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<h3>debian ext3-LVM-dsl notes</h3> |
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<br> |
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Sebastian Utz <seut@netfrag.org> |
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<hr/> |
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Description: |
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- install & configure pppoe(ADSL) |
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- ext3 shortcuts |
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- LVM (Logical Volume Manager) shortcuts |
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FIRST CHECK if |
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kernel with built-in(boot ext3 or lvm!) or module supported ext3 and lvm is running! |
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- EXT3: |
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- convert fs to ext3 |
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tune2fs -j /dev/sdaXX |
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- create new ext3-fs (normally already done in default-(guided)-setup) |
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mke2fs -j /dev/sdaXX |
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- auto-check-every-n-mounts/days/seconds |
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tune2fs -i 0 /dev/sdaXX |
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|
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- Mouse: |
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- Install packet "gpm" |
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|
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- ADSL: |
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- Install packet "pppoe" and "pppoeconf" |
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- Run "pppoeconf" or |
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- Edit /etc/ppp/peers/dsl-provider (modify "user"-entry) |
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- Edit /etc/ppp/pap-secrets (add entry) |
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- Connect with "pon dsl-provider" or use start-stop script at /etc/init.d/ppp |
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- Disconnect with "poff dsl-provider" or use start-stop script at /etc/init.d/ppp |
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|
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- LVM |
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- install packet "lvm(>>0.9)" and "lvm-common" |
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(currently not in the Debian/testing(woody) package-set, |
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search it at the unstable sets!) |
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|
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- create LVM-partitions with "fdisk /dev/sdx" |
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- "d" and partition-nr "y" for delete partition "sdxy" |
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- "n" and parition-nr "y" for add partition "sdxy" |
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- "t" partition-nr "y" and hex-code "8e" for |
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change /dev/sdxy to LVM partition-type |
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- "w" for write partition table and quit |
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|
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- do a "pvcreate /dev/sd[ce]1" |
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For testing purposes you can use more than one partition on a disk. |
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You should not use more than one partition because in the case of |
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a striped LV you'll have a performance breakdown. |
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|
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- do a "vgcreate test_vg /dev/sd[ce]1" to create the new VG named "test_vg" |
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which has the total capacity of both partitions. |
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vgcreate activates (transfers the metadata into the LVM driver in the kernel) |
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the new volume group too to be able to create LVs in the next step. |
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|
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- do a "lvcreate -L1500 -ntest_lv test_vg" to get a 1500MB linear LV named |
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"test_lv" and it's block device special "/dev/test_vg/test_lv". |
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|
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Or do a "lvcreate -i2 -I4 -l1500 -nanother_test_lv test_vg" to get a 100 LE |
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large logical volume with 2 stripes and stripesize 4 KB. |
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|
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- For example generate a ext3 filesystem in one LV with |
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"mke2fs -j /dev/test_vg/test_lv" and mount it. |
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|
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- extend /dev/test_vg/test_lv to 1600MB with relative size by |
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"lvextend -L+100 /dev/test_vg/test_lv" |
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or with absolute size by |
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"lvextend -L1600 /dev/test_vg/test_lv" |
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|
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- reduce /dev/test_vg/test_lv to 900 logical extents with relative extents by |
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"lvreduce -l-700 /dev/test_vg/test_lv" |
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or with absolute extents by |
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"lvreduce -l900 /dev/test_vg/test_lv" |
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|
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- rename a VG by deactivating it with |
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"vgchange -an test_vg" # only VGs with _no_ open LVs can be deactivated! |
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"vgrename test_vg whatever" |
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and reactivate it again by |
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"vgchange -ay whatever" |
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|
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- rename a LV after closing it by |
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"lvchange -an /dev/whatever/test_lv" # only closed LVs can be deactivated |
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"lvrename /dev/whatever/test_lv /dev/whatever/whatvolume" |
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or by |
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"lvrename whatever test_lv whatvolume" |
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and reactivate it again by |
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"lvchange -ay /dev/whatever/whatvolume" |
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|
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- if you own Ted Tso's/Powerquest's resize2fs program, you are able to |
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resize the ext2 type filesystems contained in logical volumes without |
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destroyiing the data by |
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"e2fsadm -L+100 /dev/test_vg/another_test_lv" |
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|
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<hr/> |
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$Id$ |
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