Date: Tue, 15 Jan 2002 12:11:32 +1030 (CST) From: "Wilkinson,Alex" <Alex.Wilkinson@dsto.defence.gov.au> To: <linuxsa@linuxsa.org.au>, <buga@lemis.com> Cc: <hackers@freebsd.org>, <freebsd-questions@freebsd.org> Subject: Super Block Message-ID: <20020115120052.B8750-100000@squirm.dsto.defence.gov.au>
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Howdy Crew, I am wanting to find out the significance of the Super Block, whether FreeBSD, Linux, Solaris... whatever. I know: * The Super Block contains critical data for the device's filesystem [but what ??]. * It is located on sectors 16 through 31 at the beggining of the device. * FreeBSD keeps an alternate SuperBlock at the begging of every cylinder group. * The first alternate Super block on FBSD is at block 32. This is all the info I could scrounge up. What does the SuperBlock actually do ? Why is the SuperBlock so critical ? Can anyone give me a *good* summary on the purpose of the Super Block ? And/Or any recommendations ? Thanks - Alex To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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