Re: [gentoo-user] lvm2/external partitions question
Comments inline: moriah ~ # df -h FilesystemSize Used Avail Use% Mounted on /dev/hda5 3.8G 2.2G 1.6G 59% / udev 252M 2.6M 249M 2% /dev cachedir 3.8G 2.2G 1.6G 59% /lib/splash/cache /dev/vg1/usr 32G 5.9G 27G 19% /usr /dev/vg1/var 48G 2.3G 46G 5% /var /dev/vg1/tmp 16G 33M 16G 1% /tmp /dev/vg1/opt 4.0G 169M 3.9G 5% /opt /dev/vg1/home 77G 26G 52G 34% /home none 252M 0 252M 0% /dev/shm /dev/hda1 92M 18M 69M 21% /boot /dev/hda3 3.8G 1.7G 2.1G 46% /mnt/hda3 On Tue, 2005-08-30 at 07:49 +0200, Dirk Heinrichs wrote: Am Dienstag, 30. August 2005 06:28 schrieb ext Mark Knecht: That's very helpful. To test my understanding /dev/hda1 - boot - 100M Way too much. only if you are using for nothing else but kernels - as mentioned in my prev. I intended using it for storage as well as booting. /dev/hda2 - swap - 2G Can be on a logical volume, too. I have seen warnings against doing this due to poor performance /dev/hda3 - NOT CLEAR - the backup/rescue install? Why? Use the LiveCD. Some machines dont have a CD. A liveCD also doesnt run squid with my setup, a mailfiltering gateway or my particular firewall configuration and so on so its either useless, or means extensive downtime to reconfigure. For pure rescue, or a limited desktop a liveCD is fine (and generally knoppix is superior anyway for a desktop) only if you are using for nothing else but kernels - as mentioned in my prev. I intended using it for storage as well as booting. /dev/hda4 - LVM - 200G /dev/hda5 - root - 4G Can also be on a logical volume, but needs an initrd/initramfs. 4G is too large, IMHO. Mine is 256M. As you can see, I already use 2.2G of the root (and 2.9G on another system), and sometimes much more - so 256M isnt going to get me far! Set it to your own particular requirements. I dont use initrd's - too flakey, extra work thats not needed in most cases. I decided in my early experiments to limit LVM for data on the partitions that cause me grief with space so most of the root partitions including /etc and /lib are on a base filesystem (/) This can simplify working on the system. It is possible to use LVM for nearly everything, but there's extra complexity, and warnings about some configurations. Small roots used to be the way in the old days, but the number of machines that crashed due to running out of root space were legion! So you've placed pretty much the bulk of the machine in LVM and it's working well for you. That's cool. I've even placed _all_ of my machines on logical volumes (using EVMS), and it also works well. Could you possibly share a bit from your grub.conf file as well as your fstab file? I think with that info I'd be pretty confident when I do the build tomorrow morning. Partition table: # fdisk -l /dev/hda Disk /dev/hda: 10.0 GB, 10005037056 bytes 240 heads, 63 sectors/track, 1292 cylinders Units = cylinders of 15120 * 512 = 7741440 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 8 60448+ 83 Linux /dev/hda2 91292 9707040 83 Linux Everything below resides on hda2. /etc/fstab: /dev/evms/root / reiserfsdefaults,acl 0 1 /dev/evms/usr /usrreiserfsdefaults,acl 0 2 /dev/evms/var /varreiserfsdefaults,acl 0 2 /dev/evms/opt /optreiserfsdefaults,acl 0 2 /dev/evms/build /gentoo/build reiserfsdefaults,acl 0 2 /dev/evms/distfiles /gentoo/distfiles reiserfsdefaults,acl 0 2 /dev/evms/swap noneswapsw 0 0 Sizes: # df -h|grep evms /dev/evms/root256M 132M 125M 52% / /dev/evms/usr 3.0G 2.6G 452M 86% /usr /dev/evms/var 384M 210M 174M 55% /var /dev/evms/opt 512M 497M 16M 97% /opt /dev/evms/build 2.7G 1.5G 1.2G 57% /gentoo/build /dev/evms/distfiles 1.5G 1.4G 127M 92% /gentoo/distfiles Note that this machine gets $HOME from NFS, so I don't list it here. I would usually create a separate volume for each users home dir, so that I don't have to care about quota (if needed). grub.conf: title Gentoo Linux 2.6 kernel /vmlinuz-2.6.12.3 root=/dev/ram0 realroot=/dev/evms/root vga=794 initrd=/initrd-2.6.12.3.gz Note that I use a self-made initrd, which activates the EVMS volumes (needed because / is an EVMS volume, too), does a pivot_root from root to realroot and then starts up the real thing. Bye... Dirk -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] lvm2/external partitions question
Am Dienstag, 30. August 2005 08:49 schrieb ext W.Kenworthy: Comments inline: moriah ~ # df -h FilesystemSize Used Avail Use% Mounted on udev 252M 2.6M 249M 2% /dev Hmm, mine takes 116k, how comes your /dev uses 2.6M? cachedir 3.8G 2.2G 1.6G 59% /lib/splash/cache This looks to be the same as /, what is it good for, could you explain this? /dev/vg1/usr 32G 5.9G 27G 19% /usr /dev/vg1/var 48G 2.3G 46G 5% /var I doubt you'll ever get them filled. /dev/vg1/tmp 16G 33M 16G 1% /tmp I use tmpfs for this, but that really depends. /dev/vg1/home 77G 26G 52G 34% /home As said before I prefer per-user volumes (and use the automounter to mount them on demand). On Tue, 2005-08-30 at 07:49 +0200, Dirk Heinrichs wrote: Am Dienstag, 30. August 2005 06:28 schrieb ext Mark Knecht: That's very helpful. To test my understanding /dev/hda1 - boot - 100M Way too much. only if you are using for nothing else but kernels - as mentioned in my prev. I intended using it for storage as well as booting. /dev/hda2 - swap - 2G Can be on a logical volume, too. I have seen warnings against doing this due to poor performance Do you have any real numbers? /dev/hda3 - NOT CLEAR - the backup/rescue install? Why? Use the LiveCD. Some machines dont have a CD. A liveCD also doesnt run squid with my setup, a mailfiltering gateway or my particular firewall configuration and so on so its either useless, or means extensive downtime to reconfigure. For pure rescue, or a limited desktop a liveCD is fine (and generally knoppix is superior anyway for a desktop) only if you are using for nothing else but kernels - as mentioned in my prev. I intended using it for storage as well as booting. OK, depending on the use of the machine, it may be useful, but Mark didn't tell. So I wanted to show another way. /dev/hda5 - root - 4G Can also be on a logical volume, but needs an initrd/initramfs. 4G is too large, IMHO. Mine is 256M. As you can see, I already use 2.2G of the root (and 2.9G on another system), and sometimes much more - so 256M isnt going to get me far! I wonder what else to put on / that couldn't be on a separate volume? / has everything to get things set up, nothing more nothing less. If I'd need a rescue system, I would rsync my current / to a separate volume/partition and change one line in /etc/fstab on the clone and add an entry for it to grub conf. Set it to your own particular requirements. I dont use initrd's - too flakey, extra work thats not needed in most cases. I decided in my early experiments to limit LVM for data on the partitions that cause me grief with space so most of the root partitions including /etc and /lib are on a base filesystem (/) This can simplify working on the system. It is possible to use LVM for nearly everything, but there's extra complexity, and warnings about some configurations. Small roots used to be the way in the old days, but the number of machines that crashed due to running out of root space were legion! As you can see below, even my 256M are too much, only 52% are used and it didn't change much for years. Even if I would run out of space on /, I could simply grow it (and since it's a lv, with reiserfs on it, it can be done online). Sizes: # df -h|grep evms /dev/evms/root256M 132M 125M 52% / Bye... Dirk -- Dirk Heinrichs | Tel: +49 (0)162 234 3408 Configuration Manager | Fax: +49 (0)211 47068 111 Capgemini Deutschland | Mail: [EMAIL PROTECTED] Hambornerstraße 55 | Web: http://www.capgemini.com D-40472 Düsseldorf | ICQ#: 110037733 GPG Public Key C2E467BB | Keyserver: www.keyserver.net pgpfN18xOOpLq.pgp Description: PGP signature
Re: [gentoo-user] lvm2/external partitions question
On Mon, 29 Aug 2005 17:50:15 -0700, Mark Knecht wrote: I'm looking at LVN2 for this install. The main drive is 250GB. I'm wondering a couple of things: I've ben using LVM2 on my AMD64 box since I built it. 1) Should use all of the drive, other than the boot and swap partitions, for the main LVN partition and then let LVN subdivide it as needs come up as per the Gentoo-wiki on LVN2? This would meen, as I understand it, that there would never been more than real partitions on the drive. I have /boot, swap and / on normal partitions, everything else on LVM. / is only 300MB, as /usr is on an LVM2 partition, /var and /opt are bound to directories in /usr. I kow I could put / on LVM, but that requires an initrd, which adds unnecessary complication IMO. 2) Possibly make the main install partition something like 50GB and use the balance of the hard drive outside of LVM2? If I do this and later add a new partition within LVM does that somehow change device numbering (/dev/sdaX) on the external partitions? LVM uses its own partition naming. As far as the /dev/sda is concerned, there are only four partitions in my setup. As someone else has already suggested, make your partitions within LVM no larger than you think you'll need, because it is so easy to enlarge them later. Most filesystems can be enlarged while still mounted, while shrinking a filesystem either requires it to be unmounted or is impossible depending on your filesystem. QUESTION: Are there any performance differences between using LVM and a standard partition? Not that I've noticed. QUESTION 2: does anythign about LVM2 beg for a 2005.1 LiveCD? Mine is 2005.0. I installed it with a 2004.x CD, so I'm sure 2005.0 should be fine. -- Neil Bothwick If you like this tagline, call 1-800-TAGS'R'US pgpdvTU5im0am.pgp Description: PGP signature
Re: [gentoo-user] lvm2/external partitions question
Am Dienstag, 30. August 2005 10:25 schrieb ext W.Kenworthy: On Tue, 2005-08-30 at 09:38 +0200, Dirk Heinrichs wrote: Am Dienstag, 30. August 2005 08:49 schrieb ext W.Kenworthy: Comments inline: moriah ~ # df -h FilesystemSize Used Avail Use% Mounted on udev 252M 2.6M 249M 2% /dev Hmm, mine takes 116k, how comes your /dev uses 2.6M? everything thats not on a LVM volume sits here. the biggest is /root/.ccache (800M, easily moved elsewhere) and /lib/modules I was refering to the udev line (116K vs. 2.6M in /dev). /dev/vg1/tmp 16G 33M 16G 1% /tmp I use tmpfs for this, but that really depends. I have done that in the past - but I found sometimes I just had to have the room (zipping 2G plus archives for instance) As I said, that depends. /dev/vg1/home 77G 26G 52G 34% /home As said before I prefer per-user volumes (and use the automounter to mount them on demand). extra complexity - I dont need remote mounts, and I am the main user. If you use an automount on the same machine Ive gotta ask why bother. Because a filesystem that isn't mounted when not needed can't be corrupted or its contents accidentally deleted. I tend to only mount things when they are really needed. I also use the automounter for removeable media and the Gentoo specific stuff like distfiles and building (/gentoo/distfiles, /gentoo/build). Bye... Dirk -- Dirk Heinrichs | Tel: +49 (0)162 234 3408 Configuration Manager | Fax: +49 (0)211 47068 111 Capgemini Deutschland | Mail: [EMAIL PROTECTED] Hambornerstraße 55 | Web: http://www.capgemini.com D-40472 Düsseldorf | ICQ#: 110037733 GPG Public Key C2E467BB | Keyserver: www.keyserver.net pgpkfK2W7KThS.pgp Description: PGP signature
Re: [gentoo-user] lvm2/external partitions question
You can use it all or into chunks of 20GB each as the how-to suggests; I agree. I think the biggest reason to use the whole drive as one logical partition would be if you had dual SATA and you were striping. It's nice to have that extra space available as non-LVM2 just in case you need it. And since we are talking about LVM2, if you have a few partitions you can always manipulate them at will anyhow. -- 8^) Laterz- ~Alvin http://CoolAJ86.Havenite.net --- Computers are like air conditioners - They can't do their job properly if you open windows. begin:vcard fn:Alvin A ONeal Jr n:ONeal;Alvin adr;dom:;;34 Fletcher Lane;Shelburne;VT;05482 email;internet:[EMAIL PROTECTED] tel;work:1.802.877.2938 tel;home:1.802.985.5277 tel;cell:1.802.578.0599 note;quoted-printable:DoB: 19860616=0D=0A= x-mozilla-html:FALSE url:http://coolaj86.havenite.net version:2.1 end:vcard
Re: [gentoo-user] lvm2/external partitions question
Thanks Neil On 8/30/05, Neil Bothwick [EMAIL PROTECTED] wrote: On Mon, 29 Aug 2005 17:50:15 -0700, Mark Knecht wrote: I'm looking at LVN2 for this install. The main drive is 250GB. I'm wondering a couple of things: I've ben using LVM2 on my AMD64 box since I built it. 1) Should use all of the drive, other than the boot and swap partitions, for the main LVN partition and then let LVN subdivide it as needs come up as per the Gentoo-wiki on LVN2? This would meen, as I understand it, that there would never been more than real partitions on the drive. I have /boot, swap and / on normal partitions, everything else on LVM. / is only 300MB, as /usr is on an LVM2 partition, /var and /opt are bound to directories in /usr. I kow I could put / on LVM, but that requires an initrd, which adds unnecessary complication IMO. OK, so if sda1 == /boot sda2 == swap sda3 == / are on 'normal' partitions, then is LVM2 your last of 4 partitions or is it in an extended partition to allow for other things later on the drive? I was considering making the 4th partition extended, placing LVM2 on sda5, if that will work, and having one more partition that was possibly FAT32 for transfer to my windows boxes if the need arises. 2) Possibly make the main install partition something like 50GB and use the balance of the hard drive outside of LVM2? If I do this and later add a new partition within LVM does that somehow change device numbering (/dev/sdaX) on the external partitions? LVM uses its own partition naming. As far as the /dev/sda is concerned, there are only four partitions in my setup. As someone else has already suggested, make your partitions within LVM no larger than you think you'll need, because it is so easy to enlarge them later. Most filesystems can be enlarged while still mounted, while shrinking a filesystem either requires it to be unmounted or is impossible depending on your filesystem. So I think this says LVM2 is on a normal, non-extended, partition at sda4 but just checking. Thanks for your insights, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] lvm2/external partitions question
On Tue, 30 Aug 2005 15:03:49 -0700, Mark Knecht wrote: I have /boot, swap and / on normal partitions, everything else on LVM. / is only 300MB, as /usr is on an LVM2 partition, /var and /opt are bound to directories in /usr. I kow I could put / on LVM, but that requires an initrd, which adds unnecessary complication IMO. OK, so if sda1 == /boot sda2 == swap sda3 == / are on 'normal' partitions, then is LVM2 your last of 4 partitions or is it in an extended partition to allow for other things later on the drive? They're on RAID partitions now, but all of those are extended. Before I added the second drive, they were directly on extended partitions. I never use primary partitions on Linux-only boxes, I don't see the point is adding another limitation. It was sda5 - /boot sda6 - swap sda7 - / sda8 - LVM If you're concerned that you may need non-LVM space later, leave a gap between 7 and 8. That way you have the choice later of extending / or adding another partition and adding it to LVM. -- Neil Bothwick Q. How many mice does it take to screw in a light bulb? A. Only two - but it's difficult to get them in there. pgppVWEJCIOHq.pgp Description: PGP signature
Re: [gentoo-user] lvm2/external partitions question
On 8/30/05, Neil Bothwick [EMAIL PROTECTED] wrote: On Tue, 30 Aug 2005 15:03:49 -0700, Mark Knecht wrote: I have /boot, swap and / on normal partitions, everything else on LVM. / is only 300MB, as /usr is on an LVM2 partition, /var and /opt are bound to directories in /usr. I kow I could put / on LVM, but that requires an initrd, which adds unnecessary complication IMO. OK, so if sda1 == /boot sda2 == swap sda3 == / are on 'normal' partitions, then is LVM2 your last of 4 partitions or is it in an extended partition to allow for other things later on the drive? They're on RAID partitions now, but all of those are extended. Before I added the second drive, they were directly on extended partitions. I never use primary partitions on Linux-only boxes, I don't see the point is adding another limitation. It was sda5 - /boot sda6 - swap sda7 - / sda8 - LVM If you're concerned that you may need non-LVM space later, leave a gap between 7 and 8. That way you have the choice later of extending / or adding another partition and adding it to LVM. Thanks Neil. Very interesting. I seem to be having too much trouble here getting LVM2 to set up. I'm getting error messages and it wouldn't set up the user directory at all. I don't know what's the matter yet. As I'm somewhat anxious to get the machine running at all (I have some PCI card issues I want to test) I'm going to do a quick install much as BillK did where I'll just use 10GB for now and put everything except boot in there. I'll bring the machine up and see how it goes. After that I'll revisit the LVM2 stuff. thanks for your help. Cheers, Mark -- gentoo-user@gentoo.org mailing list
[gentoo-user] lvm2/external partitions question
Hi, My new A8N-E/AMD64 hardware came up the first time. SATA/DVD/CDRW all seen. LiveCD boots fine. memtest86 has been running for the last hour and looks good so far. All looks good so I'll start a Gentoo install pretty soon. I'm looking at LVN2 for this install. The main drive is 250GB. I'm wondering a couple of things: 1) Should use all of the drive, other than the boot and swap partitions, for the main LVN partition and then let LVN subdivide it as needs come up as per the Gentoo-wiki on LVN2? This would meen, as I understand it, that there would never been more than real partitions on the drive. 2) Possibly make the main install partition something like 50GB and use the balance of the hard drive outside of LVM2? If I do this and later add a new partition within LVM does that somehow change device numbering (/dev/sdaX) on the external partitions? I don't know why I would do the latter, other than should LVM become inoperable it seems that I could still get at the 200GB that isn't within LVM's control. Since the hardware is new I don't know anything about it's reliability yet and hate to go down a path where data gets trapped in a few weeks if something dies. QUESTION: Are there any performance differences between using LVM and a standard partition? QUESTION 2: does anythign about LVM2 beg for a 2005.1 LiveCD? Mine is 2005.0. Probably I'll do #1 and just live with it but if there's a better way to do it I'd like to hear what and why. Thanks, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] lvm2/external partitions question
My scheme is: 100 M /boot on ext3 (I was going to store some other info there, but its mostly space att) 2G swap 4G reiserfs with a complete, basic gentoo rescue install - if all goes pear shaped, I have a backup including a functioning /boot on this partition. Particularly useful with things like a gateway: you can come up on the rescue partition and provide near normal service/network access while fixing the main problem in a chroot etc. Maintenance of this partition is done offline in a chroot so other than an occasional test, its rarely run in its own right. 4G / on reiserfs with /etc, /root etc remainder (200G is below, and on my main desktop system similarly arranged I have 200G + an extra 60G drive) is all LVM containing /home, /var, /tmp and /usr. This system is mainly a LAMP server/gateway for a home network. it also contains mostly file storage and backups in /home moriah ~ # df -h FilesystemSize Used Avail Use% Mounted on /dev/hda5 3.8G 2.2G 1.6G 59% / udev 252M 2.6M 249M 2% /dev cachedir 3.8G 2.2G 1.6G 59% /lib/splash/cache /dev/vg1/usr 32G 5.9G 27G 19% /usr /dev/vg1/var 48G 2.3G 46G 5% /var /dev/vg1/tmp 16G 33M 16G 1% /tmp /dev/vg1/opt 4.0G 169M 3.9G 5% /opt /dev/vg1/home 77G 26G 52G 34% /home none 252M 0 252M 0% /dev/shm /dev/hda1 92M 18M 69M 21% /boot /dev/hda3 3.8G 1.7G 2.1G 46% /mnt/hda3 moriah ~ # There are probably performance issues, but they are not noticeable in practise. hdparm actually shows a slight speed advantage for the LVM partitions, but there are also error messages so I dont really trust it! BillK On Mon, 2005-08-29 at 17:50 -0700, Mark Knecht wrote: Hi, My new A8N-E/AMD64 hardware came up the first time. SATA/DVD/CDRW all seen. LiveCD boots fine. memtest86 has been running for the last hour and looks good so far. All looks good so I'll start a Gentoo install pretty soon. I'm looking at LVN2 for this install. The main drive is 250GB. I'm wondering a couple of things: 1) Should use all of the drive, other than the boot and swap partitions, for the main LVN partition and then let LVN subdivide it as needs come up as per the Gentoo-wiki on LVN2? This would meen, as I understand it, that there would never been more than real partitions on the drive. 2) Possibly make the main install partition something like 50GB and use the balance of the hard drive outside of LVM2? If I do this and later add a new partition within LVM does that somehow change device numbering (/dev/sdaX) on the external partitions? I don't know why I would do the latter, other than should LVM become inoperable it seems that I could still get at the 200GB that isn't within LVM's control. Since the hardware is new I don't know anything about it's reliability yet and hate to go down a path where data gets trapped in a few weeks if something dies. QUESTION: Are there any performance differences between using LVM and a standard partition? QUESTION 2: does anythign about LVM2 beg for a 2005.1 LiveCD? Mine is 2005.0. Probably I'll do #1 and just live with it but if there's a better way to do it I'd like to hear what and why. Thanks, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] lvm2/external partitions question
On 8/29/05, W.Kenworthy [EMAIL PROTECTED] wrote: My scheme is: 100 M /boot on ext3 (I was going to store some other info there, but its mostly space att) 2G swap 4G reiserfs with a complete, basic gentoo rescue install - if all goes pear shaped, I have a backup including a functioning /boot on this partition. Particularly useful with things like a gateway: you can come up on the rescue partition and provide near normal service/network access while fixing the main problem in a chroot etc. Maintenance of this partition is done offline in a chroot so other than an occasional test, its rarely run in its own right. 4G / on reiserfs with /etc, /root etc remainder (200G is below, and on my main desktop system similarly arranged I have 200G + an extra 60G drive) is all LVM containing /home, /var, /tmp and /usr. This system is mainly a LAMP server/gateway for a home network. it also contains mostly file storage and backups in /home moriah ~ # df -h FilesystemSize Used Avail Use% Mounted on /dev/hda5 3.8G 2.2G 1.6G 59% / udev 252M 2.6M 249M 2% /dev cachedir 3.8G 2.2G 1.6G 59% /lib/splash/cache /dev/vg1/usr 32G 5.9G 27G 19% /usr /dev/vg1/var 48G 2.3G 46G 5% /var /dev/vg1/tmp 16G 33M 16G 1% /tmp /dev/vg1/opt 4.0G 169M 3.9G 5% /opt /dev/vg1/home 77G 26G 52G 34% /home none 252M 0 252M 0% /dev/shm /dev/hda1 92M 18M 69M 21% /boot /dev/hda3 3.8G 1.7G 2.1G 46% /mnt/hda3 moriah ~ # There are probably performance issues, but they are not noticeable in practise. hdparm actually shows a slight speed advantage for the LVM partitions, but there are also error messages so I dont really trust it! BillK Thanks Bill, That's very helpful. To test my understanding /dev/hda1 - boot - 100M /dev/hda2 - swap - 2G /dev/hda3 - NOT CLEAR - the backup/rescue install? /dev/hda4 - LVM - 200G /dev/hda5 - root - 4G So you've placed pretty much the bulk of the machine in LVM and it's working well for you. That's cool. Could you possibly share a bit from your grub.conf file as well as your fstab file? I think with that info I'd be pretty confident when I do the build tomorrow morning. Thanks, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] lvm2/external partitions question
/dev/hda3 is the backup/rescue. What I did last time I built a system, is used this to build a working system. Put it into service, adjust/configure until I am happy. Create the LVM in prep for the main install. Copy the rescue system to the LVM and setup grub. reboot into the main and go from there. The original is then available as a backup. Unless a severe security vul exists, I dont fiddle with it until a major kernel update occurs. Grub is: default 0 fallback 2 timeout 5 splashimage=(hd0,0)/grub/splash.xpm.gz configfile=(hd0,0)/grub/grub.conf title=Gentoo Sources (2.6.13-r7) resume root (hd0,0) kernel (hd0,0)/linux-2.6.13-rc7 root=/dev/hda5 splash=verbose vga=0x317 elevator=cfq gentoo=nodevfs resume2=swap:/dev/hda2 title=Gentoo Sources (2.6.13-r7) NOresume root (hd0,0) kernel (hd0,0)/linux-2.6.13-rc7 root=/dev/hda5 splash=verbose vga=0x317 elevator=cfq gentoo=nodevfs resume2=swap:/dev/hda2 noresume ... title=Gentoo Sources (2.6.11-r9) RESCUE root (hd0,0) kernel (hd0,0)/linux-2.6.11-gentoo-r9 root=/dev/hda3 splash=verbose elevator=cfq gentoo=nodevfs resume2=swap:/dev/hda2 noresume __ I am using a patched for suspend2 kernel (vanilla here, but gentoo sources when its available. I do not use genkernel: it has caused me too many problems in the past. BillK On Mon, 2005-08-29 at 21:28 -0700, Mark Knecht wrote: On 8/29/05, W.Kenworthy [EMAIL PROTECTED] wrote: My scheme is: ... Thanks Bill, That's very helpful. To test my understanding /dev/hda1 - boot - 100M /dev/hda2 - swap - 2G /dev/hda3 - NOT CLEAR - the backup/rescue install? /dev/hda4 - LVM - 200G /dev/hda5 - root - 4G So you've placed pretty much the bulk of the machine in LVM and it's working well for you. That's cool. Could you possibly share a bit from your grub.conf file as well as your fstab file? I think with that info I'd be pretty confident when I do the build tomorrow morning. Thanks, Mark -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] lvm2/external partitions question
On Monday 29 August 2005 07:50 pm, Mark Knecht wrote: Hi, My new A8N-E/AMD64 hardware came up the first time. SATA/DVD/CDRW all seen. LiveCD boots fine. memtest86 has been running for the last hour and looks good so far. All looks good so I'll start a Gentoo install pretty soon. I'm looking at LVN2 for this install. The main drive is 250GB. I'm wondering a couple of things: 1) Should use all of the drive, other than the boot and swap partitions, for the main LVN partition and then let LVN subdivide it as needs come up as per the Gentoo-wiki on LVN2? This would meen, as I understand it, that there would never been more than real partitions on the drive. You can use it all or into chunks of 20GB each as the how-to suggests; either way is fine. When you create your partitions like /usr, /opt, /home, etc. what I would suggest is give them 5GB or so each. Then when you need more space you can run /sbin/lvresize to give it more space and then adjust the file system with resize_reiserfs (if your using reiserfs), to resize them as needed. I use reiserfs on everything and I've done it on live file systems like /usr, /var, /home without needed to unmount them.I've been using LVM2 for a couple months now and so far I'm pretty pleased with it. Anyway, just my 2 cents.. -- Chris Linux 2.6.12-gentoo-r9 i686 AMD Athlon(tm) XP 00:10:21 up 5:29, 6 users, load average: 1.68, 1.58, 1.42 -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] lvm2/external partitions question
Am Dienstag, 30. August 2005 06:28 schrieb ext Mark Knecht: That's very helpful. To test my understanding /dev/hda1 - boot - 100M Way too much. /dev/hda2 - swap - 2G Can be on a logical volume, too. /dev/hda3 - NOT CLEAR - the backup/rescue install? Why? Use the LiveCD. /dev/hda4 - LVM - 200G /dev/hda5 - root - 4G Can also be on a logical volume, but needs an initrd/initramfs. 4G is too large, IMHO. Mine is 256M. So you've placed pretty much the bulk of the machine in LVM and it's working well for you. That's cool. I've even placed _all_ of my machines on logical volumes (using EVMS), and it also works well. Could you possibly share a bit from your grub.conf file as well as your fstab file? I think with that info I'd be pretty confident when I do the build tomorrow morning. Partition table: # fdisk -l /dev/hda Disk /dev/hda: 10.0 GB, 10005037056 bytes 240 heads, 63 sectors/track, 1292 cylinders Units = cylinders of 15120 * 512 = 7741440 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 8 60448+ 83 Linux /dev/hda2 91292 9707040 83 Linux Everything below resides on hda2. /etc/fstab: /dev/evms/root / reiserfsdefaults,acl 0 1 /dev/evms/usr /usrreiserfsdefaults,acl 0 2 /dev/evms/var /varreiserfsdefaults,acl 0 2 /dev/evms/opt /optreiserfsdefaults,acl 0 2 /dev/evms/build /gentoo/build reiserfsdefaults,acl 0 2 /dev/evms/distfiles /gentoo/distfiles reiserfsdefaults,acl 0 2 /dev/evms/swap noneswapsw 0 0 Sizes: # df -h|grep evms /dev/evms/root256M 132M 125M 52% / /dev/evms/usr 3.0G 2.6G 452M 86% /usr /dev/evms/var 384M 210M 174M 55% /var /dev/evms/opt 512M 497M 16M 97% /opt /dev/evms/build 2.7G 1.5G 1.2G 57% /gentoo/build /dev/evms/distfiles 1.5G 1.4G 127M 92% /gentoo/distfiles Note that this machine gets $HOME from NFS, so I don't list it here. I would usually create a separate volume for each users home dir, so that I don't have to care about quota (if needed). grub.conf: title Gentoo Linux 2.6 kernel /vmlinuz-2.6.12.3 root=/dev/ram0 realroot=/dev/evms/root vga=794 initrd=/initrd-2.6.12.3.gz Note that I use a self-made initrd, which activates the EVMS volumes (needed because / is an EVMS volume, too), does a pivot_root from root to realroot and then starts up the real thing. Bye... Dirk -- Dirk Heinrichs | Tel: +49 (0)162 234 3408 Configuration Manager | Fax: +49 (0)211 47068 111 Capgemini Deutschland | Mail: [EMAIL PROTECTED] Hambornerstraße 55 | Web: http://www.capgemini.com D-40472 Düsseldorf | ICQ#: 110037733 GPG Public Key C2E467BB | Keyserver: www.keyserver.net pgpQvhTwn9LS3.pgp Description: PGP signature
