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Diffstat (limited to 'bootscripts/contrib/lsb-v3/README')
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diff --git a/bootscripts/contrib/lsb-v3/README b/bootscripts/contrib/lsb-v3/README new file mode 100644 index 000000000..a2649bce0 --- /dev/null +++ b/bootscripts/contrib/lsb-v3/README @@ -0,0 +1,105 @@ +LSB-V3 README + +The scripts contianed in this directory are a complete rewrite of the +boot scripts from LFS-6.1 (updated for LFS-SVN about 2008-04-13). As is +usually the case with a rewrite, there have been many changes: + +LSB Version 3.1 Compliant Scripts - Immediately noticable are the LSB headers +in the rc.d scripts themselves. Each script contains a usable header to +allow for automating both the installation of, and determining proper +execution order for the startup scripts. These values can also be used +directly in parallel boot setups. Additionally, messages are displayed in +one single write to the screen, after exit status is determined, so that +they can be used in parallel setups. I am not sure if this was the only +barrier to auto language translation in the previous bootscripts. Further, +the messages are created from parts and only written to the screen in a +single command, so maybe no help at all WRT translated boot messages. + +LSB 3.1 Omissions - Unfortunately, this package is not completely LSB +compliant as it lacks install-initd and remove-initd programs. The current +popular flavor of these programs is written in Python, which, as you should +know, is not installed until BLFS. I began work on a bash implementation, +and have provided the needed functions to parse the LSB headers in the +manage-functions script (insalled by default into /lib/lsb). Unfortunately, +I have yet to complete the actual install-initd and remove-initd scripts, +however, I do have an almost complete install-initd kept locally. I am +currently working on a separate script to completely rewrite the symlinks +should LFS default values not prove sufficient when working with scripts in +the wild. I have not included either here because they are not yet complete +or thoroughly tested, and due to the development process of lfs-bootscritps, +would be included in a release tarball. If you would like to assist with the +development of these scripts, or would even just like to see what I have so +far, please email me privately. Of course, feel free to write your own if you +do not like the manage-fucntions script (or bash). + +Distribution Independent - this original goal for the LFS scripts has been +stretched even further by providing both a global rc config file that +contains (generally) static values, and a new rc.site config file to allow +customization of messages as diplayed to the end user during the boot +process. The format of messages printed to the screen is adjustable +here. As well, the other options that were available in the previous +versions of the lfs-bootscripts, and additional options as discussed below, +are configurable by the /etc/sysconfig/rc.site file. + +Single Environment - The rc script has been rewritten completely to allow a +single source of the boot configuration per runlevel change. This config +is inherited from rc's environment as opposed to being sourced everytime a +script is run. This results in a negledgable decrease in boot time, but +it is just better in principle. + +Boot Logging - The previous incarnation of the boot log didn't begin +recording events until the root filesystem was mounted read/write. This has +been corrected by providing a tempfs mount immediately after init hands +control to the rc script. The bootlog is generated on the tempfs and then +passed to the log file before login. Additionally, shutdown events are no +longer recorded in the bootlog. They were pretty much useless and it really +wasn't what I'd call a *boot* log. Boot logging is on by default and is +configurable in the /etc/sysconfig/rc.site file. + +Interactive Boot - This feature has been included by default, and is a +little more polished than my previous attempt. It does introduce a two +second delay in the boot process (so that you have time to press a button +to select interactive mode). This time value, and the option prompt itself, +is configurable in the /etc/sysconfig/rc.site file. + +RC_BASE - The base directory for the bootscripts is now /etc, not +/etc/rc.d. This is mostly to conform with mainstream distros, but other +boot methods do expect that /etc/init.d is the location of bootscripts. +Some distros provide a rc.d direcorty with symlinks to the rc*.d and init.d +directories, I have not done that. /etc is the location now, get your +flying fingers accustomed to it! Of course, this is still configurable in +/etc/sysconfig/rc.site, and if the change is too great, I'll put it back. + +LSB Functions - The previous lfs-bootscripts sourced a functions file +located at /etc/rc.d/init.d/functions. This file has been renamed +$distro-functions to segregate it from the old. The name is configurable +by the rc.site configuration file. Both old and new bootscripts can be +used simultaneously in a SYS-V setup (with proper symlinks in place). +LSB defined functions are used where possible, but the $distro-functions file +provides, easy to use wraper functions that +start/stop/reload/force-reload/restart programs, evaluate the numerical +LSB return values, and print status messages to the screen. Both LFS +functions and LSB functions are documented directly in the scritps located +at /etc/init.d/$distro-functions and /lib/lsb/init-functions respectively. + +Pretier - Yeah, I just couldn't handle all the grey text... By default, +successful boot messages are prefixed with a single green astrik character, +warning messages with two yellow astirks, and failures are prefixed with +three red astriks. This just provides a second 'quick glance' status when +watching the boot messages fly by. Again, the prefixes are configurable (or +completely removable) in the /etc/sysconfig/rc.site file. + +Complete Rewrite - Yep. That doesn't mean that code wasn't reused when +possible, so Alexander, Bryan, Dan, Gerard, Jeremy, Jim, Mathias, Matthew, +Nathan, and countless other contributors (whose names I've forgotten and will +promptly be reminded of (please)) are due credit for these as well. That +said, at very least, this is a complete reorganisation that I've tested to +the best of my ability, but there probably are some hidden bugs that will +come to lite when used more frequently. Please give me a shout _when_ you +find them. + +Thanks. + +-- DJ Lucas +dj@linuxfromscratch.org + |