Date: Wed, 3 Nov 2004 12:19:07 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-current@freebsd.org Cc: "Thyer, Matthew" <Matthew.Thyer@dsto.defence.gov.au> Subject: Re: USB Key Disk Boot Message-ID: <200411031219.18088.doconnor@gsoft.com.au> In-Reply-To: <BDAD4DA0.7BA10%joe@via.net> References: <BDAD4DA0.7BA10%joe@via.net>
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--nextPart1414373.FCvV1IzkBr Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Wed, 3 Nov 2004 08:13, joe mcguckin wrote: > Most USB keys don't have a rw/ro switch. Is there a kernel flag you can s= et > to tell FreeBSD that boot device is flash and that writes should be kept = to > a minimum? Can swap space be completely done away with? There is the kernel option NO_SWAPPING. As for writes to an FS.. I think you might want to check out some of the=20 diskless work which uses MFS to hold things. > Thanks! > > Joe > > On 11/2/04 11:51 AM, "Doug White" <dwhite@gumbysoft.com> wrote: > > On Tue, 2 Nov 2004, joe mcguckin wrote: > >> You neglect to state the minimum size USB key for a standard FreeBSD > >> install. > > > > My 4.X router at home has a fairly complete system install in 128MB. > > Thats without any special pruning whatsover, just base+crypto. With some > > work (minibsd, nanobsd, etc.), you can do alot better than that. > > > > Note that I creatd that from a second system and dd'd the flash card ov= er > > so UFS wouldnt' burn out the flash, but I suppose you could install > > direct to it if you odn't plan on writing to the key afterward. UFS do= es > > exra bad things to flash (think superblock updates), so you don't want = to > > leave it read/write for very long. > > > >> -joe > >> > >> > >> On 11/2/04 12:07 AM, "Thyer, Matthew" > >> <Matthew.Thyer@dsto.defence.gov.au> > >> > >> wrote: > >>> To install onto this device: > >>> > >>> Simply boot your installation media (CD) and do your installing on the > >>> device > >>> "da0" (the first SCSI device - this is likely to be your USB Key unle= ss > >>> you already have SCSI hard disk drives in your system). > >>> > >>> As for booting, you will have to understand how to change your BIOS to > >>> ensure > >>> the correct boot order. Many BIOS's will boot on these devices if you > >>> have "USB-ZIP" as the first boot device. If that doesn't work try > >>> "USB-HDD" or just "USB". > >>> > >>> If your Key device is too small to accommodate a minimal install of > >>> FreeBSD then you will need to investigate the more embedded solutions > >>> such as PicoBSD. > >>> This is an advanced topic which will require an experienced UNIX > >>> specialist to > >>> implement. You may be able to find various how-to type procedures on > >>> the Web > >>> and the FreeBSD handbook should be very useful but this is not > >>> something for the fainthearted. > >>> > >>> As for the booting process, it is described in the manual page for > >>> "boot". > >>> > >>> > >>> Matthew Thyer Phone: +61 8 8259 7249 > >>> Science Corporate Information Systems Fax: +61 8 8259 5537 > >>> Defence Science and Technology Organisation, Edinburgh > >>> PO Box 1500 EDINBURGH South Australia 5111 > >>> > >>> IMPORTANT: This email remains the property of the Australian Defence > >>> Organisation and is subject to the jurisdiction of section 70 of the > >>> CRIMES ACT 1914. If you have received this email in error, you are > >>> requested to contact the sender and delete the email. > >>> > >>> > >>> _______________________________________________ > >>> freebsd-current@freebsd.org mailing list > >>> http://lists.freebsd.org/mailman/listinfo/freebsd-current > >>> To unsubscribe, send any mail to > >>> "freebsd-current-unsubscribe@freebsd.org" =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1414373.FCvV1IzkBr Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQBBiDke5ZPcIHs/zowRAoZ+AJ92UWQKm75kFD+MwF3Qy3VXoOmtRACdEhHp J9TFEB4ePOMub61kmYkQsZc= =sUPS -----END PGP SIGNATURE----- --nextPart1414373.FCvV1IzkBr--
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