Date: Thu, 18 Apr 2002 12:20:03 -0700 (PDT) From: Aggelos Economopoulos <lydwigvernon@yahoo.co.uk> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/37063: [PATCH] kernel does not support extended linux partitions Message-ID: <200204181920.g3IJK3M94000@freefall.freebsd.org>
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The following reply was made to PR kern/37063; it has been noted by GNATS. From: Aggelos Economopoulos <lydwigvernon@yahoo.co.uk> To: Bruce Evans <bde@zeta.org.au> Cc: freebsd-gnats-submit@FreeBSD.ORG Subject: Re: kern/37063: [PATCH] kernel does not support extended linux partitions Date: Thu, 18 Apr 2002 22:19:18 +0300 On Thursday 18 April 2002 13:51, Bruce Evans wrote: > On Tue, 16 Apr 2002, [iso-8859-7] Άγγελος Οικονομόπουλος wrote: > > On Tuesday 16 April 2002 04:00, Bruce Evans wrote: > > > I don't agree with changing the current behaviour. Using extended > > > Linux partitions mainly breaks inter-operability with other OS's, > > > including previous versions of FreeBSD. > > > > But I'm not suggesting people to use 0x85 partitions. I' m merely > > suggesting that the kernel should provide for people who, for whatever > > reason (inertia?), are stuck with them. Some people call _this_ > > interoperability. > > I'd concerned about breaking configurations that use 0x85 for something > else. Even if it is for a Linux extended partition, recognizing it will > reorder the slice numbers for logical drives within ordinary extended > partitions if the Linux one is scanned first. Good point. I could argue that we can deal with this situation, but just thinking about the ugliness of the resulting code makes me want to puke. Please close the pr. Read on for the historical data you requested > > BTW, to my knowledge, extended linux partitions were used (in place of > > 0x05) to prevent certain versions of dos fdisk from crashing when it > > tries to follow beyond cyl 1024, that is, to preserve compatibility. (so > > for some people, using 0x85 could be a neccessity) > > Perhaps this is not really a problem now. I sometimes boot DOS-4.1 (1988 > version), and it is certainly confused by cylinders beyond 1024, but using > magic extended partition types wouldn't help much because it is the primary > partitions beyond cylinder 1024 that cause the biggest problems :-). > > Do you know which versions of Linux default to using 0x85? None that I know of. > The version > of Linux fdisk that I have handy (built on Apr 23 1997) doesn't mention > partition 0x85, but IIRC the Linux kernel support for partition 0x85 is > older. Much older. First appeared in 1.3.3x, that is, circa Nov 1995 > Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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