Re: Preventing rsync of copying always all files to my pen
On Sat, Sep 27, 2008 at 6:21 PM, Patrick O'Callaghan <[EMAIL PROTECTED]> wrote: >> >> I have often to synchronize a directory from my computer to a pen >> >> drive. To accomplish this, I use the following command: >> >> >> >> rsync -urva --delete /home/psmith/mydirectory/ >> >> /media/MYPEN/mydirectory/ >> > >> > Which messages do you see and what mount options are used for mounting the >> > FAT partition? I've tried your scenario and I get messages like this: >> > >> > rsync: chgrp "/media/USBDRIVE/." failed: Operation not permitted (1) >> > >> > Generally using -a on ext[23] -> FAT transfers is not a good idea, >> > because -a implies -rlptgoD (according to man-pages) but FAT does not >> > support user or group information, links or devices >> > >> > I suppose a simplier "rsync -rtv" should accomplish what you need. >> > >> > You might even want to try unison - it can synchronise two folders in both >> > directions, copying newest files from one directory to its counterpart. >> >> Thanks, Adalbert. The messages that I get are: >> >> "rsync warning: some files vanished before they could be transferred >> (code 24) at main.c(1040) [sender=3.0.3]" >> >> This happens with accented filenames. >> >> After having removed all accents, I do not get any error message. >> >> Still the reported problem occurs: rsync needs to copy all files after >> umounting and subsequent mounting of my pen. This is the behavior that >> I am wanting to control: rsync should copy only modified files. Before >> unmounting my pen, rsyinc copies only modified files; but after having >> umounted my pen and mounted it again, rsync copies all files. Any >> ideas? > > Actually it does the same thing even if you don't unmount the pendrive > (I just tried it). > > According to the rsync(1) BUGS section: "When transferring to FAT > filesystems rsync may re-sync unmodified files. See the comments on the > --modify-window option." Thanks, Patrick and Les. With the option --modify-window=1 it only re-syncs modified files. Explanation (from "man rsync"): "When comparing two timestamps, rsync treats the timestamps as being equal if they differ by no more than the modify-window value. This is normally 0 (for an exact match), but you may find it useful to set this to a larger value in some situations. In particular, when transferring to or from an MS Windows FAT filesystem (which represents times with a 2-second resolution), --modify-window=1 is useful (allowing times to differ by up to 1 second)". The problem with accented filenames is solved with the option --iconv=iso88591,utf8 Paul -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Preventing rsync of copying always all files to my pen
Paul Smith wrote: I have often to synchronize a directory from my computer to a pen drive. To accomplish this, I use the following command: rsync -urva --delete /home/psmith/mydirectory/ /media/MYPEN/mydirectory/ Which messages do you see and what mount options are used for mounting the FAT partition? I've tried your scenario and I get messages like this: rsync: chgrp "/media/USBDRIVE/." failed: Operation not permitted (1) Generally using -a on ext[23] -> FAT transfers is not a good idea, because -a implies -rlptgoD (according to man-pages) but FAT does not support user or group information, links or devices I suppose a simplier "rsync -rtv" should accomplish what you need. You might even want to try unison - it can synchronise two folders in both directions, copying newest files from one directory to its counterpart. Thanks, Adalbert. The messages that I get are: "rsync warning: some files vanished before they could be transferred (code 24) at main.c(1040) [sender=3.0.3]" This happens with accented filenames. After having removed all accents, I do not get any error message. Still the reported problem occurs: rsync needs to copy all files after umounting and subsequent mounting of my pen. This is the behavior that I am wanting to control: rsync should copy only modified files. Before unmounting my pen, rsyinc copies only modified files; but after having umounted my pen and mounted it again, rsync copies all files. Any ideas? Are you sure it is really doing a copy? Rsync will attempt to update the file attributes and display the name if you use -v, but they won't quite match between fat and linux filesystems so it will do it again next time. It shouldn't take much time, though. -- Les Mikesell [EMAIL PROTECTED] -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Preventing rsync of copying always all files to my pen
On Sat, 2008-09-27 at 16:06 +0100, Paul Smith wrote: > On Sat, Sep 27, 2008 at 2:27 PM, Adalbert Prokop <[EMAIL PROTECTED]> wrote: > >> I have often to synchronize a directory from my computer to a pen > >> drive. To accomplish this, I use the following command: > >> > >> rsync -urva --delete /home/psmith/mydirectory/ > >> /media/MYPEN/mydirectory/ > > > > Which messages do you see and what mount options are used for mounting the > > FAT partition? I've tried your scenario and I get messages like this: > > > > rsync: chgrp "/media/USBDRIVE/." failed: Operation not permitted (1) > > > > Generally using -a on ext[23] -> FAT transfers is not a good idea, > > because -a implies -rlptgoD (according to man-pages) but FAT does not > > support user or group information, links or devices > > > > I suppose a simplier "rsync -rtv" should accomplish what you need. > > > > You might even want to try unison - it can synchronise two folders in both > > directions, copying newest files from one directory to its counterpart. > > Thanks, Adalbert. The messages that I get are: > > "rsync warning: some files vanished before they could be transferred > (code 24) at main.c(1040) [sender=3.0.3]" > > This happens with accented filenames. > > After having removed all accents, I do not get any error message. > > Still the reported problem occurs: rsync needs to copy all files after > umounting and subsequent mounting of my pen. This is the behavior that > I am wanting to control: rsync should copy only modified files. Before > unmounting my pen, rsyinc copies only modified files; but after having > umounted my pen and mounted it again, rsync copies all files. Any > ideas? Actually it does the same thing even if you don't unmount the pendrive (I just tried it). According to the rsync(1) BUGS section: "When transferring to FAT filesystems rsync may re-sync unmodified files. See the comments on the --modify-window option." poc -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Preventing rsync of copying always all files to my pen
On Sat, Sep 27, 2008 at 2:27 PM, Adalbert Prokop <[EMAIL PROTECTED]> wrote: >> I have often to synchronize a directory from my computer to a pen >> drive. To accomplish this, I use the following command: >> >> rsync -urva --delete /home/psmith/mydirectory/ >> /media/MYPEN/mydirectory/ > > Which messages do you see and what mount options are used for mounting the > FAT partition? I've tried your scenario and I get messages like this: > > rsync: chgrp "/media/USBDRIVE/." failed: Operation not permitted (1) > > Generally using -a on ext[23] -> FAT transfers is not a good idea, > because -a implies -rlptgoD (according to man-pages) but FAT does not > support user or group information, links or devices > > I suppose a simplier "rsync -rtv" should accomplish what you need. > > You might even want to try unison - it can synchronise two folders in both > directions, copying newest files from one directory to its counterpart. Thanks, Adalbert. The messages that I get are: "rsync warning: some files vanished before they could be transferred (code 24) at main.c(1040) [sender=3.0.3]" This happens with accented filenames. After having removed all accents, I do not get any error message. Still the reported problem occurs: rsync needs to copy all files after umounting and subsequent mounting of my pen. This is the behavior that I am wanting to control: rsync should copy only modified files. Before unmounting my pen, rsyinc copies only modified files; but after having umounted my pen and mounted it again, rsync copies all files. Any ideas? Paul -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Preventing rsync of copying always all files to my pen
Paul Smith wrote on Saturday 27 September 2008: Hi Paul! > I have often to synchronize a directory from my computer to a pen > drive. To accomplish this, I use the following command: > > rsync -urva --delete /home/psmith/mydirectory/ > /media/MYPEN/mydirectory/ Which messages do you see and what mount options are used for mounting the FAT partition? I've tried your scenario and I get messages like this: rsync: chgrp "/media/USBDRIVE/." failed: Operation not permitted (1) Generally using -a on ext[23] -> FAT transfers is not a good idea, because -a implies -rlptgoD (according to man-pages) but FAT does not support user or group information, links or devices I suppose a simplier "rsync -rtv" should accomplish what you need. You might even want to try unison - it can synchronise two folders in both directions, copying newest files from one directory to its counterpart. -- bye, Adalbert network packets travelling uphill (use a carrier pigeon) -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
