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Operating Systems Solaris Move root disk to new identical hardware Post 303040921 by hicksd8 on Saturday 9th of November 2019 02:02:16 PM
Old 11-09-2019
No, it's not only necessary in x86.

On x86 the hostid is computed at random at installation time. On SPARC the hostid is a hash of the hardware NIC address so in situations where you cannot move an EPROM (ie, newer hardware), the hostid will be different from the original box. Therefore you have to forcibly set it by injection into the kernel module.
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chxge(7D)							      Devices								 chxge(7D)

NAME
chxge - Chelsio Ethernet network interface controllers SYNOPSIS
/dev/chxge DESCRIPTION
The chxge Ethernet driver is a multi-threaded, loadable, clonable, STREAMS hardware driver supporting the connectionless Data Link Provider Interface, dlpi(7P), over Chelsio NIC controllers. Multiple (and mixed) NIC controllers installed within the system are sup- ported by the driver. The chxge driver provides basic support for the NIC hardware. Functions include chip initialization, frame transmit and receive, and error recovery and reporting. APPLICATION PROGRAMMING INTERFACE
The cloning, character-special device /dev/chxge is used to access NIC devices installed within the system. CHXGE AND DLPI
The chxge driver is dependent on /kernel/misc/gld, a loadable kernel module that provides the chxge driver with the DLPI and STREAMS functionality required of a LAN driver. See gld(7D) for more details on the primitives supported by the driver. The values returned by the driver in the DL_INFO_ACK primitive in response to the DL_INFO_REQ are: o Default Maximum SDU is 1500 (ETHERMTU). o dlsap address length is 8. o MAC type is DL_ETHER. o The sap length value is -2, meaning the physical address component is followed immediately by a 2-byte sap component within the DLSAP address. o Broadcast address value is Ethernet/IEEE broadcast address (FF:FF:FF:FF:FF:FF). FILES
/dev/chxge Character special device. /kernel/drv/sparcv9/chxge SPARC chxge driver binary. /kernel/drv/chxge x86 platform kernel module. (32-bit). /kernel/drv/amd64/chxge x86 platform kernel module. (64-bit). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |SPARC, x86 | +-----------------------------+-----------------------------+ SEE ALSO
netstat(1M), attributes(5), gld(7D), dlpi(7P), gld(9F), gld_mac_info(9S) SunOS 5.11 17 Jan 2005 chxge(7D)
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