Date: Wed, 16 Oct 2002 10:36:18 -0700 From: walt <wa1ter@hotmail.com> To: freebsd-current@freebsd.org Subject: Re: GEOM question Message-ID: <3DADA392.3000308@hotmail.com> References: <aojv21$4u2$1@FreeBSD.csie.NCTU.edu.tw>
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Bruce Evans wrote: > On Wed, 16 Oct 2002, walt wrote: > > >>Bruce Evans wrote: >> >> >>>Don't use extended partitions directly. It is easy to >>>make a mess by clobbering the pointers to the logical drive >>>within them. >>I need to ask for clarification on this point. What do you >>mean by 'directly'? > Just write to them using anything that doesn't understand that they > are containers for logical drives. E.g., newfs would leave their > boot record intact since it leaves some sectors for the label and > boot blocks, but it would scribble over any logical drives within the > extended partition in a non-useful way. Once again you leave me puzzled. 'newfs /dev/ad2s8' is exactly how I formatted the partition and everything is working perfectly. I went back and checked the other four filsystems in that extended partition and none of them have errors. (Two fat32, one ext2, one NTFS.) In addition I see this on -CURRENT (with GEOM): #disklabel ad2s8 disklabel: ioctl DIOCGDINFO: Operation not supported by device and this on -STABLE (different machine): # disklabel ad0s7 disklabel: ioctl DIOCGDINFO: Invalid argument so (for me) disklabel does not work on extended/logical partitions. I'm wondering if something major has changed in the years since you last tried using logical drives in FreeBSD? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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