proto area to set this up, so can be in a script.

>  
> f 0644 root:root etc/nodename
>         - Hard code name of the host.  Can be created dynamically, based on
>           user input.  This file is not shipped by any package??
>   

   Yes should be based on user configuration.

> [...]
> f 0644 root:other etc/dumpadm.conf
>         - Set crash dump enable to be "DUMPADM_ENABLE=no".  This file is not
>           installed by default.  It is used by the "svc-dumpadm" script.
>           Change script to not read dumpadm.conf for LiveCD?
>   

   This can be replaced by a script that executes  dumpadm -n -r <proto dir>

> f 0644 root:sys etc/minor_perm
>         - I don't know what's special in here for LiveCD?  If we need to
>           add something, probably can make mod with script.
>   

   This file should be omitted as it is generated automatically in the 
proto.

> f 0644 root:root etc/resolv.conf
>         - File not delivered by any package.  Create it using script.
>
> Not necessary, I think
> ----------------------------
> f 0555 root:bin lib/opengl/ogl_select/nvidia_vendor_select
>         - ????
>   

   This is part of an Xorg package but not needed in miniroot as the Nvidia
   driver can't be included in Slim Install.

> f 0644 root:sys etc/profile
> f 0644 root:root etc/default_env.sh
>         - Why need a customized etc/profile script?  Just so that it can read
>           in the customized "default_env.sh".  Is it really necessary to
>           have the "default_env.sh"?
>   

   The default_env is a hack and should be avoided. A pre-configured
   /etc/profile is good since the default PATH setup in Solaris is too 
limited.

> f 0600 root:root etc/ssh/ssh_host_dsa_key
> f 0644 root:root etc/ssh/ssh_host_dsa_key.pub
> f 0600 root:root etc/ssh/ssh_host_rsa_key
> f 0644 root:root etc/ssh/ssh_host_rsa_key.pub
>         - Public and private keys for DSA and RSA shouldn't be hard coded.
>   

   Yep. These should be generated during every boot. These files can be
   omitted.

>
> f 0644 root:sys etc/pam.conf
>         - Looks like a lot of changes is for KDE.  Since we don't ship KDE,
>           do we need those changes?
>   

   No. This is actually a carry-over from BeleniX since the LiveKit had
   it's origins from the BeleniX build scripts.

> [...]
> f 0644 root:sys etc/rpc
>         - "sgi_fam" and "kde_dcompserver" are added.  Are they needed for us?
>   

   Not needed.

> f 0644 root:sys etc/devlink.tab
>         - ????
>   

   This should be removed from the bootcd_skel as it is auto-generated in
   the proto.

> f 0644 root:root etc/nsswitch.conf
>         - Looks the same as the normal nsswitch.files to me.  Can we just
>           copy nsswitch.files to be this one?
>   

   Yes.

> f 0644 root:root etc/nsswitch.nis
>         - Why need to use NIS?
>   

   This is needed if the DHCP server provides NIS and the user
   wants to use it.

> d 0755 root:root etc/xconfigs
> f 0644 root:root etc/xconfigs/xorg.conf.virtpc
> f 0644 root:root etc/xconfigs/xorg.conf.f4k
>         - Special config for the Xserver for certain type of graphics card??
>   

   Not needed.

> f 0644 root:sys etc/logindevperm
>         - ??? don't know what is special about this compare to the default
>
> f 0640 root:smmsp etc/mail/aliases.db
>         - Not delivered in any package.  Not sure why this is needed.
>
> f 0644 root:sys etc/security/device_policy
>         - Not sure what is needed here
>   

   These are all auto-generated in proto, so can be removed from
   bootcd_skel.

> f 0644 root:sys etc/services
>         - Added the "KDE" service?
>   

   Again carry over from BeleniX.

Regards,
Moinak.


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