[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
I'm not sure that all SSDs should only be used with ext2. Early/cheaper JMicron-based SSDs have lots of issues with small writes which can cause big slowdowns, and certainly journalling wouldn't help for that. But there are now several drives that dont have anywhere near the same performance problems, and since SSDs are still an emerging technology really, I'd expect things to keep improving. Point is, just because someone has an SSD, doesn't mean they need to use ext2 to cut down on writes. -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
I'm not sure that it would do anything but confuse the user, Dimitrios. You and I obviously know whether we have an SSD, but I don't think most people are aware of anything about their hard drive but the storage space -- I mean, 5400-RPM hard drives continue to exist and are even sold with Intel Core processors! If the user, who could also be one who'd scarcely even heard of netbooks, further reducing the likelihood that they have a clue about the difference between magnetic and flash- based hard drives, had to answer questions like that, they might stall and think Ubuntu is too technical. Especially if they were moving from Windows which just works... I don't have any better suggestions, though. -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
Workaround for Jaunty: add the kernel parameter partman/default_filesystem=ext2 when booting the installer. There is other work in progress on detecting SSDs. -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
ok, here's just an idea: what if, as a temporary solution, we add one more choice in the installer's partitioner? something like Guided - Flash/SSD media - use entire disk... until we find a way to detect the type of media, that is... -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
Similar on this Acer Aspire One: sudo hdparm -I /dev/sda | grep Model Model Number: P-SSD1800 ...if this is useful -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
on one hand, using hdparm (or sdparm) might bring us closer to a solution however, we definitely cannot depend on the model number for reliable detection (possibility of false negatives, and maybe even some false positives???) -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
thanks colin. james said he chose guided, not manual. -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
Colin: ad detection of SSD - in my eee 901 it's shown in hdparm: $ sudo hdparm -I /dev/sda | grep Model Model Number: ASUS-PHISON SSD OTOH dmesg doesn't show any SSD-specific messages... ad settings for SSD: I'd vote for mount -o noatime,commit=60 and vm.swappiness=0 vm.dirty_background_ratio=1 vm.dirty_ratio=40 vm.dirty_writeback_centisecs=6000 or similar in /etc/sysctl.conf -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
just to clarify: your suggestion is that the ubuntu installer automatically uses ext2 when installing to an ssd? also, during installation, which method of formatting did you choose? (manually, guided, etc) ** Changed in: ubuntu Status: New = Incomplete -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
I chose guided. And yes, my suggestion is that the Ubuntu installer automatically uses EXT2 when installing to an SSD - rather, that its choice of EXT3 for an SSD is incorrect. -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
now we need to see if there's actually a way to tell if the underlying storage device is magnetic or solid state... ** Changed in: ubiquity (Ubuntu) Sourcepackagename: None = ubiquity Status: Incomplete = New -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
Being able to detect it would make it relatively straightforward to fix in the manual partitioner. It'd still be an utter pain in the automatic partitioner because ext3 is hardcoded in the recipe files. I'm not even sure where to start here ... ** Changed in: partman-partitioning (Ubuntu) Sourcepackagename: ubiquity = partman-partitioning ** Also affects: partman-auto (Ubuntu) Importance: Undecided Status: New ** Changed in: partman-partitioning (Ubuntu) Importance: Undecided = Low Status: New = Triaged -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)
(Marking as low simply because I'm not sure whether we'll get to this any time soon. It seems that manual partitioning is the most practical solution for the time being. I'm interested in how you got confused when trying to choose ext2 instead; it ought to be fairly straightforward in the manual partitioner.) ** Changed in: partman-auto (Ubuntu) Importance: Undecided = Low Status: New = Triaged -- Incorrect partition creation when on an SSD (EXT3 instead of EXT2) https://bugs.launchpad.net/bugs/281683 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
