On Wed, Feb 18, 2004 at 11:37:26AM +1100, Bruce Evans wrote: > On Tue, 17 Feb 2004, Tim Robbins wrote: > > > > 5BOn Tue, Feb 17, 2004 at 11:16:50AM +0100, Stefan Krantz wrote: > > > > > > I would like to extract a large (11GB) tar file on an ext3 filesystem. But > > > > > > it shows only to be about 3gb large: > > > > > > > > > > > > yabba# ls -la pictures.tar > > > > > > -rw-r--r-- 1 root wheel 3317055488 Feb 15 19:03 pictures.tar > > > > > > > > > > > > Is there any possible way to extract the file? > > > Try this patch and let me know how it goes. You'll have to specify > > the file name of /sys/gnu/ext2fs/ext2_inode_cnv.c to patch(1) manually, > > then either buildkernel or rebuild only ext2fs.ko. If the file shows > > up with the correct size in a directory listing, make sure you can actually > > read data past 4 GB. > > > > ==== //depot/user/tjr/freebsd-tjr/src/sys/gnu/ext2fs/ext2_inode_cnv.c#1 - > > /p4/tjr/src/sys/gnu/ext2fs/ext2_inode_cnv.c ==== > > @@ -77,6 +77,8 @@ > > */ > > ip->i_mode = ei->i_links_count ? ei->i_mode : 0; > > ip->i_size = ei->i_size; > > + if (S_ISREG(ip->i_mode)) > > + ip->i_size |= ((u_int64_t)ei->i_size_high) << 32; > > ip->i_atime = ei->i_atime; > > ip->i_mtime = ei->i_mtime; > > ip->i_ctime = ei->i_ctime; > > @@ -112,6 +114,8 @@ > > */ > > ei->i_dtime = ei->i_links_count ? 0 : ip->i_mtime; > > ei->i_size = ip->i_size; > > + if (S_ISREG(ip->i_mode)) > > + ei->i_size_high = ip->i_size >> 32; > > ei->i_atime = ip->i_atime; > > ei->i_mtime = ip->i_mtime; > > ei->i_ctime = ip->i_ctime; > > > > The feature stuff needs to be handled for writing.
I discovered that a few minutes after posting the patch :-) I decided to take the lazy way out for now and to return EFBIG if we would need to upgrade the filesystem to EXT2_DYNAMIC_REV or set ..._RO_COMPAT_LARGE_FILE. I think what's most important here is being able to read large files from Linux ext2 filesystems, and I don't like the current ext2 code enough to implement superblock updating etc. Tim _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"