CHANGES

   1 $Id: CHANGES,v 1.39 2000/02/04 20:22:21 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 Changes between versions 0.4b12 and 0.4b13 (released January 21, 2000)
  25 ======================================================================
  26
  27 1.      Small Y2K fix in the man pages :). Thanks to Bernhard Sadlowski
  28         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug.
  29
  30 2.      Removed the requirement to build the RPM as root from the
  31         spec file. Thanks to Christian Weisgerber
  32         <naddy@mips.rhein-neckar.de> for submitting this.
  33
  34 3.      Fixed a bug in dump related to the 'filetype' feature of ext2fs,
  35         causing dump to block when dumping really huge filesystems.
  36         Many thanks to Patrik Schindler <poc@pocnet.net> for
  37         helping me find this bug.
  38
  39 4.      Fixed the treatment for an interrupt signal when dump access
  40         the remote tape through RSH. Thanks to Christian Weisgerber
  41         <naddy@mips.rhein-neckar.de> for providing the patch.
  42
  43 5.      Fixed a bug which was causing dump/restore to display
  44         garbage characters instead of the remote host name.
  45
  46 Changes between versions 0.4b11 and 0.4b12 (released January 8, 2000)
  47 =====================================================================
  48
  49 1.      Small fix in the dump man page. Thanks to Thorsten Kukuk
  50         <kukuk@suse.de> for submitting the patch.
  51
  52 2.      Fix for the exit code when using the size estimate option of
  53         dump. Thanks to Matti Taskinen <mkt@rni.helsinki.fi> for
  54         submitting the patch.
  55
  56 3.      Handle EINTR in atomical reads/writes in dump, which was causing
  57         dump to fail on some systems. Thanks to Eric Jergensen
  58         <eric@dvns.com> for reporting the bug and submitting the patch.
  59
  60 4.      Handle more than 16 characters for the device names in dumpdates.
  61         (up to 255 now). Thanks to Rainer Clasen <bj@ncc.cicely.de> for
  62         tracking down the problem and proposing the solution.
  63
  64 5.      Fixed a bug in dump which prevented the creation of the
  65         dumpdates file when doing a 0-level dump without already
  66         having a dumpdates file. Thanks to Patrik Schindler
  67         <poc@pocnet.net> for reporting the bug.
  68
  69 6.      Changed the way dump 'S' flag reports the size estimate
  70         from number of blocks into bytes (making it compatible
  71         with the Solaris version, and simplifying things for
  72         amanda users). Thanks to Jason L Tibbitts III
  73         <tibbs@math.uh.edu> for reporting the bug.
  74
  75 7.      Fixed a compatibility problem in linux/alpha dump tape format.
  76         Now the linux/alpha dump are (again) compatible with the
  77         other dump formats. But this breaks compatibility with
  78         older dumps made on alpha. Thanks to Mike Tibor
  79         <tibor@lib.uaa.alaska.edu> for helping me in finding this bug.
  80
  81 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
  82 ======================================================================
  83
  84 1.      Added a '--enable-kerberos' to configure.
  85
  86 2.      Added a 'S' option to dump which determines the amount of space
  87         that is needed to perform the dump without actually doing it, similar
  88         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  89         <cermak@ahab.rutgers.edu>.
  90
  91 3.      Added a 'M' multi-volume option to dump and restore which enables
  92         dumping to multiple files (useful when dumping to an ext2
  93         partition to make several dump files in order to bypass the 2GB
  94         file size limitation). The 'f' argument is treated as a prefix and
  95         the output files will be named <prefix>001, <prefix>002 etc. With
  96         the 'M' flag, restore automatically selects the right file without
  97         asking to enter a new tape each time.
  98
  99 4.      Fixed a memory leak which was causing dump to grow very big
 100         (270MB when dumping a 10GB filesystem...). Thanks to Jason
 101         Fearon <jasonf@netrider.org.au> for reporting the bug.
 102
 103 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
 104 ======================================================================
 105
 106 1.      Make configure test if the system glob routines support
 107         extended syntax (ALTDIRFUNC). If not, use the internal glob
 108         routines instead of system ones. Thanks to Bernhard Sadlowski
 109         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
 110         and helping me resolve this and other minor libc5 compiling
 111         glitches.
 112
 113 2.      Fix a problem when dumping a ext2fs with the 'filetype'
 114         feature enabled. Thanks to Patrick J. LoPresti
 115         <patl@cag.lcs.mit.edu> for reporting the bug and to
 116         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
 117
 118 3.      Made the nodump flag work on directories. A directory which
 119         has the nodump flag gets never dumped, regardless of its
 120         contents.
 121
 122 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
 123         which allows dump on an active ext3 filesystem. However, this
 124         is a "quick and dirty" patch which enables backup of an ext3
 125         filesystem through the ext2 compatibility (by ignoring the
 126         NEEDS_RECOVERY bit). The journal file is not recognized and
 127         it is dumped (it should not).
 128
 129 5.      Test the superblock compatibility flags when dumping, in order
 130         to be sure that we know how to deal with specific features.
 131
 132 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
 133 ====================================================================
 134
 135 1.      Use lchown instead of chown, fixing a possible security problem
 136         when restoring symlinks (a malicious user could use this
 137         to deliberately corrupt the ownership of important system files).
 138         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
 139         this and providing the patch.
 140
 141 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
 142 ====================================================================
 143
 144 1.      Put dump sources under CVS, added Id tags in all files so
 145         one can use 'ident' on binary files.
 146
 147 2.      Added the dump/restore version in the usage text so one can
 148         easily verify the version he is using.
 149
 150 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
 151         a va_start/va_end problem on linux-ppc (always call va_start
 152         va_end in pairs each time we use a vararg function).
 153
 154 4.      Added again the DT_* constants because old libc does not
 155         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
 156         for submitting the bug report.
 157
 158 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
 159         this should enable dumping big (huge) filesystems.
 160
 161 6.      Added the RSH environment variable in order to be able to
 162         use a rsh replacement like ssh when doing remote backups (and
 163         bypass the security limitations of rcmd). Now you can do remote
 164         backups without being root (or making dump setuid root).
 165
 166 7.      Modified again the way dumpdates works. For incremental dumps,
 167         we need to read dumpdates even if we are not using 'u' option.
 168         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
 169         this should work.
 170
 171 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
 172 ===================================================================
 173
 174 1.      Removed the 'k' flag from the restore 'about' text if kerberos
 175         was not compiled in.
 176
 177 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 178         to them (fsetflags takes a char*, setflags an open fd!).
 179
 180 3.      (f)setflags is called only if the flags aren't empty. If the
 181         file is a special file, a warning is printed, because changing
 182         flags implies opening the device. Normally, a special file
 183         should not have any flag... (Debian bug #29775, patch provided
 184         by Abhijit Dasgupta <abhijit@ans.net>).
 185
 186 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 187         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 188
 189 5.      Changed the default behaviour to not create dumpdates
 190         unless 'u' option is specified. Removed the old "debian-patch"
 191         which provided the same thing. (Debian bug #38136, #33818).
 192
 193 6.      Removed all those dump*announce, since they were getting old...
 194
 195 7.      Added warning messages if dumpdates does not exist and
 196         when an inferior level dump does not exist (except for a level 0
 197         dump).
 198
 199 8.      Debugged the glob calls in interactive mode: restore used a
 200         dirent struct which was different from the /usr/include/dirent.h
 201         one (this used to work, is it a glibc2 change?), so none of the
 202         compat glob (which used /usr/include/dirent.h) or the system glob
 203         worked. Restore use now the system dirent (and the system
 204         DT_* constants), which are compatible with BSD ones.
 205
 206 9.      Added a configure flag (--with-dumpdatespath) to specify
 207         the location of dumpdates file. By default, it is
 208         /etc/dumpdates.
 209
 210 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 211         included the current date/version in man pages.
 212
 213 11.     Corrected the estimation of remaining time when
 214         the operator doesn't change the tapes quickly enough. This
 215         was an old bug, I thought I corrected it, and discovered
 216         that in fact it was corrected in two different places, so
 217         the results canceled each other...
 218
 219 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 220 ===================================================================
 221
 222 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 223
 224         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 225           isn't specified.
 226         - several fixes in the man pages.
 227         - update the default tape device to /dev/st0.
 228         - many updates for Linux Alpha (byte ordering, size_t etc).
 229         - buffer overruns.
 230         - use environment variable for TMPDIR (instead of /tmp).
 231         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 232         - workaround egcs bug (RedHat bugs #4281 and #2989).
 233         - wire $(OPT) throughout Makefile's.
 234
 235 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 236         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 237
 238 3.      Fix some compile warnings, prototype all functions.
 239
 240 4.      Use glibc err/glob instead of internal compatibility
 241         routines (only if available).
 242
 243 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 244         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 245
 246 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 247 ======================================================================
 248
 249 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 250         (mostly bug fixes, buffer overruns, dump has now an "automatic
 251         tape length calculation" flag, dump/restore can use kerberos now
 252         (this is NOT tested), use environment variables for TAPE and
 253         RMT etc.).
 254
 255 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 256
 257 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 258         tapes (files splited accros two tapes give "size changed" errors
 259         when comparing).
 260
 261 4.      Corrected the long standing bug when dumping multiple tapes.
 262         This works for me, needs further testing.
 263
 264 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 265 ====================================================================
 266
 267 1.      Dump now runs correctly on kernels 2.1.x
 268         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 269
 270 Changes between versions 0.4b2 and 0.4b3
 271 ========================================
 272
 273 1.      Use realpath() if available
 274
 275 2.      Report statistics
 276
 277 Changes between versions 0.4b1 and 0.4b2
 278 ========================================
 279
 280 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 281         the patch)
 282
 283 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 284
 285 3.      Fixed configure.in to correctly handle --enable-rmt
 286
 287 Changes between versions 0.3 and 0.4b1
 288 ======================================
 289
 290 1.      Integrated the changes from 4.4BSD-Lite2
 291
 292 2.      Integrated the patches from Debian and Red Hat
 293
 294 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 295
 296 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 297         should solve the endianness problem on SparcLinux.
 298
 299 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 300         distribution's one) to use autoconf
 301
 302 6.      Fixed a few minor bugs
 303
 304 Changes between versions 0.2e and 0.2f
 305 ======================================
 306
 307 1.      Added the creation of named pipes (fifos) in restore.
 308
 309 2.      Added the -N flag in the restore manual page.
 310
 311 3.      Added the file kernel.patch which contains the llseek() optimization
 312         patch for 1.2.x kernels.
 313
 314 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 315         not restored.
 316
 317 5.      Integrated some changes from FreeBSD 2.2.
 318
 319 6.      Added a call to ftruncate() after restoring each file to restore
 320         correctly files ending by a hole.
 321
 322 Changes between versions 0.2d and 0.2e
 323 ======================================
 324
 325 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 326         with owner = root (0) and group = root/wheel/whatever (0).
 327
 328 Changes between versions 0.2c and 0.2d
 329 ======================================
 330
 331 1.      Dump is now able to backup 2GB+ filesystems.
 332
 333 2.      Dump and restore can now be linked as static binaries.
 334
 335 Changes between versions 0.2b and 0.2c
 336 ======================================
 337
 338 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 339
 340 Changes between versions 0.2a and 0.2b
 341 ======================================
 342
 343 1.      Really fixed the bug that I should have corrected in 0.2a.
 344
 345 2.      Enabled optimization again.
 346
 347 Changes between versions 0.2 and 0.2a
 348 =====================================
 349
 350 1.      Disabled the optimization during compilation.
 351
 352 Changes between versions 0.1 and 0.2
 353 ====================================
 354
 355 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 356         the fs_type field (actually, I modified the file fstab.c to make it
 357         use the mntent functions).
 358
 359 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 360         made by dump should be readable by the BSD restore and backups made
 361         by the BSD dump should be readable by restore.  Unfortunately, this
 362         means that the dump format has changed between version 0.1 and version
 363         0.2 :-(
 364
 365 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 366         filesystems like the BSD version.
 367
 368 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 369         than 2 GB.
 370
 371 Changes between versions 0.0 and 0.1
 372 ====================================
 373
 374 1.      Now create links rdump and rrestore during the `make install' step.
 375
 376 2.      Linux port specific bugs added to the manual pages
 377
 378 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 379         incremental backups.
 380
 381 4.      Better ls-like format in restore in interactive mode.