Comment 16 for bug 65106

I am quite lost by you developers on this bug.

First, no one seems to have comment on the fact that original poster have nothing to do (as far as I see) related to kernel bug.
In fact, I see no usefull errors information in Jarno files except maybe:
Oct 10 16:01:24 ubuntu grub-installer: The file /boot/grub/stage1 not read correctly.
Oct 10 16:01:24 ubuntu grub-installer: error: Running 'grub-install --no-floppy "(hd0)"' failed.
at the end of syslog.

Then, I can only guess you have confirmed Marc Tardif bug about zlib oops that have followed the zlib error:
Oct 10 19:53:05 ubuntu python: mkdir /var/lib/ubiquity/source
Oct 10 19:53:05 ubuntu python: log-output -t ubiquity losetup /dev/loop1 /cdrom/casper/filesystem.squashfs
Oct 10 19:53:05 ubuntu ubiquity: mount: block device /dev/loop1 is write-protected, mounting read-only
Oct 10 19:53:05 ubuntu kernel: [17180051.256000] cramfs: wrong magic
Oct 10 19:53:05 ubuntu kernel: [17180051.256000] Unable to identify CD-ROM format.
Oct 10 19:53:05 ubuntu python: log-output -t ubiquity mount /dev/loop1 /var/lib/ubiquity/source
Oct 10 19:54:30 ubuntu dhclient: DHCPREQUEST on eth0 to 192.168.2.60 port 67
Oct 10 19:54:30 ubuntu dhclient: DHCPACK from 192.168.2.60
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: zlib_fs returned unexpected result 0xfffffffd
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: Unable to read page, block 1f2df643, size 6f37
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: zlib_fs returned unexpected result 0xfffffffd
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: Unable to read fragment cache block [25ee069b]
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: Unable to read page, block 25ee069b, size 4aff
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: zlib_fs returned unexpected result 0xfffffffb
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: Unable to read page, block 1f2df643, size 6f37
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: zlib_fs returned unexpected result 0xfffffffd
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: Unable to read fragment cache block [25ee069b]
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SQUASHFS error: Unable to read page, block 25ee069b, size 4aff
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] BUG: unable to handle kernel paging request at virtual address 31f1ca08
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] printing eip:
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] c01e7b49
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] *pde = 00000000
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] Oops: 0000 [#1]
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] SMP
Oct 10 19:54:30 ubuntu ubiquity[6594]: ubiquity: ['log-output', '-t', 'ubiquity', '--pass-stdout', '/usr/share/ubiquity/install.py'] exited with code 139
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] Modules linked in: xfs reiserfs jfs ext3 jbd ntfs vfat fat ext2 binfmt_misc rfcomm l2cap bluetooth ppdev lp speedstep_lib cpufreq_userspace cpufreq_stats freq_table cpufreq_powersave cpufreq_ondemand cpufreq_conservative video tc1100_wmi sony_acpi sbs pcc_acpi i2c_ec i2c_core hotkey dev_acpi container button battery asus_acpi ac ipv6 af_packet snd_hda_intel snd_hda_codec tsdev snd_pcm_oss snd_mixer_oss sg snd_pcm psmouse snd_timer snd serio_raw parport_pc parport hw_random shpchp pci_hotplug soundcore snd_page_alloc evdev pcspkr tg3 usbhid squashfs loop unionfs nls_cp437 isofs ehci_hcd uhci_hcd usbcore ide_generic sd_mod ahci libata scsi_mod ide_cd cdrom piix generic thermal processor fan fbcon tileblit font bitblit softcursor vesafb capability commoncap
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] CPU: 1
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] EIP: 0060:[zlib_inflate_fast+553/1264] Not tainted VLI
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] EFLAGS: 00010246 (2.6.17-10-generic #2)
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] EIP is at zlib_inflate_fast+0x229/0x4f0
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] eax: 31f1ca08 ebx: 00000000 ecx: 000000c7 edx: 00000000
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] esi: 31f1ca08 edi: ffffff2d ebp: 000fe38a esp: e888b958
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] ds: 007b es: 007b ss: 0068
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] Process install.py (pid: 10325, threadinfo=e888a000 task=f7592a90)
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] Stack: f8927618 f8927550 f891da40 f8928740 f892761e 00001122 000001ff 0000003f
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] c01e7e10 0000075b eeec67dc 000fe38a 00000000 00000004 00000008 000004a7
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] 00000000 f891edb0 f8952d80 f891d01c 00000007 c01e7704 f891edb0 f891d01c
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] Call Trace:
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] <c01e7e10> zlib_adler32+0x0/0x140 <c01e7704> zlib_inflate_codes+0x6b4/0x8d0
Oct 10 19:54:30 ubuntu kernel: [17180135.532000] <c01e683c> zlib_inflate_blocks+0x56c/0xc60 <c01e82bb> zlib_inflate+0x35b/0x440

which I guess is what you are all confirming.
I find this strange, because kamion seemed to consider zlib_fs returned unexpected result 0xfffffffd, as just a faulty disk or faulty drive. In fact, there is other ubiquity bugs with this error, that was not transfrer on linux-kernel (or cramfs), because they did not resulted in a oops.

I still find that bug #65106 should not have been used as the one to add duplicates on, because I think Jarno error is not the same.