This one time, at band camp, Vesa Savolainen said: > After upgrading from linux-image-2.6.18-4-686 to linux-image-2.6.21-2-686, > the system fails to boot because the kernel now suddenly sees hard drive > as /dev/sda while linux-image-2.6.18-4-686 saw the same hard drive as > /dev/hda. After editing /boot/grub/menu.lst and changing /dev/hda5 to > /dev/sda5, the system boots O.K with linux-image-2.6.21-2-686, but fails > to enable dma for /dev/sda.
Yes, this is probably part of the libata transition. The right way to do this is probably to use filesystem labels for bootup, rather than hard conding device names. I don't think that can be done automagically, so this may just have to be documented in release notes. > SCSI subsystem initialized > libata version 2.20 loaded. > pata_sis 0000:00:02.5: version 0.5.0 > ata1: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001ffa0 irq 14 > ata2: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001ffa8 irq 15 > scsi0 : pata_sis > ata1.00: ATA-6: ST3160021A, 8.01, max UDMA/100 > ata1.00: 312581808 sectors, multi 16: LBA48 > ata1.00: configured for UDMA/100 > SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB) > sda: Write Protect is off > sda: Mode Sense: 00 3a 00 00 > SCSI device sda: write cache: enabled, read cache: enabled, doesn't support > DPO or FUA > SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB) > sda: Write Protect is off > sda: Mode Sense: 00 3a 00 00 > SCSI device sda: write cache: enabled, read cache: enabled, doesn't support > DPO or FUA > sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 > sda4 > sd 0:0:0:0: Attached scsi disk sda That looks to me like it decided your drive was UDMA/100 and configured for it correctly. What makes you say it didn't enable dma? -- ----------------------------------------------------------------- | ,''`. Stephen Gran | | : :' : [EMAIL PROTECTED] | | `. `' Debian user, admin, and developer | | `- http://www.debian.org | -----------------------------------------------------------------
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