Re: new SMP kernel on the old Netra X1

On 9/5/25 02:09, John Paul Adrian Glaubitz wrote:
> Hello Dennis,
> 
...
> image=/vmlinux
>           label=Linux
>           initrd=/initrd.img
> 
> For the background: A bootloader using blocklists does not use a filesystem driver to
> access the stage2 bootloader. Instead, it remembers the position of the raw blocks of
> the stage2 bootloader on disk. This is why it's necessary not to use a fancy filesystem
> for /boot but something as simple as ext2 or ext3 and this is why the filesystem must
> not be too large, otherwise the blocks of the stage2 bootloader might beyond what the
> stage1 bootloader can access through the firmware.
> 

Well this is the magic knowledge that was missing. So here is some
progress right up until the root filesystem can not be located due
to some module missing somewhere :


ok
ok boot /pci@1f,0/ide@d/disk@0,0:a
Boot device: /pci@1f,0/ide@d/disk@0,0:a  File and args:
SILO Version 1.4.14
boot:
Allocated 64 Megs of memory at 0x40000000 for kernel
Loaded kernel version 6.12.3
Loading initial ramdisk (2857953 bytes at 0x6F000000 phys, 0x40C00000 
virt)...
\
[    0.000109] PROMLIB: Sun IEEE Boot Prom 'OBP 4.0.18 2002/05/23 18:22'
[    0.000185] PROMLIB: Root node compatible: sun4u
[    0.000514] Linux version 6.12.3-sparc64-smp 
([email protected]) (sparc64-linux-gnu-gcc-14 (Debian 
14.3.0-5) 14.3.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP Debian 
6.12.3-1+sparc64 (2025-08-28)
[    0.000821] printk: legacy bootconsole [earlyprom0] enabled
[    0.423989] ARCH: SUN4U
[    0.453155] Ethernet address: 00:03:ba:13:3c:25
[    0.507136] MM: PAGE_OFFSET is 0xfffff80000000000 (max_phys_bits == 40)
[    0.586072] MM: VMALLOC [0x0000000100000000 --> 0x0000060000000000]
[    0.660885] MM: VMEMMAP [0x0000060000000000 --> 0x00000c0000000000]
[    0.738209] Kernel: Using 5 locked TLB entries for main kernel image.
[    0.814304] Remapping the kernel...
[    0.816589] done.
[    1.109111] OF stdout device is: /pci@1f,0/isa@7/serial@0,3f8
[    1.176887] PROM: Built device tree with 77887 bytes of memory.
[    1.247889] Top of RAM: 0x6fec6000, Total RAM: 0x3fe34000
[    1.311964] Memory hole size: 768MB
[    1.363017] Allocated 16384 bytes for kernel page tables.
[    1.427122] Zone ranges:
[    1.456811]   Normal   [mem 0x0000000000000000-0x000000006fec5fff]
[    1.530581] Movable zone start for each node
[    1.581496] Early memory node ranges
[    1.624097]   node   0: [mem 0x0000000000000000-0x000000000fffffff]
[    1.698914]   node   0: [mem 0x0000000020000000-0x000000002fffffff]
[    1.773723]   node   0: [mem 0x0000000040000000-0x000000004fffffff]
[    1.848536]   node   0: [mem 0x0000000060000000-0x000000006effdfff]
[    1.923348]   node   0: [mem 0x000000006f000000-0x000000006fdfffff]
[    1.998161]   node   0: [mem 0x000000006fe80000-0x000000006feaffff]
[    2.072973]   node   0: [mem 0x000000006fec0000-0x000000006fec5fff]
[    2.147790] Initmem setup node 0 [mem 
0x0000000000000000-0x000000006fec5fff]
[    2.269414] On node 0, zone Normal: 32768 pages in unavailable ranges
[    2.370390] On node 0, zone Normal: 32768 pages in unavailable ranges
[    2.470618] On node 0, zone Normal: 32768 pages in unavailable ranges
[    2.547467] On node 0, zone Normal: 1 pages in unavailable ranges
[    2.619562] On node 0, zone Normal: 64 pages in unavailable ranges
[    2.693301] On node 0, zone Normal: 8 pages in unavailable ranges
[    2.778557] On node 0, zone Normal: 32925 pages in unavailable ranges
[    2.854669] Booting Linux...
[    2.888956] CPU CAPS: [flush,stbar,swap,muldiv,v9,mul32,div32,v8plus]
[    2.965841] CPU CAPS: [vis]
[    3.044551] percpu: Embedded 19 pages/cpu s117272 r8192 d30184 u4194304
[    3.129198] Kernel command line: root=/dev/sda4 ro
[    3.191403] Dentry cache hash table entries: 131072 (order: 7, 
1048576 bytes, linear)
[    3.287406] Inode-cache hash table entries: 65536 (order: 6, 524288 
bytes, linear)
[    3.377115] Sorting __ex_table...
[    3.418572] Built 1 zonelists, mobility grouping on.  Total pages: 130842
[    3.498806] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[    3.829203] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    3.911085] ftrace: allocating 33722 entries in 66 pages
[    4.049105] ftrace: allocated 66 pages with 2 groups
[    4.109349] trace event string verifier disabled
[    4.166478] rcu: Hierarchical RCU implementation.
[    4.221760] rcu:     RCU restricting CPUs from NR_CPUS=256 to 
nr_cpu_ids=1.
[    4.301772]  Rude variant of Tasks RCU enabled.
[    4.355797]  Tracing variant of Tasks RCU enabled.
[    4.412948] rcu: RCU calculated value of scheduler-enlistment delay 
is 25 jiffies.
[    4.503345] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    4.583436] RCU Tasks Rude: Setting shift to 0 and lim to 1 
rcu_task_cb_adjust=1 rcu_task_cpu_ids=1.
[    4.692458] RCU Tasks Trace: Setting shift to 0 and lim to 1 
rcu_task_cb_adjust=1 rcu_task_cpu_ids=1.
[    4.843441] NR_IRQS: 2048, nr_irqs: 2048, preallocated irqs: 1
[    4.912562] rcu: srcu_init: Setting srcu_struct sizes based on 
contention.
[    4.994443] clocksource: hbtick: mask: 0xffffffffffffffff max_cycles: 
0x148020aa9, max_idle_ns: 440795202069 ns
[    5.114943] clocksource: mult[b400012e] shift[24]
[    5.171049] clockevent: mult[16c16bf] shift[32]
[    5.225902] Console: colour dummy device 80x25
[    5.278113] printk: legacy console [tty0] enabled
[    5.334203] printk: legacy bootconsole [earlyprom0] disabled
[    0.000109] PROMLIB: Sun IEEE Boot Prom 'OBP 4.0.18 2002/05/23 18:22'
[    0.000185] PROMLIB: Root node compatible: sun4u
[    0.000514] Linux version 6.12.3-sparc64-smp 
([email protected]) (sparc64-linux-gnu-gcc-14 (Debian 
14.3.0-5) 14.3.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP Debian 
6.12.3-1+sparc64 (2025-08-28)
[    0.000821] printk: legacy bootconsole [earlyprom0] enabled
[    0.423989] ARCH: SUN4U
[    0.453155] Ethernet address: 00:03:ba:13:3c:25
[    0.507136] MM: PAGE_OFFSET is 0xfffff80000000000 (max_phys_bits == 40)
[    0.586072] MM: VMALLOC [0x0000000100000000 --> 0x0000060000000000]
[    0.660885] MM: VMEMMAP [0x0000060000000000 --> 0x00000c0000000000]
[    0.738209] Kernel: Using 5 locked TLB entries for main kernel image.
[    0.814304] Remapping the kernel...
[    0.816589] done.
[    1.109111] OF stdout device is: /pci@1f,0/isa@7/serial@0,3f8
[    1.176887] PROM: Built device tree with 77887 bytes of memory.
[    1.247889] Top of RAM: 0x6fec6000, Total RAM: 0x3fe34000
[    1.311964] Memory hole size: 768MB
[    1.363017] Allocated 16384 bytes for kernel page tables.
[    1.427122] Zone ranges:
[    1.456811]   Normal   [mem 0x0000000000000000-0x000000006fec5fff]
[    1.530581] Movable zone start for each node
[    1.581496] Early memory node ranges
[    1.624097]   node   0: [mem 0x0000000000000000-0x000000000fffffff]
[    1.698914]   node   0: [mem 0x0000000020000000-0x000000002fffffff]
[    1.773723]   node   0: [mem 0x0000000040000000-0x000000004fffffff]
[    1.848536]   node   0: [mem 0x0000000060000000-0x000000006effdfff]
[    1.923348]   node   0: [mem 0x000000006f000000-0x000000006fdfffff]
[    1.998161]   node   0: [mem 0x000000006fe80000-0x000000006feaffff]
[    2.072973]   node   0: [mem 0x000000006fec0000-0x000000006fec5fff]
[    2.147790] Initmem setup node 0 [mem 
0x0000000000000000-0x000000006fec5fff]
[    2.269414] On node 0, zone Normal: 32768 pages in unavailable ranges
[    2.370390] On node 0, zone Normal: 32768 pages in unavailable ranges
[    2.470618] On node 0, zone Normal: 32768 pages in unavailable ranges
[    2.547467] On node 0, zone Normal: 1 pages in unavailable ranges
[    2.619562] On node 0, zone Normal: 64 pages in unavailable ranges
[    2.693301] On node 0, zone Normal: 8 pages in unavailable ranges
[    2.778557] On node 0, zone Normal: 32925 pages in unavailable ranges
[    2.854669] Booting Linux...
[    2.888956] CPU CAPS: [flush,stbar,swap,muldiv,v9,mul32,div32,v8plus]
[    2.965841] CPU CAPS: [vis]
[    3.044551] percpu: Embedded 19 pages/cpu s117272 r8192 d30184 u4194304
[    3.129198] Kernel command line: root=/dev/sda4 ro
[    3.191403] Dentry cache hash table entries: 131072 (order: 7, 
1048576 bytes, linear)
[    3.287406] Inode-cache hash table entries: 65536 (order: 6, 524288 
bytes, linear)
[    3.377115] Sorting __ex_table...
[    3.418572] Built 1 zonelists, mobility grouping on.  Total pages: 130842
[    3.498806] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[    3.829203] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    3.911085] ftrace: allocating 33722 entries in 66 pages
[    4.049105] ftrace: allocated 66 pages with 2 groups
[    4.109349] trace event string verifier disabled
[    4.166478] rcu: Hierarchical RCU implementation.
[    4.221760] rcu:     RCU restricting CPUs from NR_CPUS=256 to 
nr_cpu_ids=1.
[    4.301772]  Rude variant of Tasks RCU enabled.
[    4.355797]  Tracing variant of Tasks RCU enabled.
[    4.412948] rcu: RCU calculated value of scheduler-enlistment delay 
is 25 jiffies.
[    4.503345] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    4.583436] RCU Tasks Rude: Setting shift to 0 and lim to 1 
rcu_task_cb_adjust=1 rcu_task_cpu_ids=1.
[    4.692458] RCU Tasks Trace: Setting shift to 0 and lim to 1 
rcu_task_cb_adjust=1 rcu_task_cpu_ids=1.
[    4.843441] NR_IRQS: 2048, nr_irqs: 2048, preallocated irqs: 1
[    4.912562] rcu: srcu_init: Setting srcu_struct sizes based on 
contention.
[    4.994443] clocksource: hbtick: mask: 0xffffffffffffffff max_cycles: 
0x148020aa9, max_idle_ns: 440795202069 ns
[    5.114943] clocksource: mult[b400012e] shift[24]
[    5.171049] clockevent: mult[16c16bf] shift[32]
[    5.225902] Console: colour dummy device 80x25
[    5.278113] printk: legacy console [tty0] enabled
[    5.334203] printk: legacy bootconsole [earlyprom0] disabled
[    5.481914] Calibrating delay using timer specific routine.. 11.15 
BogoMIPS (lpj=22313)
[    5.481971] pid_max: default: 32768 minimum: 301
[    5.497273] LSM: initializing 
lsm=capability,landlock,lockdown,yama,apparmor,tomoyo,bpf,ipe,ima,evm
[    5.504985] landlock: Up and running.
[    5.505029] Yama: disabled by default; enable with sysctl kernel.yama.*
[    5.505831] AppArmor: AppArmor initialized
[    5.505953] TOMOYO Linux initialized
[    5.506686] LSM support for eBPF active
[    5.513074] Mount-cache hash table entries: 2048 (order: 1, 16384 
bytes, linear)
[    5.513164] Mountpoint-cache hash table entries: 2048 (order: 1, 
16384 bytes, linear)
[    5.563981] rcu: Hierarchical SRCU implementation.
[    5.564051] rcu:     Max phase no-delay instances is 1000.
[    5.568775] smp: Bringing up secondary CPUs ...
[    5.568868] smp: Brought up 1 node, 1 CPU
[    5.569776] Memory: 996344K/1046736K available (11271K kernel code, 
1548K rwdata, 3192K rodata, 776K init, 656K bss, 47040K reserved, 0K 
cma-reserved)
[    5.573795] devtmpfs: initialized
[    5.580290] Performance events: No support for PMU type 'ultra12'
[    5.583897] clocksource: jiffies: mask: 0xffffffff max_cycles: 
0xffffffff, max_idle_ns: 7645041785100000 ns
[    5.584035] futex hash table entries: 256 (order: 1, 16384 bytes, linear)
[    5.601088] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    5.616877] audit: initializing netlink subsys (disabled)
[    5.619108] thermal_sys: Registered thermal governor 'fair_share'
[    5.619140] thermal_sys: Registered thermal governor 'bang_bang'
[    5.619197] thermal_sys: Registered thermal governor 'step_wise'
[    5.619233] thermal_sys: Registered thermal governor 'user_space'
[    5.619268] thermal_sys: Registered thermal governor 'power_allocator'
[    5.619736] audit: type=2000 audit(0.228:1): state=initialized 
audit_enabled=0 res=1
[    5.625051] pci@1f,0: PCI IO [io  0x1fe02000000-0x1fe02ffffff] offset 
1fe02000000
[    5.625198] pci@1f,0: PCI MEM [mem 0x1ff00000000-0x1ffffffffff] 
offset 1ff00000000
[    5.625263] pci@1f,0: SABRE PCI Bus Module ver[0:0]
[    5.625303] PCI: Scanning PBM /pci@1f,0
[    5.627460] sabre f0069d48: PCI host bridge to bus 0000:00
[    5.627557] pci_bus 0000:00: root bus resource [io 
0x1fe02000000-0x1fe02ffffff] (bus address [0x0000-0xffffff])
[    5.627622] pci_bus 0000:00: root bus resource [mem 
0x1ff00000000-0x1ffffffffff] (bus address [0x00000000-0xffffffff])
[    5.627685] pci_bus 0000:00: root bus resource [bus 00]
[    5.627913] pci 0000:00:07.0: [10b9:1533] type 00 class 0x060100
[    5.628659] pci 0000:00:03.0: [10b9:7101] type 00 class 0x000000
[    5.628763] pci 0000:00:03.0: quirk: [io 
0x1fe02002000-0x1fe0200203f] claimed by ali7101 ACPI
[    5.628830] pci 0000:00:03.0: quirk: [io 
0x1fe02004000-0x1fe0200401f] claimed by ali7101 SMB
[    5.629489] pci 0000:00:0c.0: [1282:9102] type 00 class 0x020000
[    5.629557] pci 0000:00:0c.0: reg 0x10: [io  0x1fe02010000-0x1fe020100ff]
[    5.629606] pci 0000:00:0c.0: reg 0x14: [mem 0x1ff00000000-0x1ff00001fff]
[    5.629653] pci 0000:00:0c.0: reg 0x30: [mem 0x1ff00040000-0x1ff0007ffff]
[    5.629750] pci 0000:00:0c.0: PME# supported from D3hot D3cold
[    5.630476] pci 0000:00:05.0: [1282:9102] type 00 class 0x020000
[    5.630542] pci 0000:00:05.0: reg 0x10: [io  0x1fe02010100-0x1fe020101ff]
[    5.630592] pci 0000:00:05.0: reg 0x14: [mem 0x1ff00002000-0x1ff00003fff]
[    5.630639] pci 0000:00:05.0: reg 0x30: [mem 0x1ff00080000-0x1ff000bffff]
[    5.630733] pci 0000:00:05.0: PME# supported from D3hot D3cold
[    5.631268] pci 0000:00:0a.0: [10b9:5237] type 00 class 0x0c0310
[    5.631328] pci 0000:00:0a.0: reg 0x10: [mem 0x1ff01000000-0x1ff01ffffff]
[    5.632021] pci 0000:00:0d.0: [10b9:5229] type 00 class 0x0101ff
[    5.632091] pci 0000:00:0d.0: reg 0x10: [io  0x1fe02010200-0x1fe02010207]
[    5.632142] pci 0000:00:0d.0: reg 0x14: [io  0x1fe02010218-0x1fe0201021f]
[    5.632187] pci 0000:00:0d.0: reg 0x18: [io  0x1fe02010210-0x1fe02010217]
[    5.632234] pci 0000:00:0d.0: reg 0x1c: [io  0x1fe02010208-0x1fe0201020f]
[    5.632280] pci 0000:00:0d.0: reg 0x20: [io  0x1fe02010220-0x1fe0201022f]
[    5.749788] HugeTLB: registered 64.0 KiB page size, pre-allocated 0 pages
[    5.749878] HugeTLB: 0 KiB vmemmap can be freed for a 64.0 KiB page
[    5.749921] HugeTLB: registered 8.00 MiB page size, pre-allocated 0 pages
[    5.749956] HugeTLB: 0 KiB vmemmap can be freed for a 8.00 MiB page
[    5.749995] HugeTLB: registered 256 MiB page size, pre-allocated 0 pages
[    5.750030] HugeTLB: 0 KiB vmemmap can be freed for a 256 MiB page
[    5.750070] HugeTLB: registered 2.00 GiB page size, pre-allocated 0 pages
[    5.750106] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 GiB page
[    5.865697] iommu: Default domain type: Translated
[    5.865784] iommu: DMA domain TLB invalidation policy: strict mode
[    5.866444] pps_core: LinuxPPS API ver. 1 registered
[    5.866502] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 
Rodolfo Giometti <[email protected]>
[    5.866660] PTP clock support registered
[    5.870600] NetLabel: Initializing
[    5.870681] NetLabel:  domain hash size = 128
[    5.870713] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    5.870944] NetLabel:  unlabeled traffic allowed by default
[    5.871558] vgaarb: loaded
[    5.872008] /pci@1f,0/isa@7/rtc@0,70: RTC regs at 0x1fe02000070
[    5.874402] clocksource: Switched to clocksource hbtick
[    5.901402] VFS: Disk quotas dquot_6.6.0
[    5.902811] VFS: Dquot-cache hash table entries: 1024 (order 0, 8192 
bytes)
[    5.906157] AppArmor: AppArmor Filesystem Enabled
[    5.940784] NET: Registered PF_INET protocol family
[    5.941554] IP idents hash table entries: 16384 (order: 4, 131072 
bytes, linear)
[    5.973045] tcp_listen_portaddr_hash hash table entries: 512 (order: 
0, 8192 bytes, linear)
[    5.973642] Table-perturb hash table entries: 65536 (order: 5, 262144 
bytes, linear)
[    5.976146] TCP established hash table entries: 8192 (order: 3, 65536 
bytes, linear)
[    5.976981] TCP bind hash table entries: 8192 (order: 5, 262144 
bytes, linear)
[    5.978606] TCP: Hash tables configured (established 8192 bind 8192)
[    5.980827] MPTCP token hash table entries: 1024 (order: 1, 24576 
bytes, linear)
[    5.981380] UDP hash table entries: 512 (order: 1, 16384 bytes, linear)
[    5.981560] UDP-Lite hash table entries: 512 (order: 1, 16384 bytes, 
linear)
[    5.983949] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    5.984141] NET: Registered PF_XDP protocol family
[    5.984367] pci 0000:00:0a.0: enabling device (0000 -> 0002)
[    5.984462] PCI: CLS 0 bytes, default 64
[    5.985571] Trying to unpack rootfs image as initramfs...
[    5.987691] power: Control reg at 1fe02002000
[    5.994191] Initialise system trusted keyrings
[    5.999251] Key type blacklist registered
[    6.003883] workingset: timestamp_bits=46 max_order=17 bucket_order=0
[    6.004116] zbud: loaded
[    6.022019] fuse: init (API version 7.41)
[    6.028200] integrity: Platform Keyring initialized
[    6.028337] Key type asymmetric registered
[    6.028382] Asymmetric key parser 'x509' registered
[    6.376467] Freeing initrd memory: 2784K
[    6.426965] Block layer SCSI generic (bsg) driver version 0.4 loaded 
(major 249)
[    6.427612] io scheduler mq-deadline registered
[    6.449127] ledtrig-cpu: registered to indicate activity on CPUs
[    6.453359] f0076e0c: ttyS0 at MMIO 0x1fe020003f8 (irq = 7, base_baud 
= 115387) is a 16550A
[    6.453455] Console: ttyS0 (SU)
[    6.453555] printk: legacy console [ttyS0] enabled
[   20.386786] f0078af8: ttyS1 at MMIO 0x1fe020002e8 (irq = 7, base_baud 
= 115387) is a 16550A
[   20.506624] mousedev: PS/2 mouse device common for all mice
[   20.581224] rtc_cmos rtc_cmos: error -ENXIO: IRQ index 0 not found
[   20.663714] rtc_cmos rtc_cmos: registered as rtc0
[   20.725959] rtc_cmos rtc_cmos: setting system clock to 
2025-09-05T08:19:31 UTC (1757060371)
[   20.836297] rtc_cmos rtc_cmos: no alarms, 114 bytes nvram
[   20.912243] NET: Registered PF_INET6 protocol family
[   21.015192] Segment Routing with IPv6
[   21.063893] In-situ OAM (IOAM) with IPv6
[   21.115871] mip6: Mobile IPv6
[   21.155065] NET: Registered PF_PACKET protocol family
[   21.222018] mpls_gso: MPLS GSO support
[   21.299778] registered taskstats version 1
[   21.354866] Loading compiled-in X.509 certificates
[   22.090317] Loaded X.509 cert 'Build time autogenerated kernel key: 
0fe3d2b2167f24b5eb98e163b77815e416ce643c'
[   22.258681] Key type .fscrypt registered
[   22.310308] Key type fscrypt-provisioning registered
[   22.517275] Key type encrypted registered
[   22.570298] AppArmor: AppArmor sha256 policy hashing enabled
[   22.645010] ima: No TPM chip found, activating TPM-bypass!
[   22.717315] ima: Allocated hash algorithm: sha256
[   22.779376] ima: No architecture policies found
[   22.839159] evm: Initialising EVM extended attributes:
[   22.906705] evm: security.selinux
[   22.950207] evm: security.SMACK64 (disabled)
[   23.006350] evm: security.SMACK64EXEC (disabled)
[   23.067009] evm: security.SMACK64TRANSMUTE (disabled)
[   23.133397] evm: security.SMACK64MMAP (disabled)
[   23.194084] evm: security.apparmor
[   23.238790] evm: security.ima
[   23.277724] evm: security.capability
[   23.324689] evm: HMAC attrs: 0x1
[   23.399706] This architecture does not have kernel memory protection.
[   23.574623] Run /init as init process
Loading, please wait...
/scripts/init-top/udev: line 14: can't create /sys/kernel/uevent_helper: 
Permission denied
Begin: Loading essential drivers ... [   24.249846] SCSI subsystem 
initialized
[   24.748185] pata_ali 0000:00:0d.0: enabling device (0004 -> 0005)
[   24.919743] scsi host0: pata_ali
[   25.015545] scsi host1: pata_ali
[   25.099456] ata1: PATA max UDMA/66 cmd 0x1fe02010200 ctl 
0x1fe02010218 bmdma 0x1fe02010220 irq 12 lpm-pol 0
[   25.227694] ata2: PATA max UDMA/66 cmd 0x1fe02010210 ctl 
0x1fe02010208 bmdma 0x1fe02010228 irq 12 lpm-pol 0
[   25.692132] ata1.00: ATA-5: ST340016A, 3.10, max UDMA/100
[   25.763206] ata1.00: 78165360 sectors, multi 0: LBA
[   25.963227] scsi 0:0:0:0: Direct-Access     ATA      ST340016A 
3.10 PQ: 0 ANSI: 5
[   26.411644] ata2.00: ATA-6: ST340014A, 8.01, max UDMA/100
[   26.482687] ata2.00: 78165360 sectors, multi 0: LBA48
[   26.708068] scsi 1:0:0:0: Direct-Access     ATA      ST340014A 
8.01 PQ: 0 ANSI: 5
modprobe: module platform:f0069d48 not found in modules.dep
modprobe: module platform:root not found in modules.dep
done.
[   27.083384] process '/bin/sleep' started with executable stack
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top 
... done.
Begin: Waiting for root file system ... done.
Gave up waiting for root device.  Common problems:
  - Boot args (cat /proc/cmdline)
    - Check rootdelay= (did the system wait long enough?)
    - Check root= (did the system wait for the right device?)
  - Missing modules (cat /proc/modules; ls /dev)
ALERT!  /dev/sda4 does not exist.  Dropping to a shell!
modprobe: module ehci-hcd not found in modules.dep
modprobe: module uhci-hcd not found in modules.dep
modprobe: module ohci-hcd not found in modules.dep
modprobe: module usbhid not found in modules.dep


BusyBox v1.20.2 (Debian 1:1.20.0-7) built-in shell (ash)
Enter 'help' for a list of built-in commands.

/bin/sh: can't access tty; job control turned off
(initramfs)


Perhaps I need to recreate the initrd again with a LOT more modules.
I tried to pare it down to just the modules needed but perhaps this
is wrong.