CHANGES

   1 $Id: CHANGES,v 1.44 2000/02/26 01:35:48 stelian Exp $
   2
   3 Changes between versions 0.4b14 and 0.4b15 (released ?????????????????)
   4 =======================================================================
   5
   6 1.      Added a prompt command in interactive restore mode. Thanks
   7         to Andreas Dilger <adilger@home.com> for the patch.
   8
   9 Changes between versions 0.4b13 and 0.4b14 (released February 10, 2000)
  10 =======================================================================
  11
  12 1.      Fixed a bug in dump which may have caused invalid deleted
  13         directories to be dumped out if they were deleted after the
  14         mapping pass. This could occure on active filesystem and lead
  15         to heap corruption (causing dump malfunction in many possible ways).
  16         Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
  17         bug and submitting the patch.
  18
  19 2.      Fixed the handling of the filesystem parameter in dump. A
  20         '/mnt/disk' parameter caused the disk contents to be dumped,
  21         but a '/mnt/disk/' parameter caused the mountpoint directory
  22         to be dumped (generally an empty directory).
  23
  24 3.      Improved the output of dump in order to tell which directory
  25         it is currently dumping (when dumping a subtree).
  26
  27 4.      Added the '-e' exclude inode option to dump. Thanks to
  28         Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
  29
  30 5.      Added a REPORTING-BUGS file in order to provide a guide
  31         on how to correctly report a bug in dump/restore.
  32
  33 6.      Fixed a restore problem when restoring a hard link to an inode
  34         having the immutable or append-only attribute set. Thanks to
  35         Ambrose Li <acli@mingpaoxpress.com> for submitting the patch.
  36
  37 7.      Fixed a compatibility problem between dumps made on little
  38         endian machines (the format was correct) and big endian
  39         machines (the format was incorrect). This fix break the
  40         compatibility with the older dumps made on big endian
  41         machines (sparc, m86k, ppc etc). For the first time in
  42         linux dump's history (I believe), the dumps made by *BSD,
  43         Linux/alpha, Linux/sparc and Linux/x86 are compatible,
  44         so interchangeable. Thanks to Rob Cermak
  45         <cermak@ahab.rutgers.edu> for submitting the bug and
  46         helping me test the fix.
  47
  48 8.      Fixed the way dump reports the remaining percent/time, if
  49         the number of blocks actually dumped exceeds the estimated
  50         number of blocks. Thanks to Jean-Paul van der Jagt
  51         <jeanpaul@dutepp0.et.tudelft.nl> for reporting the bug.
  52
  53 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
  54 ======================================================================
  55
  56 1.      Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
  57         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
  58
  59 2.      Removed the requirement to build the RPM as root from the
  60         spec file. Thanks to Christian Weisgerber
  61         <naddy@mips.rhein-neckar.de> for submitting this.
  62
  63 3.      Fixed a bug in dump related to the 'filetype' feature of ext2fs,
  64         causing dump to block when dumping really huge filesystems.
  65         Many thanks to Patrik Schindler <poc@pocnet.net> for
  66         helping me find this bug.
  67
  68 4.      Fixed the treatment for an interrupt signal when dump access
  69         the remote tape through RSH. Thanks to Christian Weisgerber
  70         <naddy@mips.rhein-neckar.de> for providing the patch.
  71
  72 5.      Fixed a bug which was causing dump/restore to display
  73         garbage characters instead of the remote host name.
  74
  75 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  76 =====================================================================
  77
  78 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  79         <kukuk@suse.de> for submitting the patch.
  80
  81 2.      Fix for the exit code when using the size estimate option of
  82         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  83         submitting the patch.
  84
  85 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  86         dump to fail on some systems. Thanks to Eric Jergensen
  87         <eric@dvns.com> for reporting the bug and submitting the patch.
  88
  89 4.      Handle more than 16 characters for the device names in dumpdates.
  90         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  91         tracking down the problem and proposing the solution.
  92
  93 5.      Fixed a bug in dump which prevented the creation of the
  94         dumpdates file when doing a 0-level dump without already
  95         having a dumpdates file. Thanks to Patrik Schindler
  96         <poc@pocnet.net> for reporting the bug.
  97
  98 6.      Changed the way dump 'S' flag reports the size estimate
  99         from number of blocks into bytes (making it compatible
 100         with the Solaris version, and simplifying things for
 101         amanda users). Thanks to Jason L Tibbitts III
 102         <tibbs@math.uh.edu> for reporting the bug.
 103
 104 7.      Fixed a compatibility problem in linux/alpha dump tape format.
 105         Now the linux/alpha dump are (again) compatible with the
 106         other dump formats. But this breaks compatibility with
 107         older dumps made on alpha. Thanks to Mike Tibor
 108         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
 109
 110 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
 111 ======================================================================
 112
 113 1.      Added a '--enable-kerberos' to configure.
 114
 115 2.      Added a 'S' option to dump which determines the amount of space
 116         that is needed to perform the dump without actually doing it, similar
 117         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
 118         <cermak@ahab.rutgers.edu>.
 119
 120 3.      Added a 'M' multi-volume option to dump and restore which enables
 121         dumping to multiple files (useful when dumping to an ext2
 122         partition to make several dump files in order to bypass the 2GB
 123         file size limitation). The 'f' argument is treated as a prefix and
 124         the output files will be named <prefix>001, <prefix>002 etc. With
 125         the 'M' flag, restore automatically selects the right file without
 126         asking to enter a new tape each time.
 127
 128 4.      Fixed a memory leak which was causing dump to grow very big
 129         (270MB when dumping a 10GB filesystem...). Thanks to Jason
 130         Fearon <jasonf@netrider.org.au> for reporting the bug.
 131
 132 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
 133 ======================================================================
 134
 135 1.      Make configure test if the system glob routines support
 136         extended syntax (ALTDIRFUNC). If not, use the internal glob
 137         routines instead of system ones. Thanks to Bernhard Sadlowski
 138         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
 139         and helping me resolve this and other minor libc5 compiling
 140         glitches.
 141
 142 2.      Fix a problem when dumping a ext2fs with the 'filetype'
 143         feature enabled. Thanks to Patrick J. LoPresti
 144         <patl@cag.lcs.mit.edu> for reporting the bug and to
 145         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
 146
 147 3.      Made the nodump flag work on directories. A directory which
 148         has the nodump flag gets never dumped, regardless of its
 149         contents.
 150
 151 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
 152         which allows dump on an active ext3 filesystem. However, this
 153         is a "quick and dirty" patch which enables backup of an ext3
 154         filesystem through the ext2 compatibility (by ignoring the
 155         NEEDS_RECOVERY bit). The journal file is not recognized and
 156         it is dumped (it should not).
 157
 158 5.      Test the superblock compatibility flags when dumping, in order
 159         to be sure that we know how to deal with specific features.
 160
 161 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
 162 ====================================================================
 163
 164 1.      Use lchown instead of chown, fixing a possible security problem
 165         when restoring symlinks (a malicious user could use this
 166         to deliberately corrupt the ownership of important system files).
 167         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 168         this and providing the patch.
 169
 170 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 171 ====================================================================
 172
 173 1.      Put dump sources under CVS, added Id tags in all files so
 174         one can use 'ident' on binary files.
 175
 176 2.      Added the dump/restore version in the usage text so one can
 177         easily verify the version he is using.
 178
 179 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 180         a va_start/va_end problem on linux-ppc (always call va_start
 181         va_end in pairs each time we use a vararg function).
 182
 183 4.      Added again the DT_* constants because old libc does not
 184         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 185         for submitting the bug report.
 186
 187 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 188         this should enable dumping big (huge) filesystems.
 189
 190 6.      Added the RSH environment variable in order to be able to
 191         use a rsh replacement like ssh when doing remote backups (and
 192         bypass the security limitations of rcmd). Now you can do remote
 193         backups without being root (or making dump setuid root).
 194
 195 7.      Modified again the way dumpdates works. For incremental dumps,
 196         we need to read dumpdates even if we are not using 'u' option.
 197         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 198         this should work.
 199
 200 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 201 ===================================================================
 202
 203 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 204         was not compiled in.
 205
 206 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 207         to them (fsetflags takes a char*, setflags an open fd!).
 208
 209 3.      (f)setflags is called only if the flags aren't empty. If the
 210         file is a special file, a warning is printed, because changing
 211         flags implies opening the device. Normally, a special file
 212         should not have any flag... (Debian bug #29775, patch provided
 213         by Abhijit Dasgupta <abhijit@ans.net>).
 214
 215 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 216         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 217
 218 5.      Changed the default behaviour to not create dumpdates
 219         unless 'u' option is specified. Removed the old "debian-patch"
 220         which provided the same thing. (Debian bug #38136, #33818).
 221
 222 6.      Removed all those dump*announce, since they were getting old...
 223
 224 7.      Added warning messages if dumpdates does not exist and
 225         when an inferior level dump does not exist (except for a level 0
 226         dump).
 227
 228 8.      Debugged the glob calls in interactive mode: restore used a
 229         dirent struct which was different from the /usr/include/dirent.h
 230         one (this used to work, is it a glibc2 change?), so none of the
 231         compat glob (which used /usr/include/dirent.h) or the system glob
 232         worked. Restore use now the system dirent (and the system
 233         DT_* constants), which are compatible with BSD ones.
 234
 235 9.      Added a configure flag (--with-dumpdatespath) to specify
 236         the location of dumpdates file. By default, it is
 237         /etc/dumpdates.
 238
 239 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 240         included the current date/version in man pages.
 241
 242 11.     Corrected the estimation of remaining time when
 243         the operator doesn't change the tapes quickly enough. This
 244         was an old bug, I thought I corrected it, and discovered
 245         that in fact it was corrected in two different places, so
 246         the results canceled each other...
 247
 248 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 249 ===================================================================
 250
 251 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 252
 253         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 254           isn't specified.
 255         - several fixes in the man pages.
 256         - update the default tape device to /dev/st0.
 257         - many updates for Linux Alpha (byte ordering, size_t etc).
 258         - buffer overruns.
 259         - use environment variable for TMPDIR (instead of /tmp).
 260         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 261         - workaround egcs bug (RedHat bugs #4281 and #2989).
 262         - wire $(OPT) throughout Makefile's.
 263
 264 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 265         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 266
 267 3.      Fix some compile warnings, prototype all functions.
 268
 269 4.      Use glibc err/glob instead of internal compatibility
 270         routines (only if available).
 271
 272 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 273         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 274
 275 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 276 ======================================================================
 277
 278 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 279         (mostly bug fixes, buffer overruns, dump has now an "automatic
 280         tape length calculation" flag, dump/restore can use kerberos now
 281         (this is NOT tested), use environment variables for TAPE and
 282         RMT etc.).
 283
 284 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 285
 286 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 287         tapes (files splited accros two tapes give "size changed" errors
 288         when comparing).
 289
 290 4.      Corrected the long standing bug when dumping multiple tapes.
 291         This works for me, needs further testing.
 292
 293 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 294 ====================================================================
 295
 296 1.      Dump now runs correctly on kernels 2.1.x
 297         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 298
 299 Changes between versions 0.4b2 and 0.4b3
 300 ========================================
 301
 302 1.      Use realpath() if available
 303
 304 2.      Report statistics
 305
 306 Changes between versions 0.4b1 and 0.4b2
 307 ========================================
 308
 309 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 310         the patch)
 311
 312 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 313
 314 3.      Fixed configure.in to correctly handle --enable-rmt
 315
 316 Changes between versions 0.3 and 0.4b1
 317 ======================================
 318
 319 1.      Integrated the changes from 4.4BSD-Lite2
 320
 321 2.      Integrated the patches from Debian and Red Hat
 322
 323 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 324
 325 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 326         should solve the endianness problem on SparcLinux.
 327
 328 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 329         distribution's one) to use autoconf
 330
 331 6.      Fixed a few minor bugs
 332
 333 Changes between versions 0.2e and 0.2f
 334 ======================================
 335
 336 1.      Added the creation of named pipes (fifos) in restore.
 337
 338 2.      Added the -N flag in the restore manual page.
 339
 340 3.      Added the file kernel.patch which contains the llseek() optimization
 341         patch for 1.2.x kernels.
 342
 343 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 344         not restored.
 345
 346 5.      Integrated some changes from FreeBSD 2.2.
 347
 348 6.      Added a call to ftruncate() after restoring each file to restore
 349         correctly files ending by a hole.
 350
 351 Changes between versions 0.2d and 0.2e
 352 ======================================
 353
 354 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 355         with owner = root (0) and group = root/wheel/whatever (0).
 356
 357 Changes between versions 0.2c and 0.2d
 358 ======================================
 359
 360 1.      Dump is now able to backup 2GB+ filesystems.
 361
 362 2.      Dump and restore can now be linked as static binaries.
 363
 364 Changes between versions 0.2b and 0.2c
 365 ======================================
 366
 367 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 368
 369 Changes between versions 0.2a and 0.2b
 370 ======================================
 371
 372 1.      Really fixed the bug that I should have corrected in 0.2a.
 373
 374 2.      Enabled optimization again.
 375
 376 Changes between versions 0.2 and 0.2a
 377 =====================================
 378
 379 1.      Disabled the optimization during compilation.
 380
 381 Changes between versions 0.1 and 0.2
 382 ====================================
 383
 384 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 385         the fs_type field (actually, I modified the file fstab.c to make it
 386         use the mntent functions).
 387
 388 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 389         made by dump should be readable by the BSD restore and backups made
 390         by the BSD dump should be readable by restore.  Unfortunately, this
 391         means that the dump format has changed between version 0.1 and version
 392         0.2 :-(
 393
 394 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 395         filesystems like the BSD version.
 396
 397 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 398         than 2 GB.
 399
 400 Changes between versions 0.0 and 0.1
 401 ====================================
 402
 403 1.      Now create links rdump and rrestore during the `make install' step.
 404
 405 2.      Linux port specific bugs added to the manual pages
 406
 407 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 408         incremental backups.
 409
 410 4.      Better ls-like format in restore in interactive mode.