Sxetika me to compile toy kernel

[Yiannis Galanomatis]

Palantzas Thodoris wrote:

>    Egw thelw na kanw mia genikh erwthsh ontas arxarios : Otan ginetai to compile toy kernel kai anaferetai oti mia epilogh yparxei
> kai ws module (p.x. h yposthriksh enos SCSI controller) ti ennoei ? Dhl. poia h diafora toy na dhlwthei kanonika me yes 'h me (ws
> module) ?

Modules einai kommatia tou pyrhna pou den enswmatwnontai me ton kormo, alla
energopoiountai kata voulhsh opoiadhpote stigmh o xrhsths 9elhsei.
Opos katalavaineis, ta modules den ektelountai kata to arxiko fortwma tou pyrhna,
opote kapoia xarakthristika tou pyrhna DEN PREPEI na ginoun compile san modules.
Px egw exe EIDE disko kai SCSI cdrom. Ekana to EIDE support compile ston
kentriko pyrhna, eidallws den 9a borousa na kanw boot. Omws ekana
compile san modules ton scsi controller. Ean parw SCSI disko, tote 9a
valw to scsi controller ston pyrhna kai oxi san module, dioti kata thn ekkinhsh
o pyrhnas den 9a boresei na dei ton scsi controller.
Paradeigmata xarakthristikwn tou controller pou DEN prepei na kaneis
compile san modules einai:
1) ext2fs - An to kaneis san module den 9a boreis na kaneis mount to root directory kata
thn ekkinhsh, opote 9a prokaleseis kernel panic.
2) ide support an exeis ide sklhro
3) scsi support an exeis scsi slhro
k.a.

Ta modules energopoiounatai / apainergopoiountai aftomata otan xreiazetai apo
enan daemon, ton kmod an 9ymamai kala.
An 9es ena module na einai monima fortwmeno (9a to 9es ean exeis karta hxou)
dineis "insmod <module_name>". Gia na deis ta modules pou trexoun dwse "lsmod".
Gia afairesh module "rmmod <module_name>"

Xrhshmopoiontas modules meiwneis to mege9os tou pyrhna ay3anwntas thn
taxythta tou, meiwnontas thn apaitoumenh mnymh, klp, klp.
H entolh "make zImage" 9a apotyxei ean den xrhshmopoihseis ka9olou modules,
logo mege9ous tou pyrhna. An epimeneis na exeis megalo pyrhna, dwse "make bzImage".

Pantws 9a einai kalytera na diavazeis ta sxetika howtos, einai panta plhrestera kai
akrivestera. Einai kalo otan exeis ena provlhma na prospa9eis prwta na vreis
voh9eia apo ta howtos.



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