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BaNdit400
Tux's lil' helper
Joined: 23 Nov 2004
Posts: 93
Location: Italy, Paliano (FR)
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 Posted: Fri May 05, 2006 10:06 am Post subject: [conf][RISOLTO] Aggiunta moduli |
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Ogni tanto posto per qualche problema assurdo: abbiate pazienza... 
All'atto del boot vengono caricati i segueni moduli da un kernel preparato con genkernel...
| Code: |
» Loading modules
: Scanning for ehci-hcd...usbcore, ehci-hcd loaded.
: Scanning for hid...hid loaded.
: Scanning for usb-storage...usb-storage loaded.
: Scanning for ehci-hcd...uhci-hcd loaded.
: Scanning for ohci-hcd...ohci-hcd loaded.
: Scanning for s1811-hcd...s1811-hcd loaded.
: Scanning for ieee1394...ieee1394 loaded.
: Scanning for ohci1394...ohci1394 loaded.
: Scanning for sbp2...sbp2 loaded.
: Scanning for sata_promise...libata, sata_promise loaded.
: Scanning for sata_sil...sata_sil loaded.
: Scanning for sata_si124...sata_si124 loaded.
: Scanning for sata_suw...sata_suw loaded.
: Scanning for sata_uia...sata_uia loaded.
: Scanning for sata_nu...sata_nu loaded.
: Scanning for sata_sx4...sata_sx4 loaded.
: Scanning for sata_sis...sata_sis loaded.
: Scanning for sata_uli...sata_uli loaded.
: Scanning for sata_usc...sata_usc loaded.
: Scanning for sata_gstor...sata_gstor loaded.
: Scanning for ahci...ahci loaded.
: Scanning for ata_piix...ata_piix loaded.
: Scanning for sata_mu...sata_mu loaded.
: Scanning for pdc_adma...pdc_adma loaded.
: Scanning for dm-mod...dm-mod loaded.
: Scanning for dm-mirror...dm-mirror loaded. |
...che ovviamente, in caso di controller SATA, consentono la fase di boot anche da questi dispositivi. Disposizioni ''superiori'' mi impongono di aggiungere a questa serie di moduli altri moduli SATA e SCSI per permettere il boot anche con altri controller. Ignorando, volutamente, il senso di una simile richiesta (basterebbe ricompilare il kernel con i driver richiesti non come moduli) potreste gentilmente delucidarmi su come inserire tra questi elencati anche i moduli dei driver per l'utilizzo di alcuni controller SCSI (già compilati come moduli all'atto della preparazione del kernel)?
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Gianluca ''BaNdit400''
Last edited by BaNdit400 on Fri May 05, 2006 8:35 pm; edited 1 time in total |
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morellik
l33t
Joined: 03 Feb 2003
Posts: 629
Location: Firenze
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| Posted: Fri May 05, 2006 10:21 am Post subject: |
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Premetto che non ho mai usato genkernel. Ma probabilmente per moduli che devono fare
accesso a parti hardware come controller SCSI, dovresti usare mkinitrd (emerge mkinitrd) per
creare un file initrd e porlo in /boot. Quindi in grub.conf o lilo.conf inserisci una riga,
dopo quella che definisce il caricamento del kernel, del tipo:
| Code: |
title=Gentoo
root (hd0,3)
kernel /boot/vmlinuz root=/dev/hda3
initrd /boot/vmlinuz.inirtd
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Parlo da ignorante... 
Ciauz
morellik |
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BaNdit400
Tux's lil' helper
Joined: 23 Nov 2004
Posts: 93
Location: Italy, Paliano (FR)
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| Posted: Fri May 05, 2006 12:35 pm Post subject: |
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Forse è da fare come dici te, ma volevo sapere se è possibile seguire una procedura basata su genkernel, se è solo un problema di configurazione o quant'altro. Sono nelle vosre mani...
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Gianluca ''BaNdit400'' |
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Luca89
Advocate
Joined: 27 Apr 2005
Posts: 2107
Location: Agrigento (Italy)
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| Posted: Fri May 05, 2006 12:50 pm Post subject: |
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dovresti passare il parametro "doscsi" mentre booti il kernel oppure modificare manualmente il linuxrc dell'initramfs.
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BaNdit400
Tux's lil' helper
Joined: 23 Nov 2004
Posts: 93
Location: Italy, Paliano (FR)
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| Posted: Fri May 05, 2006 1:19 pm Post subject: |
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Provato e notifico che il parametro doscsi è quanto stessi cercando.
Le domande, a questo punto, sorgono spontanee:
(1) Quali parametri di questo genere è possibile passare al kernel e/o dove trovarne documentazione
(2) Volendo modificare lo script linuxrc (immagino sia /usr/share/genkernel/generic/linuxrc), cosa doveri modificaer di preciso?
Attendo prima di inserire il TAG risolto... 
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Gianluca ''BaNdit400'' |
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Luca89
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Joined: 27 Apr 2005
Posts: 2107
Location: Agrigento (Italy)
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| Posted: Fri May 05, 2006 2:33 pm Post subject: |
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| BaNdit400 wrote: | | (1) Quali parametri di questo genere è possibile passare al kernel e/o dove trovarne documentazione |
La documentazione la trovi nel readme all'interno del livecd gentoo, il kenrel del livecd è compilato pure con genkernel.
| Quote: | | (2) Volendo modificare lo script linuxrc (immagino sia /usr/share/genkernel/generic/linuxrc), cosa doveri modificare di preciso? |
Non saprei, non ci ho mai messo mano.
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.:chrome:.
Advocate
Joined: 19 Feb 2005
Posts: 4588
Location: Brescia, Italy
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| Posted: Fri May 05, 2006 6:24 pm Post subject: |
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| BaNdit400 wrote: | Provato e notifico che il parametro doscsi è quanto stessi cercando.
Le domande, a questo punto, sorgono spontanee:
(1) Quali parametri di questo genere è possibile passare al kernel e/o dove trovarne documentazione
(2) Volendo modificare lo script linuxrc (immagino sia /usr/share/genkernel/generic/linuxrc), cosa doveri modificaer di preciso? |
in realtà non si tratta di parametri per il kernel, ma per lo script linuxrc presente nell'initramfs di gentoo.
dove si possa trovare documentazione specifica non ne ho idea. probabilmente dove è mantenuto tale script e/o genkernel.
personalmente sarei tentato di smembrare un initramfs alla ricerca dello script e guardarmi come è fatto, a scanso di equivoci.
la questione è comunque aggirabile includendo "built-in" nel kernel i moduli vitali per il funzionamento della macchina. secondo me è una soluzione molto più sensata che farli caricare dall'initrd/initramfs |
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BaNdit400
Tux's lil' helper
Joined: 23 Nov 2004
Posts: 93
Location: Italy, Paliano (FR)
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| Posted: Fri May 05, 2006 8:33 pm Post subject: |
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| Luca89 wrote: | | BaNdit400 wrote: | | (1) Quali parametri di questo genere è possibile passare al kernel e/o dove trovarne documentazione |
La documentazione la trovi nel readme all'interno del livecd gentoo, il kenrel del livecd è compilato pure con genkernel. |
Esatto, ottima informazione...
| Code: | This file lists the possible command line options that can be used to tweak
the boot process of this CD. This lists the Gentoo-specific options, along
with a few options that are built-in to the kernel, but that have been proven
very useful to our users. Also, all options that start with "do" have a "no"
inverse, that does the opposite. For example, "doscsi" enables SCSI support
in the initial ramdisk boot, while "noscsi" disables it.
Hardware options:
acpi=on This loads support for ACPI and also causes the acpid daemon to
be started by the CD on boot. This is only needed if your
system requires ACPI to function properly. This is not required
for Hyperthreading support.
acpi=off Completely disables ACPI. This is useful on some older systems,
and is also a requirement for using APM. This will disable any
Hyperthreading support of your processor.
console=X This sets up serial console access for the CD. The first
option is the device, usually ttyS0 on x86, followed by any
connection options, which are comma separated. The default
options are 9600,8,n,1.
dmraid=X This allows for passing options to the device-mapper RAID
subsystem. Options should be encapsulated in quotes.
doapm This loads APM driver support. This requires you to also use
acpi=off.
dobladecenter This adds some extra pauses into the boot process for the slow
USB CDROM of the IBM BladeCenter.
dopcmcia This loads support for PCMCIA and Cardbus hardware and also
causes the pcmcia cardmgr to be started by the CD on boot.
This is only required when booting from a PCMCIA/Cardbus device.
doscsi This loads support for most SCSI controllers. This is also a
requirement for booting most USB devices, as they use the SCSI
subsystem of the kernel.
hda=stroke This allows you to partition the whole hard disk even when your
BIOS is unable to handle large disks. This option is only used
on machines with an older BIOS. Replace hda with the device
that is requiring this option.
ide=nodma This forces the disabling of DMA in the kernel and is required
by some IDE chipsets and also by some CDROM drives. If your
system is having trouble reading from your IDE CDROM, try this
option. This also disables the default hdparm settings from
being executed.
noapic This disables the Advanced Programmable Interrupt Controller
that is present on newer motherboards. It has been known to
cause some problems on older hardware.
nodetect This disables all of the autodetection done by the CD, including
device autodetection and DHCP probing. This is useful for doing
debugging of a failing CD or driver.
nodhcp This disables DHCP probing on detected network cards. This is
useful on networks with only static addresses.
nodmraid Disables support for device-mapper RAID, such as that used for
on-board IDE/SATA RAID controllers.
nofirewire This disables the loading of Firewire modules. This should only
be necessary if your Firewire hardware is causing a problem with
booting the CD.
nogpm This diables gpm console mouse support.
nohotplug This disables the loading of the hotplug and coldplug init
scripts at boot. This is useful for doing debugging of a
failing CD or driver.
nokeymap This disables the keymap selection used to select non-US
keyboard layouts.
nolapic This disables the local APIC on Uniprocessor kernels.
nosata This disables the loading of Serial ATA modules. This is useful
if your system is having problems with the SATA subsystem.
nosmp This disables SMP, or Symmetric Multiprocessing, on SMP-enabled
kernels. This is useful for debugging SMP-related issues with
certain drivers and motherboards.
nosound This disables sound support and volume setting. This is useful
for systems where sound support causes problems.
nousb This disables the autoloading of USB modules. This is useful
for debugging USB issues.
Volume/Device Management:
dodevfs This enables the deprecated device filesystem on 2.6 systems.
You will also need to use noudev for this to take effect.
Since devfs is the only option with a 2.4 kernel, this option
has no effect if booting a 2.4 kernel.
doevms2 This enables support for IBM's pluggable EVMS, or Enterprise
Volume Management System. This is not safe to use with lvm2.
dolvm2 This enables support for Linux's Logical Volume Management.
This is not safe to use with evms2.
noudev This disables udev support on 2.6 kernels. This option requires
that dodevfs is used. Since udev is not an option for 2.4
kernels, this options has no effect if booting a 2.4 kernel.
unionfs Enables support for Unionfs on supported CD images. This will
create a writable Unionfs overlay in a tmpfs, allowing you to
change any file on the CD.
unionfs=X Enables support for Unionfs on supported CD images. This will
create a writable Unionfs overlay on the device you specify.
The device must be formatted with a filesystem recognized and
writable by the kernel.
Other options:
debug Enables debugging code. This might get messy, as it displays
a lot of data to the screen.
docache This caches the entire runtime portion of the CD into RAM, which
allows you to umount /mnt/cdrom and mount another CDROM. This
option requires that you have at least twice as much available
RAM as the size of the CD.
doload=X This causes the initial ramdisk to load any module listed, as
well as dependencies. Replace X with the module name. Multiple
modules can be specified by a comma-separated list.
noload=X This causes the initial ramdisk to skip the loading of a
specific module that may be causing a problem. Syntax matches
that of doload.
nox This causes an X-enabled LiveCD to not automatically start X,
but rather, to drop to the command line instead.
scandelay This causes the CD to pause for 10 seconds during certain
portions the boot process to allow for devices that are slow to
initialize to be ready for use.
scandelay=X This allows you to specify a given delay, in seconds, to be
added to certain portions of the boot process to allow for
devices that are slow to initialize to be ready for use.
Replace X with the number of seconds to pause. |
| k.gothmog wrote: | | ...personalmente sarei tentato di smembrare un initramfs alla ricerca dello script e guardarmi come è fatto, a scanso di equivoci... |
...ho provato, ma ho ottenuto solo delle cartelle vuote...
| Code: | | gunzip initramfs.gz && cpio -iv < initramfs |
...te come faresti?
Aggiungo comunque il tag [RISOLTO]: queste sono più curiosità che argomentazioni legate al mio (ex)problema...
Wide Open
Gianluca ''BaNdit400'' |
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