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Diffstat (limited to 'faq/sata_disk_drives/discussion.mdwn')
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1 files changed, 91 insertions, 1 deletions
diff --git a/faq/sata_disk_drives/discussion.mdwn b/faq/sata_disk_drives/discussion.mdwn index d05566b6..0b56f235 100644 --- a/faq/sata_disk_drives/discussion.mdwn +++ b/faq/sata_disk_drives/discussion.mdwn @@ -1,4 +1,4 @@ -[[!meta copyright="Copyright © 2013 Free Software Foundation, Inc."]] +[[!meta copyright="Copyright © 2013, 2014 Free Software Foundation, Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this @@ -256,3 +256,93 @@ License|/fdl]]."]]"""]] <teythoon> youpi: hm, I think my board has no ahci controller, linux uses the sata_via module to talk to it :/ <youpi> ah :/ + + +# IRC, freenode, #hurd, 2014-02-05 + + <braunr> teythoon: i don't completely trust the driver + <teythoon> oh ? + <braunr> it doesn't work on my laptop, and i had a failure once on a "big" + partition of 128G + <teythoon> hm + <teythoon> my hardware does not implement ahci, but in qemu it works fine + for me + <braunr> well qemu is the only supported "hardware" + <teythoon> but then my partitions are not that big + <youpi> braunr: no, it does work on my laptop too + <braunr> ok + + +# IRC, freenode, #hurd, 2014-02-12 + + <braunr> youpi: hum, sorry to ask but how do you use qemu to provide sata ? + <youpi> braunr: there's an important trick: getting it on another IRQ than + the eth0 board :/ + <youpi> -device ahci,id=ahci1 + <youpi> for nothing + <youpi> -device ahci,id=ahci2 + <youpi> -drive id=root,file=/dev/${HDA}7,cache=writeback,if=none + <youpi> -device ide-drive,drive=root,bus=ahci2.1 + <braunr> ok that's close enough to what i have + <braunr> but + <braunr> i'm using /dev/sda as the backend + <braunr> instead of a regular file + <braunr> sda already containing a regular debian linux system + <braunr> and grub2 can't boot because it seems to fail reading the + partition table + <braunr> it works perfectly when accessing it as an ide disk though + <braunr> youpi: do you see any reason why grub would fail with ahci ? + <braunr> also, why ahci2._1_ instead of 0 ? + <braunr> youpi: fyi, the cd installer always booted fine here, both on my + workstation and my laptop, i did about 50 tries on each machine + <braunr> the graphical mode doesn't seem to work though + <braunr> youpi: fyi2 the grub related issue i'm having is + https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692249 + <youpi> I'm using .1 because I have a /boot .0 before the / .1 :) + <braunr> humm + <braunr> you have two drives ? + <youpi> braunr: (cd installer): you mean, even in semi-graphical mode? + <braunr> one for /boot and the other for / ? + <youpi> I have 3 actually :) + <braunr> youpi: no, xorg + <braunr> ok i se + <braunr> see + <youpi> (cd installer) I'm talking about the working ones :) + <youpi> I know xorg does not boot + <braunr> ok + <braunr> so apparently, adding ,boot=on to the -drive parameter did the + trick + <youpi> k + <braunr> and now, i have a hurd system running from /dev/sda5 (the real + disk) in qemu + <youpi> for the pseudo-graphical console, I guess his monitor is too dumb + to be able to display 640x400 + <braunr> possible + <youpi> most probably because no OS uses that any more nowadays :/ + <youpi> (and that won't get better) + <braunr> so now i can debug ahci on my laptop using that :) + + <braunr> youpi: is there a known limit to the size of an ahci drive in the + gnumach driver ? + <youpi> in the driver itself, it's simply lba48 + <youpi> but the mach interface uses 32bit sector number + <youpi> thus 2TB limit + <braunr> that's plenty :) + <youpi> I have a 2TB drive :) + <youpi> so it won't be plenty for long + <braunr> 2TB for your hurd system ? + <youpi> no, for my backups etc. + <braunr> i meant plenty for our hurd instances + <youpi> but there could have been a hurd vm there + <youpi> and not necesseraly below 2TiB + + <braunr> hm, the installer doesn't detect existing partitions on an ahci + drive :/ + + +## IRC, freenode, #hurd, 2014-02-13 + + <braunr> youpi: looks like linux has trouble handling my ahci drive without + ioapic/msi + <braunr> no wonder gnumach can't either + <youpi> erf |