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This chapter provides information for understanding the internals of FuguIta and for doing your own development based on FuguIta.
FuguIta is based on OpenBSD, so most of its components are openBSD-related information.
For the specific parts of FuguIta that are different from the official OpenBSD, please refer to List of published documents on the Japan Post top page of this site.
(Please note that some past materials may differ from the current FuguIta.)
FuguIta source code can be found at https://github.com/ykaw/FuguIta.
FuguIta has all writable files in memory, so even if the power is suddenly turned off without performing a shutdown operation, etc., there will be no problem with the file system.
Unless you save files with usbfadm during operation, the system will start up in the same state each time.
Using these characteristics, you can create a dedicated machine (Turn Key System) to run a specific application based on FuguIta.
To build such a system, we use a combination of the techniques described so far;
These detailed procedures can be found on this site Creating a router with Fuguita - Example of making an appliance and Practically used FuguIta to use.
FuguIta publishes the tools it uses to build the live system, albeit irregularly. By using this build tool, you can create a FuguIta ISO image file. This section describes how to build a LiveDVD.
[Memo]
⇒This construction method is for FuguIta 7.1 or later.
From now on, the creation procedure will be explained with an example.
Assuming OpenBSD 7.1 as the target version and amd64 as the platform.
In addition, the directory where the build tools are placed is written as FIBLD. Replace this part with the actual directory name.
fugu-demo# tar -xzp -C /usr/src -f sys.tar.gz
[Memo]
⇒To update the kernel source tree to the latest state, please refer to "1. Update sources" in the online manual release(8).
fugu-demo# mkdir -p FIBLD fugu-demo# cd FIBLD fugu-demo# ftp https://FUGUITA-MIRROR-SITE/tools/tools-7.1-amd64.tar.gz fugu-demo# tar -xzp -C FIBLD -f tools-7.1.tar.gz fugu-demo# mv tools-7.1-amd64 fugu-demo# rmdir tools-7.1-amd64
All the following operations are performed in the working directory FIBLD.
fugu-demo# cd FIBLD fugu-demo# make kernconfig fugu-demo# make kernclean fugu-demo# make kern
fugu-demo# ( cd install_sets
for f in base comp game man xbase xfont xserv xshare; do
ftp $(cat /etc/installurl)/7.1/amd64/${f}71.tgz
done )fugu-demo# PKG_CACHE=FIBLD/install_pkgs pkg_add -n rsync rlwrap pv fugu-demo# pkg_add install_pkgs/rsync*.tgz install_pkgs/pv*.tgz
fugu-demo# make stageIf you want to customize FuguIta, modify the file tree under the FIBLD/staging directory after running make stage.
fugu-demo# make sync
fugu-demo# make iso
fugu-demo# make gz
FuguIta-7.1-amd64-yyyymmddn.iso.gz is created in FIBLD. n is the build count number, which is recorded in the file FIBLD/revcount_cdmaster.
Creating a LiveUSB according to the capacity of the USB memory created a LiveUSB image file. Describes how to create an image.
[Memo]
⇒Since this operation deals with large size files, the size of mfs must be more than 2 gigabytes.
If mfs isn't enough, mount another recording device and work there.
This master_dvd.sh can be used with either a working FuguIta LiveDVD or FuguIta LiveUSB.
Below is an example of using remaster_dvd.sh.
First, create a working directory and copy the contents of LiveDVD/LiveUSB under sysmedia.
fugu-demo# mkdir work fugu-demo# cd work fugu-demo# cp -av /sysmedia . /sysmedia -> ./sysmedia /sysmedia/boot -> ./sysmedia/boot /sysmedia/bsd-fi -> ./sysmedia/bsd-fi /sysmedia/bsd-fi.mp -> ./sysmedia/bsd-fi.mp /sysmedia/boot.catalog -> ./sysmedia/boot.catalog /sysmedia/cdboot -> ./sysmedia/cdboot /sysmedia/cdbr -> ./sysmedia/cdbr /sysmedia/etc -> ./sysmedia/etc /sysmedia/etc/boot.conf -> ./sysmedia/etc/boot.conf /sysmedia/etc/random.seed -> ./sysmedia/etc/random.seed /sysmedia/fuguita-6.9-amd64.ffsimg -> ./sysmedia/fuguita-6.9-amd64.ffsimg fugu-demo# ls -l total 8 drwxr-xr-x 3 root wheel 432 May 11 09:21 sysmedia
Run remaster_dvd.sh inside the copied sysmedia directory. Basically that's all.
fugu-demo# cd sysmedia fugu-demo# ls -l total 2008728 -rw-r--r-- 1 root wheel 90496 May 10 20:57 boot -rwxr--r-- 1 root wheel 2048 May 9 12:31 boot.catalog -rw-r--r-- 1 root wheel 10273019 May 10 21:04 bsd-fi -rw-r--r-- 1 root wheel 10302063 May 10 21:04 bsd-fi.mp -rw-r--r-- 1 root bin 91668 May 10 01:31 cdboot -rw-r--r-- 1 root bin 2048 May 10 01:31 cdbr drwxr-xr-x 2 root wheel 96 Apr 17 2014 etc -rw-r--r-- 1 root wheel 1007681536 May 10 21:08 fuguita-6.9-amd64.ffsimg fugu-demo# remaster_dvd.sh mkhybrid 1.12b5.1 Scanning . Scanning ./etc Size of boot image is 4 sectors -> No-emulation CD boot sector Total translation table size: 0 Total rockridge attributes bytes: 1111 Total directory bytes: 2048 Path table size(bytes): 22 502200 extents written (980 Mb)
After executing remaster_dvd.sh, an ISO image file will be created in the working directory.
fugu-demo# ls -l .. total 2008808 -rw-r--r-- 1 root wheel 1028505600 May 14 02:34 FuguIta-6.9-amd64-202105141.iso drwxr-xr-x 3 root wheel 384 May 14 02:34 sysmedia fugu-demo# ls -l total 2008720 -rw-r--r-- 1 root wheel 90496 May 10 20:57 boot -rwxr--r-- 1 root wheel 2048 May 14 02:34 boot.catalog -rw-r--r-- 1 root wheel 10273019 May 10 21:04 bsd-fi -rw-r--r-- 1 root wheel 10302063 May 10 21:04 bsd-fi.mp -rw-r--r-- 1 root bin 91668 May 10 01:31 cdboot -rw-r--r-- 1 root bin 2048 May 10 01:31 cdbr drwxr-xr-x 2 root wheel 96 Apr 17 2014 etc -rw-r--r-- 1 root wheel 1007681536 May 10 21:08 fuguita-6.9-amd64.ffsimg
There is a file called fuguita-6.9-amd64.ffsimg in sysmedia, which contains the FuguIta file tree. You can customize your LiveDVD by modifying the files in this file tree.
fugu-demo# vnconfig vnd0 fuguita-6.9-amd64.ffsimg fugu-demo# mount /dev/vnd0a /mnt fugu-demo# ls -l /mnt total 52 -rw-r--r-- 1 root wheel 578 May 7 17:43 .cshrc -rw-r--r-- 1 root wheel 468 May 7 17:43 .profile drwxr-xr-x 2 root wheel 512 May 7 17:43 altroot drwxr-xr-x 2 root wheel 1024 May 7 17:46 bin drwxr-xr-x 2 root wheel 512 May 8 04:16 dev drwxr-xr-x 23 root wheel 1536 May 8 04:35 etc drwxr-xr-x 2 root wheel 512 May 7 17:43 home drwxr-xr-x 2 root wheel 512 May 7 17:43 mnt drwx------ 3 root wheel 512 May 8 04:35 root drwxr-xr-x 2 root wheel 1536 May 7 17:46 sbin lrwxrwx--- 1 root wheel 11 May 7 17:43 sys -> usr/src/sys drwxrwxrwt 2 root wheel 512 May 8 04:19 tmp drwxr-xr-x 14 root wheel 512 May 8 04:09 usr drwxr-xr-x 23 root wheel 512 May 7 17:43 var .... (Customization work) ...
Once customization is complete, close the filesystem image and remaster.
fugu-demo# umount /mnt fugu-demo# vnconfig -u vnd0 fugu-demo# remaster_dvd.sh mkhybrid 1.12b5.1 Scanning . Scanning ./etc : :
This section introduces how to create a LiveUSB disk image file.
Run usbfadm newdrive:
? : ? ->newdrive Please make sure the device inserted. Then press ENTER -> ==== disk(s) and vnode devices ============================ sd0 at scsibus1 targ 0 lun 0: <ATA, Hitachi HTS72757, JF4O> sd0: 715404MB, 512 bytes/sector, 1465149168 sectors sd1 at scsibus2 targ 1 lun 0: <UFD 3.0, Silicon-Power32G, 1.00> sd1: 29624MB, 512 bytes/sector, 60669952 sectors sd2 at scsibus5 targ 1 lun 0: <BUFFALO, USB Flash Disk, 4000> sd2: 7788MB, 512 bytes/sector, 15950592 sectors vnd0: not in use vnd1: not in use vnd2: not in use vnd3: not in use vnd4: not in use vnd5: covering /sysmedia/fuguita-6.4-amd64.ffsimg on sd1a, inode 9 ============================================================ Enter the name of device which FuguIta will be installed->vnd0 ← Specify an unused vnode device Enter size of a vnode device file. You can add suffix K, M, G or T (otherwise considered 'bytes'). ->2g 2048+0 records in 2048+0 records out 2147483648 bytes transferred in 3.076 secs (698129518 bytes/sec) Disk: vnd0 geometry: 41943/1/100 [4194304 Sectors] Offset: 0 Signature: 0x0 Starting Ending LBA Info: #: id C H S - C H S [ start: size ] ------------------------------------------------------------------------------- 0: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused 1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused 2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused 3: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused Select partition type: 1: [MBR] 2: GPT 3: Hybrid (not recommended if you wish modify partitioning later) -> ～ 略 ～ ** Phase 5 - Check Cyl groups 3 files, 3 used, 386996 free (20 frags, 48372 blocks, 0.0% fragmentation) ? : ? ->bye Bye bye... $
A disk image file is created in the current directory by the above operations. The file name will be the same as the distributed one, "FuguIta-OPENBSD_VERSION-PLATFORM-RELEASE.img".
