Date: Fri, 23 Jan 2009 16:13:13 +0900 From: Daichi GOTO <daichi@ongs.co.jp> To: FreeBSD Current <freebsd-current@freebsd.org> Subject: sparse file issue?, dd(1) works well but tar(1) not on different partition Message-ID: <49796E09.7000805@ongs.co.jp>
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Hi sparse guys (?) I have been wondering about sparse file transportation between different partitions on -current. For example, /localapps/qemu/ on local disk (UFS2) /nfshome/user/ on NFS (UFS2) /localapps/qemu/disk0image 20GB qemu diskimage sparsed file then, follow operation works well. # cd /localapps/qemu/ # tar cpf - disk0image | tar xpf - -C /nfshome/user/ # cd /nfshome/user/ # dd if=disk0image of=disk0image-sparse conv=sparse But # cd /localapps/qemu/ # tar cpf - disk0image | tar xpf - -S -C /nfshome/user/ gets follow error message. # tar cpf - disk0image | tar xpf - -S -C /nfshome/user/ disk0image: Write request too large tar: Error exit delayed from previous errors. # tar(1) cannot do sparse output between different partations? Have I missed something important point? If you have any ideas, teach me. Thanks :) -- Daichi GOTO, http://people.freebsd.org/~daichi
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