Hi Lawrence, please try again with --no-if-modified-since. That should revert to the old behavior of using two requests (HEAD and then GET).
If you still see issues, let us know. Some servers/proxies don't like the If-Modified-Since header. Regards, Tim On 10.02.19 08:11, Lawrence Wade wrote: > Hi Everyone, > > This might be a corroboration of this > http://lists.gnu.org/archive/html/bug-wget/2018-10/msg00049.html > and this > https://bugs.launchpad.net/ubuntu/+source/wget/+bug/1715481 > > I use wget to backup my cellphone running Palapa Web Server, and it > has worked well for me for years. Since upgrading to OpenSUSE Leap 15, > I have been having corrupted files. > > My method is > $ wget -r -N 192.168.2.100:8080 > and if the connection is interrupted for any reason, the next time I > call wget it would complete any incomplete files. And since Leap 15, I > have been getting gradually corrupted backups. I was tearing my hair > out looking at wgetrc and other things. > > With one long file that I knew was incomplete, I got a Not Modified - > omitting download, even though I knew the file sizes were different > between the server and wget's copy - though the wget man page > explicitly states that if the file sizes do not match, -N will trigger > a download. > > I tried on OpenSUSE 42.3 (wget 1.14) and the incomplete file triggered > a download, even though wgetrc was identical. > > Again, on Leap 15, I compiled 1.20.1 (latest), 1.17.1, and then > finally with 1.16.3 the behaviour went back to what I expected (and I > got my corrupted phone backups fixed). > > Was a bug possibly introduced in 1.17 with the support for > --if-modified-since? > > Version shipping with OpenSUSE Leap 15: > GNU Wget 1.19.5 built on linux-gnu. > +cares +digest +gpgme +https +ipv6 +iri +large-file +metalink +nls > +ntlm +opie +psl +ssl/openssl > > Last version I tried where "wget -r -N" works as expected: > GNU Wget 1.16.3 built on linux-gnu. > +digest +https +ipv6 -iri +large-file +nls +ntlm +opie +psl +ssl/gnutls > > I'm open to the possibility that there may be something else causing > this bug, I have not found many mentions of it, but then again it is > subtle. You get pretty confident when you just let wget do its thing, > so there may be a lot of incomplete files out there... :) > > Thanks so much for your help. I can provide any other info that would > be helpful. > > Lawrence Wade > Ottawa, Canada >
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