CHANGES

   1 $Id: CHANGES,v 1.24 1999/12/05 18:23:41 tiniou Exp $
   2
   3 Changes between versions 0.4b10 and 0.4b11 (released December 5, 1999)
   4 ======================================================================
   5
   6 1.      Added a '--enable-kerberos' to configure.
   7
   8 2.      Added a 'S' option to dump which determines the amount of space
   9         that is needed to perform the dump without actually doint it, similar
  10         to the Sun's ufsdump 'S' option. Patch contributed by Rob Cermak
  11         <cermak@ahab.rutgers.edu>.
  12
  13 3.      Added a 'M' multi-volume option to dump and restore which enables
  14         dumping to multiple files (useful when dumping to an ext2
  15         partition to make several dump files in order to bypass the 2GB
  16         file size limitation). The 'f' argument is treated as a prefix and
  17         the output files will be named <prefix>001, <prefix>002 etc. With
  18         the 'M' flag, restore automatically selects the right file without
  19         asking to enter a new tape each time.
  20
  21 4.      Fixed a memory leak which was causing dump to grow very big
  22         (270MB when dumping a 10GB filesystem...). Thanks to Zaphod
  23         Beeblebrox <zaphod@netrider.org.au> for reporting the bug.
  24
  25 Changes between versions 0.4b9 and 0.4b10 (released November 21, 1999)
  26 ======================================================================
  27
  28 1.      Make configure test if the system glob routines support
  29         extended syntax (ALTDIRFUNC). If not, use the internal glob
  30         routines instead of system ones. Thanks to Bernhard Sadlowski
  31         <sadlowsk@Mathematik.Uni-Bielefeld.DE> for reporting the bug
  32         and helping me resolve this and other minor libc5 compiling
  33         glitches.
  34
  35 2.      Fix a problem when dumping a ext2fs with the 'filetype'
  36         feature enabled. Thanks to Patrick J. LoPresti
  37         <patl@cag.lcs.mit.edu> for reporting the bug and to
  38         Theodore Y. Ts'o <tytso@mit.edu> for providing the patch.
  39
  40 3.      Made the nodump flag work on directories. A directory which
  41         has the nodump flag gets never dumped, regardless of its
  42         contents.
  43
  44 4.      Integrate a patch from Jeremy Fitzhardinge <jeremy@goop.org>
  45         which allows dump on an active ext3 filesystem. However, this
  46         is a "quick and dirty" patch which enables backup of an ext3
  47         filesystem through the ext2 compatibility (by ignoring the
  48         NEEDS_RECOVERY bit). The journal file is not recognized and
  49         it is dumped (it should not).
  50
  51 5.      Test the superblock compatibility flags when dumping, in order
  52         to be sure that we know how to deal with specific features.
  53
  54 Changes between versions 0.4b8 and 0.4b9 (released November 5, 1999)
  55 ====================================================================
  56
  57 1.      Use lchown instead of chown, fixing a possible security problem
  58         when restoring symlinks (a malicious user could use this
  59         to deliberately corrupt the ownership of important system files).
  60         Thanks to Chris Siebenmann <cks@utcc.utoronto.ca> for detecting
  61         this and providing the patch.
  62
  63 Changes between versions 0.4b7 and 0.4b8 (released November 3, 1999)
  64 ====================================================================
  65
  66 1.      Put dump sources under CVS, added Id tags in all files so
  67         one can use 'ident' on binary files.
  68
  69 2.      Added the dump/restore version in the usage text so one can
  70         easily verify the version he is using.
  71
  72 3.      Small patch from Nuno Oliveira <nuno@eq.uc.pt> which fixes
  73         a va_start/va_end problem on linux-ppc (always call va_start
  74         va_end in pairs each time we use a vararg function).
  75
  76 4.      Added again the DT_* constants because old libc does not
  77         contain them :(. Thanks to Eric Maisonobe <virnet@nat.fr>
  78         for submitting the bug report.
  79
  80 5.      Use ext2fs_llseek instead of llseek. With recent e2fsprogs
  81         this should enable dumping big (huge) filesystems.
  82
  83 6.      Added the RSH environment variable in order to be able to
  84         use a rsh replacement like ssh when doing remote backups (and
  85         bypass the security limitations of rcmd). Now you can do remote
  86         backups without being root (or making dump setuid root).
  87
  88 7.      Modified again the way dumpdates works. For incremental dumps,
  89         we need to read dumpdates even if we are not using 'u' option.
  90         Thanks to Bdale Garbee <bdale@gag.com> for his ideas on how
  91         this should work.
  92
  93 Changes between versions 0.4b6 and 0.4b7 (released October 8, 1999)
  94 ===================================================================
  95
  96 1.      Removed the 'k' flag from the restore 'about' text if kerberos
  97         was not compiled in.
  98
  99 2.      Prototyped (f)setflags from e2fsprogs and corrected the calls
 100         to them (fsetflags takes a char*, setflags an open fd!).
 101
 102 3.      (f)setflags is called only if the flags aren't empty. If the
 103         file is a special file, a warning is printed, because changing
 104         flags implies opening the device. Normally, a special file
 105         should not have any flag... (Debian bug #29775, patch provided
 106         by Abhijit Dasgupta <abhijit@ans.net>).
 107
 108 4.      Made possible to dump a file system not mentioned in /etc/fstab.
 109         (Debian bug #11904, patch provided by Eirik Fuller <eirik@netcom.com>).
 110
 111 5.      Changed the default behaviour to not create dumpdates
 112         unless 'u' option is specified. Removed the old "debian-patch"
 113         which provided the same thing. (Debian bug #38136, #33818).
 114
 115 6.      Removed all those dump*announce, since they were getting old...
 116
 117 7.      Added warning messages if dumpdates does not exist and
 118         when an inferior level dump does not exist (except for a level 0
 119         dump).
 120
 121 8.      Debugged the glob calls in interactive mode: restore used a
 122         dirent struct which was different from the /usr/include/dirent.h
 123         one (this used to work, is it a glibc2 change?), so none of the
 124         compat glob (which used /usr/include/dirent.h) or the system glob
 125         worked. Restore use now the system dirent (and the system
 126         DT_* constants), which are compatible with BSD ones.
 127
 128 9.      Added a configure flag (--with-dumpdatespath) to specify
 129         the location of dumpdates file. By default, it is
 130         /etc/dumpdates.
 131
 132 10.     Added the "AUTHOR" and "AVAILABILITY" sections and
 133         included the current date/version in man pages.
 134
 135 11.     Corrected the estimation of remaining time when
 136         the operator doesn't change the tapes quickly enough. This
 137         was an old bug, I thought I corrected it, and discovered
 138         that in fact it was corrected in two different places, so
 139         the results canceled each other...
 140
 141 Changes between versions 0.4b5 and 0.4b6 (released October 1, 1999)
 142 ===================================================================
 143
 144 1.      Integrated multiple patches from RedHat, Debian and SuSE:
 145
 146         - tweak dump/itime.c to not try to read dumpdates if the 'u' option
 147           isn't specified.
 148         - several fixes in the man pages.
 149         - update the default tape device to /dev/st0.
 150         - many updates for Linux Alpha (byte ordering, size_t etc).
 151         - buffer overruns.
 152         - use environment variable for TMPDIR (instead of /tmp).
 153         - use sigjmp_buf instead of jmp_buf (RedHat bug #3260).
 154         - workaround egcs bug (RedHat bugs #4281 and #2989).
 155         - wire $(OPT) throughout Makefile's.
 156
 157 2.      Upgrade the dump revision to 1, making possible to dump filesystems
 158         made with e2fsprogs-1.15 or newer. Nothing seems to break...
 159
 160 3.      Fix some compile warnings, prototype all functions.
 161
 162 4.      Use glibc err/glob instead of internal compatibility
 163         routines (only if available).
 164
 165 5.      Fix a compile error on Linux 2.2.7 / libc5 (5.4.44) (patch provided
 166         by Bernhard Sadlowski <sadlowsk@mathematik.uni-bielefeld.de>).
 167
 168 Changes between versions 0.4b4 and 0.4b5 (released September 22, 1999)
 169 ======================================================================
 170
 171 1.      Integrated the changes from FreeBSD-3.1-RELEASE
 172         (mostly bug fixes, buffer overruns, dump has now an "automatic
 173         tape length calculation" flag, dump/restore can use kerberos now
 174         (this is NOT tested), use environment variables for TAPE and
 175         RMT etc.).
 176
 177 2.      Integrated three RedHat patches ("glibc", "kernel" and "bread" patches)
 178
 179 3.      Corrected a bug in restore when using 'C' option with multi-volumes
 180         tapes (files splited accros two tapes give "size changed" errors
 181         when comparing).
 182
 183 4.      Corrected the long standing bug when dumping multiple tapes.
 184         This works for me, needs further testing.
 185
 186 Changes between versions 0.4b3 and 0.4b4 (released January 17, 1997)
 187 ====================================================================
 188
 189 1.      Dump now runs correctly on kernels 2.1.x
 190         Fix made by Gerald Peters <gapeters@worldnet.att.net>
 191
 192 Changes between versions 0.4b2 and 0.4b3
 193 ========================================
 194
 195 1.      Use realpath() if available
 196
 197 2.      Report statistics
 198
 199 Changes between versions 0.4b1 and 0.4b2
 200 ========================================
 201
 202 1.      Fixed the bug fix from Greg Lutz (I had made a mistake when integrating
 203         the patch)
 204
 205 2.      Fixed restore to make it able to read FreeBSD 2.x dumps again
 206
 207 3.      Fixed configure.in to correctly handle --enable-rmt
 208
 209 Changes between versions 0.3 and 0.4b1
 210 ======================================
 211
 212 1.      Integrated the changes from 4.4BSD-Lite2
 213
 214 2.      Integrated the patches from Debian and Red Hat
 215
 216 3.      Portability changes: use the __u32, __u16, __s32, and __s16 types
 217
 218 4.      Changed dump to use the Ext2fs library to get block addresses.  This
 219         should solve the endianness problem on SparcLinux.
 220
 221 5.      Created a configure.in file (shamelessly stolen from the e2fsprogs
 222         distribution's one) to use autoconf
 223
 224 6.      Fixed a few minor bugs
 225
 226 Changes between versions 0.2e and 0.2f
 227 ======================================
 228
 229 1.      Added the creation of named pipes (fifos) in restore.
 230
 231 2.      Added the -N flag in the restore manual page.
 232
 233 3.      Added the file kernel.patch which contains the llseek() optimization
 234         patch for 1.2.x kernels.
 235
 236 4.      Fixed a bug in the restoration of symbolic links: owner and group were
 237         not restored.
 238
 239 5.      Integrated some changes from FreeBSD 2.2.
 240
 241 6.      Added a call to ftruncate() after restoring each file to restore
 242         correctly files ending by a hole.
 243
 244 Changes between versions 0.2d and 0.2e
 245 ======================================
 246
 247 1.      Fixed a bug in the "set owner/mode" process.  Every file was restored
 248         with owner = root (0) and group = root/wheel/whatever (0).
 249
 250 Changes between versions 0.2c and 0.2d
 251 ======================================
 252
 253 1.      Dump is now able to backup 2GB+ filesystems.
 254
 255 2.      Dump and restore can now be linked as static binaries.
 256
 257 Changes between versions 0.2b and 0.2c
 258 ======================================
 259
 260 1.      Fixed a bug when dumping ``slow'' (i.e. normal) symbolic links.
 261
 262 Changes between versions 0.2a and 0.2b
 263 ======================================
 264
 265 1.      Really fixed the bug that I should have corrected in 0.2a.
 266
 267 2.      Enabled optimization again.
 268
 269 Changes between versions 0.2 and 0.2a
 270 =====================================
 271
 272 1.      Disabled the optimization during compilation.
 273
 274 Changes between versions 0.1 and 0.2
 275 ====================================
 276
 277 1.      Fixed a bug in fstab.c which caused a null pointer to be stored in
 278         the fs_type field (actually, I modified the file fstab.c to make it
 279         use the mntent functions).
 280
 281 2.      Dump and restore now use a 4.3 BSD compatible dump format.  Backups
 282         made by dump should be readable by the BSD restore and backups made
 283         by the BSD dump should be readable by restore.  Unfortunately, this
 284         means that the dump format has changed between version 0.1 and version
 285         0.2 :-(
 286
 287 3.      Dump is now able to backup a subtree, it is no longer limited to whole
 288         filesystems like the BSD version.
 289
 290 4.      Dump now uses ext2_llseek() so it is able to backup filesystems bigger
 291         than 2 GB.
 292
 293 Changes between versions 0.0 and 0.1
 294 ====================================
 295
 296 1.      Now create links rdump and rrestore during the `make install' step.
 297
 298 2.      Linux port specific bugs added to the manual pages
 299
 300 3.      Incorrect estimation of the number of tapes blocks fixed when doing
 301         incremental backups.
 302
 303 4.      Better ls-like format in restore in interactive mode.