Hi Graziano,
Excellent. Other people will be using the net4501 with 4.x so I would
like to include the necessary changes automatically as part of the build
process rather than having to edit the initrd manually. Since we seem to
need a custom kernel we need a custom disk Image, so we might as well
tailor that for the net45xx.
Once you get an initrd.lrp and leaf.cfg which boot automatically please
confirm what you had to edit so that I can include that in the build
process. Seems to be at least:
- Special "ELAN" kernel variant
- Module pata_legacy, which is not automatically detected so needs to
be listed in /boot/etc/modules
- This in turn needs libata and scsi_mod Modules ???
- The device files need to be created explicitly ???
- Maybe loading sd_mod will create these ???
Do you actually need to specify libata.dma=0 or will it work without
that?
dMb
On Thu, 2011-05-05 at 16:55 +0200, Graziano Brioschi wrote:
> Hi Andrew
>
> Il 05/05/2011 8.34, Andrew ha scritto:
> > find /sys/devices -iname modalias -exec cat {} \;
>
> Thank you for suggestions; my net450 seems to work correctly using
> "pata_legacy" module!
>
> Here the output about my test:
>
> .....
> [ 4.156221] Write protecting the kernel read-only data: 744k
> [ 4.156221] Write protecting the kernel read-only data: 744k
> LINUXRC: Bering - Initrd - 4.0.0 Rev 12 uClibc 0.9.30.3
> LINUXRC: Parsing kernel command line...
> /init: eval: line 1: KCMD_libata.dma=0: not found
> LINUXRC: Loading modules...
> LINUXRC: Root: /dev/ram0
> LINUXRC: Looking for leaf.cfg...
> LINUXRC: Generating default dirs...
> LINUXRC: Generating /tmp & /var/log partitions ...
> LINUXRC: PKGPATH is empty or unset. Can not install packages.
> LINUXRC: LRP= is empty or unset. Can not install packages.
> LINUXRC: chown and chmod /dev...
> LINUXRC: Loaded Packages
> LINUXRC: Creating new rootfs...
> LINUXRC: Switch_root into new rootfs...
> can't run '/etc/init.d/rcS': No such file or directory
>
> Please press Enter to activate this console.
>
> / # find /sys/devices -iname modalias -exec cat {} \;
> platform:rtc_cmos
> platform:pcspkr
> platform:serial8250
> pci:v00001022d00003000sv00000000sd00000000bc06sc00i00
> pci:v0000100Bd00000020sv0000100Bsd00000020bc02sc00i00
> pci:v0000100Bd00000020sv0000100Bsd00000020bc02sc00i00
> pci:v0000100Bd00000020sv0000100Bsd00000020bc02sc00i00
> / # modprobe ata_generic
> [ 1074.983892] SCSI subsystem initialized
> [ 1074.983892] SCSI subsystem initialized
> / #
>
>
>
> Unfortunately i cannot see my IDE devices...
>
> then:
>
>
> / # rmmod ata_generic
> / # lsmod
> Not tainted
> libata 115356 0 - Live 0xb48c7000
> scsi_mod 93536 1 libata, Live 0xb486e000
> vfat 6542 0 - Live 0xb483b000
> fat 34532 1 vfat, Live 0xb4825000
> isofs 17079 0 - Live 0xb4809000
> / # modprobe pata_legacy
> [ 1166.328887] scsi0 : pata_legacy
> [ 1166.328887] scsi0 : pata_legacy
> [ 1166.339889] ata1: PATA max PIO4 cmd 0x1f0 ctl 0x3f6 irq 14
> [ 1166.339889] ata1: PATA max PIO4 cmd 0x1f0 ctl 0x3f6 irq 14
> [ 1166.499877] ata1.00: CFA: SanDisk SDCFH-1024, HDX 4.09, max MWDMA2
> [ 1166.499877] ata1.00: CFA: SanDisk SDCFH-1024, HDX 4.09, max MWDMA2
> [ 1166.502741] ata1.00: 2001888 sectors, multi 0: LBA
> [ 1166.502741] ata1.00: 2001888 sectors, multi 0: LBA
> [ 1166.503116] ata1.00: configured for PIO
> [ 1166.503116] ata1.00: configured for PIO
> [ 1166.507012] scsi 0:0:0:0: Direct-Access ATA SanDisk SDCFH-10
> HDX PQ: 0 ANSI: 5
> [ 1166.507012] scsi 0:0:0:0: Direct-Access ATA SanDisk SDCFH-10
> HDX PQ: 0 ANSI: 5
> [ 1166.536888] scsi1 : pata_legacy
> [ 1166.536888] scsi1 : pata_legacy
> [ 1166.550882] ata2: PATA max PIO4 cmd 0x170 ctl 0x376 irq 15
> [ 1166.550882] ata2: PATA max PIO4 cmd 0x170 ctl 0x376 irq 15
> / #
>
> Good! the output is more interesting!
>
> cat /sys/class/scsi_host/host0/device/target0\:0\:0/0\:0\:0\:0/model
> SanDisk SDCFH-10
>
> and finally:
>
> /dev # mknod /dev/sda b 8 0
> /dev # mknod /dev/sda1 b 8 1
> /dev # mount -t vfat /dev/sda1 /mnt
> [ 1888.810891] sd 0:0:0:0: [sda] 2001888 512-byte logical blocks: (1.02
> GB/977 MiB)
> [ 1888.810891] sd 0:0:0:0: [sda] 2001888 512-byte logical blocks: (1.02
> GB/977 MiB)
> [ 1888.829888] sd 0:0:0:0: [sda] Write Protect is off
> [ 1888.829888] sd 0:0:0:0: [sda] Write Protect is off
> [ 1888.842901] sd 0:0:0:0: [sda] Write cache: disabled, read cache:
> enabled, doesn't support DPO or FUA
> [ 1888.842901] sd 0:0:0:0: [sda] Write cache: disabled, read cache:
> enabled, doesn't support DPO or FUA
> [ 1888.876878] sda:[ 1888.876878] sda: sda1 sda1
>
> [ 1888.919892] sd 0:0:0:0: [sda] Attached SCSI removable disk
> [ 1888.919892] sd 0:0:0:0: [sda] Attached SCSI removable disk
>
>
> it seems to work!
>
> Thanks all!
> Graziano
>
> I will put all these commands together in an initrd.lrp for net4501 and
> I will share it if there is somebody who want to install new BuC40 on
> Soekris Enginnering net4501.
>
>
>
> --
>
> Graziano Brioschi
>
> Outland s.a.s.
> sede operativa:
> Via A. Don Rocca, 13
> 20030, Senago (MI)
> tel: 02 9948 6014
> mobile: 328 8382622
> email: graziano.brios...@outland.it
> --> U4E<--
>
>
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