Re: [gentoo-user] Disk partition query
Hemmann, Volker Armin wrote: > On Dienstag, 1. Mai 2007, Norberto Bensa wrote: > > > > Yup. And a swapfile needs mounting and activating. > > and? What is the problem? The partition has to be mounted anyway, and > activating a swapfile or swap partition takes the same amount of time. okay... regards, norberto -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
On Dienstag, 1. Mai 2007, Norberto Bensa wrote: > Hemmann, Volker Armin wrote: > > no, I trust the kernel devs how said, that a swapfile in 2.6 should not > > be slower. > > "should not" is not the same as "is not" > > I better trust my own experiences... and I mine - which showed me in the past, that both suck the same. > > > > /dev/swap-device none swap sw 0 0 > > > > > > (Note mount-point is none.) > > > > you 'activate it', which is pretty similar to mounting. > > Yup. And a swapfile needs mounting and activating. > and? What is the problem? The partition has to be mounted anyway, and activating a swapfile or swap partition takes the same amount of time. swapfiles even have the big advantage, that you can remove or resize them easily. Need more space? Remove it! Need more swap? Create another one. I do have a swap partition ATM, because I abuse it for bios updates once in a while (converting it to fat and use it to store the files, so I can boot from a freedos cd), and a swapfile for emergencies. -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
Hemmann, Volker Armin wrote: > no, I trust the kernel devs how said, that a swapfile in 2.6 should not be > slower. "should not" is not the same as "is not" I better trust my own experiences... > > /dev/swap-device none swap sw 0 0 > > > > (Note mount-point is none.) > > you 'activate it', which is pretty similar to mounting. Yup. And a swapfile needs mounting and activating. Best regards, Norberto -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
On Dienstag, 1. Mai 2007, Norberto Bensa wrote: > Hemmann, Volker Armin wrote: > > On Dienstag, 1. Mai 2007, Norberto Bensa wrote: > > > True, but you're adding a layer (or more if you're using lvm) to the VM > > > subsystem. The whole point of the swap partition is to simplify access > > > to swapped pages and therefore make it very fast. > > > > that does not explain, why a good swapfile is not slower than a partition > > ;) > > Do you have any benchmarks? > no, I trust the kernel devs how said, that a swapfile in 2.6 should not be slower. > > You do not mount a swap partition: > > /dev/swap-device none swap sw 0 0 > > (Note mount-point is none.) you 'activate it', which is pretty similar to mounting. > > And a swapfile needs: > > /dev/partition-with-swap-file/mnt/swap ext3 defaults 0 0 > > and then: > > swapon /mnt/swap/path-to-swapfile > -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
Hemmann, Volker Armin wrote: > On Dienstag, 1. Mai 2007, Norberto Bensa wrote: > > True, but you're adding a layer (or more if you're using lvm) to the VM > > subsystem. The whole point of the swap partition is to simplify access to > > swapped pages and therefore make it very fast. > > that does not explain, why a good swapfile is not slower than a partition > ;) Do you have any benchmarks? I don't, but two years ago I tried swapfiles and the box lagged on high-load/swapping. Creating a swap partition fixed the problem. > > > Moreover, a swap partion is easily reusable between other Linuxes on the > > same box and although you can also reuse a swapfile, you'll need to mount > > the partition first. > > so what is the difference between mounting a partition and mounting a > partition? You do not mount a swap partition: /dev/swap-device none swap sw 0 0 (Note mount-point is none.) And a swapfile needs: /dev/partition-with-swap-file/mnt/swap ext3 defaults 0 0 and then: swapon /mnt/swap/path-to-swapfile (ext3 as an example only) Regards, Norberto -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
On Dienstag, 1. Mai 2007, Norberto Bensa wrote: > Hemmann, Volker Armin wrote: > > On Montag, 30. April 2007, Stuart Howard wrote: > > > Can swap be assigned to an extended/logical partition? > > > > yes, but you don't need a swap partition. A swapfile will work as fine as > > a swap partition. > > True, but you're adding a layer (or more if you're using lvm) to the VM > subsystem. The whole point of the swap partition is to simplify access to > swapped pages and therefore make it very fast. that does not explain, why a good swapfile is not slower than a partition ;) > > Moreover, a swap partion is easily reusable between other Linuxes on the > same box and although you can also reuse a swapfile, you'll need to mount > the partition first. so what is the difference between mounting a partition and mounting a partition? > > > you can always remove the windows partition ;) > > Windows can *sometimes* save your life :) > hm, so far it only removed many years of my potential lifespan. -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
Stuart Howard: > I went brave and tried Alans method, I wanted a tidy disk :) > > Not to worry but for me [dont know my error ] it did not work and > killed my XP install, so reverted back to method A essentially and > reinstalled wingaming XP so all is fine now. > I shall consider it a lesson to remember to save! up on primary > partitions next time. Thanks all for trying. > Just for the future: When changing the partition table of a disk that includes Windows the most common problem ist that the NT bootloader (ntldr) doesn't find Windows any longer (usually it tells you that it can't find hal.dll). At this moment Windows is not brocken! You just have to edit your boot.ini. Play around with it. Since ntldr can't see your Linux partitions properly the logical setting might not be the correct one. My advice: Keep these files on a floppy so you can change them easily without writing to ntfs: ntldr boot.ini ntdetect.com maybe others in c:\ pgp2782bXCfk9.pgp Description: PGP signature
Re: [gentoo-user] Disk partition query
Hemmann, Volker Armin wrote: > On Montag, 30. April 2007, Stuart Howard wrote: > > Can swap be assigned to an extended/logical partition? > > yes, but you don't need a swap partition. A swapfile will work as fine as a > swap partition. True, but you're adding a layer (or more if you're using lvm) to the VM subsystem. The whole point of the swap partition is to simplify access to swapped pages and therefore make it very fast. Moreover, a swap partion is easily reusable between other Linuxes on the same box and although you can also reuse a swapfile, you'll need to mount the partition first. > you can always remove the windows partition ;) Windows can *sometimes* save your life :) Best regards, Norberto -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
I went brave and tried Alans method, I wanted a tidy disk :) Not to worry but for me [dont know my error ] it did not work and killed my XP install, so reverted back to method A essentially and reinstalled wingaming XP so all is fine now. I shall consider it a lesson to remember to save! up on primary partitions next time. Thanks all for trying. stu On 30/04/07, Alan McKinnon <[EMAIL PROTECTED]> wrote: On Monday 30 April 2007, Stuart Howard wrote: > I have made an annoying error when setting up my new computer. > I installed Gentoo then winXP and made it dual boot, all of which has > gone fine however when I did this I partitioned my disk as shown the > theory being that I would assign space as required after all > installation. Unfortunatly I made the 4 partitions all primary! and > now I cannot make more partitions to consume the extra space. Easy. Use fdisk, and write down the start and end cylinders of the 4th partition. Then delete it. Yes, delete it. No, I'm not tricking you. Now create an extended partition using all available cylinders, and create a logical partition with the same start and end cylinders as the original one you deleted. Save, quit, reboot alan -- Optimists say the glass is half full, Pessimists say the glass is half empty, Developers say wtf is the glass twice as big as it needs to be? Alan McKinnon alan at linuxholdings dot co dot za +27 82, double three seven, one nine three five -- [EMAIL PROTECTED] mailing list -- "There are 10 types of people in this world: those who understand binary, those who don't" --Unknown -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
On Monday 30 April 2007 5:01:41 am Stuart Howard wrote: > Can I for example delete the swap and then create an extended > partition within the free space and finally create logical partitions > as required? > > Can swap be assigned to an extended/logical partition? Yes and yes...as an added bonus you can do this within your running system #swapoff -a (modify partitions and fstab) #swapon -a -jm -- [EMAIL PROTECTED] mailing list
Re: [gentoo-user] Disk partition query
On Montag, 30. April 2007, Stuart Howard wrote: > I have made an annoying error when setting up my new computer. > I installed Gentoo then winXP and made it dual boot, all of which has > gone fine however when I did this I partitioned my disk as shown the > theory being that I would assign space as required after all > installation. Unfortunatly I made the 4 partitions all primary! and > now I cannot make more partitions to consume the extra space. > > Can I for example delete the swap and then create an extended > partition within the free space and finally create logical partitions > as required? yes. > > Can swap be assigned to an extended/logical partition? yes, but you don't need a swap partition. A swapfile will work as fine as a swap partition. > > I am being a little over cautious in asking this on list before I try > but after 3 days of compiling I am not in the mood to lose it all to > an avoidable mistake :) you can always remove the windows partition ;) -- [EMAIL PROTECTED] mailing list
[gentoo-user] Disk partition query
I have made an annoying error when setting up my new computer. I installed Gentoo then winXP and made it dual boot, all of which has gone fine however when I did this I partitioned my disk as shown the theory being that I would assign space as required after all installation. Unfortunatly I made the 4 partitions all primary! and now I cannot make more partitions to consume the extra space. Can I for example delete the swap and then create an extended partition within the free space and finally create logical partitions as required? Can swap be assigned to an extended/logical partition? I am being a little over cautious in asking this on list before I try but after 3 days of compiling I am not in the mood to lose it all to an avoidable mistake :) Thanks stu Disk /dev/sda: 163.9 GB, 163928604672 bytes 255 heads, 63 sectors/track, 19929 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 1 13 104391 83 Linux /dev/sda2 14 78 522112+ 82 Linux swap / Solaris /dev/sda3 79262820482875 83 Linux /dev/sda4 *2629627529294527+ 7 HPFS/NTFS -- "There are 10 types of people in this world: those who understand binary, those who don't" --Unknown -- [EMAIL PROTECTED] mailing list
