[Parted-maintainers] Bug#417073: parted: trouble growing an old
ext2 partition
J S Bygott
jsb_no_spm at jsbygott.fsnet.co.uk
Sun Apr 1 14:05:32 UTC 2007
Package: parted
Version: 1.7.1-3
Severity: normal
Parted says "You found a bug in GNU Parted!".
But even before it said that, a resize command seems to have failed silently.
I'm attaching a log file with details. I'm going to leave the offending
partitions alone for a while, in case you get back to me for further details.
At the start of the logfile, we have
5 7230MB 9377MB 2147MB logical ext2 /usr
6 9377MB 10.2GB 806MB logical ext2 (old /var) to be deleted
7 10.2GB 11.8GB 1612MB logical ext2 /home
8 11.8GB 12.0GB 197MB logical ext2 (old /tmp) to be deleted
My plan was to delete the partitions currently numbered 6 and 8, and
grow /usr and /home to fill the new space.
As the logfile shows:
- my first attempt to resize 5 failed silently (this seems bad!)
- my second attempt gives a lot of warnings of the type:
Warning: Block 786702 shouldn't have been marked (0, 1)!
and then:
Error: Attempt to read sectors -2--1 outside of partition on /dev/hda.
Ignore/Cancel? c
- when I cancelled, parted said that I'd found a bug, and then:
Error: SEGV_MAPERR (Address not mapped to object)Aborted
Later by contrast, removing (the old) 8 and growing /home worked perfectly.
It seems to me that:
- it's bad that the first resize failed *silently*
- some documentation on what the warnings mean and whether they are
safe to ignore would we welcome
Trying the same resize again gives the same errors. For the time being, I'm
not going to try anything else with that partition and that free space, in
case you want some more information, a backtrace or something.
I can give more details of the partition's history:
(January 2000)
- win98SE installer used to make /dev/hda1; win98SE installed there
- slink installer used to make other partitions
- only further change in seven years was updating the swap-partition type
(March 2007)
- booted testing etch from /dev/hdb
- dumped the disk layout with "sfdisk -d"
(for clarity, I've added another column to show the normal mount points)
# partition table of /dev/hda
unit: sectors
/dev/hda1 : start= 63, size= 13349952, Id= b
/dev/hda2 : start= 13350015, size= 257040, Id=83, bootable /
/dev/hda3 : start= 13607055, size= 13092975, Id= 5
/dev/hda4 : start= 0, size= 0, Id= 0
/dev/hda5 : start= 13607118, size= 256977, Id=82 swap
/dev/hda6 : start= 13864158, size= 256977, Id=82 swap
/dev/hda7 : start= 14121198, size= 4192902, Id=83 /usr
/dev/hda8 : start= 18314163, size= 1574307, Id=83 /var
/dev/hda9 : start= 19888533, size= 3148677, Id=83 /home
/dev/hda10: start= 23037273, size= 3662757, Id=83 /tmp
- used parted 1.7.1-3 from testing to make successful changes to /dev/hda
as follows:
- rm 6 (old-style 128MB swap partition for kernel < 2.1.xxx)
- rm 5 (old-style 128MB swap partition for kernel < 2.1.xxx)
- resize 3 7230 13670 (shrink extended partition now that swap is gone)
- resize 2 6834 7033 (grow root partition by 50%)
- mkpartfs primary linux-swap 7033 7230 (single bigger swap, ~192MB)
- new output from "sfdisk -d"
# partition table of /dev/hda
unit: sectors
/dev/hda1 : start= 63, size= 13349952, Id= b
/dev/hda2 : start= 13350015, size= 385560, Id=83, bootable /
/dev/hda3 : start= 14121135, size= 12578895, Id= 5
/dev/hda4 : start= 13735575, size= 385560, Id=82 swap
/dev/hda5 : start= 14121198, size= 4192902, Id=83 /usr
/dev/hda6 : start= 18314163, size= 1574307, Id=83 /var
/dev/hda7 : start= 19888533, size= 3148677, Id=83 /home
/dev/hda8 : start= 23037273, size= 3662757, Id=83 /tmp
- used parted 1.7.1-3 to make more changes as follows:
- resize 8 23037273s 23422769s (down to size by which /home will grow)
- mkpart logical ext2 23422833s 25125659s (this will be the new /var)
- cp 6 9 (paranoid: use cp (not move) so I can mount both for 'diff -R')
- mkpart logical ext2 25125723s 26700029s (this will be the new /tmp)
- cp 8 10 (paranoid again)
- rebooted; did my paranoid checks; ready to erase the old partitions
- rm 6 (the old /var), see logfile
- failure to grow /usr (the reason for this bugreport)
- rm 7 (the new minor number for the old /tmp)
- success with growing /home
-- System Information:
Debian Release: 4.0
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-3-486
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=ISO-8859-1)
Versions of packages parted depends on:
ii libc6 2.3.6.ds1-8 GNU C Library: Shared libraries
ii libncurses5 5.5-5 Shared libraries for terminal hand
ii libparted1.7-1 1.7.1-3 The GNU Parted disk partitioning s
ii libreadline5 5.2-2 GNU readline and history libraries
parted recommends no packages.
-- no debconf information
-------------- next part --------------
[Log of parted session, edited slightly for readability.]
Script started on Fri 30 Mar 2007 22:41:44 BST
wilma:~# parted /dev/hda
GNU Parted 1.7.1
Using /dev/hda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Disk /dev/hda: 13.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 6835MB 6835MB primary fat32
2 6835MB 7033MB 197MB primary ext2 boot
4 7033MB 7230MB 197MB primary linux-swap
3 7230MB 13.7GB 6440MB extended
5 7230MB 9377MB 2147MB logical ext2
6 9377MB 10.2GB 806MB logical ext2
7 10.2GB 11.8GB 1612MB logical ext2
8 11.8GB 12.0GB 197MB logical ext2
9 12.0GB 12.9GB 872MB logical ext2
10 12.9GB 13.7GB 806MB logical ext2
(parted) rm 6
(parted) print
Disk /dev/hda: 13.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 6835MB 6835MB primary fat32
2 6835MB 7033MB 197MB primary ext2 boot
4 7033MB 7230MB 197MB primary linux-swap
3 7230MB 13.7GB 6440MB extended
5 7230MB 9377MB 2147MB logical ext2
6 10.2GB 11.8GB 1612MB logical ext2
7 11.8GB 12.0GB 197MB logical ext2
8 12.0GB 12.9GB 872MB logical ext2
9 12.9GB 13.7GB 806MB logical ext2
(parted) resize 5
Start? [7230MB]?
End? [9377MB]? 10.2GB
(parted) print
Disk /dev/hda: 13.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 6835MB 6835MB primary fat32
2 6835MB 7033MB 197MB primary ext2 boot
4 7033MB 7230MB 197MB primary linux-swap
3 7230MB 13.7GB 6440MB extended
5 7230MB 9377MB 2147MB logical ext2
6 10.2GB 11.8GB 1612MB logical ext2
7 11.8GB 12.0GB 197MB logical ext2
8 12.0GB 12.9GB 872MB logical ext2
9 12.9GB 13.7GB 806MB logical ext2
(parted) unit cyl
(parted) print
Disk /dev/hda: 1662cyl
Sector size (logical/physical): 512B/512B
BIOS cylinder,head,sector geometry: 1662,255,63. Each cylinder is 8225kB.
Partition Table: msdos
Number Start End Size Type File system Flags
1 0cyl 830cyl 830cyl primary fat32
2 831cyl 854cyl 24cyl primary ext2 boot
4 855cyl 878cyl 24cyl primary linux-swap
3 879cyl 1661cyl 783cyl extended
5 879cyl 1139cyl 260cyl logical ext2
6 1238cyl 1433cyl 195cyl logical ext2
7 1434cyl 1457cyl 23cyl logical ext2
8 1458cyl 1563cyl 105cyl logical ext2
9 1564cyl 1661cyl 97cyl logical ext2
(parted) unit s
(parted) print
Disk /dev/hda: 26711999s
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 63s 13350014s 13349952s primary fat32
2 13350015s 13735574s 385560s primary ext2 boot
4 13735575s 14121134s 385560s primary linux-swap
3 14121135s 26700029s 12578895s extended
5 14121198s 18314099s 4192902s logical ext2
6 19888533s 23037209s 3148677s logical ext2
7 23037273s 23422769s 385497s logical ext2
8 23422833s 25125659s 1702827s logical ext2
9 25125723s 26700029s 1574307s logical ext2
(parted) resize 5
Start? [14121198s]?
End? [18314099s]? 19888469s
Warning: Block 786702 shouldn't have been marked (0, 1)!
Warning: Block 786703 shouldn't have been marked (0, 1)!
Warning: Block 999695 shouldn't have been marked (0, 1)!
Warning: Block 1065230 shouldn't have been marked (0, 1)!
Warning: Block 1065231 shouldn't have been marked (0, 1)!
Warning: Block 1081613 shouldn't have been marked (0, 1)!
Warning: Block 1081614 shouldn't have been marked (0, 1)!
Warning: Block 1081615 shouldn't have been marked (0, 1)!
Warning: Block 1294605 shouldn't have been marked (0, 1)!
Warning: Block 1294606 shouldn't have been marked (0, 1)!
Warning: Block 1294607 shouldn't have been marked (0, 1)!
Warning: Block 1409293 shouldn't have been marked (0, 1)!
Warning: Block 1409294 shouldn't have been marked (0, 1)!
Warning: Block 1409295 shouldn't have been marked (0, 1)!
Warning: Block 1442061 shouldn't have been marked (0, 1)!
Warning: Block 1442062 shouldn't have been marked (0, 1)!
Warning: Block 1442063 shouldn't have been marked (0, 1)!
Warning: Block 1458445 shouldn't have been marked (0, 1)!
Warning: Block 1458446 shouldn't have been marked (0, 1)!
Warning: Block 1458447 shouldn't have been marked (0, 1)!
Warning: Block 1540365 shouldn't have been marked (0, 1)!
Warning: Block 1540366 shouldn't have been marked (0, 1)!
Warning: Block 1802509 shouldn't have been marked (0, 1)!
Warning: Block 1802510 shouldn't have been marked (0, 1)!
Error: Attempt to read sectors -2--1 outside of partition on /dev/hda.
Ignore/Cancel? c
You found a bug in GNU Parted! Here's what you have to do:
Don't panic! The bug has most likely not affected any of your data.
Help us to fix this bug by doing the following:
Check whether the bug has already been fixed by checking
the last version of GNU Parted that you can find at:
http://ftp.gnu.org/gnu/parted/
Please check this version prior to bug reporting.
If this has not been fixed yet or if you don't know how to check,
please visit the GNU Parted website:
http://www.gnu.org/software/parted
for further information.
Your report should contain the version of this release (1.7.1)
along with the error message below, the output of
parted DEVICE unit co print unit s print
and additional information about your setup you consider important.
Error: SEGV_MAPERR (Address not mapped to object)Aborted
wilma:~# exit
Script done on Fri 30 Mar 2007 22:46:47 BST
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