Re: Unpacking VMDK via 7z
you are right, the following command: 7z i shows all supported archive formats will look into FUSE filesystem Thanks -D On Sun, Aug 5, 2018 at 9:01 PM, Stefan Bodewig wrote: > On 2018-08-05, Dan Tran wrote: > > > Thanks for the explanation > > > my vmware's vmdk file starts out with 'KDMV'. This explains about the > > stack trace. > > > additional info > > > * 7z for windows can uncompress it, but not 7z for linux, and winzip > for > > windows > > * commons-vfs does not support 7z/vmdk format. > > https://commons.apache.org/proper/commons-vfs/filesystems.html > > I'm not an expert at all, but I think vmdk is not really related to 7z > at all, it just happens that 7z (on Windows) can read vmdks. When I > suggested VFS would be a better fit I was thinking about which Commons > component would be a good home if anybody wanted to add support for > vmdks - not that support was already there. Sorry I was misleading you. > > > so 7z for windows is the only option which I can't use since my CI is on > > Linux > > A quick search lead me to > http://forensicswiki.org/wiki/VMWare_Virtual_Disk_Format_(VMDK) which > again linked to https://github.com/libyal/libvmdk/ which contains a tool > to mount vmdks as FUSE file systems on Linux (among ither things). So I > think there are more options if you dig deeper. > > Stefan > > - > To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > For additional commands, e-mail: user-h...@commons.apache.org > >
Re: Unpacking VMDK via 7z
On 2018-08-05, Dan Tran wrote: > Thanks for the explanation > my vmware's vmdk file starts out with 'KDMV'. This explains about the > stack trace. > additional info > * 7z for windows can uncompress it, but not 7z for linux, and winzip for > windows > * commons-vfs does not support 7z/vmdk format. > https://commons.apache.org/proper/commons-vfs/filesystems.html I'm not an expert at all, but I think vmdk is not really related to 7z at all, it just happens that 7z (on Windows) can read vmdks. When I suggested VFS would be a better fit I was thinking about which Commons component would be a good home if anybody wanted to add support for vmdks - not that support was already there. Sorry I was misleading you. > so 7z for windows is the only option which I can't use since my CI is on > Linux A quick search lead me to http://forensicswiki.org/wiki/VMWare_Virtual_Disk_Format_(VMDK) which again linked to https://github.com/libyal/libvmdk/ which contains a tool to mount vmdks as FUSE file systems on Linux (among ither things). So I think there are more options if you dig deeper. Stefan - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
Re: Unpacking VMDK via 7z
Hi Stefan, Thanks for the explanation my vmware's vmdk file starts out with 'KDMV'. This explains about the stack trace. additional info * 7z for windows can uncompress it, but not 7z for linux, and winzip for windows * commons-vfs does not support 7z/vmdk format. https://commons.apache.org/proper/commons-vfs/filesystems.html so 7z for windows is the only option which I can't use since my CI is on Linux Thanks -Dan On Sun, Aug 5, 2018 at 7:45 AM, Stefan Bodewig wrote: > On 2018-08-04, Dan Tran wrote: > > > here is the stack trace > > > Caused by: java.io.IOException: Bad 7z signature > > at org.apache.commons.compress.archivers.sevenz.SevenZFile. > readHeaders(SevenZFile.java:326) > > This means Commons Compress doesn't recognize the file as a 7z > archive. A 7z archive Compress knows to deal with starts with the six > bytes > > 37 7A BC AF 27 1C > > - the first two bytes are "7z" - and your archive doesn't seem to do so. > > The 7z utility supports a lot of formats beyond 7z, maybe it does > support vmdks directly? If the vmdk format is > https://www.vmware.com/support/developer/vddk/vmdk_50_technote.pdf or > something similar then Commons VFS would look like a more natural place > for support than Compress IMHO. > > Stefan > > - > To unsubscribe, e-mail: user-unsubscr...@commons.apache.org > For additional commands, e-mail: user-h...@commons.apache.org > >
Re: Unpacking VMDK via 7z
On 2018-08-04, Dan Tran wrote: > here is the stack trace > Caused by: java.io.IOException: Bad 7z signature > at > org.apache.commons.compress.archivers.sevenz.SevenZFile.readHeaders(SevenZFile.java:326) This means Commons Compress doesn't recognize the file as a 7z archive. A 7z archive Compress knows to deal with starts with the six bytes 37 7A BC AF 27 1C - the first two bytes are "7z" - and your archive doesn't seem to do so. The 7z utility supports a lot of formats beyond 7z, maybe it does support vmdks directly? If the vmdk format is https://www.vmware.com/support/developer/vddk/vmdk_50_technote.pdf or something similar then Commons VFS would look like a more natural place for support than Compress IMHO. Stefan - To unsubscribe, e-mail: user-unsubscr...@commons.apache.org For additional commands, e-mail: user-h...@commons.apache.org
Re: Unpacking VMDK via 7z
I guess the most simple explanation is that this is not a 7z Archive, have you tried the normal zip archives instead? (The 7zip program supports multiple formats) -- https://Bernd.eckenfels.net Von: Dan Tran Gesendet: Samstag, August 4, 2018 6:27 PM An: Commons Users List Betreff: Re: Unpacking VMDK via 7z here is the stack trace Caused by: java.io.IOException: Bad 7z signature at org.apache.commons.compress.archivers.sevenz.SevenZFile.readHeaders(SevenZFile.java:326) at org.apache.commons.compress.archivers.sevenz.SevenZFile.(SevenZFile.java:241) at org.apache.commons.compress.archivers.sevenz.SevenZFile.(SevenZFile.java:108) at org.apache.commons.compress.archivers.sevenz.SevenZFile.(SevenZFile.java:262) Thanks -D On Fri, Aug 3, 2018 at 11:21 PM, Dan Tran wrote: > Hi > > I have a vmware's vmdk file with no problem to unpack using my windows 7z > command > > however, common-compress error out at > > SevenZFile sevenZFile = new SevenZFile(my.vmdk.file) > > with "Bad 7z signature" error message > > am I missing something obvious? > > Thanks > > -D >
Re: Unpacking VMDK via 7z
here is the stack trace Caused by: java.io.IOException: Bad 7z signature at org.apache.commons.compress.archivers.sevenz.SevenZFile.readHeaders(SevenZFile.java:326) at org.apache.commons.compress.archivers.sevenz.SevenZFile.(SevenZFile.java:241) at org.apache.commons.compress.archivers.sevenz.SevenZFile.(SevenZFile.java:108) at org.apache.commons.compress.archivers.sevenz.SevenZFile.(SevenZFile.java:262) Thanks -D On Fri, Aug 3, 2018 at 11:21 PM, Dan Tran wrote: > Hi > > I have a vmware's vmdk file with no problem to unpack using my windows 7z > command > > however, common-compress error out at > > SevenZFile sevenZFile = new SevenZFile(my.vmdk.file) > > with "Bad 7z signature" error message > > am I missing something obvious? > > Thanks > > -D >
