Public bug reported:
Binary package hint: casper
to the best of my ability to judge, have burned a good CD:
br...@xenophon:~$ cd iso/kubuntu/
br...@xenophon:~/iso/kubuntu$ cat ~/bin/rawread
#!/bin/sh
device=$1
blocksize=`isoinfo -d -i $device | grep "^Logical block size is:" | cut -d " "
-f 5`
if test "$blocksize" = ""; then
echo catdevice FATAL ERROR: Blank blocksize >&2
exit
fi
blockcount=`isoinfo -d -i $device | grep "^Volume size is:" | cut -d " " -f 4`
if test "$blockcount" = ""; then
echo catdevice FATAL ERROR: Blank blockcount >&2
exit
fi
command="dd if=$device bs=$blocksize count=$blockcount conv=notrunc,noerror"
echo "$command" >&2
$command
br...@xenophon:~/iso/kubuntu$ rawread /dev/sr0 | md5sum
dd if=/dev/sr0 bs=2048 count=357047 conv=notrunc,noerror
357047+0 records in
357047+0 records out
731232256 bytes (731 MB) copied, 138.253 s, 5.3 MB/s
5b256bf515ae49749ac03a1af9d407c0 -
br...@xenophon:~/iso/kubuntu$ grep desktop-amd64 MD5SUMS_kubuntu-10.04-lucid
5b256bf515ae49749ac03a1af9d407c0 *kubuntu-10.04-desktop-amd64.iso
br...@xenophon:~/iso/kubuntu$
1. Whenever I start this CD, it prompts for language and prompts user to "try
Kubuntu without installing."
2. Splash screen appears and machine hangs. On one occasion, left machine for
several hours; remained hung at splash screen.
3. Machine responds to Ctrl-Alt-Del.
Other comments:
1. Like many Linux amateurs, I am an incurable experimenter, Have booted
several dozen install CDs in this machine; this is first *buntu CD which has
failed to load (others have sometimes failed to install, but that was during
development and was to be expected). This incident occurred with *_release_*
version. First observed on release day (2010-04-29, repeated today (2010-05-09)
2. Was also unable to "test CD for defects". Transcribed following error
message by hand:
(initramfs) mount: mounting /dev/lopp0 on //filesystem/squashfs failed:
Input/output error
Can not mount /dev/loop0 (/cdrom/casper/filesystem.squashfs) on
//filesystem.squashfs
3. Kubuntu Lucid Lynx 10.04 alternate CD started (and installed) without
incident.
4. During development cycle of 10.04, not all daily builds would install, but
no CD ever failed to start
5. hardware is "white box", but contains nothing out of the ordinary.
All signs point to a bad CD, but I checked MD5SUM of .iso after
downloading, and MD5SUM of CD after burning. If MD5SUMs match, am I not
guaranteed an accurate CD?
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: casper (not installed)
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sun May 9 00:26:08 2010
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
ProcEnviron:
LANGUAGE=
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: casper
** Affects: casper (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid
--
Kubuntu Lucid Lynx 10.04 Live CD failed to start
https://bugs.launchpad.net/bugs/577684
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