[SOLVED] (sortof) : 2.6.30-arch PCI Latency anyone?

Hi,
Alsa sound keeps stuttering (or clicking), so does pulseaudio.
Apparently it's due to pci latency?
It may be a long shot (lol) but does anybody have any experience of this?.
How do you adjust this (reduce latency) to end the stutter.
By the way it only happens since I updated to this kernel.
Edit:
Okay in case this helps anyone.
I could't really deal with latency so I did two things one of which worked (probably the second one)
1. I installed asio audio drivers from repo.
2. I installed jack audio server and the qt front end qjackCtl.
I don't really know how to use jack yet but I connect to the jack server via vlc then it plays the music and guess what?
NO STUTTERING Wahaay
Last edited by tricky (2009-07-01 08:49:52)

I disable this option in my config and delated src and pkg dir and still the same name
Kernel from repo don't have this issue.
Last edited by SpeedVin (2009-09-11 20:49:13)

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    insmod gfxterm
    insmod vbe
    if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
    fi
    fi
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    set locale_dir=($root)/grub/locale
    set lang=en
    insmod gettext
    if [ ${recordfail} = 1 ]; then
    set timeout=-1
    else
    set timeout=10
    fi
    ### END /etc/grub.d/00_header ###
    ### BEGIN /etc/grub.d/05_debian_theme ###
    set menu_color_normal=white/black
    set menu_color_highlight=black/light-gray
    ### END /etc/grub.d/05_debian_theme ###
    ### BEGIN /etc/grub.d/10_linux ###
    menuentry 'Ubuntu, with Linux 2.6.32-26-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    linux /vmlinuz-2.6.32-26-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro quiet splash
    initrd /initrd.img-2.6.32-26-generic
    menuentry 'Ubuntu, with Linux 2.6.32-26-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu -
    -class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    echo 'Loading Linux 2.6.32-26-generic ...'
    linux /vmlinuz-2.6.32-26-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro single
    echo 'Loading initial ramdisk ...'
    initrd /initrd.img-2.6.32-26-generic
    menuentry 'Ubuntu, with Linux 2.6.32-24-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    linux /vmlinuz-2.6.32-24-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro quiet splash
    initrd /initrd.img-2.6.32-24-generic
    menuentry 'Ubuntu, with Linux 2.6.32-24-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu -
    -class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    echo 'Loading Linux 2.6.32-24-generic ...'
    linux /vmlinuz-2.6.32-24-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro single
    echo 'Loading initial ramdisk ...'
    initrd /initrd.img-2.6.32-24-generic
    menuentry 'Ubuntu, with Linux 2.6.32-23-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    linux /vmlinuz-2.6.32-23-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro quiet splash
    initrd /initrd.img-2.6.32-23-generic
    menuentry 'Ubuntu, with Linux 2.6.32-23-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu -
    -class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    echo 'Loading Linux 2.6.32-23-generic ...'
    linux /vmlinuz-2.6.32-23-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro single
    echo 'Loading initial ramdisk ...'
    initrd /initrd.img-2.6.32-23-generic
    menuentry 'Ubuntu, with Linux 2.6.32-22-generic' --class ubuntu --class gnu-linux --class gnu --class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    linux /vmlinuz-2.6.32-22-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro quiet splash
    initrd /initrd.img-2.6.32-22-generic
    menuentry 'Ubuntu, with Linux 2.6.32-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu -
    -class os {
    recordfail
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    echo 'Loading Linux 2.6.32-22-generic ...'
    linux /vmlinuz-2.6.32-22-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro single
    echo 'Loading initial ramdisk ...'
    initrd /initrd.img-2.6.32-22-generic
    ### END /etc/grub.d/10_linux ###
    ### BEGIN /etc/grub.d/20_memtest86+ ###
    menuentry "Memory test (memtest86+)" {
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    linux16 /memtest86+.bin
    menuentry "Memory test (memtest86+, serial console 115200)" {
    insmod ext2
    set root='(hd0,4)'
    search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41
    linux16 /memtest86+.bin console=ttyS0,115200n8
    ### END /etc/grub.d/20_memtest86+ ###
    ### BEGIN /etc/grub.d/30_os-prober ###
    menuentry "Arch Linux (on /dev/sda10)" {
    insmod ext2
    set root='(hd0,10)'
    search --no-floppy --fs-uuid --set 26851879-58d1-4d65-90b4-e0845fe1176c
    linux /boot/vmlinuz26 root=/dev/sda10 ro
    initrd /boot/kernel26.img
    menuentry "Arch Linux Fallback (on /dev/sda10)" {
    insmod ext2
    set root='(hd0,10)'
    search --no-floppy --fs-uuid --set 26851879-58d1-4d65-90b4-e0845fe1176c
    linux /boot/vmlinuz26 root=/dev/sda10 ro
    initrd /boot/kernel26-fallback.img
    #### END /etc/grub.d/30_os-prober ###
    ### BEGIN /etc/grub.d/40_custom ###
    # This file provides an easy way to add custom menu entries. Simply type the
    # menu entries you want to add after this comment. Be careful not to change
    # the 'exec tail' line above.
    # From Arch grub menu.lst
    # (0) Arch Linux
    #title Arch Linux [/boot/vmlinuz26]
    #root (hd0,0)
    #kernel /vmlinuz26 root=/dev/sda3 ro
    #initrd /kernel26.img
    #Note: With a separate boot partition, omit /boot from the path, (i.e. type set prefix=(hdX,Y)/grub and insmod
    (hdX,Y)/grub/linux.mod).
    #This introduces the "linux" and "initrd" commands, which should be familiar (see #Configuration).
    #An example, booting Arch Linux:
    #set root=(hd0,5)
    #linux /boot/vmlinuz26 root=/dev/sda5
    #initrd /boot/kernel26.img
    #boot
    ###menuentry "Arch1" {
    ###insmod ext2
    ###set root='(hd0,10)'
    #search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41 = FOR UBUNTU THIS IS THE BOOT
    PARTITION
    #linux /vmlinuz-2.6.32-26-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro quiet splash = FOR
    UBUNTU THIS IS THE ROOT PARTITION
    #initrd /initrd.img-2.6.32-26-generic
    ###search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41 # UBUNTU'S BOOT PARTITION UU
    ID
    ###linux /boot/vmlinuz-26 root=635d7d02-3f5b-4af6-9c74-16b2af8cc7fd ro quiet splash # ARCH'S ROOT UUID
    ###initrd /boot/kernel26.img
    # /dev/sda10 uuid = 635d7d02-3f5b-4af6-9c74-16b2af8cc7fd - obtain using ls -l /dev/disk/by-uuid/
    ###menuentry "Arch2" {
    ###insmod ext2
    ###set root='(hd0,4)' #= TRYING UBUNTU'S BOOT
    #search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41 = FOR UBUNTU THIS IS THE BOOT
    PARTITION
    #linux /vmlinuz-2.6.32-26-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro quiet splash = FOR
    UBUNTU THIS IS THE ROOT PARTITION
    #initrd /initrd.img-2.6.32-26-generic
    #search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41 # UBUNTU'S BOOT PARTITION UUID
    ###linux /boot/vmlinuz-26 root=/dev/sda10 ro quiet splash # TRYING ARCH'S ROOT DEVICE FORMAT
    ###initrd /boot/kernel26.img
    # /dev/sda10 uuid = 635d7d02-3f5b-4af6-9c74-16b2af8cc7fd - obtain using ls -l /dev/disk/by-uuid/
    ###menuentry "Arch3" {
    ###insmod ext2
    ###set root='(hd0,10)' #= TRYING UBUNTU'S BOOT IN HD FORMAT
    #search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41 = FOR UBUNTU THIS IS THE BOOT
    PARTITION
    #linux /vmlinuz-2.6.32-26-generic root=UUID=32495e1a-227c-4d23-9f63-b1319def0dd9 ro quiet splash = FOR
    UBUNTU THIS IS THE ROOT PARTITION
    #initrd /initrd.img-2.6.32-26-generic
    #search --no-floppy --fs-uuid --set d6dc69b0-967d-4886-b62d-8c0d6be06b41 # UBUNTU'S BOOT PARTITION UUID
    ###linux /boot/vmlinuz-26 root=/dev/sda10 ro quiet splash # TRYING ARCH'S ROOT DEVICE FORMAT
    ###initrd /boot/kernel26.img
    # /dev/sda10 uuid = 635d7d02-3f5b-4af6-9c74-16b2af8cc7fd - obtain using ls -l /dev/disk/by-uuid/
    ### END /etc/grub.d/40_custom ###
    =================== sda4: Location of files loaded by Grub: ===================
    .0GB: grub/core.img
    .0GB: grub/grub.cfg
    .0GB: grub/menu.lst
    .0GB: grub/stage2
    .0GB: initrd.img-2.6.32-22-generic
    .0GB: initrd.img-2.6.32-23-generic
    .1GB: initrd.img-2.6.32-24-generic
    .1GB: initrd.img-2.6.32-26-generic
    .0GB: vmlinuz26
    .0GB: vmlinuz-2.6.32-22-generic
    .0GB: vmlinuz-2.6.32-23-generic
    .1GB: vmlinuz-2.6.32-24-generic
    .0GB: vmlinuz-2.6.32-26-generic
    =============================== StdErr Messages: ===============================
    No volume groups found
    mdadm: No arrays found in config file or automatically
    [/quote]
    Output of fdisk -l from chroot is -
    [quote]Disk /dev/sda: 750.2 GB, 750155292160 bytes
    255 heads, 63 sectors/track, 91201 cylinders, total 1465147055 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x0000b084
    Device Boot Start End Blocks Id System
    /dev/sda1 417690 6554519 3068415 82 Linux swap / Solaris
    /dev/sda2 25414954 1465144064 719864555+ 5 Extended
    /dev/sda3 6554520 25414829 9430155 83 Linux
    /dev/sda4 * 63 417689 208813+ 83 Linux
    /dev/sda5 25414956 1360287809 667436427 83 Linux
    /dev/sda6 1360287873 1423198349 31455238+ 83 Linux
    /dev/sda7 1423198413 1465144064 20972826 83 Linux
    Partition table entries are not in disk order
    Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
    255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 4096 bytes
    Disk identifier: 0x00025bd3
    Device Boot Start End Blocks Id System
    /dev/sdb1 2048 1953523711 976760832 83 Linux
    I need to post this now and come back from a different machine to note the error messages I am now getting on boot. ...
    Note that when I boot and press esc to get the menu I get the menu.lst I created (in the second quote) above in /dev/sda6, ie the one with the Arch hd and uuid entries - so grub is looking there and finding that menu.lst, but something goes wrong after that.
    OK. Have now booted the machine and after pressing esc and selecting the uuid entry (the same thing happens with the hd entry) I get a whole lot of stuff, but what seems relevant is (typing it out) -
    List of all partitions:
    No filesystem could mount root, tried:
    Kernel panic - not syncing: VS: Unable to mount root fs on unknown-block(0,0)
    Pid: 1, comm: swapper Not tainted 2.6.39-Arch #1
    If anyone can help I'd really appreciate it. This is my MythTV machine so the WAF is about to take a big dive!
    If I could just install grub to the MBR as if this was a new installation of Arch that would be great.
    I am really lost as to what is going on, which I'm sure is evident.
    Thanks a lot
    belbo
    Last edited by belbo (2011-08-12 13:31:23)

    Hi. Unfortunately that didn't help.
    So next, based on this post https://wiki.archlinux.org/index.php/Ke … el_version I chrooted into Arch and (a) rolled back and (b) reinstalled my kernel but that didn't help either. I suspected it wouldn't because the kernel was working fine before I deleted the partitions in question.
    [2011-08-08 23:32] ==> Image generation successful
    [2011-08-08 23:32] upgraded kernel26 (2.6.39.3-1 -> 2.6.39.3-1)
    I then did a pacman -Suy and the linux package has now replaced kernel26. ( See this wiki entry http://www.archlinux.org/news/changes-t … filenames/). I didn't change anything in menu.lst owing to this and it seems there is no need to. Unfortunately this hasn't helped either - still getting the kernel panic. 
    Pacman.log relating to the new kernel package below -
    [2011-08-09 00:22] Running 'pacman -Suy'
    [2011-08-09 00:22] synchronizing package lists
    [2011-08-09 00:23] starting full system upgrade
    [2011-08-09 00:23] Running 'pacman -Suy'
    [2011-08-09 00:23] synchronizing package lists
    [2011-08-09 00:23] starting full system upgrade
    [2011-08-09 00:26] removed python-mygpoclient (1.5-1)
    [2011-08-09 00:26] removed kernel26 (2.6.39.3-1)
    [2011-08-09 00:26] warning: /boot/grub/menu.lst installed as /boot/grub/menu.lst.pacnew
    [2011-08-09 00:26] upgraded grub (0.97-17 -> 0.97-19)
    [2011-08-09 00:26] upgraded icu (4.8-1 -> 4.8.1-1)
    [2011-08-09 00:26] upgraded linux-firmware (20110512-2 -> 20110727-1)
    [2011-08-09 00:26] >>> Updating module dependencies. Please wait ...
    [2011-08-09 00:26] >>> Generating initial ramdisk, using mkinitcpio. Please wait...
    [2011-08-09 00:26] ==> Building image from preset: 'default'
    [2011-08-09 00:26] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
    [2011-08-09 00:26] ==> Starting build: 3.0-ARCH
    [2011-08-09 00:26] -> Parsing hook: [base]
    [2011-08-09 00:26] -> Parsing hook: [udev]
    [2011-08-09 00:26] -> Parsing hook: [autodetect]
    [2011-08-09 00:26] -> Parsing hook: [pata]
    [2011-08-09 00:26] -> Parsing hook: [scsi]
    [2011-08-09 00:26] -> Parsing hook: [sata]
    [2011-08-09 00:26] -> Parsing hook: [filesystems]
    [2011-08-09 00:26] -> Parsing hook: [usbinput]
    [2011-08-09 00:26] ==> Generating module dependencies
    [2011-08-09 00:26] ==> Creating gzip initcpio image: /boot/initramfs-linux.img
    [2011-08-09 00:26] 7079 blocks
    [2011-08-09 00:26] ==> Image generation successful
    [2011-08-09 00:26] ==> Building image from preset: 'fallback'
    [2011-08-09 00:26] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
    [2011-08-09 00:26] ==> Starting build: 3.0-ARCH
    [2011-08-09 00:26] -> Parsing hook: [base]
    [2011-08-09 00:26] -> Parsing hook: [udev]
    [2011-08-09 00:26] -> Parsing hook: [pata]
    [2011-08-09 00:26] -> Parsing hook: [scsi]
    [2011-08-09 00:26] -> Parsing hook: [sata]
    [2011-08-09 00:26] -> Parsing hook: [filesystems]
    [2011-08-09 00:26] -> Parsing hook: [usbinput]
    [2011-08-09 00:26] ==> Generating module dependencies
    [2011-08-09 00:26] ==> Creating gzip initcpio image: /boot/initramfs-linux-fallback.img
    [2011-08-09 00:26] 23360 blocks
    [2011-08-09 00:26] ==> Image generation successful
    [2011-08-09 00:26] installed linux (3.0.1-1)
    I don't think I've mentioned that my old menu.lst seems to have disappeared and so must have been on one of the partitions that were deleted. I did have 2 Arch installations when I was setting things up months ago and that menu.lst may have been on the other partition but pointing to this partiton's kernel for booting. Presumably that's possible since this partiton is definitely the one I have been using for the last several months (confirmed by log and other files updated in the last few days etc). Even so, I suppose that probably wouldn't be relevant to this issue, since grub is finding the menu.lst on this partition when it boots so it is looking in the intended place now.
    It seems I'm at a bit of a dead end. It seems these kernel panics are usually because there is something wrong with the kernel - which there wasn't with mine (and presumably the kernel in the new linux package is fine) or there is a typo in menu.lst (I can't see one and nobody has pointed one out yet) or menu.lst is pointing to the wrong partition (mine is pointing to the same partition and /boot directory that is found by grub - which is where my boot image is located - so it seems to be correct). I have nevertheless tried editing the menu.lst entry when booting to boot from different partitions but so far that hasn't worked either.
    If anybody has other ideas I'd really appreciate it.
    If not, some suggestions on re-installing would also be appreciated. I have a recent tar archive of the partition, but presumably reinstalling that wouldn't be of much use since it would just put back what is currently there. I guess that I need to format the partition, create a separate boot partition, do a fresh install of Arch into the formatted partition (and with boot in the new boot partition). And then restore my tar backup (excluding the boot directory) into the formatted partition?
    Any assistance greatly appreciated.
    Thanks
    belbo
    Last edited by belbo (2011-08-08 23:17:49)

  • [SOLVED] nouveau error while booting arch

    Hi!!! I'm newbie to arch, here is an error I can't solve myself. I search in google for solutions but they didn't solved. Please help me to solve this. I dual booted arch linux with window 8.1. After installation, while booting for the first time, this error occurred.
    Here is the error I found.
    [0.063411] Ignoring BGRT: Invalid status 0 (expected 1)
    starting version 218
    Arch_Linux: clean, 70622/18677760 files, 1643393/74703025 blocks
    [ 15.759913] nouveau E[ PIBUST][0000:01:00.0] HUBO: 0xffffffff (0x1a
    [ 15.759952] nouveau E[ PIBUST][0000:01:00.0] GPCO: 0x00000001 (0x1a
    [ 15.823494] nouveau E[ PBUS][0000:01:00.0] MMIO: 0x00000000 FAULT a
    [ 15.824050] nouveau E[ DRM]Pointer to TMDS table invalid
    [ 15.824072] nouveau E[ DRM]Pointer to flat panel table invalid}
    Last edited by aaa234 (2015-02-04 04:18:42)

    aaa234 wrote:
    runical wrote:
    That is a different problem to be honest. I assume that you can login using your normal user? If you set up sudo you might be able to get into root by using
    sudo su
    and change the password like that.
    I'm sorry if this is a noob question. Where do I type sudo su because as soon as the OS is booted, the system asks localhost login and password. I haven't installed any desktop environment yet. I only set up a password under arch-chroot but I can't login with and without that password.
    I was assuming a normal installed environment with a normal user. Using "sudo su", you can abuse privileges granted by sudo to circumvent the password required by su. A well configured sudo should not allow this, but in this case it seemed likely that the system was not completely set up yet.
    problem has been solved with this https://bbs.archlinux.org/viewtopic.php?id=168879
    Then, if there are no more problems, please mark the thread as solved.

  • [SOLVED] Windows 8.1, lost Arch boot loader, cannot reinstall or boot

    Hi all,
    Apologies but I am only posting as I have exhausted my (admittedly quite limited) knowledge and have spent hours trying to get it back up and running but nothing seems to work at all. This will probably be quite long, apologies if there is something really obvious that I have missed on the Wiki or anywhere, but I'm only posting as I can't seem to get anywhere with it at all despite reading and trying.
    Essentially I had a Toshiba Satellite p850-321 laptop (UEFI, secure boot off, fast boot off) which I had dual booting with Windows 8 and Arch using rEFInd. I then had several moments of madness, starting when for some reason - on very little sleep so didn't think - decided to upgrade Windows 8 to 8.1. Unsurprisingly (but a surprise for me at the time), it then booted straight into Windows 8.1, no rEFInd. In hindsight, it had probably just set itself as boot priority but I thought it had overwritten rEFInd with its own bootloader or set it back to default or something so started on a way to try and get it back.
    I then spent many hours trying to get my old bootable Arch USB stick to work with no joy, updating it to the latest arch iso and all sorts. It eventually worked when I updated the laptop BIOS. Booted from the USB, chrooted into arch, reinstalled rEFInd, played around, eventually got it to reboot and display rEFInd but Arch wouldn't start. At this point I noticed that my fstab looked strange (devices/labels mixed up from what I expected), so followed the Beginner's Guide again and recreated the fstab. My disk is partitioned as follows (main partitions of note):
    /dev/sda2 - Windows EFI partition
    /dev/sda4 Windows 8.1
    /dev/sda6 arch swap partition (archswap)
    /dev/sda7 arch root partition (archroot)
    /dev/sda8 arch home partition (archhome)
    Couldn't get rEFInd to work so decided to start again with gummiboot. Installed gummiboot, followed Beginner's Guide to install and configure it. Edited arch.conf and after having to mess about with the location of vmlinuz-arch.efi in the conf file, I have the options part looking like this:
    options        root=/dev/sda7 rw 
    Now gummiboot loads on startup but all I get on trying to load Arch from gummiboot is the dreaded:
    ERROR: device '' not found. Skipping fsck
    ERROR: Unable to find root device ''.
    I've tried changing the root in options in arch.conf to UUID, PARTUUID and even different partitions (just to see what happened...) - the same. Is it likely to be due to me recreating the fstab and something is messed up there?
    Another problem is that now, whatever I do, I cannot boot from the USB again to get in to even try to fix anything. The laptop on boot just hangs for a while and then loads the gummiboot from the disk drive rather than from the USB (I've set the boot priority, everything) and nothing will allow me to boot from the USB. That is probably a secondary issue, I can probably try to reinstall the BIOS again and see if that helps.
    If anyone has had anything similar and has any solutions I'd be really grateful - anything. I don't mind being shown to be incredibly stupid, I get that a lot so have a lot of experience! - just anything that can get me back into Arch again without having to reinstall from scratch!
    Thanks.
    Last edited by pilf (2013-11-02 19:45:44)

    Thanks for replying, very much appreciated. The partitions were numbered sequentially, I only posted up the partitions that I thought were of interest to the issue (which wasn't very helpful!). The partitions are as follows:
    Partition No     Type             
    1                     Win Recover
    2                     EFI System (EFI partition)
    3                     Microsoft Reserved
    4                     Microsoft Basic (Windows 8.1 installation)
    5                     Windows Recover
    6                     Linux Swap
    7                     Microsoft Basic (Arch root partition)
    8                     Microsoft Basic (Arch home partition)
    9                     Windows Recover
    It looks like I have managed to solve it, but I admit I'm not sure what of the several changes I made that solved it. I managed to boot into the USB arch disk by resetting my BIOS back to defaults and then changing the boot order back, which was the only way it would boot the USB - without resetting back and putting the boot order back exactly how it was before it wouldn't boot from the USB. Anyway...
    Checked the partitions with gdisk, no problems. I did sort the partitions as you mentioned, just in case. Changed the partition names using gdisk to the same names I had before (archroot, archhome, archswap). Changed the types from Microsoft Basic to Linux filesystem (partitions 7 and 8) and wrote the partition.
    Mounted everything, chrooted, edited the gummiboot arch.conf file and noticed there were some strange characters in it, a forward slash before /root in the options for example. I had edited the arch.conf file from windows by booting into Windows, mounting the EFI partition (mountvol z: /s) and editing it that way, which would have messed up the formatting. It can't have only been that though as it wasn't booting anyway which is why I went into Windows to edit the file in the first place. Corrected the arch.conf file, rebooted and it booted. Some errors on boot which I need to correct but I can work on those as it boots into my arch installation.
    So all solved. I thought I'd update just to say thanks for the advice and in case it helps anyone else in the future.

  • (solved) get X to use my PCI card instead of onboard graphics.

    I'm trying to install arch on an old P4 dell (dimension 2350) and given the specific requirements and restrictions of this given beast I'm having a bit of trouble getting X configured.  (I'm turning it into a replacement for my modded xbox running xbmc, yes, I know it won't play hi-def)
    Here's the setup:
    - It has onboard graphics (intel) which I don't plan on using since it only has vga out.
    - I've installed my video card (ATI radeon 9250 - hey it's the best standard pci card I could find)
    Here's the problem:
    - Everything works with the onboard intel chip
    - If I try to plug my monitor in to the ATI card it (the monitor) dims and doesn't register as being attached.\
    - I've tried turning off the onboard graphics in my bios but the only options are "onboard" and "auto" so it's currently set to auto.
    More fun:
    - The fun part is that I plan on using the ATI card's svideo out to my tv once it's set up, I'm just trying to get the monitor to work while I configure everything.
    I'm considering trying to run an ubuntu live disc and seeing if I can copy over the xorg.conf file that gets generated.
    Any ideas?
    **edit
    After some searching I've got it working.  Apparently linux still reads onboard cards with this pc/bios because of the piss poor bios.
    i added 'blacklist agpgart' & 'blacklist intel_agp' (without quotes) to /etc/modprobe.d/blacklist, set video to 'auto' in the bios, plugged the monitor into my card and rebooted.
    sweet.
    Last edited by ctarwater (2009-04-05 00:44:18)

    Oh my God -.- I had that page open, read through it but I didn't realized that my solution was written there
    Thanks very much!! It worked :-)

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