Porteus sgn file not found when booting from USB

[francois]

francois and donald

I used the dd command as you mentioned:
.. Afterwards, initially the cloned SanDisk USB wouldn't even boot. So I went to /boot and ran "sh Porteus-installer-for-Linux*"
.. After running that installer, the Porteus login screen would appear (showing boot choices), but upon selection of an option I again get the "Porteus data not found" error.

If the porteus OS was on the key, this means that you need to add a boot loader.

However, as dd command usually copies all the info including boot loader and bootb sector, this seems to mean that the key is not functioning properly.

[Bogomips]

this seems to mean that the key is not functioning properly.

Or, put another way, the key is not being driven properly, as confirmed by uyduruq

[Ed_P]

Or, put another way, the key is not being driven properly, as confirmed by uyduruq

Agreed. If it was a key problem it wouldn't boot warm or cold. The proper driver is not being loaded during a cold boot.

[Ed_P]

hmmmmm Does the drive's MBR have the LBA option set on it?

[ping69]

In case the problem is still exists:
Please look a this thread http://forum.porteus.org/viewtopic.php?f=117&t=5001
Perhaps your sandisk USB 3.0 stick also offers USB UASP for better performance and porteus can not boot due to UASP support not compiled into the kernel.

You can check this with booting from another USB Stick, plug in the 'faulty' stick.
Is it detected and can be accessed? Then examine the output of dmesg (first line):

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[  421.609360] scsi host9: uas
[  421.613320] scsi 9:0:0:0: Direct-Access     SanDisk  SDSSDHP128G      0    PQ: 0 ANSI: 6
[  421.618572] sd 9:0:0:0: [sdd] 250069680 512-byte logical blocks: (128 GB/119 GiB)
[  421.619815] sd 9:0:0:0: [sdd] Write Protect is off
[  421.619819] sd 9:0:0:0: [sdd] Mode Sense: 43 00 00 00
[  421.620572] sd 9:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA

and examine the output of "lsmod":

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# lsmod |grep uas
uas                    11852  2

ping69