Bug 5335 – dd fails on 2GB disks (write only)

Bug 5335 - dd fails on 2GB disks (write only)

Summary:	dd fails on 2GB disks (write only)

Status:	CLOSED DEFERRED

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	glibc (Show other bugs)
Sub Component:
Version:	6.0
Hardware:	i386 Linux

Priority	medium Severity medium
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Assigned To:	Cristian Gafton
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Reported:	1999-09-23 14:35 EDT by michaelg
Modified:	2008-05-01 11:37 EDT (History)
CC List:	1 user (show)

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Doc Type:	Bug Fix
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Last Closed:	2000-02-16 16:13:50 EST
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Description michaelg 1999-09-23 14:35:44 EDT

When reading large files > 2Gb it works fine, but writing
gives an error when using SEEK.

E.g. a 4 Gb disk on /dev/hdc:

# dd if=/dev/zero of=/dev/hdc bs=1M seek=4000 count=1

gives an invalid arguement error.

Thanks
Michael

Comment 1 Erik Troan 2000-02-16 16:13:59 EST

This can't be fixed until 64-bit file support is integrated into the standard
Linux kernel due to dd semantics (we need ftruncate64())

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