[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2009-08-23 Thread kg
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 proble

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2009-03-27 Thread Frederik Seidelin
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 Co

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2009-02-26 Thread Colin Watson
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 noti

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-13 Thread Dimitrios Symeonidis
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 instea

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-13 Thread Dimitrios Symeonidis
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)

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-13 Thread jamescridland
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 memb

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-12 Thread Jiri Bajer
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_backg

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-12 Thread Dimitrios Symeonidis
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 l

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-11 Thread Colin Watson
(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 pa

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-11 Thread Colin Watson
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) Sourcepa

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-11 Thread Dimitrios Symeonidis
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://

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-11 Thread jamescridland
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 rece

[Bug 281683] Re: Incorrect partition creation when on an SSD (EXT3 instead of EXT2)

2008-10-11 Thread Dimitrios Symeonidis
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 w