Help with ZuluSCSI on Mac LC.

[crazyben]

I have installed Mac OS 7.5.3 on 2 gb image (HD1 System 7.5.3.hda). It loads up when I use sheepshaver. But when I connect to my LC, the LC won't boot from it.
Here is the Zululog.

[10ms] Platform: ZuluSCSI RP2040
[10ms] FW Version: 23.07.01-release Jun 30 2023 16:12:07
[11ms] DIP switch settings: debug log 0, termination 1
[11ms] SCSI termination is enabled
[12ms] Flash chip size: 4096 kB
[14ms] SCSI target/disk mode selected by DIP switch, acting as a SCSI disk
[32ms] SD card detected, FAT64 volume size: 15189 MB
[33ms] SD MID: 0x03, OID: 0x53 0x44
[33ms] SD Name: SB16G
[33ms] SD Date: 10/2020
[34ms] SD Serial: 0xD271D0A7
[38ms] Config file zuluscsi.ini not found, using defaults
[40ms] Active configuration:
[42ms] -- SelectionDelay = 255
[44ms] -- EnableUnitAttention = No
[45ms] -- EnableSCSI2 = Yes
[46ms] -- EnableSelLatch = No
[47ms] -- MapLunsToIDs = No
[49ms] -- EnableParity = Yes
[301ms] Finding HDD images in directory /:
[303ms] -- Opening /HD1 System 7.5.3.hda for id:1 lun:0
[305ms] ---- WARNING: file /HD1 System 7.5.3.hda is not contiguous. This will increase read latency.
[306ms] ---- Read prefetch enabled: 8192 bytes
[317ms] -- Platform supports ROM drive up to 3740 kB
[317ms] ---- ROM drive image not detected
[318ms] SCSI ID:1 BlockSize:512 Type:0 Quirks:0 ImageSize:2097152kB
[421ms] Initialization complete!

 

[Forrest]

Looks ok.
You may want to download System 7.5.5 from this link below, unzip the file and name it HD20.hda and place it on the SD card
https://www.savagetaylor.com/downloads/downloads-macintosh/

 

[crazyben]

That did not work. Here is the log.

[10ms] Platform: ZuluSCSI RP2040
[10ms] FW Version: 23.07.01-release Jun 30 2023 16:12:07
[11ms] DIP switch settings: debug log 0, termination 1
[11ms] SCSI termination is enabled
[12ms] Flash chip size: 4096 kB
[14ms] SCSI target/disk mode selected by DIP switch, acting as a SCSI disk
[65ms] SD card detected, FAT64 volume size: 15189 MB
[66ms] SD MID: 0x03, OID: 0x53 0x44
[66ms] SD Name: SB16G
[67ms] SD Date: 10/2020
[67ms] SD Serial: 0xD271D0A7
[71ms] Config file zuluscsi.ini not found, using defaults
[73ms] Active configuration:
[75ms] -- SelectionDelay = 255
[77ms] -- EnableUnitAttention = No
[78ms] -- EnableSCSI2 = Yes
[79ms] -- EnableSelLatch = No
[81ms] -- MapLunsToIDs = No
[82ms] -- EnableParity = Yes
[339ms] Finding HDD images in directory /:
[340ms] -- Opening /HD20.hda for id:2 lun:0
[343ms] ---- WARNING: file /HD20.hda is not contiguous. This will increase read latency.
[344ms] ---- Read prefetch enabled: 8192 bytes
[354ms] -- Platform supports ROM drive up to 3740 kB
[355ms] ---- ROM drive image not detected
[355ms] SCSI ID:2 BlockSize:512 Type:0 Quirks:0 ImageSize:2097152kB
[459ms] Initialization complete!

 

[Forrest]

SCSI ribbon cable damaged? Can you swap it for another cable?

 

[crazyben]

Yup I can try that.

 

[Forrest]

Maybe I was jumping the gun. What exactly does non-working mean? Does you computer see the hard drive after booting up? Does SCSIProbe see the drive? Do you have a boot floppy in the drive or another hard drive attached to the computer?

 

[crazyben]

So turns out the connector is bad. This board has not been recapped. When I plugged the working cable to LC it didn’t work. But when I plugged LC HDD to Mac II it worked perfectly.

 

[Forrest]

Glad you are making progress. If you have a SCSI external case, you can plug the ZuluSCSI in the case and connect it to the external SCSI port

 

[crazyben]

Unfortunately I do not. I should have bought that lol.

 

[Forrest]

You can connect the ZuluSCSI to the external port with a SCSI adapter such as the https://store.rabbitholecomputing.com/product-p/idc50f-db25f.htm and place it in a small case.