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DIY: Live CD/DVD (Update)

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Douglas Mayne

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Jan 10, 2006, 10:15:50 AM1/10/06
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I have been working on updating the project I wrote about here:
http://groups.google.com/group/alt.os.linux.slackware/msg/cbf8cf62ee649c96?hl

I have made some major changes to the critical component, linuxrc.
It now more user-friendly, and it does more error checking to validate
its environment. The project is encapsulated as a bootable CD, and I
I think it could benefit from more testing now. I will post an ISO of the
CD to alt.binaries.cd.image.linux later today. Unfortunately, the size
of the ISO is 250M (compressed.)

Here is the update to linuxrc:
http://www.xmission.com/~ddmayne/10.2-live/source/linuxrc

Here is the documentation:
http://www.xmission.com/~ddmayne/10.2-live/README

The CD boots into a user environment with these Slackware packages
installed:
http://www.xmission.com/~ddmayne/10.2-live/packages

Here is the license:
http://www.xmission.com/~ddmayne/10.2-live/LICENSE
http://www.xmission.com/~ddmayne/10.2-live/COPYING

--
Johnny: I need a computer!
http://www.imdb.com/title/tt0113481/quotes

Douglas Mayne

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Jan 10, 2006, 7:45:39 PM1/10/06
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To be posted shortly,

A gz compressed iso image, split into 10 parts:

87c5800fa95e893df12ac2aca89bd153 ./10.2-live.iso.gz.aa
870607b1b39279dfacec1ddbcfd24837 ./10.2-live.iso.gz.ab
b8fa9414a0f5081a42be27df6eb1f339 ./10.2-live.iso.gz.ac
cc96a94e9b90c122ef2ce5a0fd72abac ./10.2-live.iso.gz.ad
439f1afeef0b176b180ac759589fe50c ./10.2-live.iso.gz.ae
fa20a5394506785a6302f5bc88950ff1 ./10.2-live.iso.gz.af
05907332a35950a4259a7562bec54d8a ./10.2-live.iso.gz.ag
b811cecb436cd993172215330c261250 ./10.2-live.iso.gz.ah
6044b6544a2b2340366fc08690ed78d5 ./10.2-live.iso.gz.ai
e23a628f6b5c0ae09cb407370813c03c ./10.2-live.iso.gz.aj

cat $(find . -type f -name "10.2-live.iso.gz.a*"| sort) >10.2-live.gz
cat 10.2-live.iso.gz | gzip -cd >10.2-live.iso

or without the intermediate,

cat $(find . -type f -name "10.2-live.iso.gz.a*"| sort) | gzip -cd >10.2-live.iso

Then verify md5sums and burn iso image as bootable cd.

3fe5f47cca109f65ffd29ebb89c3947c ./10.2-live.iso.gz
42652c80490da1f29be3beaa9145b8da ./10.2-live.iso

Here are some stats of it running:
# df
Filesystem 1K-blocks Used Available Use% Mounted on
unionfs 441068 225216 200852 53% /
/dev/hdc 448926 448926 0 100% /mnt/hdc
/dev/loop0 290503 224943 50560 82% /mnt/ro_loop

# cat /proc/version
Linux version 2.6.14.3slack-pv (root@slack_rescue) (gcc version 3.4.5) #1 Mon Dec 19 18:07:37 MST 2005

cat /proc/meminfo
MemTotal: 301136 kB
MemFree: 194656 kB
Buffers: 34240 kB
Cached: 60060 kB
SwapCached: 0 kB
Active: 46568 kB
Inactive: 49324 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 301136 kB
LowFree: 194656 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
Mapped: 3676 kB
Slab: 7316 kB
CommitLimit: 150568 kB
Committed_AS: 5332 kB
PageTables: 200 kB
VmallocTotal: 729044 kB
VmallocUsed: 2356 kB
VmallocChunk: 722920 kB

--
Douglas Mayne

Douglas Mayne

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Jan 12, 2006, 11:34:44 AM1/12/06
to
On Tue, 10 Jan 2006 17:45:39 -0700, Douglas Mayne wrote:

> On Tue, 10 Jan 2006 08:15:50 -0700, Douglas Mayne wrote:
>
>> I have been working on updating the project I wrote about here:
>> http://groups.google.com/group/alt.os.linux.slackware/msg/cbf8cf62ee649c96?hl
>>
>> I have made some major changes to the critical component, linuxrc.
>> It now more user-friendly, and it does more error checking to validate
>> its environment. The project is encapsulated as a bootable CD, and I
>> I think it could benefit from more testing now. I will post an ISO of the
>> CD to alt.binaries.cd.image.linux later today. Unfortunately, the size
>> of the ISO is 250M (compressed.)
>>
>> Here is the update to linuxrc:
>> http://www.xmission.com/~ddmayne/10.2-live/source/linuxrc
>>
>> Here is the documentation:
>> http://www.xmission.com/~ddmayne/10.2-live/README
>>
>> The CD boots into a user environment with these Slackware packages
>> installed:
>> http://www.xmission.com/~ddmayne/10.2-live/packages
>>
>> Here is the license:
>> http://www.xmission.com/~ddmayne/10.2-live/LICENSE
>> http://www.xmission.com/~ddmayne/10.2-live/COPYING
>>
> To be posted shortly,
>

<snip>
>
I was unable to post the files to the binaries newsgroups. The block size
I wanted to use was too large for my newsserver. I also realized I could
avoid the problems with multiple blocks by posting the ISOs directly to
the web. So, I decided to try it that way.

Here is are the links to the files
http://www.xmission.com/~ddmayne2/boot.iso.gz
http://www.xmission.com/~ddmayne2/sd1.iso
http://www.xmission.com/~ddmayne2/sd2.iso

File MD5SUMS: http://www.xmission.com/~ddmayne2/MD5SUMS

7e8b337de1e4c5ef3717ecc1ab22b744 boot.iso.gz
d341e35a5bcc68639e627dd446e2529e boot.iso
5d34d7f66e1525de479cb82ec45db0e4 sd1.iso
2d569c268374bbf4435e45eba94147a0 sd2.iso

File Sizes: http://www.xmission.com/~ddmayne2/sizes

./boot.iso.gz 133353488
./boot.iso 344633344 (when expanded)
./sd1.iso 157898752
./sd2.iso 683124736

BTW, I decided to rearrange the layout of the CDs when I decided to post
the images directly to the web. I moved the source code which had been
on the bootable CD to its own iso (sd1.iso). The remainder of the
source code is sd2.iso. The source CDs are posted without compression
because they are not very compressible. This rearrangemnt reduced the
download size for the bootable CD to 133M.

After the gz compressed bootable image is downloaded, then expand using
something like this:

cat boot.iso.gz | gzip -cd >boot.iso

Also, sd2.iso has not been uploaded to the web, yet. It will be uploaded
later today.

--
Douglas Mayne

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