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
