You can attach files one at a time in later comments; you don't have to
attach them all in the initial form submission.

The syslog shows:

Jan  9 10:51:25 ubuntu kernel: [ 3058.423731] sr 1:0:0:0: [sr0] Unhandled sense 
code
Jan  9 10:51:25 ubuntu kernel: [ 3058.423739] sr 1:0:0:0: [sr0] Result: 
hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jan  9 10:51:25 ubuntu kernel: [ 3058.423744] sr 1:0:0:0: [sr0] Sense Key : 
Medium Error [current] 
Jan  9 10:51:25 ubuntu kernel: [ 3058.423751] sr 1:0:0:0: [sr0] Add. Sense: No 
seek complete
Jan  9 10:51:25 ubuntu kernel: [ 3058.423757] sr 1:0:0:0: [sr0] CDB: Read(10): 
28 00 00 04 ec 4c 00 00 08 00
Jan  9 10:51:25 ubuntu kernel: [ 3058.423767] end_request: I/O error, dev sr0, 
sector 1290544
Jan  9 10:51:25 ubuntu kernel: [ 3058.423775] Buffer I/O error on device sr0, 
logical block 322636
Jan  9 10:51:25 ubuntu kernel: [ 3058.423779] Buffer I/O error on device sr0, 
logical block 322637
Jan  9 10:51:25 ubuntu kernel: [ 3058.423787] Buffer I/O error on device sr0, 
logical block 322638
Jan  9 10:51:25 ubuntu kernel: [ 3058.423790] Buffer I/O error on device sr0, 
logical block 322639
Jan  9 10:51:25 ubuntu kernel: [ 3058.423794] Buffer I/O error on device sr0, 
logical block 322640
Jan  9 10:51:25 ubuntu kernel: [ 3058.423798] Buffer I/O error on device sr0, 
logical block 322641
Jan  9 10:51:25 ubuntu kernel: [ 3058.423802] Buffer I/O error on device sr0, 
logical block 322642
Jan  9 10:51:25 ubuntu kernel: [ 3058.423806] Buffer I/O error on device sr0, 
logical block 322643
Jan  9 10:51:32 ubuntu ubiquity: dpkg (subprocess): failed to exec dpkg-split 
to see if it's part of a multiparter: Input/output error
Jan  9 10:51:32 ubuntu ubiquity: dpkg: error processing 
/target/var/cache/apt/archives/gnome-user-guide-en_2.30.0+git20100403ubuntu2_all.deb
 (--unpack):
Jan  9 10:51:32 ubuntu ubiquity:  subprocess dpkg-split returned error exit 
status 2
Jan  9 10:51:32 ubuntu ubiquity: No apport report written because MaxReports is 
reached already
Jan  9 10:51:32 ubuntu ubiquity: dpkg (subprocess): failed to exec dpkg-split 
to see if it's part of a multiparter: Input/output error
Jan  9 10:51:32 ubuntu kernel: [ 3065.776048] SQUASHFS error: 
squashfs_read_data failed to read block 0x255df39e
Jan  9 10:51:32 ubuntu kernel: [ 3065.776060] SQUASHFS error: Unable to read 
fragment cache entry [255df39e]
Jan  9 10:51:32 ubuntu kernel: [ 3065.776065] SQUASHFS error: Unable to read 
page, block 255df39e, size 52ff
Jan  9 10:51:32 ubuntu kernel: [ 3065.776078] SQUASHFS error: Unable to read 
fragment cache entry [255df39e]
Jan  9 10:51:32 ubuntu kernel: [ 3065.776082] SQUASHFS error: Unable to read 
page, block 255df39e, size 52ff

... and it all goes downhill from there.

In short, this means that there's been a problem reading from the CD.
This is generally due to a faulty CD/DVD disk or drive, rather than
being an installer bug as such.  It may help to clean the CD/DVD, to
burn the CD/DVD at a lower speed, or to clean the CD/DVD drive lens
(cleaning kits are often available from electronics suppliers).

** Changed in: ubiquity (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/700642

Title:
  Error terminates install process

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