Hi guillem, Thanks for your quick response.:)
>You could try using a different compression though (if you are using gz that is), like xz. How to specify the different compression, I find 'dpkg-deb -Z' could specifiy the compression type, but only gzip, bzip, lzma could be choosen.How to use xz？ >But dpkg-deb should handled that more gracefully, I'll fix this in my next push. Do you have a schedule for your fix? After your push, dpkg-deb could build/extract the package which have size more than 9536.74 MiB? Then is threre any new size limitation after your push? Thank you. He Qingsheng SWE(Software Environment) Sony Mobile Communications Tel: +8610-5865-6414 sonymobile.com -----Original Message----- From: Guillem Jover [mailto:guil...@debian.org] Sent: Monday, June 25, 2012 4:31 PM To: He, Qingsheng 2; 678...@bugs.debian.org Subject: Re: Bug#678933: dpkg: bad magic at end of first header Hi! On Mon, 2012-06-25 at 14:55:58 +0800, Qingsheng wrote: > Package: dpkg > Version: 1.15.5.6ubuntu4.5 > Severity: important > > When deal with large pacakge(>10G Bytes), dpkg-deb/dpkg with a > 'bad magic at end of first header' error when using 'dpkg-deb -e' > to extract the package. > > Say if use 'dpkg-deb -b' to build a large package(>10G Bytes), it > is ok. but if 'dpkg-deb -e' to extract the package, error will > happenned. > Is there any size limitation for dpkg/dpkg-deb tools? Yes the common ar format allows only for approx 9536.74 MiB member files, so if your data.tar.gz file member is bigger than that it will not be storable there. You could try using a different compression though (if you are using gz that is), like xz. But dpkg-deb should handled that more gracefully, I'll fix this in my next push. thanks, guillem
