Messages in this thread | | | Date | Tue, 3 May 2005 19:05:32 -0400 | From | Wakko Warner <> | Subject | Re: zImage on 2.6? |
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Randy.Dunlap wrote: > On Tue, 3 May 2005 18:19:22 -0400 Wakko Warner wrote: > > | Randy.Dunlap wrote: > | > On Tue, 3 May 2005 12:33:43 -0400 Wakko Warner wrote: > | > | Yes, I do recall it says "System is 724k". zImage failes. bzImage says > | > | 724k as well and succeeds. > | > > | > The image size needs to be <= 0x7f000 (520192 bytes, 508 KB). > | > > | > (No, I don't know why, just that this is what is being > | > enforced.) > | > > | > Just cut more out of the kernel image... > | > | Any suggestions? All that I know of that is modularizable is a module, > | except for keyboard, ext2, unix sockets, ramdisk+initrd. Some of the options I need since > | this is supposed to support all relevent hardware that we use where I work. > | (all scsi,ide,sata,raid cards,ethernet cards that we have) > > Are those (mostly) modular?
Yes.
> Is this supposed to be a kernel that is used on a regular basis, > not just a temporary quick boot thing?
I'd say it would be used frequently, but short lived.
> You want one kernel that handles many configurations but fits > in < 510 KB? That is aggressive. :)
=) hehe, if I can.
> I think of this as being a custom kernel, but it sounds > like you want a very general-purpose (small) one.
Yes, very custom.
> | Hmm, I did find one I forgot. CONFIG_MII. > | > | EXPERIMENTAL=y > | CLEAN_COMPILE=y > | BROKEN_ON_SMP=y > > Do you need some drivers etc. that are EXPERIMENTAL or BROKEN? > Just curious.
Actually, not sure, I've always enabled that.
> | ACPI=y > | ACPI_BOOT=y > | ACPI_INTERPRETER=y > | ACPI_BUS=y > | ACPI_EC=y > | ACPI_POWER=y > | ACPI_PCI=y > | ACPI_SYSTEM=y > so some systems may need ACPI ?
I wanted to beable to query battery life on laptops that I use this on. I can remove it I think, all ACPI that can be a module is. I don't think it works that way though. I'll have to check it on a laptop.
> | ISA=y > | CARDBUS=y > | PCMCIA_PROBE=y > some systems have ISA? some are PCMCIA/CardBus?
Yes, however, pcmcia is modular.
> | PNP=y > | ISAPNP=y > and ISA PNP? :(
We have some old ISA cards that support PNP (3c509 comes to mind)
> | SCSI_PROC_FS=y > drop this one > > | AIC7XXX_DEBUG_ENABLE=y > | AIC7XXX_REG_PRETTY_PRINT=y > | AIC79XX_DEBUG_ENABLE=y > | AIC79XX_REG_PRETTY_PRINT=y > drop these.
All SCSI is a module, these I assume are just capabilites in the modules.
> | SOUND_GAMEPORT=y > drop.
Couldn't find a configure option to disable this. It caught my eye too. I don't have gameport in input configured.
> | VT=y > | VT_CONSOLE=y > | HW_CONSOLE=y > | VGA_CONSOLE=y > | DUMMY_CONSOLE=y > drop that ^^^^^
All of those or DUMMY_CONSOLE?
> | USB_ARCH_HAS_HCD=y > | USB_ARCH_HAS_OHCI=y > | USB_DEVICEFS=y > | USB_OHCI_LITTLE_ENDIAN=y > | USB_STORAGE_FREECOM=y > | USB_STORAGE_ISD200=y > | USB_STORAGE_DPCM=y > | USB_STORAGE_USBAT=y > | USB_STORAGE_SDDR09=y > | USB_STORAGE_SDDR55=y > | USB_STORAGE_JUMPSHOT=y > | USB_HIDINPUT=y > | USB_ALI_M5632=y > | USB_AN2720=y > | USB_BELKIN=y > | USB_GENESYS=y > | USB_NET1080=y > | USB_PL2301=y > | USB_KC2190=y > | USB_ARMLINUX=y > | USB_EPSON2888=y > | USB_ZAURUS=y > | USB_CDCETHER=y > | USB_AX8817X=y > | EXT2_FS=y > | JOLIET=y > | UDF_NLS=y > | NTFS_RW=y > drop NTFS (you didn't list it as a requirement :)
All USB are modules, NTFS is a module (yes I need it)
> | PROC_FS=y > | SYSFS=y > | TMPFS=y > | RAMFS=y > | NFS_V3=y > | LOCKD_V4=y > | MSDOS_PARTITION=y > | DEBUG_KERNEL=y > | MAGIC_SYSRQ=y > | CRYPTO=y > drop ^^^^^
Crypto is required by one of the wireless drivers (MADWIFI I believe)
> so what's the problem with using a bzImage kernel?
Nothing, I wanted to see if zImage would be smaller. As others have stated, it's not. However, I did not know this.
I do appriate your time in helping me. I'm real close to getting this on a single floppy (if I formatted to 1.7mb, it would be easy. I know some of our systems that I would need this on can't use these). One goal is to use the same kernel for all booting.
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