Re: [gentoo-user] Create mutli-file .zip archives from the command line?
Hi, On Sun, 13 Jan 2008 16:34:01 + Stroller [EMAIL PROTECTED] wrote: The file is the same size in bytes (8056211212) on the destination XP machine as it is on the Samba host, but the md5sums (using Sumemr Properties under XP) don't match. There is also the slight possibility that your md5sum util in Windows isn't dealing well with file offsets 4GB. Re-check using a different one, I'd say. -hwh -- gentoo-user@lists.gentoo.org mailing list
[gentoo-user] Create mutli-file .zip archives from the command line?
Hi there, Anyone got any suggestions on this, please? I have a honking great big DVD image on one of my servers seem to be having problems transferring it to a Windows box over a flakey wireless connection. I'm wondering if the reason is because it's over 4gb in size. What I thought to do was to break the .iso into a multi-part .zip archive, transfer the separate files over to the Windows PC and then unzip them back into the original big file using Explorer's built-in (XP) zip file handling. I know I could do this by using RAR - or some other untility - instead, but that would require me to install additional software on the PC, which I'd rather not do. Besides, I'm surprised to find that app-arch/zip - nor any other utility I can immediately find in Portage - doesn't seem to handle this. Thanks in advance for any comments, Stroller. -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
Hi! On Sun, 13 Jan 2008 14:21:30 + Stroller [EMAIL PROTECTED] wrote: What I thought to do was to break the .iso into a multi-part .zip archive, transfer the separate files over to the Windows PC and then unzip them back into the original big file using Explorer's built-in (XP) zip file handling. I know I could do this by using RAR - or some other untility - instead, but that would require me to install additional software on the PC, which I'd rather not do. Besides, I'm surprised to find that app-arch/zip - nor any other utility I can immediately find in Portage - doesn't seem to handle this. I don't know whether zip can do this, but you could use split to split the .iso into smaller pieces and then combine them on your Windows box with copy [1]. Cheers, Renat [1] http://technet.microsoft.com/en-us/library/bb490886.aspx -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein) signature.asc Description: PGP signature
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
Am Sonntag, 13. Januar 2008 schrieb Stroller: I know I could do this by using RAR - or some other untility - instead, but that would require me to install additional software on the PC, which I'd rather not do. You could use 7-Zip e.g. from portableapps.com So you don't need to install it. Besides, I'm surprised to find that app-arch/zip - nor any other utility I can immediately find in Portage - doesn't seem to handle this. Well, there is zipsplit which belongs to app-arch/zip. But I never used it. Maybe it does the trick for you. Regards, Jens -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
On Sun, 13 Jan 2008 15:59:04 +0100 Renat Golubchyk [EMAIL PROTECTED] wrote: Hi! On Sun, 13 Jan 2008 14:21:30 + Stroller [EMAIL PROTECTED] wrote: What I thought to do was to break the .iso into a multi-part .zip archive, transfer the separate files over to the Windows PC and then unzip them back into the original big file using Explorer's built-in The problem is that fat32 can't handle files that are larger than 4gb-1byte. So, will still be unable to unzip or unrar that iso image. Unzip would just stop with an error when it reaches that limit. This is a technical limitation of fat32 itself. There is nothing unzip or unrar could do about this. Fat32 just can't index more than 2^32 (4294967296) bytes. It uses 32 bits to index a given file, and any number above that (well, above 4294967295, since we start at 0) just doesn't fit into a 32 bits word. Which means that fat32 can't handle it. You have many other alternatives: use ntfs or even ext3/2. I know that there are drivers to use these filesystems on windows, I don't know how good or bad they are, though. :) -- Jesús Guerrero [EMAIL PROTECTED] -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
Hi, some file systems are not able to handle files bigger than size X. Fat32 for example only handles 4GB. Win often uses Fat32. Maybe this is your problem. Kons Renat Golubchyk wrote: Hi! On Sun, 13 Jan 2008 14:21:30 + Stroller [EMAIL PROTECTED] wrote: What I thought to do was to break the .iso into a multi-part .zip archive, transfer the separate files over to the Windows PC and then unzip them back into the original big file using Explorer's built-in (XP) zip file handling. I know I could do this by using RAR - or some other untility - instead, but that would require me to install additional software on the PC, which I'd rather not do. Besides, I'm surprised to find that app-arch/zip - nor any other utility I can immediately find in Portage - doesn't seem to handle this. I don't know whether zip can do this, but you could use split to split the .iso into smaller pieces and then combine them on your Windows box with copy [1]. Cheers, Renat [1] http://technet.microsoft.com/en-us/library/bb490886.aspx -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
On 13 Jan 2008, at 15:13, Jesús Guerrero wrote: On Sun, 13 Jan 2008 14:21:30 + Stroller [EMAIL PROTECTED] wrote: What I thought to do was to break the .iso into a multi-part .zip archive, transfer the separate files over to the Windows PC and then unzip them back into the original big file using Explorer's built-in The problem is that fat32 can't handle files that are larger than 4gb-1byte. So, will still be unable to unzip or unrar that iso image. I believe you're mistaken in the direct cause of my problem. I'm using NTFS on the Windows XP machine. The file is the same size in bytes (8056211212) on the destination XP machine as it is on the Samba host, but the md5sums (using Sumemr Properties under XP) don't match. The reason I mentioned 4gb is kinda off-topic here, but I've had problems in the past running BitTorrent on Linux box, saving files to a directory which was samba mounted from another Linux box. I assumed that there was some kind of 4gb limitation of SMB - and a friend remarked the same problems (using a Mac) - but googling does not seem to support this. Thanks to the other posters for their excellent suggestions - I'll try them later today report back. Stroller. -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
On Sun, 13 Jan 2008 16:34:01 + Stroller [EMAIL PROTECTED] wrote: On 13 Jan 2008, at 15:13, Jesús Guerrero wrote: On Sun, 13 Jan 2008 14:21:30 + Stroller [EMAIL PROTECTED] wrote: What I thought to do was to break the .iso into a multi-part .zip archive, transfer the separate files over to the Windows PC and then unzip them back into the original big file using Explorer's built-in The problem is that fat32 can't handle files that are larger than 4gb-1byte. So, will still be unable to unzip or unrar that iso image. I believe you're mistaken in the direct cause of my problem. I'm using NTFS on the Windows XP machine. The file is the same size in bytes (8056211212) on the destination XP machine as it is on the Samba host, but the md5sums (using Sumemr Properties under XP) don't match. The reason I mentioned 4gb is kinda off-topic here, but I've had problems in the past running BitTorrent on Linux box, saving files to a directory which was samba mounted from another Linux box. I assumed that there was some kind of 4gb limitation of SMB - and a friend remarked the same problems (using a Mac) - but googling does not seem to support this. Well, that is new info. If you are using ntfs then the issue is not the one I suspected. I know nothing about samba+big files, I did never use it with big files, but I haven't hear of such a problem before. I'd blame the wireless connection, but if the problem is only with that file, then that should not the be proble either. Anyway, I don't know if the winxp builtin feature supports multi part zip files, so I would bet that using split+copy would be the easiest thing to do. You can still compress it into a single zip file before splitting it, that way you might save some bandwidth (or not, since most of the dvd contents is already compressed via codecs anyway). -- Jesús Guerrero [EMAIL PROTECTED] -- gentoo-user@lists.gentoo.org mailing list
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
On Sun, 2008-01-13 at 16:04 +0100, [EMAIL PROTECTED] wrote: Am Sonntag, 13. Januar 2008 schrieb Stroller: I know I could do this by using RAR - or some other untility - instead, but that would require me to install additional software on the PC, which I'd rather not do. You could use 7-Zip e.g. from portableapps.com So you don't need to install it. Besides, I'm surprised to find that app-arch/zip - nor any other utility I can immediately find in Portage - doesn't seem to handle this. Well, there is zipsplit which belongs to app-arch/zip. But I never used it. Maybe it does the trick for you. Regards, Jens 7zip / p7zip can also create splitted zip-archives which you can unzip with any normal zip. Or you could create self extracting versions. 7z can create these, too (although I never tried). signature.asc Description: This is a digitally signed message part
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
On Sun, 2008-01-13 at 16:13 +0100, Jesús Guerrero wrote: On Sun, 13 Jan 2008 15:59:04 +0100 Renat Golubchyk [EMAIL PROTECTED] wrote: Hi! On Sun, 13 Jan 2008 14:21:30 + Stroller [EMAIL PROTECTED] wrote: What I thought to do was to break the .iso into a multi-part .zip archive, transfer the separate files over to the Windows PC and then unzip them back into the original big file using Explorer's built-in The problem is that fat32 can't handle files that are larger than 4gb-1byte. So, will still be unable to unzip or unrar that iso image. [...] You have many other alternatives: use ntfs or even ext3/2. I know that there are drivers to use these filesystems on windows, I don't know how good or bad they are, though. :) -- Ext2 is supposed to be on the same level with fat32 in terms of speed and stability. It doesn't care much about own and mod but that's it. AFAIK there is no ext3 driver,yet. But you can still mount these as ext2. Reiserfs is readonly. signature.asc Description: This is a digitally signed message part
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
On Sun, 13 Jan 2008 17:45:53 +0100 Jesús Guerrero [EMAIL PROTECTED] wrote: I know nothing about samba+big files, I did never use it with big files, but I haven't hear of such a problem before. As far as I know, Samba doesn't have problems with big files. I've burned large (4GB) DVD images on an XP box with not enough space on it requiring me to store the .iso on my Linux box connected over Samba. That is, the data was streamed over the network directly to the DVD drive. Cheers, Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein) signature.asc Description: PGP signature
Re: [gentoo-user] Create mutli-file .zip archives from the command line?
On 13 Jan 2008, at 16:45, Jesús Guerrero wrote: ... The problem is that fat32 can't handle files that are larger than 4gb-1byte. So, will still be unable to unzip or unrar that iso image. I believe you're mistaken in the direct cause of my problem. I'm using NTFS on the Windows XP machine. ... Well, that is new info. If you are using ntfs then the issue is not the one I suspected. Well, it didn't occur to mention NTFS vs FAT32 in my original post because it didn't occur to me that anyone might use FAT32 these days (except for portable devices, of course). ... I'd blame the wireless connection, but if the problem is only with that file, then that should not the be proble either. At the time of posting this morning I had no way to say whether or not I could reproduce the problem - this Windows PC gets switched on perhaps once every 3 months, and the original file took so long copying (over two hours yesterday) that I left it running overnight. I started another copy going this morning before I made my original post on this subject, and when I come back to the machine this evening it seems to have finished successfully - that is to say the md5sum matches up. So I apologise to the list for wasting it's time, but having said that I know I'm going to want to split recombine files cross- platform again sometime in the future, so I will remember this thread for reference. I won't go through making on line posts saying thanks! great idea! in reply to everyone who posted, but I'd like to thank everyone who has replied to my question. (For the record Renat Golubchyk's suggestion of split/copy was top of my list until I read Florian Philipp's reply, which is obviously pretty much exactly what I had in mind in the first place (and therefore requiring no additional thinking, always a priority); I am thankful to Jens for pointing me at portableapps.com) Stroller. -- gentoo-user@lists.gentoo.org mailing list
