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[Bug 939456] Tumbleweed installation USB key does not boot
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Tue, 16 May 2017 15:11:24 +0000
  • Message-id: <bug-939456-21960-Els5B9YI2c@http.bugzilla.suse.com/>
http://bugzilla.suse.com/show_bug.cgi?id=939456
http://bugzilla.suse.com/show_bug.cgi?id=939456#c50

H. Zeng <zhx@xxxxxxxxx> changed:

What |Removed |Added
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Flags|needinfo?(zhx@xxxxxxxxx) |

--- Comment #50 from H. Zeng <zhx@xxxxxxxxx> ---
Created attachment 725251
--> http://bugzilla.suse.com/attachment.cgi?id=725251&action=edit
Partition table of the USB stick made with modified (mksusecd -c new.iso --fat
--no-efi tw.iso) ISO using `dd`

Here is the partition table of the USB stick made with modified (mksusecd -c
new.iso --fat --no-efi tw.iso) ISO using `dd` command.

In case it matters, although I could use the rest capacity of the USB stick as
I can to the Rufus made USB stick, the left capacity of the USB stick is only
less than 20MiB comparing around 4GiB in the Rufus made USB stick.

I ***could not boot*** into installation with this USB stick. The symptom is
the still the same: screen turns black for a second then flash back to the UEFI
boot menu with the first entry selected. No error message.

As a reference, here is the commands and outputs I used to modify the ISO and
create the USB stick.
```
cnzhx@a:~> mksusecd --version
1.51
cnzhx@a:~> cd /data
cnzhx@a:/data> sudo mksusecd -c ostw.iso --fat --no-efi
/run/media/cnzhx/Other/iso/openSUSE-Tumbleweed-DVD-x86_64-Snapshot20170510-Media.iso
El-Torito legacy bootable (x86_64)
building: 100%
calculating sha1...
cnzhx@a:/data> su
Password:
a:/data # fdisk -l /dev/sdc
Disk /dev/sdc: 7.2 GiB, 7736072192 bytes, 15109516 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x000e7b75

Device Boot Start End Sectors Size Id Type
/dev/sdc1 * 2048 15109515 15107468 7.2G c W95 FAT32 (LBA)
a:/data # umount /dev/sdc1
a:/data # umount /dev/sdc
umount: /dev/sdc: not mounted
a:/data # dd if=ostw.iso of=/dev/sdc bs=4M status=progress && sync
4155506688 bytes (4.2 GB, 3.9 GiB) copied, 122.307 s, 34.0 MB/s
990+1 records in
990+1 records out
4155506688 bytes (4.2 GB, 3.9 GiB) copied, 470.655 s, 8.8 MB/s
```

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