CHANGES

   1 $Id: CHANGES,v 1.40 2000/02/04 20:57:31 stelian Exp $
   2
   3 Changes between versions 0.4b13 and 0.4b14 (released ????????????????)
   4 ======================================================================
   5
   6 1.      Fixed a bug in dump which may have caused invalid deleted
   7         directories to be dumped out if they were deleted after the
   8         mapping pass. This could occure on active filesystem and lead
   9         to heap corruption (causing dump malfunction in many possible ways).
  10         Thanks to Jan Sanislo <oystr@cs.washington.edu> for finding this
  11         bug and submitting the patch.
  12
  13 2.      Fixed the handling of the filesystem parameter in dump. A
  14         '/mnt/disk' parameter caused the disk contents to be dumped,
  15         but a '/mnt/disk/' parameter caused the mountpoint directory
  16         to be dumped (generally an empty directory).
  17
  18 3.      Improved the output of dump in order to tell which directory
  19         it is currently dumping (when dumping a subtree).
  20
  21 4.      Added the '-e' exclude inode option to dump. Thanks to
  22         Isaac Chuang <ike@isl.stanford.edu> for contributing with the patch.
  23
  24 5.      Added a REPORTING-BUGS file in order to provide a guide
  25         on how to correctly report a bug in dump/restore.
  26
  27 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
  28 ======================================================================
  29
  30 1.      Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
  31         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
  32
  33 2.      Removed the requirement to build the RPM as root from the
  34         spec file. Thanks to Christian Weisgerber
  35         <naddy@mips.rhein-neckar.de> for submitting this.
  36
  37 3.      Fixed a bug in dump related to the 'filetype' feature of ext2fs,
  38         causing dump to block when dumping really huge filesystems.
  39         Many thanks to Patrik Schindler <poc@pocnet.net> for
  40         helping me find this bug.
  41
  42 4.      Fixed the treatment for an interrupt signal when dump access
  43         the remote tape through RSH. Thanks to Christian Weisgerber
  44         <naddy@mips.rhein-neckar.de> for providing the patch.
  45
  46 5.      Fixed a bug which was causing dump/restore to display
  47         garbage characters instead of the remote host name.
  48
  49 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  50 =====================================================================
  51
  52 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  53         <kukuk@suse.de> for submitting the patch.
  54
  55 2.      Fix for the exit code when using the size estimate option of
  56         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  57         submitting the patch.
  58
  59 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  60         dump to fail on some systems. Thanks to Eric Jergensen
  61         <eric@dvns.com> for reporting the bug and submitting the patch.
  62
  63 4.      Handle more than 16 characters for the device names in dumpdates.
  64         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  65         tracking down the problem and proposing the solution.
  66
  67 5.      Fixed a bug in dump which prevented the creation of the
  68         dumpdates file when doing a 0-level dump without already
  69         having a dumpdates file. Thanks to Patrik Schindler
  70         <poc@pocnet.net> for reporting the bug.
  71
  72 6.      Changed the way dump 'S' flag reports the size estimate
  73         from number of blocks into bytes (making it compatible
  74         with the Solaris version, and simplifying things for
  75         amanda users). Thanks to Jason L Tibbitts III
  76         <tibbs@math.uh.edu> for reporting the bug.
  77
  78 7.      Fixed a compatibility problem in linux/alpha dump tape format.
  79         Now the linux/alpha dump are (again) compatible with the
  80         other dump formats. But this breaks compatibility with
  81         older dumps made on alpha. Thanks to Mike Tibor
  82         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
  83
  84 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
  85 ======================================================================
  86
  87 1.      Added a '--enable-kerberos' to configure.
  88
  89 2.      Added a 'S' option to dump which determines the amount of space
  90         that is needed to perform the dump without actually doing it, similar
  91         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  92         <cermak@ahab.rutgers.edu>.
  93
  94 3.      Added a 'M' multi-volume option to dump and restore which enables
  95         dumping to multiple files (useful when dumping to an ext2
  96         partition to make several dump files in order to bypass the 2GB
  97         file size limitation). The 'f' argument is treated as a prefix and
  98         the output files will be named <prefix>001, <prefix>002 etc. With
  99         the 'M' flag, restore automatically selects the right file without
 100         asking to enter a new tape each time.
 101
 102 4.      Fixed a memory leak which was causing dump to grow very big
 103         (270MB when dumping a 10GB filesystem...). Thanks to Jason
 104         Fearon <jasonf@netrider.org.au> for reporting the bug.
 105
 106 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
 107 ======================================================================
 108
 109 1.      Make configure test if the system glob routines support
 110         extended syntax (ALTDIRFUNC). If not, use the internal glob
 111         routines instead of system ones. Thanks to Bernhard Sadlowski
 112         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
 113         and helping me resolve this and other minor libc5 compiling
 114         glitches.
 115
 116 2.      Fix a problem when dumping a ext2fs with the 'filetype'
 117         feature enabled. Thanks to Patrick J. LoPresti
 118         <patl@cag.lcs.mit.edu> for reporting the bug and to
 119         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
 120
 121 3.      Made the nodump flag work on directories. A directory which
 122         has the nodump flag gets never dumped, regardless of its
 123         contents.
 124
 125 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
 126         which allows dump on an active ext3 filesystem. However, this
 127         is a "quick and dirty" patch which enables backup of an ext3
 128         filesystem through the ext2 compatibility (by ignoring the
 129         NEEDS_RECOVERY bit). The journal file is not recognized and
 130         it is dumped (it should not).
 131
 132 5.      Test the superblock compatibility flags when dumping, in order
 133         to be sure that we know how to deal with specific features.
 134
 135 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
 136 ====================================================================
 137
 138 1.      Use lchown instead of chown, fixing a possible security problem
 139         when restoring symlinks (a malicious user could use this
 140         to deliberately corrupt the ownership of important system files).
 141         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 142         this and providing the patch.
 143
 144 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 145 ====================================================================
 146
 147 1.      Put dump sources under CVS, added Id tags in all files so
 148         one can use 'ident' on binary files.
 149
 150 2.      Added the dump/restore version in the usage text so one can
 151         easily verify the version he is using.
 152
 153 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 154         a va_start/va_end problem on linux-ppc (always call va_start
 155         va_end in pairs each time we use a vararg function).
 156
 157 4.      Added again the DT_* constants because old libc does not
 158         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 159         for submitting the bug report.
 160
 161 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 162         this should enable dumping big (huge) filesystems.
 163
 164 6.      Added the RSH environment variable in order to be able to
 165         use a rsh replacement like ssh when doing remote backups (and
 166         bypass the security limitations of rcmd). Now you can do remote
 167         backups without being root (or making dump setuid root).
 168
 169 7.      Modified again the way dumpdates works. For incremental dumps,
 170         we need to read dumpdates even if we are not using 'u' option.
 171         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 172         this should work.
 173
 174 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 175 ===================================================================
 176
 177 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 178         was not compiled in.
 179
 180 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 181         to them (fsetflags takes a char*, setflags an open fd!).
 182
 183 3.      (f)setflags is called only if the flags aren't empty. If the
 184         file is a special file, a warning is printed, because changing
 185         flags implies opening the device. Normally, a special file
 186         should not have any flag... (Debian bug #29775, patch provided
 187         by Abhijit Dasgupta <abhijit@ans.net>).
 188
 189 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 190         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 191
 192 5.      Changed the default behaviour to not create dumpdates
 193         unless 'u' option is specified. Removed the old "debian-patch"
 194         which provided the same thing. (Debian bug #38136, #33818).
 195
 196 6.      Removed all those dump*announce, since they were getting old...
 197
 198 7.      Added warning messages if dumpdates does not exist and
 199         when an inferior level dump does not exist (except for a level 0
 200         dump).
 201
 202 8.      Debugged the glob calls in interactive mode: restore used a
 203         dirent struct which was different from the /usr/include/dirent.h
 204         one (this used to work, is it a glibc2 change?), so none of the
 205         compat glob (which used /usr/include/dirent.h) or the system glob
 206         worked. Restore use now the system dirent (and the system
 207         DT_* constants), which are compatible with BSD ones.
 208
 209 9.      Added a configure flag (--with-dumpdatespath) to specify
 210         the location of dumpdates file. By default, it is
 211         /etc/dumpdates.
 212
 213 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 214         included the current date/version in man pages.
 215
 216 11.     Corrected the estimation of remaining time when
 217         the operator doesn't change the tapes quickly enough. This
 218         was an old bug, I thought I corrected it, and discovered
 219         that in fact it was corrected in two different places, so
 220         the results canceled each other...
 221
 222 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 223 ===================================================================
 224
 225 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 226
 227         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 228           isn't specified.
 229         - several fixes in the man pages.
 230         - update the default tape device to /dev/st0.
 231         - many updates for Linux Alpha (byte ordering, size_t etc).
 232         - buffer overruns.
 233         - use environment variable for TMPDIR (instead of /tmp).
 234         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 235         - workaround egcs bug (RedHat bugs #4281 and #2989).
 236         - wire $(OPT) throughout Makefile's.
 237
 238 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 239         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 240
 241 3.      Fix some compile warnings, prototype all functions.
 242
 243 4.      Use glibc err/glob instead of internal compatibility
 244         routines (only if available).
 245
 246 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 247         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 248
 249 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 250 ======================================================================
 251
 252 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 253         (mostly bug fixes, buffer overruns, dump has now an "automatic
 254         tape length calculation" flag, dump/restore can use kerberos now
 255         (this is NOT tested), use environment variables for TAPE and
 256         RMT etc.).
 257
 258 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 259
 260 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 261         tapes (files splited accros two tapes give "size changed" errors
 262         when comparing).
 263
 264 4.      Corrected the long standing bug when dumping multiple tapes.
 265         This works for me, needs further testing.
 266
 267 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 268 ====================================================================
 269
 270 1.      Dump now runs correctly on kernels 2.1.x
 271         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 272
 273 Changes between versions 0.4b2 and 0.4b3
 274 ========================================
 275
 276 1.      Use realpath() if available
 277
 278 2.      Report statistics
 279
 280 Changes between versions 0.4b1 and 0.4b2
 281 ========================================
 282
 283 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 284         the patch)
 285
 286 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 287
 288 3.      Fixed configure.in to correctly handle --enable-rmt
 289
 290 Changes between versions 0.3 and 0.4b1
 291 ======================================
 292
 293 1.      Integrated the changes from 4.4BSD-Lite2
 294
 295 2.      Integrated the patches from Debian and Red Hat
 296
 297 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 298
 299 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 300         should solve the endianness problem on SparcLinux.
 301
 302 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 303         distribution's one) to use autoconf
 304
 305 6.      Fixed a few minor bugs
 306
 307 Changes between versions 0.2e and 0.2f
 308 ======================================
 309
 310 1.      Added the creation of named pipes (fifos) in restore.
 311
 312 2.      Added the -N flag in the restore manual page.
 313
 314 3.      Added the file kernel.patch which contains the llseek() optimization
 315         patch for 1.2.x kernels.
 316
 317 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 318         not restored.
 319
 320 5.      Integrated some changes from FreeBSD 2.2.
 321
 322 6.      Added a call to ftruncate() after restoring each file to restore
 323         correctly files ending by a hole.
 324
 325 Changes between versions 0.2d and 0.2e
 326 ======================================
 327
 328 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 329         with owner = root (0) and group = root/wheel/whatever (0).
 330
 331 Changes between versions 0.2c and 0.2d
 332 ======================================
 333
 334 1.      Dump is now able to backup 2GB+ filesystems.
 335
 336 2.      Dump and restore can now be linked as static binaries.
 337
 338 Changes between versions 0.2b and 0.2c
 339 ======================================
 340
 341 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 342
 343 Changes between versions 0.2a and 0.2b
 344 ======================================
 345
 346 1.      Really fixed the bug that I should have corrected in 0.2a.
 347
 348 2.      Enabled optimization again.
 349
 350 Changes between versions 0.2 and 0.2a
 351 =====================================
 352
 353 1.      Disabled the optimization during compilation.
 354
 355 Changes between versions 0.1 and 0.2
 356 ====================================
 357
 358 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 359         the fs_type field (actually, I modified the file fstab.c to make it
 360         use the mntent functions).
 361
 362 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 363         made by dump should be readable by the BSD restore and backups made
 364         by the BSD dump should be readable by restore.  Unfortunately, this
 365         means that the dump format has changed between version 0.1 and version
 366         0.2 :-(
 367
 368 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 369         filesystems like the BSD version.
 370
 371 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 372         than 2 GB.
 373
 374 Changes between versions 0.0 and 0.1
 375 ====================================
 376
 377 1.      Now create links rdump and rrestore during the `make install' step.
 378
 379 2.      Linux port specific bugs added to the manual pages
 380
 381 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 382         incremental backups.
 383
 384 4.      Better ls-like format in restore in interactive mode.