I've always been using SMBv1 for mounting shared folders exposed by the AS/400. Recently, the AS/400 V7R3 has enabled SMBv2 but I haven't been able to effectively use a shared folder:

  • I can browse the filesystem hierarchy
  • I can create directories
  • I can delete directories and files
  • I cannot create files (No such file or directory)
  • I cannot write to files (No such file or directory)
  • I cannot read files (garbled output)

Here's my mount command:

mount -t cifs -o vers=2.0,username=MYUSER // /mnt/as400

More info:

  • Windows clients report no problems since switching to SMBv2.
  • Mounting with -o vers=2.1 fails with mount error(5): Input/output error.
  • Specifying -o vers=1.0 makes everything work nicely.
  • Adding the following options did not do any good: iocharset=utf8,file_mode=0770,dir_mode=0770,nounix,uid=1000,gid=1000
  • Here's a portion of garbled output that appears when trying to diplay any file:

    SunMonTueWedThuFriSatSundayMondayTuesdayWednesdayThursdayFridaySaturdayJanFebMarAprMayJunJulAugSepOctNovDecJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberAMPM%a %d %b %Y %r %Z%m/%d/%Y%r%I:%M:%S %pSunMonTueWedThuFriSatSundayMondayTuesdayWednesdayThursdayFridaySaturdayJanFebMarAprMayJunJulAugSepOctNovDecJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberAMPM%a %d %b %Y %r %Z%m/%d/%Y%r%I:%M:%S %p:▒0%a %b %e %H:%M:%S %Z %Y%a %b %e %H:%M:%S %Z %YUTF-8JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberJanFebMarAprMayJunJulAugSepOctNovDecJanhttp://www.gnu.org/software/libc/bug-glibc-locales@gnu.orgAmerican EnglishUnited States1.02000-06-24i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012i18n:2012UTF-8


Am I missing some obvious way to make Ubuntu correctly mount SMBv2 folders shared by the AS/400 or are the respective implementations somehow incompatible?

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