Date: Tue, 11 Dec 2001 13:42:25 -0600 (CST) From: Jon Mini <haikugeek@haikugeek.com> To: John Baldwin <jhb@FreeBSD.ORG> Cc: Peter Wemm <peter@wemm.org>, <cvs-all@FreeBSD.ORG>, <cvs-committers@FreeBSD.ORG> Subject: Re: cvs commit: src/lib/libstand stand.h Message-ID: <Pine.LNX.4.33.0112111338220.15609-100000@westhost36.westhost.net> In-Reply-To: <XFMail.011210235131.jhb@FreeBSD.org>
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On Mon, 10 Dec 2001, John Baldwin wrote: > On 11-Dec-01 Peter Wemm wrote: > > John Baldwin wrote: > > > > We can write to (and even expand / create) files on EFI systems as well. > > I dont think the glue to do it is present though. > > You don't need much glue to do it. libefi just needs to support writing to the > low-level driver and the fs in libstand needs write support. > The framework can deal with writing to or expanding files. The functionality to create new files or delete existing files doesn't exist in the fs abstraction code (fsil? vfs? whatever..). However, appending to files is entirely handled within the FS code. The reason why only overwriting existing files is supported in UFS is because none of the fsck(8) code is present in the loader, so the filesystem may be dirty when written to. In that case, it is significantly dangerous to change the allocation mappings of the filesystem. Filesystems like FAT that don't have a formal mount/unmount process, or any journaled filesystem wouldn't be the same. I'm planning on writing FAT write support to loader, and when I do that, I'll add the functionality to the glue code to create new files and delete existing files. -- Dizzy Cow (Jon Mini) dizzycow@haikugeek.com ... Desolation ... Despair ... Plastic Forks ... ~ ~ ~ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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